Concurrent validity between field tests and cardiopulmonary exercise testing in patients with idiopathic pulmonary fibrosis.

BACKGROUND: Maximal treadmill cardiopulmonary exercise testing is the gold standard for assessing functional capacity in patients with idiopathic pulmonary fibrosis (IPF). PURPOSE: Primarily to investigate the concurrent validity between three field tests and cardiopulmonary exercise testing in these patients. METHODS: Patients performed the cardiopulmonary exercise testing, a six-minute walk test, an incremental shuttle walk test, and, the Glittre-ADL test. For cardiopulmonary exercise testing, the ten seconds with the higher average of the peak oxygen uptake obtained within the last 30 seconds were considered; for six-minute walk test and incremental shuttle walk test, the longer distance; and for the Glittre-ADL test, the shorter time spent. Concurrent validity was assessed using different regression models based on the best adjustment of the data. RESULTS: Twenty-two patients with IPF were assessed, aged: 68 ± 8.1 years, 13 male. Patients presented a peak oxygen uptake of 16.5 ± 3.6 mL.kg-1.min1, achieving a distance of 512.6 ± 102.8 meters in the six-minute walk test and 415.7 ± 125.1 meters in incremental shuttle walk test. The walking distance in the six-minute walk test and the incremental shuttle walk test explained, respectively, 64% and 56% peak oxygen uptake variance observed in the cardiopulmonary exercise testing (R2 = 0.64,p < .001; R2 = 0.56,p < .001). The time spent in the Glittre-ADL test was 233.4 ± 88.7 seconds and explained 47% of the peak oxygen uptake variance observed in cardiopulmonary exercise testing (R2 = 0.47,p = .001). CONCLUSION: The six-minute walk test, incremental shuttle walk test, and Glittre-ADL test were considered valid tests to explain the peak oxygen uptake variance obtained by the cardiopulmonary exercise testing in patients with IPF.

Assessment of V̇o2peak and Exercise Capacity After Stroke: A Validity Study of the Human Activity Profile Questionnaire.

OBJECTIVE: To investigate the concurrent validity of the Human Activity Profile (HAP) in individuals after stroke to provide the peak oxygen uptake (V̇o2peak) and the construct validity of the HAP to assess exercise capacity, and to provide equations based on the HAP outcomes to estimate the distance covered in the Incremental Shuttle Walking Test (ISWT). DESIGN: Cross-sectional study. SETTING: University laboratory. PARTICIPANTS: Individuals (N=57) aged 54±11 years who have experienced stroke. INTERVENTION: Not applicable. MAIN OUTCOME MEASURES: Agreement between the V̇o2peak provided by the HAP (lifestyle energy consumption [LEC] outcome, in mL/kg-1/min-1) and the criterion standard measure of the V̇o2peak (mL/kg-1/min-1), obtained through the symptom-limited Cardiopulmonary Exercise Test (CPET). Correlation between the HAP outcomes (LEC, maximum activity score [MAS], and adjusted activity score [AAS]) and the construct measure: the distance covered (in meters) in the ISWT. An equation to estimate the distance covered in the ISWT was determined. RESULTS: High magnitude agreement was found between the V̇o2peak, in mL/kg-1/min-1, obtained by the symptom-limited CPET and the value of V̇o2peak, in mL/kg-1/min-1, provided by the HAP (LEC) (intraclass correlation coefficient, 0.75; P<.001). Low to moderate magnitude correlations were found between the distance covered in the ISWT and the HAP (LEC/MAS/AAS) (0.34≤ρ≤0.58). The equation to estimate the distance covered in the ISWT explained 31% of the variability of the ISWT (ISWTestimated, -361.91+(9.646xAAS)). CONCLUSION: The HAP questionnaire is a clinically applicable way to provide a valid value of V̇o2peak (in mL/kg-1/min-1) and to assess the exercise capacity of individuals after stroke. Furthermore, an equation to estimate the distance covered in the submaximal field exercise test (ISWT) based on the result of the AAS (in points) was provided.

Effects of two modalities of noninvasive ventilation on breathing pattern of very low birth weight preterm infants immediately after extubation: a quasi-experimental study.

AIM: The primary objective of this study was to investigate the effects of two modalities of noninvasive ventilation, continuous positive airway pressure-CPAP and non-synchronized nasal intermittent positive pressure ventilation-nsNIPPV, on breathing pattern of very low birth weight preterm infants immediately after extubation. METHODS: It was conducted a quasi-experimental study at a public university hospital. Infants with gestacional age ≤32 weeks and birth weight ≤1,500 g were randomized into the sequences, prior extubation: CPAP - nsNIPPV (1) or nsNIPPV - CPAP (2). Each preterm infant was studied for a period of 60 min in each ventilatory mode. Respiratory inductive plethysmography was used to assess breathing pattern. Inferential analysis was performed by repeated measures ANOVA or Friedman test. RESULTS: Eleven preterm infants were studied and a total of 7,564 respiratory cycles were analyzed. No significant differences were observed in any of the comparisons made for any of the breathing pattern variables (p > .05). CONCLUSIONS: There was no significant difference on breathing pattern between CPAP and nsNIPPV of preterm infants after extubation.

Incentive spirometer: Aspects of the clinical practice of physical therapists from Minas Gerais working with patients with respiratory dysfunction.

BACKGROUND: Incentive spirometers (ISs) are clinical devices used in respiratory physical therapy to increase alveolar ventilation and functional residual capacity. OBJECTIVES: To investigate factors that influence physical therapists from Minas Gerais in selecting a type of IS and the scientific background behind the use of ISs by physical therapists who work with patients with respiratory dysfunctions. METHODS: Physical therapists from 13 hospital and non-hospital institutions (public/private) completed a self-administered questionnaire based on the current evidence on ISs. RESULTS: Indications and contraindications of ISs are not fully understood by most of the 168 physical therapists who completed the questionnaire. Volume-oriented IS was preferred over flow-oriented IS. However, only half of the physical therapists have a scientific background to justify the choice of one IS type rather than the other. CONCLUSIONS: Most physical therapists from Minas Gerais do not fully understand the indications and contraindications for ISs. Despite physical therapists stating their preference for volume-oriented IS, this choice is not necessarily based on current scientific evidence. The development of strategies to bring physical therapists closer to evidence-based practice is necessary to ensure best patient care.

Reference values for the Unsupported Upper Limb Exercise test in healthy adults in Brazil.

OBJECTIVE: To establish reference values for the Unsupported Upper Limb EXercise (UULEX) test, which measures peak arm exercise capacity, in healthy adults in Brazil. METHODS: This was a cross-sectional study, involving presumably healthy individuals ≥ 30 years of age who completed questionnaires and underwent spirometry. All of the individuals underwent two UULEX tests 30-min apart. The outcome measure was the maximum time (in min) to completion of the test. RESULTS: We included 100 individuals between 30 and 80 years of age. The mean test completion time was 11.99 ± 1.90 min among the women and 12.89 ± 2.15 min among the men (p = 0.03). The test completion time showed statistically significant correlations with age (r = -0.48; p < 0.001), gender (r = 0.28; p = 0.004), body mass index (BMI, r = -0.20; p = 0.05), and height (r = 0.28; p = 0.005). Linear regression analysis showed that the predictors of UULEX completion time were age (p = 0.000), BMI (p = 0.003), and gender (p = 0.019), which collectively explained 30% of the total variability. The mean UULEX completion time was 6% lower for the women than for the men. CONCLUSIONS: The present study was able to establish reference values for the UULEX test in healthy adults in Brazil. The values were influenced by age, gender, and BMI.

Comparação das respostas fisiológicas do incremental shuttle walk test e do Glittre-ADL test: instrumentos complementares para avaliação da capacidade funcional / Comparación de las respuestas fisiológicas de incremental shuttle walk test y de Glittre-ADL test: instrumentos complementarios para evaluar la capacidad funcional / Comparison of the physiological responses of the Incremental Shuttle Walk test and Glittre-ADL test: complementary instruments for the evaluation of functional capacity

RESUMO O objetivo deste estudo foi avaliar e comparar respostas metabólicas, cardiovasculares e ventilatórias do incremental shuttle walk test (ISWT) e do Glittre activities of daily living test (Glittre-ADL test). Trata-se de um estudo transversal, realizado com indivíduos saudáveis. A capacidade funcional (CF) foi avaliada pela distância percorrida e consumo de oxigênio pico (VO2pico) no ISWT e pelo tempo gasto e VO2 no Glittre-ADL test. Trinta indivíduos percorreram 656,67 (IC95%:608,8-704,5) metros no ISWT e executaram o Glittre-ADL test em 2,4 (IC95%:2,2-2,6) minutos. O VO2 pico do ISWT foi 27,8 (IC95%25,6-29,9) versus 22,2 (IC95%20,5-24,1)mL×kg−1×min−1 (p<0,001) no estado estável (EE) do Glittre-ADL test. As correlações entre distância percorrida no ISWT e o tempo gasto no Glittre-ADL test, o VO2pico do ISWT e o VO2 no EE do Glittre-ADL test e a FC no pico do ISWT e no EE do Glittre-ADL test foram de moderada a alta magnitude. O Glittre-ADL test apresenta menores respostas metabólicas, cardiovasculares e ventilatórias se comparado ao ISWT.

RESUMEN El presente estudio tuvo el objetivo de evaluar y comparar las respuestas metabólicas, cardiovasculares y ventilatorias de incremental shuttle walk test (ISWT) y de Glittre activities of daily living test (Glittre-ADL test). Es un estudio transversal realizado con individuos sanos. La capacidad funcional (CF) se evaluó utilizando la distancia recorrida y consumo máximo de oxígeno (VO2máx) en el ISWT y el tiempo empleado y VO2 en el Glittre-ADL test. Treinta individuos caminaron 656,67 (IC95%:608,8-704,5) metros en el ISWT y realizaron el Glittre-ADL test en 2,4 (IC95%:2,2-2,6) minutos. El VO2 máx del ISWT fue de 27,8 (IC95%25,6-29,9) versus 22,2 (IC95%20,5-24,1)mL×kg−1×min−1 (p<0,001) en el estado estable (EE) del Glittre-ADL test. Las correlaciones entre la distancia recorrida en el ISWT y el tiempo empleado en el Glittre-ADL test, el VO2máx del ISWT y el VO2 en el EE de Glittre-ADL test y la FC en el máximo del ISWT y en el EE de Glittre-ADL test fueron de moderada a alta magnitud. El Glittre-ADL test presenta respuestas metabólicas, cardiovasculares y ventilatorias más bajas en comparación con el ISWT.

ABSTRACT The aim of the study was to assess and compare the cardiovascular, ventilatory and metabolic responses of the Incremental Shuttle Walk test (ISWT) and Glittre Activities of Daily Living test (Glittre-ADL test). This is a cross-sectional study with individuals. The functional capacity (FC) was evaluated by distance and peak oxygen consumption (VO2peak) in the ISWT and time spent and VO2 in Glittre-ADL test. Thirty individuals went through 656.67 (CI95%:608.8-704.5) meters at the ISWT and performed the Glittre-ADL test in 2.4 (CI95%:2.2-2.6) minutes. The peak VO2 of the ISWT was 27.8 (CI95%25.6-29.9) vs. 22.2 (CI95%20.5-24.1) mL×kg−1×min−1 (p<0.001) in the steady state (SS) of the Glittre-ADL test. Correlations between distance traveled in the ISWT and the time spent in Glittre-ADL test, VO2 peak of ISWT and VO2 in SS of Glittre-ADL test and HR at the ISWT peak and at the Glittre-ADL test SS were moderate to high magnitude. The Glittre-ADL test has lower metabolic, cardiovascular and ventilatory responses compared to ISWT, despite correlations between variables.

Normative Values for the Unsupported Upper Limb Exercise Test and 6-Minute Pegboard and Ring Test in Healthy Canadian Adults.

Purpose: We determined normative values for the Unsupported Upper Limb Exercise (UULEX) test and the 6-Minute Pegboard and Ring Test (6PBRT) in a sample of healthy Canadian adults aged 40-89 years. Method: Volunteers completed the UULEX test and the 6PBRT twice with an interval of 30 minutes between tests or after the variables of interest had returned to their baseline values. Results: A total of 97 volunteers completed the tests (53.4% female); their mean age was 64.3 (SD 13.9) years. Mean UULEX scores were 11.4 (SD 3.0) minutes for women and 12.4 (SD 2.5) minutes for men. The mean 6PBRT score was 404.7 (SD 100.1) rings moved. For both tests, younger individuals' scores were higher. As volunteers' age increased, their functional performance on both tests was reduced: UULEX, r = -0.50 (p = 0.001), and 6PBRT, r = -0.60 (p = 0.001). Conclusions: These normative values increase the usefulness of these tests as measures of upper limb function.

Objectif : déterminer les valeurs normatives des tests UULEX (Unsupported Upper Limb Exercise ou exercice des membres supérieurs sans appui) et 6PBRT (6-Minute Pegboard and Ring Test ou test du panneau perforé et de l'anneau en six minutes) au sein d'un échantillon d'adultes canadiens en santé de 40 à 89 ans. Méthodologie : exécution des tests UULEX et 6PBRT deux fois dans un intervalle de 30 minutes ou après le retour des variables d'intérêt aux valeurs de référence. Résultats : au total, 97 volontaires (53,4 % de femmes) d'un âge moyen de 64,3 ans (ÉT 13,9) ont effectué les tests. Le score moyen au test UULEX était de 11,4 minutes (ÉT 3,0) pour les femmes et de 12,4 minutes (ÉT 2,5) pour les hommes, et celui au test 6PBRT, de 404,7 anneaux déplacés (ÉT 100,1). Aux deux tests, les scores étaient plus élevés chez les plus jeunes. En effet, le rendement fonctionnel aux deux tests diminuait proportionnellement à l'âge : test UULEX (r = ­0,50; p = 0,001) et test 6PBRT (r = ­0,60; p = 0,001). Conclusion : ces valeurs normatives accroissent l'utilité de ces tests pour mesurer la fonction des membres supérieurs.

Influence of posture, sex, and age on breathing pattern and chest wall motion in healthy subjects.

OBJECTIVE: We evaluated the effects of posture, sex, and age on breathing pattern and chest wall motion during quiet breathing in healthy participants. METHODS: Eighty-three participants aged 42.72 (SD=21.74) years presenting normal pulmonary function were evaluated by optoelectronic plethysmography in the seated, inclined (with 45° of trunk inclination), and supine positions. This method allowed to assess the chest wall in a three dimensional way considering the chest wall as three compartments: pulmonary rib cage, abdominal rib cage and abdomen. RESULTS: Posture influenced all variables of breathing pattern and chest wall motion, except respiratory rate and duty cycle. Chest wall tidal volume and minute ventilation were reduced (p<0.05) in both sexes from seated to inclined and from seated to supine positions, mainly in males. Moreover, moving from seated to supine position significantly increased the percentage contribution of the abdomen to the tidal volume in both sexes (p<0.0001). Regarding sex, women showed higher contribution of thoracic compartment compared to men (p=0.008). Aging provided reductions on rib cage contributions to tidal volume that were compensated by increases of abdomen contributions (p<0.0001). In addition, increases in end-inspiratory and end-expiratory volumes over the years were observed. CONCLUSION: The degree of contribution of chest wall compartments is dependent on posture, sex, and age. Therefore, verticalization increases expansion of pulmonary rib cage as well as horizontalization increases abdominal displacement. Women presented higher thoracic contribution to tidal volume than men. Aging reduces rib cage contributions to tidal volume that were compensated by increases of abdomen contributions.

Limitação do VEINES QOL/SYM em discriminar a gravidade da insuficiência venosa crônica / Limitations of VEINES QOL/SYM for discriminating chronic venous insufficiency severity

Resumo Contexto O questionário Venous Insufficiency Epidemiological and Economic Study - Quality of Life/Symptom (VEINES-QOL/Sym) foi desenvolvido para avaliar a qualidade de vida dos indivíduos com insuficiência venosa crônica (IVC), mas ele tem se mostrado pouco sensível em discriminar indivíduos com diferentes gravidades da doença. Objetivos a) Propor uma nova forma de cálculo do escore do VEINES-QOL/Sym e avaliar se esse novo escore é capaz de discriminar a gravidade da doença; b) Avaliar a associação entre o VEINES-QOL/Sym e a gravidade da doença. Métodos Noventa e oito participantes com IVC, de ambos os sexos, idade 60,73 ± 14,11 anos, responderam o questionário VEINES-QOL/Sym, versão português do Brasil. Para o cálculo do novo escore, foi realizada uma transformação dos escores originais para uma escala de 0 a 100. Para verificar a capacidade dos escores do VEINES-QOL/Sym, originais e modificados, em discriminar e classificar corretamente os grupos caracterizados pela classificação clínica, etiológica, anatômica e patofisiológica (CEAP), foi realizada a análise discriminante, sendo considerado significante um alfa de 5%. Resultados Não houve diferença significativa entre os grupos classificados pela CEAP quanto aos escores originais e modificados do VEINES-QOL/Sym. A análise discriminante também não foi capaz de classificar corretamente os grupos CEAP, tanto para os escores originais quanto para os escores modificados do VEINES-QOL/Sym. Além disso, não houve associação entre a classificação CEAP e os escores obtidos pelo questionário. Conclusões O VEINES-QOL/Sym mostrou-se limitado para avaliar qualidade de vida e sintomatologia dos indivíduos com diferentes estágios de IVC.

Abstract Background The Venous Insufficiency Epidemiological and Economic Study - Quality of Life/Symptoms (VEINES-QOL / Sym) questionnaire was developed to evaluate the quality of life of individuals with chronic venous insufficiency (CVI), but it has shown limited sensitivity for discriminating between people with different of disease severity. Objectives a) to propose a new formula for calculating the VEINES-QOL/Sym score and to evaluate whether this new score is capable of discriminating disease severity; and b) to evaluate the association between VEINES-QOL/Sym scores and disease severity. Methods Ninety-eight participants with CVI of both sexes, aged 60.73 ± 14.11 years, answered the Portuguese Brazilian version of the VEINES-QOL/Sym questionnaire. The new score was calculated by transforming the original scores to a 0 to 100 scale. Discriminant analysis was used to test the capability of the original and modified VEINES-QOL/Sym scores to discriminate between and correctly classify groups characterized by the clinical, etiological, anatomical and pathophysiological classification (CEAP). Alpha of 5% was defined as the cutoff for significance. Results There were no significant differences between CEAP groups in terms of the original or modified VEINES-QOL/Sym scores. Discriminant analysis was also unable to correctly classify CEAP groups, using either original or modified scores. Furthermore, there were no associations between CEAP classifications and scores obtained using the questionnaire. Conclusions The VEINES-QOL/Sym proved to have limitations for assessment of the quality of life and symptomatology of people with CVI at different stages.

Reference values for the Unsupported Upper Limb Exercise test in healthy adults in Brazil / Valores normativos para o teste Unsupported Upper Limb Exercise para adultos saudáveis no Brasil

ABSTRACT Objective: To establish reference values for the Unsupported Upper Limb EXercise (UULEX) test, which measures peak arm exercise capacity, in healthy adults in Brazil. Methods: This was a cross-sectional study, involving presumably healthy individuals ≥ 30 years of age who completed questionnaires and underwent spirometry. All of the individuals underwent two UULEX tests 30-min apart. The outcome measure was the maximum time (in min) to completion of the test. Results: We included 100 individuals between 30 and 80 years of age. The mean test completion time was 11.99 ± 1.90 min among the women and 12.89 ± 2.15 min among the men (p = 0.03). The test completion time showed statistically significant correlations with age (r = −0.48; p < 0.001), gender (r = 0.28; p = 0.004), body mass index (BMI, r = −0.20; p = 0.05), and height (r = 0.28; p = 0.005). Linear regression analysis showed that the predictors of UULEX completion time were age (p = 0.000), BMI (p = 0.003), and gender (p = 0.019), which collectively explained 30% of the total variability. The mean UULEX completion time was 6% lower for the women than for the men. Conclusions: The present study was able to establish reference values for the UULEX test in healthy adults in Brazil. The values were influenced by age, gender, and BMI.

RESUMO Objetivo: Estabelecer valores normativos para o teste Unsupported Upper Limb EXercise (UULEX), que mede o pico de exercício de membros superiores, em adultos saudáveis no Brasil. Métodos: Estudo transversal envolvendo indivíduos com idade ≥ 30 anos considerados saudáveis após serem submetidos a questionários e espirometria. Os indivíduos realizaram dois testes UULEX com intervalo de 30 min entre eles. A variável de desfecho foi o tempo máximo de realização do teste em min. Resultados: Foram incluídos 100 indivíduos com idade entre 30 e 80 anos. As médias de tempo de realização do teste foram de 11,99 ± 1,90 min e 12,89 ± 2,15 min em homens e mulheres, respectivamente (p = 0,03). Houve uma correlação estatisticamente significante entre o tempo de execução do UULEX e idade (r = −0,48; p < 0,001), sexo (r = 0,28; p = 0,004), índice de massa corpórea (IMC; r = −0,20; p = 0,05) e altura (r = 0,28; p = 0,005). A análise de regressão linear mostrou que as variáveis idade (p < 0,001), IMC (p = 0,003) e sexo (p = 0,019) são preditoras do UULEX, explicando 30% da variabilidade total no tempo de realização do teste. A média do tempo de realização do UULEX foi 6% menor nas mulheres que nos homens. Conclusões: O presente estudo foi capaz de fornecer valores normativos para o teste UULEX em adultos saudáveis no Brasil. Esses valores foram influenciados pela idade, sexo e IMC.

Concurrent validity of handgrip strength between the jamar and bulb dynamometers in women with rheumatoid arthitis / Validade concorrente da força de preensão palmar entre os dinamômetros Jamar e de bulbo em mulheres com artrite reumatoide / Validez concurrente de la fuerza de prensión palmar entre los dinamómetros Jamar y de bulbo en mujeres con artritis reumatoide

Abstract Introduction: Rheumatoid arthritis (RA) is a progressive disease that causes deformation and constant joint damage. Handgrip strength (HGS) has been used by several health professionals in clinical practice as a mechanism for assessing muscle strength and overall performance. Objective: To perform the concordance analysis of handgrip strength measurements using a pneumatic dynamometer (Bulb) and a hydraulic dynamometer (Jamar) in women with rheumatoid arthritis. Method: The HGS measurements by the two dynamometers followed the norms of the American Society of Hand Therapists. The concordance between measurements was performed by the Bland-Altman method. Significance level was 5%. Results: In total, 41 women (60.63 ± 8.35 years) participated in the study. Analysis showed that the measures between the two dynamometers were not concordant (bias = 9.04, p < 0.01), there was a linear relationship between the difference of the measures and the mean (r = 0.73, p < 0.01), and the limits of agreement were very extensive (−2.74 to 20.81). Conclusion: Assuming that the rheumatoid arthritis compromises the hands, with a consequent decrease in HGS, further exploration of the subject is suggested in future studies to define the best measure for clinical practice at the different levels of health care. However, since there are many different dynamometers, we suggest to better explore the agreement between the measurements obtained by them in populations under different conditions.

Resumo Introdução: Artrite reumatóide (AR) é uma doença progressiva que causa deformação e comprometimento articular. A força de preensão palmar (FPP) tem sido usada por vários profissionais de saúde, na prática clínica, para avaliar força muscular e desempenho. Objetivo: Analisar a concordância das medidas de força de preensão palmar usando o dinamômetro pneumático (Bulbo) e hidráulico (Jamar) em mulheres com artrite reumatoide. Método: As medidas de FPP pelos dois dinamômetros seguiram as normas da American Society of Hand Therapists. A concordância entre as medidas foi por meio do método de Bland-Altman. Nível de significância de 5%. Resultados: Participaram 41 mulheres (60,63 ± 8,35 anos). A análise entre os dois dinamômetros demonstrou não haver concordância (bias = 9,04, p < 0,01), com uma relação linear entre a diferença das medidas e a média (r = 0,73, p < 0,01) e, os limites de concordância foram muito extensos (-2,74 to 20,81). Conclusão: Como a artrite reumatoide compromete as mãos com consequente diminuição da FPP, é importante explorar melhor este tema para definir a melhor medida para a prática clínica nos diferentes níveis de atenção à saúde. No entanto, devido ao grande número de tipo de dinamômetros, sugere-se novos estudos sobre a concordância destas medidas em populações de diferentes condições.

Resumen Introducción: La artritis reumatoide (AR) es una enfermedad progresiva que causa deformación y compromiso articular. La fuerza de prensión palmar (FPP) ha sido utilizada por varios profesionales de la salud, en la práctica clínica, para evaluar la fuerza muscular y el rendimiento. Objetivo: Analizar la concordancia de las medidas de fuerza de prensión palmar usando el dinamómetro neumático (Bulbo) e hidráulico (Jamar) en mujeres con artritis reumatoide. Método: Las medidas de FPP por los dos dinamómetros siguieron las normas de la American Society of Hand Therapists. La concordancia entre las medidas fue mediante el método de Bland-Altman. Nivel de significancia del 5%. Resultados: Participaron 41 mujeres (60,63 ± 8,35 años). El análisis entre los dos dinamómetros demostró no haber concordancia (bias = 9,04, p < 0,01), con una relación lineal entre la diferencia de las medidas y la media (r = 0,73, p < 0,01), los límites de concordancia fueron muy extensos (-2,74 a 20,81). Conclusión: Como la artritis reumatoide compromete las manos con consecuente disminución de la FPP, es importante explorar mejor este tema para definir la mejor medida para la práctica clínica en los diferentes niveles de atención a la salud. Sin embargo, debido al gran número de dinamómetros, se sugiere nuevos estudios sobre la concordancia de estas medidas en poblaciones de diferentes condiciones.

Limitations of VEINES QOL/SYM for discriminating chronic venous insufficiency severity.

BACKGROUND: The Venous Insufficiency Epidemiological and Economic Study - Quality of Life/Symptoms (VEINES-QOL / Sym) questionnaire was developed to evaluate the quality of life of individuals with chronic venous insufficiency (CVI), but it has shown limited sensitivity for discriminating between people with different of disease severity. OBJECTIVES: a) to propose a new formula for calculating the VEINES-QOL/Sym score and to evaluate whether this new score is capable of discriminating disease severity; and b) to evaluate the association between VEINES-QOL/Sym scores and disease severity. METHODS: Ninety-eight participants with CVI of both sexes, aged 60.73 ± 14.11 years, answered the Portuguese Brazilian version of the VEINES-QOL/Sym questionnaire. The new score was calculated by transforming the original scores to a 0 to 100 scale. Discriminant analysis was used to test the capability of the original and modified VEINES-QOL/Sym scores to discriminate between and correctly classify groups characterized by the clinical, etiological, anatomical and pathophysiological classification (CEAP). Alpha of 5% was defined as the cutoff for significance. RESULTS: There were no significant differences between CEAP groups in terms of the original or modified VEINES-QOL/Sym scores. Discriminant analysis was also unable to correctly classify CEAP groups, using either original or modified scores. Furthermore, there were no associations between CEAP classifications and scores obtained using the questionnaire. CONCLUSIONS: The VEINES-QOL/Sym proved to have limitations for assessment of the quality of life and symptomatology of people with CVI at different stages.

Força de preensão palmar e desempenho funcional em mulheres de meia-idade e idosas com artrite reumatoide / Fuerza de prensión manual y rendimiento funcional en mujeres de mediana edad y ancianas con artritis reumatoide / Handgrip strength and functional performance in middle-aged and older women with rheumatoid arthritis

RESUMO A força de preensão palmar em mulheres com artrite reumatoide pode estar comprometida devido à presença de deformidades e restrições funcionais impostas pela doença. Existem poucas informações na literatura sobre a diferença de força de preensão e funcionalidade em mulheres adultas e idosas com artrite reumatoide. O objetivo foi comparar a força de preensão palmar, capacidade funcional, e fadiga entre mulheres adultas (meia idade) e idosas com artrite reumatoide e verificar a associação destas variáveis nas duas faixas etárias. Participaram mulheres com artrite reumatoide, acima de 45 anos, com marcha independente, divididas em grupo de adultas (45 a 59 anos) e idosas (60 anos e mais). Foram mensuradas a força de preensão palmar (dinamômetro Jamar®), capacidade funcional (velocidade de marcha) e fadiga (Functional Assessment of Chronic Illness Therapy); feitas comparações entre grupos de idade pelo teste t-Student independente, e associação entre as variáveis, em cada grupo, pelo teste de correlação de Pearson. Foi verificado nível de significância de 5% e a força de preensão palmar foi maior no grupo de idosas (p=0,01). No grupo de adultas, houve associação entre capacidade funcional e fadiga (r=0,53; p=0,01) e no grupo de idosas, houve associação entre força de preensão palmar e velocidade de marcha (r=0,51; p=0,02). Os resultados demonstraram que as idosas estavam em melhores condições musculares. Parâmetros indicados, como marcadores de desempenho funcional e muscular em idosas demonstraram estar associados, confirmando o uso destes marcadores nesta condição específica.

RESUMEN La fuerza de prensión manual en mujeres con artritis reumatoide puede verse comprometida debido a la presencia de deformidades y restricciones funcionales impuestas por la enfermedad. Hay poca información en la literatura sobre la diferencia en la fuerza de agarre y la funcionalidad en mujeres adultas y mayores con artritis reumatoide. El objetivo fue comparar la fuerza de la empuñadura, la capacidad funcional y la fatiga entre mujeres adultas (de mediana edad) y ancianas con artritis reumatoide y verificar la asociación de estas variables en ambos grupos de edad. Participaron mujeres con artritis reumatoide, mayores de 45 años, con marcha independiente, divididas en grupos de adultos (45 a 59 años) y ancianos (60 años y más). Se midieron la fuerza de agarre de la mano (dinamómetro Jamar®), la capacidad funcional (velocidad de marcha) y la fatiga (Evaluación funcional de la terapia de enfermedades crónicas). Se realizaron comparaciones entre grupos de edad mediante la prueba t de Student independiente, y la asociación entre las variables en cada grupo mediante la prueba de correlación de Pearson. Nivel de significancia del 5%. La fuerza de agarre fue mayor en el grupo de ancianos (p=0.01). En el grupo de adultos, hubo una asociación entre la capacidad funcional y la fatiga (r=0.53; p=0.01), y en el grupo de ancianos, hubo una asociación entre la fuerza de prensión y la velocidad de la marcha (r=0.51; p=0.02). Los resultados mostraron que las mujeres mayores estaban en mejor condición muscular. Los parámetros indicados como marcadores de rendimiento funcional y muscular en mujeres de edad avanzada se asociaron, lo que confirma el uso de estos marcadores en esta condición específica.

ABSTRACT The handgrip strength in women with rheumatoid arthritis may be compromised, considering the presence of deformities and functional restrictions imposed by the disease. There is insufficient information on the difference in handgrip strength and functionality among middle-aged and older women with rheumatoid arthritis. The aim was to compare handgrip strength, functional capacity and fatigue among middle-aged and older women with rheumatoid arthritis and to verify the association of these variables in the different age groups. Women with rheumatoid arthritis, older than 45 years, with independent gait, were divided into groups of middle-aged (45-59 years) and older women (60 years and over). Handgrip strength (Jamar® dynamometer), functional capacity (gait speed) and fatigue (Functional Assessment of Chronic Illness Therapy) were measured. Statistical comparisons were made between groups by the independent Student's t-test and the association between variables in each group by Pearson's correlation test. The significance level considered was 5%. There was a significant difference in handgrip strength between groups (p=0.01). In the adult group, there was an association between functional capacity and fatigue (r=0.53, p=0.01) and in the elderly women group, there was an association between handgrip strength and gait speed (r=0.51, p=0.02). The results showed that the older women were in better muscle conditions. Parameters indicated as markers of functional and muscle performance in elderly women were shown to be associated, confirming the use of these markers in this specific condition.

Effects of modified aerobic training on muscle metabolism in individuals with peripheral arterial disease: a randomized clinical trial.

The primary objective of this study was to compare the effects on muscle metabolism of two types of aerobic training, with and without a load on the lower limbs, in adults with peripheral arterial disease (PAD). A simple blind randomized clinical trial was conducted using two groups: conventional aerobic (CG) and modified aerobic with a load on the lower limbs (MG). Both groups underwent training by walking three times a week over a 12-week period. The ratings of muscle metabolism were determined after a treadmill test with constant velocity and inclination concomitant with the use of near infrared spectroscopy (NIRS). Altogether 40 individuals with PAD (CG = 65.45 ± 10.60 and MG = 63.10 ± 10.54) were included in the study. After the intervention, in both groups, there was a reduction in the relative time to recovery (p = 0.002), an improvement in the re-oxygenation rate (p = 0.017), an increased time of resistance after reaching the lowest muscle oxygen saturation (StO2) (p < 0.001), an increase in the distance walked (p < 0.001), and an improvement of the walking economy relative to StO2 (p < 0.001). After 12 weeks of training, an improvement in the deoxygenation rate was observed in both groups (p = 0.002), but with a greater magnitude in the CG (p = 0.017). Only the CG presented an increase in time to reach the lowest StO2 on the treadmill after the intervention (p = 0.010). The traditional aerobic training was superior to the modified training in relation to the improvement of muscle metabolism in patients with PAD.

Google fit smartphone application or Gt3X Actigraph: Which is better for detecting the stepping activity of individuals with stroke? A validity study.

OBJECTIVE: To examine the validity of the GT3X® ActiGraph accelerometer and the Google Fit® smartphone application in estimating stepping activity in people with chronic stroke. METHODS: Thirty-seven stroke survivors walked along a straight, 10 metre hallway over 5 min at their fastest speeds, wearing the GT3X® ActiGraph accelerometer and a smartphone on their paretic lower limb. The criterion-standard measurement made was the actual number of steps, counted by a trained examiner. RESULTS: The mean estimated steps measured by the GT3X® ActiGraph and Google Fit® respectively were 276.7 ±â€¯97.6 and 481.0 ±â€¯119.8; that calculated from the examiner's measurements was 472.0 ±â€¯93.9. Statistically significant associations were found between the actual steps and those estimated by the GT3X® ActiGraph (r = 0.56; p < 0.001) and Google Fit® (r = 0.89; p < 0.001). The Google Fit® application demonstrated the highest reliability coefficient (ICC[2,1] = 0.93; p < 0.001; p = 0.37), compared to that of the GT3X® ActiGraph (ICC[2,1] = 0.32; p < 0.001; p < 0.001). CONCLUSIONS: The GT3X® ActiGraph underestimated the data and may not be the most appropriate device to estimate the stepping activity of stroke patients. The findings support the validity of a smartphone application in estimating the stepping activity of individuals with stroke, when worn on the paretic side.

Prediction equation for the mini-mental state examination: influence of education, age, and sex / Equação de predição para o miniexame do estado mental: influência da educação, idade e sexo / Ecuación de predicción para el mini-examen del estado mental: influencia de la educación, edad y sexo

ABSTRACT The mini-mental state examination (MMSE) is a screening test used worldwide for identifying changes in the scope of cognition. Studies have shown the influence of education, age and sex in the MMSE score. However, in Brazil, the studies consider only one factor to score it. The aim of this study was to establish a prediction equation for the MMSE. An exploratory cross-sectional study was developed and trained researchers examined participants at the community. The volunteers were evaluated by the MMSE and also by the Geriatric Depression Scale (GDS). The MMSE score was the dependent variable. Age, educational level, sex, and GDS score were the independent variables. Multivariate regression analysis was used to determine the model of best prediction value for MMSE scores. A total of 250 participants aged 20-99 years, without cognitive impairment, were assessed. The educational level, age, and sex explained 38% of the total variance of the MMSE score (p<0.0001) and resulted in the following equation: MMSE=23.350+0.265(years of schooling)-0.042(age)+1.323(sex), in which female=1 and male=2. The MMSE scores can be better explained and predicted when educational level, age, and sex are considered. These results enhance the knowledge regarding the variables that influence the MMSE score, as well as provide a way to consider all of them in the test score, providing a better screening of these patients.

RESUMO O mini-exame do estado mental (MEEM) é um teste de rastreio mundialmente utilizado para identificar alterações no âmbito da cognição. Estudos têm demonstrado a influência da educação, idade e gênero na pontuação do MEEM. No entanto, no Brasil, os estudos consideram apenas um fator para a pontuação no teste. O objetivo do estudo foi estabelecer uma equação preditiva para o MEEM. Um estudo transversal exploratório foi desenvolvido e examinadores treinados avaliaram participantes da comunidade. Os voluntários foram avaliados pelo MEEM e pela Escala de Depressão Geriátrica (EDG). A pontuação do MEEM foi a variável dependente. A idade, nível educacional, gênero e pontuação na EDG foram as variáveis independentes. A análise de regressão multivariada foi utilizada para determinar o modelo de melhor valor preditivo para os escores do MEEM. Foram avaliados 250 indivíduos entre 20 e 99 anos, sem comprometimento cognitivo. O nível educacional, a idade e o sexo explicaram 38% da variância total da pontuação do MEEM (p<0,0001) e resultaram na equação: MEEM=23,350+0,265(anos de escolaridade)-0,042(idade)+1,323(gênero), em que mulher=1 e homem=2. A pontuação do MEEM pode ser melhor explicada e predita quando o nível educacional, idade e gênero são considerados. Os resultados contribuem para o conhecimento sobre as variáveis que influenciam o escore do MEEM, bem como fornece uma maneira de considerá-las na pontuação do teste, proporcionando uma melhor triagem desses pacientes.

RESUMEN El mini-examen del estado mental (MEEM) es una prueba de rastreo mundialmente utilizada para identificar alteraciones en el ámbito de la cognición. Los estudios han demostrado la influencia de la educación, la edad y el sexo en la puntuación del MEEM. Sin embargo, en Brasil, los estudios consideran sólo un factor para la puntuación en la prueba. El objetivo del estudio fue establecer una ecuación predictiva para el MEEM. Un estudio transversal exploratorio fue desarrollado y examinadores entrenados evaluaron a participantes de la comunidad. Los participantes fueron evaluados por el MEEM y la Escala de Depresión Geriátrica (EDG). La puntuación del MEEM fue la variable dependiente. La edad, nivel educativo, sexo y puntuación en la EDG fueron las variables independientes. El análisis de regresión multivariada fue utilizado para determinar el modelo de mejor valor predictivo para los escores del MEEM. Se evaluaron 250 individuos entre 20 y 99 años, sin comprometimiento cognitivo. El nivel educativo, la edad y el sexo explicaron el 38% de la varianza total de la puntuación del MEEM (p <0,0001) y resultaron en la ecuación: MEEM=23,350+0,265(años de escolaridad)-0,042 (edad)+1,323 (sexo), en que mujer = 1 y hombre = 2. La puntuación del MEEM puede ser mejor explicada y predecible cuando se considera el nivel educativo, la edad y el sexo. Los resultados contribuyen para el conocimiento sobre las variables que influencian el score del MEEM, así como proporciona una manera de considerar las variables en la puntuación de la prueba, proporcionando una mejor forma de triar a estos pacientes.

Reference values for the six-minute pegboard and ring test in healthy adults in Brazil.

OBJECTIVE: To determine reference values for the six-minute pegboard and ring test (6PBRT) in healthy adults in Brazil, correlating the results with arm length, circumference of the upper arm/forearm of the dominant arm, and the level of physical activity. METHODS: The participants (all volunteers) performed two 6PBRTs, 30 min apart. They were instructed to move as many rings as possible in six minutes. The best test result was selected for data analysis. RESULTS: The sample comprised 104 individuals, all over 30 years of age. Reference values were reported by age bracket. We found that age correlated with 6PBRT results. The number of rings moved was higher in the 30- to 39-year age group than in the > 80-year age group (430.25 ± 77.00 vs. 265.00 ± 65.75), and the difference was significant (p < 0.05). The 6PBRT results showed a weak, positive correlation with the level of physical activity (r = 0.358; p < 0.05) but did not correlate significantly with any other variable studied. CONCLUSIONS: In this study, we were able to determine reference values for the 6PBRT in healthy adults in Brazil. There was a correlation between 6PBRT results and age.

Reference values for the six-minute pegboard and ring test in healthy adults in Brazil / Valores de referência para o teste de argolas de seis minutos em adultos saudáveis no Brasil

ABSTRACT Objective: To determine reference values for the six-minute pegboard and ring test (6PBRT) in healthy adults in Brazil, correlating the results with arm length, circumference of the upper arm/forearm of the dominant arm, and the level of physical activity. Methods: The participants (all volunteers) performed two 6PBRTs, 30 min apart. They were instructed to move as many rings as possible in six minutes. The best test result was selected for data analysis. Results: The sample comprised 104 individuals, all over 30 years of age. Reference values were reported by age bracket. We found that age correlated with 6PBRT results. The number of rings moved was higher in the 30- to 39-year age group than in the > 80-year age group (430.25 ± 77.00 vs. 265.00 ± 65.75), and the difference was significant (p < 0.05). The 6PBRT results showed a weak, positive correlation with the level of physical activity (r = 0.358; p < 0.05) but did not correlate significantly with any other variable studied. Conclusions: In this study, we were able to determine reference values for the 6PBRT in healthy adults in Brazil. There was a correlation between 6PBRT results and age.

RESUMO Objetivo: Determinar valores de referência para o teste de argolas de seis minutos (TA6) em uma amostra de adultos jovens e idosos saudáveis no Brasil e associar os resultados do teste com o comprimento de membros superiores, circunferências de braço e antebraço dominantes e nível de atividade física. Métodos: O TA6 foi realizado duas vezes, com intervalo de 30 min entre os testes. Os voluntários foram instruídos a mover tantas argolas quanto possíveis em seis minutos. O melhor resultado do teste foi escolhido para análise de dados. Resultados: Participaram do estudo 104 indivíduos com idades de 30-80 anos. Os valores de referência foram reportados por faixa etária. Foi observado que a idade se correlacionou com os valores obtidos no TA6. Indivíduos da faixa etária mais jovem (30-39 anos), quando comparados à faixa etária mais idosa (> 80 anos) apresentaram significativamente um maior desempenho (430,25 ± 77,00 vs. 265,00 ± 65,75; p < 0,05). O TA6 apresentou uma correlação fraca e positiva com o nível de atividade física (r = 0,358; p < 0,05), mas não com as outras variáveis analisadas. Conclusões: Este estudo foi capaz de originar valores de referência para o TA6 em uma amostra de adultos jovens e idosos saudáveis no Brasil. Houve uma correlação dos valores obtidos no TA6 com a idade.

Replacement of the 6-Min Walk Test With Glittre ADL Test and Scores From the PFSDQ-M and HAP Questionnaires in the BODE Index.

PURPOSE: Chronic obstructive pulmonary disease reduces functional capacity, which is strongly correlated with the morbidity and mortality of patients. The BODE index considers the multifactorial nature of the disease, including the functional capacity measured by the 6-min walk test (6MWT), and this index predicts the mortality in patients with chronic obstructive pulmonary disease. Our aim was to assess whether association exists between the original BODE index and the modified BODE index by replacing the 6MWT with the scores from the Pulmonary Functional Status and Dyspnea Questionnaire-Modified version (PFSDQ-M), Human Activity Profile (HAP) questionnaire, and the results of the Glittre ADL Test (TGlittre). METHODS: Twenty-eight subjects diagnosed with chronic obstructive pulmonary disease underwent the 6MWT and TGlittre and responded to the PFSDQ-M and HAP questionnaires. Four BODE index scores were obtained: 1 calculated by using the original method (ie, using the 6MWT) and 3 others calculated by using the results obtained from the TGlittre, PFSDQ-M, and HAP (the modified BODE index scores). RESULTS: High levels of association were observed between the original BODE index and the BODE TGlittre (R = 0.824, P ≤ .0001), BODE PFSDQ-M (R = 0.803, P ≤ .0001), and BODE HAP (R = 0.500, P ≤ .0001). CONCLUSION: The BODE TGlittre, and BODE PFSDQ-M may be used as alternatives to the 6MWT when physical space is not available to perform the 6MWT or when the condition of a patient does not allow performance of the 6MWT.

Test-retest reliability of the unsupported upper-limb exercise test (UULEX) and 6-min peg board ring test (6PBRT) in healthy adult individuals.

BACKGROUND: The unsupported upper-limb exercise (UULEX) and 6-min peg board ring tests (6PBRTs) have been developed to measure peak unsupported arm exercise capacity and arm endurance, respectively, in individuals with chronic obstructive pulmonary disease. These tests are valid and reproducible in this population; however, the reproducibility of healthy adults is currently unknown. OBJECTIVE: To determine the within-day test-retest reliability of the UULEX and 6PBRT in healthy adults. METHOD: The study included 41 healthy adults, aged 38.3 ± 17.9 years old, who performed both tests, twice each on the same day, with a 30-min rest in between. Before and immediately after the tests, blood pressure (BP), heart rate (HR), perception of exertion, and arm fatigue were measured. Time to perform the test and number of rings moved were recorded for the UULEX and 6PBRT, respectively. RESULTS: The UULEX was reproducible on Bland-Altman analysis with lower and upper limits of agreement: 2.40 and -2.49 min, respectively (bias = -0.05; p = 0.817) and intraclass correlation coefficient (ICC) = 0.85 (p < 0.0001) for time in minutes for the first and second tests. The 6PBRT was not reproducible on Bland-Altman analysis with lower and upper limits of agreement of 31.64 and -114.54 (bias = -41.45; p < 0.0001) and ICC = 0.91 (p < 0.0001) for the number of rings moved. CONCLUSION: UULEX is a reliable test in healthy adults. Only one test is adequate when measuring peak unsupported arm exercise capacity using the UULEX in healthy adults, while more than two tests may be needed to measure arm endurance using the 6PBRT.