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1.
Schizophr Bull ; 50(3): 615-630, 2024 Apr 30.
Artículo en Inglés | MEDLINE | ID: mdl-38394386

RESUMEN

BACKGROUND AND HYPOTHESIS: Exercise therapy has been shown to be an effective complementary treatment for patients with psychotic disorders. However, the specific impacts of different training modalities remain poorly understood. This article aims to quantitatively review the moderating influence of different exercise modalities, hypothesizing that higher exercise intensity as well as utilization of mindfulness-based exercise (MBE) components, will improve intervention outcomes. STUDY DESIGN: PubMed, Web of Science, and PsycINFO were searched from 2010 to March 2022 for randomized controlled trials investigating exercise interventions in patients with psychotic disorders (preregistration: https://doi.org/10.17605/OSF.IO/J8QNS). Outcomes considered were positive/negative symptoms, Positive and Negative Syndrome Scale (PANSS) General Psychopathology/Total scores, depressive symptoms, psychosocial functioning, quality of life, cardiorespiratory fitness, and body mass index. Separate meta-analyses, including moderator analyses, were performed to evaluate the moderating influence of different training modalities. STUDY RESULTS: Of 6653 studies, 40 (n = 2111 patients) were included in the meta-analysis. The effects of moderate-intensity exercise exceed low-intensity approaches for PANSS Total scores (P = .02) and depressive symptoms (P = .04). The presence of MBE components was associated with improvements in positive symptoms (P = .04) and PANSS General Psychopathology subscores (P = .04) but also with higher error and between-study heterogeneity. Our analysis also shows improved intervention effects on depression in younger patients (P = .012) and improved psychosocial functioning scores following more frequent sessions (P < .01). CONCLUSIONS: A minimum of moderate intensity should be considered. More frequent training sessions per week also seem to be beneficial. While adding mindfulness elements is promising, it increases heterogeneity and requires caution in terms of generalization.


Asunto(s)
Terapia por Ejercicio , Atención Plena , Trastornos Psicóticos , Humanos , Atención Plena/métodos , Trastornos Psicóticos/terapia , Trastornos Psicóticos/rehabilitación , Trastornos Psicóticos/fisiopatología , Terapia por Ejercicio/métodos , Evaluación de Resultado en la Atención de Salud , Capacidad Cardiovascular/fisiología
2.
J Bodyw Mov Ther ; 33: 164-170, 2023 01.
Artículo en Inglés | MEDLINE | ID: mdl-36775514

RESUMEN

INTRODUCTION: The main causes of amputation include vascular diseases, trauma, cancer, and congenital limb abnormalities. The person with transtibial amputation (TA) is affected by a greater cardiorespiratory, metabolic, and muscular load to walk and perform daily activities. The sedentary lifestyle contributes to the process of chronic non-communicable diseases. The purpose of the study was to compare the effects of eight-week concurrent training (CT) for dependent variables as muscle strength, cardiorespiratory fitness, agility, and postural balance in persons with unilateral TA. METHODS: A eight-week, randomized, controlled trial. Thirty-one people using prostheses for three or more months were selected. They were randomly divided into two groups: Experimental Group (EG; n = 17) - concurrent training and Control group (CG; n = 14) - no training. All patients were evaluated at the baseline and after eight weeks by the functional performance, isokinetic knee evaluation, static and dynamic posturography and cardiopulmonary test. RESULTS: The patients showed improvements in all measures after training (size effect >0.80). CONCLUSION: The main limitations are the sample size, related to the socioeconomic status and availability training and no comparison to other types of training. Eight weeks of CT was effective and favorably modified the dependent variables in TA patients. Therefore, CT is a good option to improve functional performance after the regular rehabilitation program discharge and decreases the metabolic and functional deficits of these patients.


Asunto(s)
Capacidad Cardiovascular , Terapia por Ejercicio , Humanos , Extremidad Inferior , Fuerza Muscular/fisiología , Capacidad Cardiovascular/fisiología , Amputación Quirúrgica , Equilibrio Postural/fisiología
3.
Nutrients ; 13(10)2021 Oct 11.
Artículo en Inglés | MEDLINE | ID: mdl-34684557

RESUMEN

The main aim of this study was to evaluate the effects of six days of tri-sodium phosphate (SP) supplementation on the cardiorespiratory system and gross efficiency (GE) during exercise under hypoxia in cyclists. Twenty trained male cyclists received SP (50 mg·kg-1 of fat-free mass/day) or placebo for six days in a randomized, cross-over study, with a three-week washout period between supplementation phases. Before and after each supplementation phase, the subjects performed an incremental exercise test to exhaustion under normobaric hypoxia (FiO2 = 16%, ~2500 m). It was observed that short-term SP supplementation led to a decrease in heart rate, an increase in stroke volume, and an improvement in oxygen pulse (VO2/HR) during low and moderate-intensity exercise under hypoxia. These changes were accompanied by an increase in the serum inorganic phosphate level by 8.7% (p < 0.05). No significant changes were observed in serum calcium levels. GE at a given workload did not change significantly after SP supplementation. These results indicated that SP promotes improvements in the efficiency of the cardiorespiratory system during exercise in a hypoxic environment. Thus, SP supplementation may be beneficial for endurance exercise in hypoxia.


Asunto(s)
Ciclismo/fisiología , Capacidad Cardiovascular/fisiología , Suplementos Dietéticos , Hipoxia/fisiopatología , Fosfatos/farmacología , Adulto , Estudios Cruzados , Método Doble Ciego , Prueba de Esfuerzo , Frecuencia Cardíaca/efectos de los fármacos , Humanos , Hipoxia/terapia , Masculino , Consumo de Oxígeno/efectos de los fármacos , Fosfatos/sangre , Resistencia Física/efectos de los fármacos , Volumen Sistólico/efectos de los fármacos
4.
J Sports Sci Med ; 20(2): 310-316, 2021 06.
Artículo en Inglés | MEDLINE | ID: mdl-34211324

RESUMEN

The present study aimed to propose and assess the physiological responses of a novel graded karate test. Ten male national-level karate athletes (age 26 ± 5 yrs; body mass 69.5 ± 11.6 kg; height 1.70 ± 0.09 m) performed two exercise tests (separated by 2-7 days): 1) a running-based cardiopulmonary exercise test; 2) a graded karate test. The cardiopulmonary exercise test was comprised of an individualized ramp protocol for treadmill running, and the graded karate test was comprised of a sequence of 'kisami-gyaku-zuki" punching at a fixed frequency of a stationary target that becomes progressively distant. Cardiorespiratory responses, blood lactate concentration, and perceived exertion were measured. A verification phase was also performed in both tests to confirm the maximal physiological outcomes. The graded karate test evoked similar maximal responses to the running protocol: V̇O2 (57.4 ± 5.1 vs 58.3 ± 3.5 mL·kg-1·min-1; p = 0.53), heart rate (192 ± 6 vs 193 ± 10]beats.min-1; p = 0.62) and blood lactate (14.6 ± 3.4 vs 13.1 ± 3.0 mmol·L-1; p = 0.14) with a shorter duration (351 ± 71 vs 640 ± 9 s; p < 0.001). Additionally, the graded karate test evoked higher V̇O2 (72.6 ± 6.5 vs 64.4 ± 4.3 %V̇O2MAX; p = 0.005) and heart rate (89.4 ± 4.6 vs 77.3 ± 7.2 %HRMAX p < 0.001) at the ventilatory threshold and a higher heart rate (97.0 ± 2.4 vs 92.9 ± 2.2 %HRMAX; p = 0.02) at the respiratory compensation point. Incremental and verification phases evoked similar responses in V̇O2 and minute-ventilation during both tests. This novel displacement-based sport-specific test evoked similar maximal and higher submaximal responses, indicating a superior pathway to assess karate athletes.


Asunto(s)
Capacidad Cardiovascular/fisiología , Prueba de Esfuerzo/métodos , Artes Marciales/fisiología , Adulto , Umbral Anaerobio , Frecuencia Cardíaca , Humanos , Ácido Láctico/sangre , Masculino , Percepción/fisiología , Esfuerzo Físico/fisiología
5.
Arch Phys Med Rehabil ; 102(12): 2385-2392, 2021 12.
Artículo en Inglés | MEDLINE | ID: mdl-34283994

RESUMEN

OBJECTIVE: To investigate through a pilot study the acute cardiorespiratory responses during functional electrical stimulation (FES) cycling, arm crank ergometry (ACE), and a combination of ACE and FES cycling (hybrid FES cycling) in people with advanced multiple sclerosis (MS) to provide preliminary guidance for effective aerobic exercise prescription. DESIGN: Acute repeated measures. SETTING: Laboratory setting. PARTICIPANTS: Inclusion criteria was a diagnosis of MS, with Expanded Disability Status Scale (EDSS) 6.0-8.5. Included were 9 participants (N=9; 7 female, age 54.7±8.8y, EDSS 7.2±0.7). INTERVENTIONS: Participants were assessed on 3 different exercise modalities (FES cycling, ACE, hybrid FES cycling) at 40%, 60%, 80%, and 100% of mode-specific peak workload. MAIN OUTCOME MEASURES: Oxygen consumption and heart rate were measured at each workload. RESULTS: Hybrid FES cycling evoked a significantly higher oxygen consumption relative to body weight (V̇o2relative) (mL/kg/min) and heart rate (beats per minute [BPM]) at most workloads compared with ACE or FES cycling. At the 100% workload, heart rate for hybrid FES cycling was 125 BPM (range, 113-148 BPM) and was significantly higher than ACE at 99 BPM (range, 95-119 BPM) (P=.008) and FES cycling at 94 BPM (range, 79-100 BPM) (P=.008). Similarly, at the 100% workload, V̇o2relative for hybrid FES cycling was 11.8 mL/kg/min (range, 7.6-17.6 mL/kg/min) and was significantly higher than ACE at 8.9 mL/kg/min (range, 5.3-12.5 mL/kg/min) (P=.012) and FES cycling at 6.8 mL/kg/min (range, 4.1-9.2 mL/kg/min) (P=.012). CONCLUSIONS: This pilot study showed that hybrid FES cycling can elicit a greater cardiorespiratory response than ACE or FES cycling in people with advanced MS. Thus, hybrid FES cycling might provide a potent enough stimulus to induce clinically relevant changes in cardiorespiratory fitness. Training studies are warranted to document the magnitude and sustainability of aerobic capacity adaptations to hybrid FES cycling and associated health outcomes in advanced MS.


Asunto(s)
Capacidad Cardiovascular/fisiología , Terapia por Estimulación Eléctrica/métodos , Terapia por Ejercicio/métodos , Esclerosis Múltiple/terapia , Consumo de Oxígeno/fisiología , Adulto , Anciano , Ciclismo , Terapia Combinada , Ergometría , Prueba de Esfuerzo , Femenino , Humanos , Masculino , Persona de Mediana Edad , Proyectos Piloto
6.
J Int Soc Sports Nutr ; 18(1): 55, 2021 Jul 09.
Artículo en Inglés | MEDLINE | ID: mdl-34243756

RESUMEN

BACKGROUND: Nitrate supplementation is thought to improve performance in endurance sports. OBJECTIVE: To meta-analyze studies evaluating the effect of nitrate supplementation on endurance sports performance among adults. DATA SOURCES: We searched the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, EMBASE, Web of Science and CINAHL without language restrictions. METHODS: We included studies that: 1) compared nitrate supplementation with placebo; 2) enrolled adults engaging in an endurance-based activity; and 3) reported a performance measure or surrogate physiologic outcome. We evaluated risk of bias using the Cochrane Collaboration tool and pooled data with a random-effects model. We used the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach to evaluate confidence in estimates. RESULTS: We included 73 studies (n = 1061). Nitrate supplementation improved power output (MD 4.6 watts, P < 0.0001), time to exhaustion (MD 25.3 s, P < 0.00001), and distance travelled (MD 163.7 m, P = 0.03). We found no significant difference on perceived exertion, time trial performance and work done. Nitrate supplementation decreased VO2 (MD - 0.04 L/min, P < 0.00001) but had no significant effect on VO2max or blood lactate levels. CONCLUSION: The available evidence suggests that dietary nitrate supplementation benefits performance-related outcomes for endurance sports.


Asunto(s)
Rendimiento Atlético/fisiología , Suplementos Dietéticos , Nitratos/administración & dosificación , Resistencia Física/fisiología , Adulto , Atletas , Sesgo , Capacidad Cardiovascular/fisiología , Tolerancia al Ejercicio/fisiología , Humanos , Ácido Láctico/sangre , Consumo de Oxígeno/fisiología , Sesgo de Publicación , Conducta Sedentaria , Factores de Tiempo
7.
Top Spinal Cord Inj Rehabil ; 27(1): 121-134, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33814890

RESUMEN

Background: Physical deconditioning and inactivity following spinal cord injury (SCI) are associated with multiple cardiometabolic risks. To mitigate cardiometabolic risk, exercise is recommended, but it is poorly established whether arm cycling exercise (ACE) or functional electrical stimulation (FES) leg cycling yields superior benefits. Objectives: To determine the adaptations of 16 weeks of FES cycling and ACE on exercise energy expenditure (EEE), cardiorespiratory fitness (CRF), and obesity after SCI. Methods: Thirteen physically untrained individuals were randomly assigned to FES (n = 6) or ACE (n = 7) exercise 5 days/week for 16 weeks. Pre- and post-intervention EEE, peak oxygen consumption (absolute and relative VO2Peak), and work were assessed using indirect calorimetry, while body composition was measured by dual-energy x-ray absorptiometry. Results: Main effects were found for peak power (p < .001), absolute (p = .046) and relative (p = .042) VO2Peak, and peak work (p = .013). Compared to baseline, the ACE group increased in EEE (+85%, p = .002), peak power (+307%, p < .001), VO2Peak (absolute +21%, relative +22%, p ≤ .024), peak work (19% increase, p = .003), and total body fat decreased (-6%, p = .05). The FES group showed a decrease in percentage body fat mass (-5%, p = .008). The ACE group had higher EEE (p = .008), peak power (p < .001), and relative VO2Peak (p = .025) compared to postintervention values in the FES group. Conclusion: In the current study, ACE induced greater increases in EEE and CRF, whereas ACE and FES showed similar results on body fat. Exercise promotional efforts targeting persons with SCI should use both FES and ACE to reduce sedentary behavior and to optimize different health parameters after SCI.


Asunto(s)
Composición Corporal/fisiología , Capacidad Cardiovascular/fisiología , Terapia por Estimulación Eléctrica/métodos , Metabolismo Energético/fisiología , Terapia por Ejercicio/métodos , Obesidad/terapia , Traumatismos de la Médula Espinal/terapia , Adulto , Enfermedades Cardiovasculares/prevención & control , Terapia Combinada , Prueba de Esfuerzo , Femenino , Humanos , Masculino , Persona de Mediana Edad , Obesidad/etiología , Obesidad/fisiopatología , Consumo de Oxígeno/fisiología , Traumatismos de la Médula Espinal/complicaciones , Traumatismos de la Médula Espinal/fisiopatología , Adulto Joven
8.
Parkinsonism Relat Disord ; 86: 19-26, 2021 05.
Artículo en Inglés | MEDLINE | ID: mdl-33819900

RESUMEN

INTRODUCTION: Cognitive deficits occur in Parkinson's disease (PD). Cardiorespiratory fitness (CRF) is associated with better cognitive performance in aging especially in executive function (EF) and memory. The association between CRF and cognitive performance is understudied in people with PD. Brain structures underlying associations also remains unknown. This cross-sectional study examined the associations between CRF and cognitive performance in PD. We also examined associations between CRF and brain structures impacted in PD. Mediation analysis were conducted to examine whether brain structures impacted in PD mediate putative associations between CRF and cognitive performance. METHODS: Individuals with PD (N = 33) underwent magnetic resonance imaging (MRI), CRF evaluation (estimated VO2max), and neuropsychological assessment. Composite cognitive scores of episodic memory, EF, attention, language, and visuospatial functioning were generated. Structural equation models were constructed to examine whether MRI volume estimates (thalamus and pallidum) mediated associations between CRF and cognitive performance (adjusting for age, education, PD disease duration, sex, MDS-UPDRS motor score, and total intracranial volume). RESULTS: Higher CRF was associated with better episodic memory (Standardized ß = 0.391; p = 0.008), EF (Standardized ß = 0.324; p = 0.025), and visuospatial performance (Standardized ß = 0.570; p = 0.005). Higher CRF was associated with larger thalamic (Standardized ß = 0.722; p = 0.004) and pallidum (Standardized ß = 0.635; p = 0.004) volumes. Thalamic volume mediated the association between higher CRF and better EF (Indirect effect = 0.309) and episodic memory (Indirect effect = 0.209) performance (p < 0.05). The pallidum did not significantly mediate associations between CRF and cognitive outcomes. CONCLUSION: The thalamus plays an important role in the association between CRF and both EF and episodic memory in PD.


Asunto(s)
Capacidad Cardiovascular/fisiología , Disfunción Cognitiva/fisiopatología , Enfermedad de Parkinson/fisiopatología , Tálamo/fisiopatología , Anciano , Cognición/fisiología , Disfunción Cognitiva/etiología , Estudios Transversales , Femenino , Humanos , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Enfermedad de Parkinson/complicaciones
9.
Clin Nutr ; 40(6): 4097-4105, 2021 06.
Artículo en Inglés | MEDLINE | ID: mdl-33618966

RESUMEN

BACKGROUND AND OBJECTIVE: Exercise increases quality of life and lowers all-cause mortality, likely by preventing cardiovascular disease. Although the beneficial effects of exercise are linked with reductions in chronic inflammation, individual responses vary and factors that contribute to the anti-inflammatory effects of cardiovascular fitness remain largely undefined. We sought to investigate the role of fatty acids in the inverse relationship between inflammation and cardiovascular fitness. APPROACH AND RESULTS: In this cross-sectional study using data from 435 participants in NHANES and linear regression models with CRP as the outcome, we observed significant negative interactions between VO2max and omega-3 polyunsaturated fatty acids (PUFAs) but not saturated, monounsaturated, or omega-6 PUFAs. When stratified by omega-3 PUFA tertiles, participants in the medium tertile, but not low tertile, show an enhanced negative association between VO2max and CRP, with a -32.0% difference (95% CI: -44.95, -15.9%) per 10 mL/kg/min of VO2max. Exploratory factor analysis identified five unique dietary fatty acid (FA) profiles. The FA profile consisting predominantly of omega-3 PUFA had the strongest negative association for VO2max and CRP, with a -28.2% difference in CRP (95% CI: -43.4, -8.9) per 10 mL/kg/min of VO2max. We also found that alpha-linolenic acid (ALA) and docosahexaenoic acid (DHA) enhanced the negative association between VO2max and CRP, suggesting that the anti-inflammatory response to VO2max capacity is associated with ALA and DHA levels. Males, Whites, and individuals with lower BMI were more sensitive to the effects of omega-3 PUFAs, while having high SFA levels attenuated the benefit. CONCLUSIONS: This study suggests that omega-3 PUFAs are effect modifiers for VO2max and CRP and that the anti-inflammatory benefits of increasing cardiovascular fitness are associated with omega-3 PUFAs.


Asunto(s)
Antiinflamatorios/sangre , Proteína C-Reactiva/análisis , Capacidad Cardiovascular/fisiología , Ácidos Grasos Omega-3/sangre , Consumo de Oxígeno/efectos de los fármacos , Adulto , Sistema Cardiovascular/efectos de los fármacos , Estudios Transversales , Ejercicio Físico/fisiología , Ácidos Grasos Omega-6/sangre , Femenino , Humanos , Inflamación , Modelos Lineales , Masculino , Encuestas Nutricionales
10.
J Ethnopharmacol ; 272: 113929, 2021 May 23.
Artículo en Inglés | MEDLINE | ID: mdl-33600918

RESUMEN

ETHNOPHARMACOLOGICAL RELEVANCE: Ashwagandha is a reputed herb in traditional Ayurveda, used for various ailments and improving general well-being. Improved cardiorespiratory endurance can aid in attaining better physiological, metabolic, and functional abilities in humans. According to Ayurveda, Ashwagandha has such potential to improve human health. AIM OF THE STUDY: This study aimed to evaluate the efficacy and safety of Ashwagandha root extract in enhancing cardiorespiratory endurance in healthy athletic adults. MATERIALS AND METHODS: Fifty healthy athletic adults were selected randomly and equally allocated to Ashwagandha and placebo groups. The Ashwagandha group received 300 mg of Ashwagandha root extract capsules, twice daily, for 8-weeks. Cardiorespiratory endurance was assessed by measuring the maximum aerobic capacity (VO2 max). Estimation of stress management was done through Total Quality Recovery Scores (TQR), Recovery-Stress Questionnaire for Athletes (RESTQ), and Daily Analysis of Life Demands for Athletes (DALDA) questionnaires along with the antioxidant level measurement. RESULTS: At the end of the study, a statistically significant improvement in VO2 max outcome was observed in the Ashwagandha group when compared to the placebo group (P = 0.0074). The subjects in the Ashwagandha group also displayed a statistically significant increase at the end of the study when compared to the baseline (P < 0.0001). Significantly improved TQR scores were observed in the Ashwagandha group members compared to their placebo counterparts (P < 0.0001). DALDA questionnaire analysis in the Ashwagandha group was found statistically significant (P < 0.0001) compared to the placebo group. RESTQ assessment also yielded better outcomes, especially for fatigue recovery (P < 0.0001), lack of energy (P < 0.0001), and fitness analysis (P < 0.0001). The enhanced antioxidant level was significant (P < 0.0001) in the Ashwagandha group. CONCLUSION: The present findings suggest that Ashwagandha root extract can successfully enhance cardiorespiratory endurance and improve the quality of life in healthy athletic adults. No adverse events were reported by any of the subjects in this study.


Asunto(s)
Capacidad Cardiovascular/fisiología , Extractos Vegetales/uso terapéutico , Raíces de Plantas/química , Deportes/fisiología , Withania/química , Adulto , Antioxidantes/análisis , Suplementos Dietéticos , Método Doble Ciego , Voluntarios Sanos , Humanos , Ventilación Voluntaria Máxima/efectos de los fármacos , Medicina Ayurvédica , Extractos Vegetales/efectos adversos , Extractos Vegetales/química , Estudios Prospectivos , Fenómenos Fisiológicos en la Nutrición Deportiva/efectos de los fármacos , Encuestas y Cuestionarios , Adulto Joven
11.
Nutrients ; 14(1)2021 Dec 29.
Artículo en Inglés | MEDLINE | ID: mdl-35011022

RESUMEN

The aim of this study was to investigate the possible beneficial effects of exercise training (ET) with omega-3/Calanus oil supplementation on cardiorespiratory and adiposity parameters in elderly women. Fifty-five women (BMI: 19-37 kg/m2, 62-80 years old) were recruited and randomly assigned to the 4 month intervention with ET and omega-3 supplementation (Calanus oil, ET-Calanus) or ET and the placebo (sunflower oil; ET-Placebo). The body composition was determined by dual-energy X-ray absorptiometry (DXA), and cardiorespiratory parameters were measured using spiroergometry and PhysioFlow hemodynamic testing. Both interventions resulted in an increased lean mass whereas the fat mass was reduced in the leg and trunk as well as the android and gynoid regions. The content of trunk fat (in percent of the total fat) was lower and the content of the leg fat was higher in the ET-Calanus group compared with the ET-Placebo. Although both interventions resulted in similar improvements in cardiorespiratory fitness (VO2max), it was explained by an increased peripheral oxygen extraction (a-vO2diff) alone in the ET-Placebo group whereas increased values of both a-vO2diff and maximal cardiac output (COmax) were observed in the ET-Calanus group. Changes in COmax were associated with changes in systemic vascular resistance, circulating free fatty acids, and the omega-3 index. In conclusion, Calanus oil supplementation during a 4 month ET intervention in elderly women improved the cardiorespiratory function, which was due to combined central and peripheral cardiodynamic mechanisms.


Asunto(s)
Envejecimiento/fisiología , Capacidad Cardiovascular/fisiología , Suplementos Dietéticos , Ejercicio Físico/fisiología , Ácidos Grasos Omega-3/administración & dosificación , Anciano , Anciano de 80 o más Años , Composición Corporal , Gasto Cardíaco , Femenino , Humanos , Persona de Mediana Edad , Plancton/química , Resistencia Vascular
12.
Med Sci Sports Exerc ; 53(4): 673-683, 2021 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-33105389

RESUMEN

PURPOSE: This study aimed to evaluate the effects of low energy availability (EA) on health and performance indices associated with the Male Athlete Triad and Relative Energy Deficiency in Sport (RED-S) models. METHODS: Over an 8-wk period, a male combat sport athlete adhered to a phased body mass (BM) loss plan consisting of 7-wk energy intake (EI) equating to resting metabolic rate (RMR) (1700 kcal·d-1) (phase 1), 5 d of reduced EI (1200-300 kcal·d-1) before weigh-in (phase 2), and 1 wk of ad libitum EI postcompetition (phase 3). EA fluctuated day by day because of variations in exercise energy expenditure. Regular assessments of body composition, RMR, cardiac function, cardiorespiratory capacity, strength and power, psychological state and blood clinical chemistry for endocrine, bone turnover, hydration, electrolyte, renal, liver, and lipid profiles were performed. RESULTS: BM was reduced over the 8-wk period by 13.5% (72.5 to 62.7 kg). No consequences of Male Athlete Triad or RED-S were evident during phase 1, where mean daily EA equated to 20 kcal·kg·fat free mass (FFM)-1·d-1 (range, 7 to 31 kcal·kg FFM-1·d-1) and BM and fat mass (FM) losses were 6.5 and 4.4 kg, respectively. However, consequences did present in phase 2 when mean daily EA was consistently <10 kcal·kg FFM-1·d-1, as evidenced by alterations to endocrine hormones (e.g., testosterone <5 nmol.L-1) and reduced RMR (-257 kcal·d-1). CONCLUSION: Data demonstrate that 7 wk of daily fluctuations in EA equating to a mean value of 20 kcal·kg FFM-1·d-1 permits reductions of BM and FM without perturbations to physiological systems associated with the Male Athlete Triad and RED-S. By contrast, a subsequent period of five consecutive days of EA <10 kcal·kg FFM-1·d-1 induced consequences of Male Athlete Triad and RED-S.


Asunto(s)
Rendimiento Atlético/fisiología , Rendimiento Atlético/psicología , Ingestión de Energía/fisiología , Metabolismo Energético/fisiología , Artes Marciales/fisiología , Artes Marciales/psicología , Atletas , Metabolismo Basal , Composición Corporal/fisiología , Índice de Masa Corporal , Capacidad Cardiovascular/fisiología , Frecuencia Cardíaca , Humanos , Masculino , Fuerza Muscular/fisiología , Contracción Miocárdica , Deficiencia Relativa de Energía en el Deporte/sangre , Deficiencia Relativa de Energía en el Deporte/fisiopatología , Volumen Sistólico , Testosterona/sangre , Factores de Tiempo , Pérdida de Peso/fisiología , Adulto Joven
13.
Cochrane Database Syst Rev ; 10: CD013400, 2020 10 28.
Artículo en Inglés | MEDLINE | ID: mdl-33112424

RESUMEN

BACKGROUND: Congenital heart disease (ConHD) affects approximately 1% of all live births. People with ConHD are living longer due to improved medical intervention and are at risk of developing non-communicable diseases. Cardiorespiratory fitness (CRF) is reduced in people with ConHD, who deteriorate faster compared to healthy people. CRF is known to be prognostic of future mortality and morbidity: it is therefore important to assess the evidence base on physical activity interventions in this population to inform decision making. OBJECTIVES: To assess the effectiveness and safety of all types of physical activity interventions versus standard care in individuals with congenital heart disease. SEARCH METHODS: We undertook a systematic search on 23 September 2019 of the following databases: CENTRAL, MEDLINE, Embase, CINAHL, AMED, BIOSIS Citation Index, Web of Science Core Collection, LILACS and DARE. We also searched ClinicalTrials.gov and we reviewed the reference lists of relevant systematic reviews. SELECTION CRITERIA: We included randomised controlled trials (RCT) that compared any type of physical activity intervention against a 'no physical activity' (usual care) control. We included all individuals with a diagnosis of congenital heart disease, regardless of age or previous medical interventions.  DATA COLLECTION AND ANALYSIS: Two review authors (CAW and CW) independently screened all the identified references for inclusion. We retrieved and read all full papers; and we contacted study authors if we needed any further information. The same two independent reviewers who extracted the data then processed the included papers, assessed their risk of bias using RoB 2 and assessed the certainty of the evidence using the GRADE approach. The primary outcomes were: maximal cardiorespiratory fitness (CRF) assessed by peak oxygen consumption; health-related quality of life (HRQoL) determined by a validated questionnaire; and device-worn 'objective' measures of physical activity. MAIN RESULTS: We included 15 RCTs with 924 participants in the review. The median intervention length/follow-up length was 12 weeks (12 to 26 interquartile range (IQR)). There were five RCTs of children and adolescents (n = 500) and 10 adult RCTs (n = 424). We identified three types of intervention: physical activity promotion; exercise training; and inspiratory muscle training. We assessed the risk of bias of results for CRF as either being of some concern (n = 12) or at a high risk of bias (n = 2), due to a failure to blind intervention staff. One study did not report this outcome. Using the GRADE method, we assessed the certainty of evidence as moderate to very low across measured outcomes. When we pooled all types of interventions (physical activity promotion, exercise training and inspiratory muscle training), compared to a 'no exercise' control CRF may slightly increase, with a mean difference (MD) of 1.89 mL/kg-1/min-1 (95% CI -0.22 to 3.99; n = 732; moderate-certainty evidence). The evidence is very uncertain about the effect of physical activity and exercise interventions on HRQoL. There was a standardised mean difference (SMD) of 0.76 (95% CI -0.13 to 1.65; n = 163; very low certainty evidence) in HRQoL. However, we could pool only three studies in a meta-analysis, due to different ways of reporting. Only one study out of eight showed a positive effect on HRQoL. There may be a small improvement in mean daily physical activity (PA) (SMD 0.38, 95% CI -0.15 to 0.92; n = 328; low-certainty evidence), which equates to approximately an additional 10 minutes of physical activity daily (95% CI -2.50 to 22.20). Physical activity and exercise interventions likely result in an increase in submaximal cardiorespiratory fitness (MD 2.05, 95% CI 0.05 to 4.05; n = 179; moderate-certainty evidence). Physical activity and exercise interventions likely increase muscular strength (MD 17.13, 95% CI 3.45 to 30.81; n = 18; moderate-certainty evidence). Eleven studies (n = 501) reported on the outcome of adverse events (73% of total studies). Of the 11 studies, six studies reported zero adverse events. Five studies reported a total of 11 adverse events; 36% of adverse events were cardiac related (n = 4); there were, however, no serious adverse events related to the interventions or reported fatalities (moderate-certainty evidence). No studies reported hospital admissions. AUTHORS' CONCLUSIONS: This review summarises the latest evidence on CRF, HRQoL and PA. Although there were only small improvements in CRF and PA, and small to no improvements in HRQoL, there were no reported serious adverse events related to the interventions. Although these data are promising, there is currently insufficient evidence to definitively determine the impact of physical activity interventions in ConHD. Further high-quality randomised controlled trials are therefore needed, utilising a longer duration of follow-up.


Asunto(s)
Ejercicios Respiratorios , Capacidad Cardiovascular/fisiología , Ejercicio Físico/fisiología , Cardiopatías Congénitas/rehabilitación , Adolescente , Adulto , Sesgo , Niño , Femenino , Humanos , Masculino , Fuerza Muscular , Consumo de Oxígeno/fisiología , Calidad de Vida , Ensayos Clínicos Controlados Aleatorios como Asunto
14.
J Clin Endocrinol Metab ; 105(12)2020 12 01.
Artículo en Inglés | MEDLINE | ID: mdl-32902644

RESUMEN

CONTEXT: Metabolic disturbances and a pro-inflammatory state associated with aging and obesity may be mitigated by physical activity or nutrition interventions. OBJECTIVE: The aim of this study is to assess whether physical fitness/exercise training (ET) alleviates inflammation in adipose tissue (AT), particularly in combination with omega-3 supplementation, and whether changes in AT induced by ET can contribute to an improvement of insulin sensitivity and metabolic health in the elderly. DESIGN, PARTICIPANTS, MAIN OUTCOME MEASURES: The effect of physical fitness was determined in cross-sectional comparison of physically active/physically fit (trained) and sedentary/less physically fit (untrained) older women (71 ± 4 years, n = 48); and in double-blind randomized intervention by 4 months of ET with or without omega-3 (Calanus oil) supplementation (n = 55). Physical fitness was evaluated by spiroergometry (maximum graded exercise test) and senior fitness tests. Insulin sensitivity was measured by hyperinsulinemic-euglycemic clamp. Samples of subcutaneous AT were used to analyze mRNA gene expression, cytokine secretion, and immune cell populations. RESULTS: Trained women had lower mRNA levels of inflammation and oxidative stress markers, lower relative content of CD36+ macrophages, and higher relative content of γδT-cells in AT when compared with untrained women. Similar effects were recapitulated in response to a 4-month ET intervention. Content of CD36+ cells, γδT-cells, and mRNA expression of several inflammatory and oxidative stress markers correlated to insulin sensitivity and cardiorespiratory fitness. CONCLUSIONS: In older women, physical fitness is associated with less inflammation in AT. This may contribute to beneficial metabolic outcomes achieved by ET. When combined with ET, omega-3 supplementation had no additional beneficial effects on AT inflammatory characteristics.


Asunto(s)
Tejido Adiposo/patología , Envejecimiento/fisiología , Ejercicio Físico/fisiología , Inflamación/prevención & control , Tejido Adiposo/inmunología , Tejido Adiposo/metabolismo , Anciano , Anciano de 80 o más Años , Capacidad Cardiovascular/fisiología , Estudios Transversales , Terapia por Ejercicio , Femenino , Humanos , Inflamación/metabolismo , Inflamación/patología , Resistencia a la Insulina/fisiología , Persona de Mediana Edad , Fuerza Muscular/fisiología , Aptitud Física/fisiología
15.
Cogn Affect Behav Neurosci ; 20(4): 842-858, 2020 08.
Artículo en Inglés | MEDLINE | ID: mdl-32700292

RESUMEN

Relationships between gross motor skills and cardiovascular fitness with visuospatial working memory (VSWM) in children are hypothesized to be mediated by underlying functional brain mechanisms. Because there is little experimental evidence to support this mechanism, the present study was designed to investigate the relationships of gross motor skills and cardiovascular fitness with VSWM-related brain activation in 8- to 10-year-old children. Functional magnetic resonance imaging data obtained during a VSWM-task were analyzed for 80 children from grades 3 (47.5%) and 4 of 21 primary schools in the Netherlands (51.3% girls). Gross motor skills (Korper Koordinationstest für Kinder and Bruininks-Oseretsky Test of Motor Proficiency - 2nd Edition) and cardiovascular fitness (20-meter Shuttle Run Test) were assessed. VSWM-related brain activation was found in a network involving the angular gyrus, the superior parietal cortex, and the thalamus; deactivation was found in the inferior and middle temporal gyri. Although behavioral results showed significant relations of gross motor skills and cardiovascular fitness with VSWM performance, gross motor skills and cardiovascular fitness were not related to VSWM-related brain activation. Therefore, we could not confirm the hypothesis that brain activation underlies the relationship of gross motor skills and cardiovascular fitness with VSWM performance. Our results suggest that either the effects of physical activity on cognition do not necessarily go via changes in gross motor skills and/or cardiovascular fitness, or that brain activation patterns as measured with the blood-oxygen-level dependent (BOLD) signal may not be the mechanism underlying the relationships of gross motor skills and cardiovascular fitness with VSWM.


Asunto(s)
Capacidad Cardiovascular/fisiología , Corteza Cerebral/fisiología , Desarrollo Infantil/fisiología , Memoria a Corto Plazo/fisiología , Destreza Motora/fisiología , Red Nerviosa/fisiología , Desempeño Psicomotor/fisiología , Percepción Espacial/fisiología , Tálamo/fisiología , Percepción Visual/fisiología , Mapeo Encefálico , Corteza Cerebral/diagnóstico por imagen , Niño , Femenino , Humanos , Imagen por Resonancia Magnética , Masculino , Red Nerviosa/diagnóstico por imagen , Tálamo/diagnóstico por imagen
16.
World J Gastroenterol ; 26(20): 2479-2497, 2020 May 28.
Artículo en Inglés | MEDLINE | ID: mdl-32523306

RESUMEN

The aim of this review is to offer dietary advice for individuals with spinal cord injury (SCI) and neurogenic bowel dysfunction. With this in mind, we consider health conditions that are dependent on the level of lesion including skeletal muscle atrophy, autonomic dysreflexia and neurogenic bladder. In addition, SCI is often associated with a sedentary lifestyle, which increases risk for osteoporosis and diseases associated with chronic low-grade inflammation, including cardiovascular and chronic kidney diseases. The Mediterranean diet, along with exercise and dietary supplements, has been suggested as an anti-inflammatory intervention in individuals with SCI. However, individuals with chronic SCI have a daily intake of whole fruit, vegetables and whole grains lower than the recommended dietary allowance for the general population. Some studies have reported an increase in neurogenic bowel dysfunction symptoms after high fiber intake; therefore, this finding could explain the low consumption of plant foods. Low consumption of fibre induces dysbiosis, which is associated with both endotoxemia and inflammation. Dysbiosis can be reduced by exercise and diet in individuals with SCI. Therefore, to summarize our viewpoint, we developed a Mediterranean diet-based diet and exercise pyramid to integrate nutritional recommendations and exercise guidelines. Nutritional guidelines come from previously suggested recommendations for military veterans with disabilities and individuals with SCI, chronic kidney diseases, chronic pain and irritable bowel syndrome. We also considered the recent exercise guidelines and position stands for adults with SCI to improve muscle strength, flexibility and cardiorespiratory fitness and to obtain cardiometabolic benefits. Finally, dietary advice for Paralympic athletes is suggested.


Asunto(s)
Dieta Mediterránea , Terapia por Ejercicio/métodos , Intestino Neurogénico/dietoterapia , Traumatismos de la Médula Espinal/complicaciones , Adulto , Capacidad Cardiovascular/fisiología , Terapia Combinada/métodos , Fibras de la Dieta , Frutas , Humanos , Intestino Neurogénico/etiología , Intestino Neurogénico/fisiopatología , Paratletas , Ingesta Diaria Recomendada , Conducta Sedentaria , Traumatismos de la Médula Espinal/fisiopatología , Verduras , Granos Enteros
17.
Trials ; 21(1): 184, 2020 Feb 14.
Artículo en Inglés | MEDLINE | ID: mdl-32059691

RESUMEN

BACKGROUND: Individuals affected by stroke present with changes in cardiovascular and respiratory functions. Cardiorespiratory training (CRT) is one of the classic intervention guidelines for cardiorespiratory fitness. CRT in association with the proprioceptive neuromuscular facilitation (PNF) technique for respiratory muscles could improve the quality of life, cardiorespiratory function and gait parameters of patients after stroke. OBJECTIVE: To assess the effects of respiratory and trunk patterns of CRT associated with PNF on the quality of life, gait, oxygen consumption, respiratory muscle strength and thoracic volumes. METHODS/DESIGN: A blind, randomized clinical trial with allocation confidentiality will be performed. Forty patients will be randomized into four groups: CRT-lower limb (LL) plus PNF; CRT-LL and respiration; CRT-upper limb (UL) plus PNF; or CRT-UL and respiration. Individuals will be evaluated at three different times (pretreatment, after 20 days of treatment and 1 month after the end of treatment). The treatment protocol consists of respiratory exercises, 30 min of CRT (cycle ergometer) and then repetition of the respiratory exercises, performed three times a week over a period of 20 days. Primary outcome measures are quality of life, gait, balance, peak oxygen uptake and rib cage compartment volumes. As secondary outcomes, respiratory function and maximal inspiratory and expiratory pressures will be measured. DISCUSSION: The association of PNF with CRT may be a viable and accessible alternative to increase cardiorespiratory function in patients with stroke. TRIAL REGISTRATION: ClinicalTrials.gov, NCT03171012. Registered on 6 June 2017.


Asunto(s)
Ejercicios Respiratorios/métodos , Ejercicios de Estiramiento Muscular/fisiología , Rehabilitación de Accidente Cerebrovascular/métodos , Accidente Cerebrovascular/fisiopatología , Adulto , Anciano , Capacidad Cardiovascular/fisiología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Calidad de Vida , Ensayos Clínicos Controlados Aleatorios como Asunto , Músculos Respiratorios/fisiopatología , Resultado del Tratamiento , Adulto Joven
18.
Cir Esp (Engl Ed) ; 98(4): 178-186, 2020 Apr.
Artículo en Inglés, Español | MEDLINE | ID: mdl-31987464

RESUMEN

Prehabilitation has a multimodal conception based on three fundamental pillars: improvement of the patient's physical condition, nutritional optimization and cognitive intervention to reduce stress and anxiety, as well as other measures such as smoking cessation and correction of anemia. The aim of prehabilitation programs is to optimize the patient from the moment of diagnosis until the surgical intervention in order to reduce postoperative complications. As in the case of multimodal rehabilitation protocols, the actions of prehabilitation programs have synergistic effects, that is, small changes that, by themselves, do not have clinical significance but when added up, they produce a significant improvement in the postoperative evolution of patients. Although more studies are required to evaluate the impact of these programs on patients groups with different pathologies, interventions and risk factors, their progressive implementation is necessary in the daily clinical practice of our patients. The objective of this narrative review is to evaluate the available evidence about prehabilitation in surgery, focusing on current established strategies, knowledge gaps and future research.


Asunto(s)
Recuperación Mejorada Después de la Cirugía , Complicaciones Posoperatorias/prevención & control , Ejercicio Preoperatorio/fisiología , Anemia/terapia , Ansiedad/prevención & control , Composición Corporal , Capacidad Cardiovascular/fisiología , Ejercicio Físico , Humanos , Conciliación de Medicamentos , Atención Plena , Estado Nutricional , Acondicionamiento Físico Humano , Rendimiento Físico Funcional , Pruebas Psicológicas , Cese del Hábito de Fumar , Estrés Fisiológico/fisiología , Prueba de Paso
19.
J Bodyw Mov Ther ; 24(1): 212-220, 2020 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-31987547

RESUMEN

INTRODUCTION: It is generally accepted that physical activity promotes healthy aging. Recent studies suggest dance could also benefit cognition and physical health in seniors, but many styles and approaches of dance exist and rigorous designs for intervention studies are still scarce. The aim of this study was to compare the effects of Dance/Movement Training (DMT) to Aerobic Exercise Training (AET) on cognition, physical fitness and health-related quality of life in healthy inactive elderly. METHODS: A single-center, randomized, parallel assignment, open label trial was conducted with 62 older adults (mean age = 67.48 ±â€¯5.37 years) recruited from the community. Participants were randomly assigned to a 12-week (3x/week, 1hr/session) DMT program, AET program or control group. Cognitive functioning, physical fitness and health-related quality of life were assessed at baseline (T-0), and post-training (T-12 weeks). RESULTS: 41 participants completed the study. Executive and non-executive composite scores showed a significant increase post-training (F(1,37) = 4.35, p = .04; F(1,37) = 7.01, p = .01). Cardiovascular fitness improvements were specific to the AET group (F(2,38) = 16.40, p < .001) while mobility improvements were not group-dependent (10 m walk: F(1,38) = 11.67, p = .002; Timed up and go: F(1,38) = 22.07, p < .001). CONCLUSIONS: Results suggest that DMT may have a positive impact on cognition and physical functioning in older adults however further research is needed. This study could serve as a model for designing future RCTs with dance-related interventions. REGISTRATION: clinicaltrials. gov Identifier NCT02455258.


Asunto(s)
Cognición/fisiología , Baile/fisiología , Terapia por Ejercicio/métodos , Aptitud Física/fisiología , Calidad de Vida , Anciano , Capacidad Cardiovascular/fisiología , Femenino , Envejecimiento Saludable/fisiología , Humanos , Masculino , Persona de Mediana Edad , Equilibrio Postural/fisiología
20.
J Bodyw Mov Ther ; 24(1): 248-252, 2020 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-31987552

RESUMEN

BACKGROUND: Fibromyalgia is a condition that predominantly affects women and is characterized by chronic pain. As a consequence, it has been suggested that there is a decrease in muscle strength, a prime component of physical fitness, and thus a reduction in functional performance. Therefore, it is necessary to perform a complete and reliable physical evaluation of functional performance. The aim of this study was to compare the functional and isokinetic performance between women with fibromyalgia and healthy women. METHODS: This is a cross-sectional study that evaluated 40 women divided into 2 groups: Healthy Group (HG) (n = 20); Fibromyalgia Group (FG) (n = 20), aged between 30 and 50 years. The individuals were submitted to an evaluation of functional performance through the following tests: Timed Up and Go (TUGT), Chair Stand Test, 6-Minute Walk test (6MWT), Sit and Reach Test, and Isokinetic performance of the knee extensor and flexor groups. Statistical analysis was performed by the statistical SPSS 22.0 software for Windows. RESULTS: A lower index was observed in the 6-min Walk Test (p < 0.001), Chair Stand Test (p < 0.001), and VO2 Peak (p < 0.001) for FG. There were no significant differences in isokinetic performance (p > 0.05). CONCLUSIONS: The results point to lower functional performance in individuals with fibromyalgia when compared to healthy individuals of the same age and physical activity level. Therefore, it is evident that performing therapeutic exercises of different modalities to improve the functional performance of patients with FM is important.


Asunto(s)
Capacidad Cardiovascular/fisiología , Fibromialgia/fisiopatología , Músculo Esquelético/fisiología , Rendimiento Físico Funcional , Adulto , Estudios Transversales , Prueba de Esfuerzo/métodos , Femenino , Humanos , Persona de Mediana Edad , Modalidades de Fisioterapia , Equilibrio Postural , Método Simple Ciego
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