Cutoff points of adiposity anthropometric indices for low muscle mass screening in middle-aged and older healthy women.

BACKGROUND: The reduction of female sex hormones causes changes in the contractile properties of muscles as well as infiltration of fat in the muscle tissue. This results in a consequent decline in muscle strength. These changes are related to higher levels of functional impairment and physical disability. In this sense, several anthropometric indices have been used to quantify body and visceral fat. Thus, the objective of this paper is to propose cutoff points for adiposity anthropometric indices in order to identify low muscle mass, as well as to analyze the relationship between these indices and low muscle mass in middle-aged and older women. METHODS: Cross-sectional analytical study carried out in the Northeast of Brazil. The sample was formed by 593 women between 40-80 years old. Data collection included anthropometric assessment (BMI: Body Mass Index - WC: Waist Circumference - WHR: Waist-to-hip Ratio - WHtR: Waist-to-height Ratio - CI: Conicity Index - BAI: Body Adiposity Index - VAI: Visceral Adiposity Index - LAP: Lipid Accumulation Product), bioimpedance test and biochemical dosage. Moreover, sociodemographic data and practice of physical activity were collected. Descriptive statistics, Student's t-test, ROC curves, chi-squared and logistic regression were performed. RESULTS: The participants had a mean age of 53.11 (8.89) years, BMI of 28.49 (5.17) kg/m2 and WC of 95.35 (10.39). The prevalence of low muscle mass was 19.4%. Based on sensitivity and specificity of adiposity anthropometric indices, cutoff points were developed to identify the presence of low muscle mass (p < 0.05), except for VAI. After logistic regression, WC (OR = 6.2; CI 95%: 1.4-28.1), WHR (OR = 1.8; CI: 1.0-3.4), WHtR (OR = 5.0; CI 95%: 1.0-23.7) and BAI (OR = 14.5; CI 95%: 6.6-31.7) were associated with low muscle mass. CONCLUSIONS: All anthropometric indices, except VAI, showed adequate accuracy in identifying low muscle mass in women, especially those that took into account WC. This suggests that they can become accessible and also be cost-effective strategies for assessing and managing health outcomes related to muscle mass analysis.

Symptoms of urinary incontinence and pelvic organ prolapse and physical performance in middle-aged women from Northeast Brazil: a cross-sectional study.

BACKGROUND: Reproductive history and urogynecological disorders have been associated with limitations in physical function. However, little is known about the relationship between symptoms of urinary incontinence and pelvic organ prolapse, and physical performance. Therefore, the purpose of this study was to examine whether symptoms of urinary incontinence and pelvic organ prolapse are independently associated factors with indicators of lower physical performance in middle-aged women from Northeast Brazil. METHODS: This is a cross-sectional study of 381 women between 40 to 65 years old living in Parnamirim, Northeast Brazil. Physical performance was assessed by gait speed, chair stand and standing balance tests. Urinary incontinence and pelvic organ prolapse were self-reported. Multiple linear regression analyses were performed to model the effect of self-reported urinary incontinence and pelvic organ prolapse on each physical performance measure, adjusted for covariates (age, family income, education, body mass index, parity). RESULTS: In the analysis adjusted for confounders, women reporting urinary incontinence spent, on average, half a second longer to perform the chair stand test (ß = 0.505 95% CI: 0.034: 0.976). Those reporting pelvic organ prolapse shortened the balance time with eyes open by 2.5 s on average (ß = - 2.556; CI: - 4.769: - 0.343). CONCLUSIONS: Symptoms of pelvic organ prolapse and urinary incontinence are associated to worse physical performance in middle-aged women. These seemingly small changes in physical performance levels are of clinical importance, since these conditions may influence women's physical ability, with implications for other tasks important to daily functioning and should be addressed by health policies targeting women's health and functionality.

Early maternal age and multiparity are associated to poor physical performance in middle-aged women from Northeast Brazil: a cross-sectional community based study.

BACKGROUND: Adolescent childbirth and elevated parity are relatively common in middle and low-income countries and they may be related to the higher prevalence and earlier onset of physical decline documented in these settings, especially in women. The aim of this paper is to investigate whether reproductive history is associated with physical function in middle-aged women from Northeast Brazil. METHODS: The relationship between poor physical performance (grip strength, gait speed and chair stand), early maternal age at first birth (<18 years old), and multiparity (≥ 3 children) was evaluated in a community sample of 473 women living in Parnamirim (Northeast Brazil). Linear regression models were used to examine the relationship of interest; in addition, mediation analyses were employed to assess indirect effects of obesity and family income. RESULTS: Women who gave birth at less than 18 years of age took approximately 0.50 s longer to complete the chair stand test compared to women who gave birth at 18 years or older. Moreover, women who gave birth to < 3 children completed the chair stand test 0.42 s faster compared to those who had ≥ 3 children. The relation between reproductive history and physical performance was mediated by BMI. Reproductive history was not associated with performance in gait speed. CONCLUSIONS: This study provides evidence that adolescent childbirth and multiparity are related to worse physical performance in middle-aged women from a low income setting. Reproductive history may partially account for earlier physical decline and greater disability in women from lower income settings.

Dissatisfaction with body image and weight gain in middle-aged women: A cross sectional study.

OBJECTIVES: To investigate the relationship between weight gain and body image perception in in middle-aged women. METHODS: Cross-sectional study with 453 women. Body image was assessed using the Stunkard scale, in which women were classified as: satisfied or dissatisfied (general, thinness or obesity). The identification of possible factors associated with body image dissatisfaction was performed using binary logistic regression analysis. RESULTS: The mean age was 55.7 (±9.6) years; 80.8% were classified as dissatisfied with body image. As for body composition, women satisfied with their body image had lower values of body fat and higher values of lean mass. In the logistic regression, for general dissatisfaction and obesity, the associated variables were BMI, education and physical activity. As for "dissatisfaction with thinness", only BMI was associated. CONCLUSION: Thus, the prevalence of body image dissatisfaction is high in women and part of associated factors are linked to lifestyle behaviors.

Diagnostic Accuracy of the Short Physical Performance Battery in Detecting Frailty and Prefrailty in Community-Dwelling Older Adults: Results From the PRO-EVA Study.

BACKGROUND AND PURPOSE: The Short Physical Performance Battery (SPPB) is widely used for older adults since it has a high level of validity, reliability, and responsiveness in measuring function in this population. However, only a few studies of diagnostic accuracy have assessed SPPB capacity in detecting frailty and prefrailty by estimating more detailed measurement properties. Thus, the present study aimed to evaluate the SPPB's diagnostic accuracy in detecting frailty and prefrailty, in addition to identifying cut-off points for walking time and chair stand time. METHODS: This is a cross-sectional study composed of 786 community-dwelling older adults 60 years or older, in which sociodemographic and anthropometric data, frailty phenotype, and total SPPB score, as well as walking time and chair stand time, were assessed. Analysis of a receiver operating characteristic curve was performed to identify the cut-off point, sensitivity, and specificity in the total SPPB score, as well as the walking time and chair stand time for frailty and prefrailty screening. Accuracy and positive and negative predictive values were subsequently calculated. RESULTS AND DISCUSSION: The cut-off points identified for the total SPPB score, walking time, and chair stand time were 9 points or less (accuracy of 72.6%), 5 seconds or less, and 13 seconds or less, respectively, for frailty screening and 11 points or less (accuracy of 58.7%), 4 seconds or less, and 10 seconds or less, respectively, for prefrailty screening. The walking time showed greater frailty discriminatory capacity compared with the chair stand time (effect size = 1.24 vs 0.64; sensitivity = 69% vs 59%; and specificity = 84% vs 75%). CONCLUSIONS: The total SPPB score has good diagnostic accuracy to discriminate between nonfrail and frail older adults using a cut-off point of 9 or less, being better to identify the true negatives (older adults who are not frail). Although the SPPB's diagnostic accuracy measures for detecting prefrailty were low to moderate, this instrument can help in screening prefrail older adults from the cutoff point of 11 or less in the total SPPB score. Identification of prefrail older adults enables implementing early treatment in this target audience and can prevent their advance to frailty.

Exploring the relationships between anthropometric indices of adiposity and physical performance in middle-aged and older Brazilian women: a canonical correlation analysis.

OBJECTIVES: This study analyzed the influence of anthropometric indices of adiposity on the physical performance of middle-aged and older women. METHODS: A cross-sectional study was conducted among 368 women from 50 years to 80 years old. Anthropometric and biochemical characteristics were analyzed, and physical performance was evaluated. The statistical analysis used measures of central tendency and dispersion for descriptive data, Pearson correlations to demonstrate the initial associations between the variables, and canonical correlation (CC) to evaluate the relationship between the set of anthropometric adiposity indices and performance-related variables. RESULTS: The participants had a mean age of 58.57±8.21 years, a visceral adiposity index of 7.09±4.23, a body mass index of 29.20±4.94 kg/m2, and a conicity index of 1.33±0.07. The average handgrip strength was 25.06±4.89 kgf, gait speed was 1.07±0.23 m/s, and the mean Short Physical Performance Battery (SPPB) score was 10.83±1.36. The first canonical function presented the highest shared variance, CC, and redundancy index (cumulative percentage of variance, 82.52; Wilks' lambda, 0.66; CC, 0.532; p<0.001). From the analysis of this canonical function, the conicity index (-0.59) displayed inverse correlations with handgrip strength (0.84) and the SPPB (0.68), as well as a direct correlation with gait speed (-0.43). CONCLUSIONS: In middle-aged and older women, there was an inverse relationship between the conicity index and muscle strength and power, while a direct relationship was found between the same index and gait speed.

Does body image perception relate to quality of life in middle-aged women?

OBJECTIVE: In Brazil, information about the influence of body image on the various life domains of women in menopausal transition is scarce. Thus, the objective of the study was to analyze the relationship between body image and quality of life in middle-aged Brazilian women. METHODS: This was a cross-sectional study of 250 women between 40 and 65 years old, living in Parnamirim/RN, Brazil, who were evaluated in relation to body image and quality of life. For body image, women were classified as: dissatisfied due to low weight, satisfied (with their body weight) and dissatisfied due to being overweight. Quality of life was assessed through a questionnaire in which higher values indicate higher quality of life. Multiple linear regression was performed to analyze the relationship between body image and quality of life, adjusted for covariates that presented p<0.20 in the bivariate analysis. RESULTS: The average age was 52.1 (± 5.6) years, 82% of the women reported being dissatisfied due to being overweight, and 4.4% were dissatisfied due to having low weight. After multiple linear regression analyzes, body image remained associated with health (p<0.001), emotional (p = 0.016), and sexual (p = 0.048) domains of quality of life, as well as total score of the questionnaire (p<0.001). CONCLUSION: Women who reported being dissatisfied with their body image due to having low weight or overweight had worse quality of life in comparison to those who were satisfied (with their body weight).

Correlation of Menopausal Symptoms and Quality of Life with Physical Performance in Middle-Aged Women.

Introduction Some studies have investigated the influence of hormonal deficits and menopausal status in muscle disorders of women. However, it has not been investigated the relationship of both climacteric symptoms and the perception of quality of life with physical performance. Objective To evaluate the correlation of menopausal symptoms and quality of life with physical performance in middle-aged women. Methods This cross-sectional study was performed from April to November 2013 in the municipality of Parnamirim, in the Brazilian state, Rio Grande do Norte. The sample was composed of 497 women aged 40-65 years. The Menopause Rating Scale (MRS) and the Utian Quality of Life (UQOL) questionnaire were used to evaluate menopausal symptoms and quality of life respectively. Measures of physical performance included handgrip strength, knee extensor and flexor strengths (using an isometric dynamometer), gait speed, and chair stand test. The correlation between menopausal symptoms and quality of life with physical performance was assessed by Pearson's correlation coefficient with significance set at p < 0.05 and a confidence interval of 95%. Results There was a significant negative correlation between handgrip strength and somatic MRS score (p = 0.002) and total MRS score (p = 0.03). There was a significant correlation between knee flexor strength and sit-to-stand time and all menopausal symptom areas (p < 0.05), except psychological symptoms. There was a positive correlation between physical performance of the knee flexors and quality of life items including occupational (p = 0.001), emotional (p = 0.005), and total UQOL (p = 0.01), but a negative correlation with sit-to-stand time and all quality of life domains (p < 0.05). Conclusion A greater intensity of menopausal symptoms and worse quality of life were related with worse physical performance. Thus, preventive measures should be implemented to avoid adverse effects on physical performance at more advanced ages.

Capacidade de avaliação de testes de desempenho físico para identificar baixa massa muscular em mulheres de meia-idade e idosas / Ability to evaluate physical performance tests to identify low muscle mass in middle-aged and older women

Resumo Objetivo Verificar a capacidade de avaliação de testes de desempenho físico na identificação da baixa massa muscular (MM) em mulheres de meia-idade e idosas. Método Estudo transversal realizado com 540 mulheres de meia-idade (40-59 anos) e idosas (≥60 anos), nos municípios de Parnamirim e Santa Cruz, no Rio Grande do Norte, Brasil. Foram avaliadas MM, força de preensão palmar, extensão de joelho e velocidade da marcha. A baixa MM foi definida pelo índice de massa muscular esquelética menor que os 20% mais baixos para cada grupo de idade. Foram utilizados os testes: t de Student, qui-quadrado, análise de curva ROC para calcular a área sob a curva e ponto de corte de cada teste na discriminação das participantes com baixa MM. Foi considerado p<0,05 e IC de 95%. Resultados Para o grupo de meia-idade, as forças de preensão palmar e de extensão do joelho apresentaram sensibilidade (71,6% e 72,5%, respectivamente) e especificidade (59,4% e 56,0%, respectivamente) moderadas na identificação de baixa MM. Para as idosas, a velocidade da marcha e a força de preensão manual apresentaram boa sensibilidade (77,8% e 81,6%, respectivamente) e especificidade moderada (51,4% e 64,5%, respectivamente). A capacidade discriminatória da velocidade da marcha para as mulheres de meia-idade e da força de extensão do joelho para as mulheres idosas foi insatisfatória. Conclusão As medidas de força muscular são úteis para a triagem de baixa MM em mulheres de meia-idade, enquanto os testes de força de preensão manual e velocidade de marcha são úteis para idosas.

Abstract Objective To verify the ability to evaluate physical performance tests in the identification of low muscle mass (MM) in middle-aged and old women. Method This cross-sectional study was carried out with 540 middle-aged (40-59 years old) and old women (≥60 years old) in the municipalities of Parnamirim and Santa Cruz in the state of Rio Grande do Norte, Brazil. MM, handgrip strength, knee extension, and gait speed were evaluated. Low MM was defined by skeletal muscle mass index lower than the lower 20% for each age group. The following tests were used: Student's t, chi-square, ROC curve analysis to calculate the area under the curve, and cutoff point of each test in the discrimination of participants with low MM. P<0.05 and CI of 95% were considered. Results For the middle-aged group, the handgrip and knee extension strength showed moderate sensitivity (71.6% and 72.5%, respectively) and specificity (59.4% and 56.0%, respectively) in the identification of low MM. For the old women, gait speed and handgrip strength showed good sensitivity (77.8% and 81.6%, respectively) and moderate specificity (51.4% and 64.5%, respectively). The discriminatory capacity of gait speed for middle-aged women and knee extension strength for old women were unsatisfactory. Conclusion Muscle strength measurements are useful for low MM screening in middle-aged women, while handgrip strength and gait speed tests are useful for older women.

Relationship between strength and muscle mass in middle-aged and elderly women: a cross-sectional study / Relação entre força e massa muscular em mulheres de meia-idade e idosas: um estudo transversal

Abstract Objective: to analyze the relationship between handgrip strength and lower limb strength and the amount of segmental skeletal muscle mass in middle-aged and elderly women. Methods: an observational, cross-sectional, observational study of 540 women aged between 40 and 80 years in the cities of Parnamirim and Santa Cruz, Rio Grande do Norte, was performed. Sociodemographic data, anthropometric measurements, handgrip dynamometry, knee flexors and extensors of the dominant limbs, as well as the segmental muscle mass of the limbs were evaluated. Data were analyzed using Student's t-Test, Chi-square test, Effect Size and Pearson's Correlation (CI 95%). Results: there were statistically significant weak and moderate correlations between handgrip strength and upper limb muscle mass, knee flexion strength and lower limb muscle mass, and between knee extension strength and lower limb muscle mass for the age groups 40-59 years and 60 years or more (p<0.05). Conclusions: muscle strength correlates with skeletal muscle mass. It could therefore be an indicator of the decrease in strength. It is not the only such indicator, however, as correlations were weak and moderate, which suggests the need for more studies on this theme to elucidate which components may also influence the loss of strength with aging. AU

Resumo Objetivo: Analisar a relação entre a força de preensão manual e a força de membro inferior com a quantidade de massa muscular esquelética segmentar em mulheres de meia-idade e idosas. Métodos: Trata-se de um estudo observacional analítico de caráter transversal, realizado com 540 mulheres entre 40 e 80 anos, nos municípios de Parnamirim e Santa Cruz, no estado do Rio Grande do Norte. Foram avaliados dados sociodemográficos, medidas antropométricas, dinamometria de preensão manual, flexores e extensores de joelho dos membros dominantes, além da massa muscular segmentar dos respectivos membros. Os dados foram analisados utilizando o Test t de Student, o Teste de qui-quadrado, o Tamanho do Efeito e a Correlação de Pearson (IC 95%). Resultados: Houve correlações estatisticamente significativas fracas e moderadas entre força de preensão e massa muscular de membro superior, força de flexão de joelho e massa muscular de membro inferior e entre força de extensão e massa muscular de membro inferior para as faixas etárias de 40 a 59 anos e 60 anos ou mais (p<0,05). Conclusões: A força muscular se correlaciona com a massa muscular esquelética. Desta forma, a mesma pode ser um indicador da diminuição da força, mas não o único, haja vista as correlações apresentarem-se de forma fraca e moderada, o que requer mais estudos sobre essa temática para elucidar quais os componentes que podem também influenciar na perda da força com o avançar da idade. AU

Correlation of Menopausal Symptoms and Quality of Life with Physical Performance in Middle-Aged Women / Relação entre sintomas climatéricos e qualidade de vida no desempenho físico em mulheres de meia-idade

Abstract Introduction Some studies have investigated the influence of hormonal deficits and menopausal status in muscle disorders of women. However, it has not been investigated the relationship of both climacteric symptoms and the perception of quality of life with physical performance. Objective To evaluate the correlation of menopausal symptoms and quality of life with physical performance in middle-aged women. Methods This cross-sectional study was performed from April to November 2013 in the municipality of Parnamirim, in the Brazilian state, Rio Grande do Norte. The sample was composed of 497 women aged 40-65 years. The Menopause Rating Scale (MRS) and the Utian Quality of Life (UQOL) questionnaire were used to evaluate menopausal symptoms and quality of life respectively. Measures of physical performance included handgrip strength, knee extensor and flexor strengths (using an isometric dynamometer), gait speed, and chair stand test. The correlation between menopausal symptoms and quality of life with physical performance was assessed by Pearson's correlation coefficient with significance set at p< 0.05 and a confidence interval of 95 %. Results There was a significant negative correlation between handgrip strength and somatic MRS score (p= 0.002) and total MRS score (p= 0.03). There was a significant correlation between knee flexor strength and sit-to-stand time and all menopausal symptom areas (p< 0.05), except psychological symptoms. There was a positive correlation between physical performance of the knee flexors and quality of life items including occupational (p= 0.001), emotional (p= 0.005), and total UQOL (p= 0.01) , but a negative correlation with sit-to-stand time and all quality of life domains (p< 0.05). Conclusion A greater intensity of menopausal symptoms and worse quality of life were related with worse physical performance. Thus, preventive measures should be implemented to avoid adverse effects on physical performance at more advanced ages.

Resumo Objetivo Avaliar a relação entre sintomatologia climatérica e qualidade de vida no desempenho físico em mulheres de meia-idade. Métodos Estudo transversal, realizado de abril a novembro de 2013, no município de Parnamirim/RN. A amostra foi composta por 497 mulheres (40 a 65 anos). Menopause Rating Scale (MRS) foi utilizada para a avaliação dos sintomas climatéricos e Utian Quality of Life (UQOL) para a qualidade de vida. Medidas de desempenho físico foram compostas pela força de preensão manual, força de extensores e flexores de joelho (usando um dinamômetro isométrico), velocidade de marcha e tempo de sentarlevantar. A relação da sintomatologia climatérica e qualidade de vida com o desempenho físico foi avaliada pelo teste de correlação de Pearson, sendo considerado um p< 0,05 e intervalo de confiança de 95 %. Resultados Houve correlação significativa negativa da força de preensão quanto ao MRS somático (p= 0,002) e total (p= 0,03). Para força de flexores de joelho e tempo de sentar-levantar, houve correlação significativa para todos os domínios dos sintomas climatéricos (p< 0,05), exceto o psicológico. Entre qualidade de vida e desempenho físico, houve correlação positiva dos flexores de joelho quanto ao UQOL ocupacional (p= 0,001), emocional (p= 0,005) e total (p= 0,01), e negativa para o teste sentarlevantar quanto a todos os domínios (p< 0,05). Conclusão A maior intensidade dos sintomas climatéricos e a pior qualidade de vida apresentaram relação com piores desempenhos. Dessa forma, medidas de prevenção devem ser implementadas a fim de evitar consequências negativas no desempenho físico em idades mais avançadas.