RESUMO
Introducción. La población de personas mayores de la cuarta edad (≥80 años) crece a gran velocidad. Esta se diferencia de la tercera edad en cuanto a su funcionalidad. Es sabido que mientras menor sea la velocidad de la marcha en esta población, mayor es el riesgo de deterioro cognitivo, sarcopenia, discapacidad e institucionalización. La velocidad de marcha disminuida es un predictor importante de deterioro en el rendimiento físico. Objetivo. Determinar la correlación entre la velocidad de marcha, fuerza de miembros inferiores y largo del paso en personas mayores de cuarta edad que viven en la comunidad. Métodos. Estudio transversal en personas mayores saludables de la cuarta edad (n=14; 8 mujeres; 88 ± 3 años; 26,3 ± 3,4 kg·m-2) que fueron sometidas a evaluaciones de rendimiento físico, tales como largo del paso; fuerza de miembros inferiores a través de 1 Repetición Máxima (1RM) de extensión de rodilla en ambos miembros inferiores y velocidad de marcha en 4 metros. Los datos se presentan como media±desviación estándar. Se consideró un valor de P significativo < 0.05. Resultados. Se observó una correlación positiva moderada entre el largo del paso y la velocidad de marcha (R=0,794; P=0,001). No existieron correlaciones entre la fuerza de miembros inferiores y largo del paso (R=0,478; P=0,084), tampoco entre las variables de fuerza y velocidad de marcha (R=0,441; P=0.115). Conclusión. Las personas mayores de cuarta edad presentan una correlación positiva entre su velocidad de marcha y largo del paso.
Background. The population of people older than the fourth age (≥80 years) is growing rapidly. This differs from the third age in terms of its functionality. It is known that the lower the gait speed in this population, the greater the risk of cognitive impairment, sarcopenia, disability and institutionalization. Decreased gait speed is an important predictor of deterioration in physical performance. Objetive. To determine the correlation between gait speed, lower limb strength and stride length in fourth age people (≥80 years) who live in the community. Methods. Cross-sectional study in healthy older people of the fourth age (n=14; 8 women; 88 ± 3 years; 26.3 ± 3.4 kg·m-2) who underwent physical performance evaluations, such as long of the step; strength of lower limbs through 1 Maximum Repetition (1RM) of knee extension in both lower limbs and walking speed in 4 meters. Data are presented as mean ± standard deviation. A significant P value < 0.05 was considered. Results. A moderate positive correlation was observed between stride length and gait speed (R=0.794; P=0.001). There were no correlations between the strength of the lower limbs and stride length (R=0.478; P=0.084), nor between the variables of strength and gait speed (R=0.441; P=0.115). Conclusion. Fourth age older people older present a positive correlation between their walking speed and stride length.
RESUMO
BACKGROUND: The population of actively working older people is growing rapidly. The relationship between quality of life, levels of physical activity and functionality in this population is not entirely clear. AIM: To determine the association between quality of life, levels of physical activity and functional tests in actively working adults and older people. MATERIAL AND METHODS: Cross sectional assessment of 138 adults aged 40 to 50 years (53% women) and 119 older people aged 60 to 75 years (53% women) who were actively working in two public services. Quality of life was measured with the SF-36 questionnaire and usual physical activity was assessed with the International Physical Activity Questionnaire (IPAQ-short). Handgrip strength, the timed up and go (TUG) and chair stand test (CST) were used as functional tests. RESULTS: Compared to older people, adults had better physical functional tests (P < 0.01). Older people had better scores in the mental health component (MHC) of quality of life (p < 0.05). In adults, the physical health component of quality of life (CSF) had a positive association with physical activity (Spearman Rho (rs)= 0.270; p = 0.01), grip strength (rs = 0.330; p < 0.01) and the TUG (rs = −0.229; p < 0.01). In older patients, CSM and CST were positively correlated (rs = 0.201; P = 0.029). In both groups, a correlation was observed between CSM, grip strength (adults rs = 0.283; p < 0.01; older people rs = 0.211; P = 0.02) and with TUG (adults rs = −0.197; P = 0.021; older people rs = - 0.212; p = 0.02). CONCLUSIONS: There is a positive correlation between quality of life and level of physical activity in working adults, which is not observed in older people. Adequate performance in physical functional tests is positively correlated with better quality of life (CSF and CSM) in adults and only with the mental health component in older people.
Assuntos
Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Idoso , Qualidade de Vida , Exercício Físico , Saúde Mental , Estudos Transversais , Força da MãoRESUMO
SUMMARY: The aim of this study was to determine the effects of High-intensity interval training (HIIT) on the quality of life in healthy young people (YNG) and older adults (OLD)and its correlation with physical health status (anthropometric parameters and lower limb functionality) YNG (21 ? 2 years, BMI 26.37 ? 2.69 n = 12) and OLD (67 ? 5 years, BMI 27.16 ? 3.04 n = 12) groups underwent 12weeks of HIIT. Before and after the HIIT, anthropometric assessments, lower limb functionality tests, and SF-36 quality-of-life questionnaire were performed. There were no significant changes in the SF-36 dimensions (P>0.05). After HIIT, there were improvement percentage changes in Mental Component Summary (MCS) (YNG, +8.51 ? 25.80 % vs. OLD, +2.30 ? 9.05 %) and in Physical Component Summary (PCS) (YNG, +2.66 ? 20.54 % vs. OLD, +4.34 ? 22.71 %). Negative correlations were observed between body mass index (BMI) with PCS (R=-0.570, P=0.009) and with MCS (R=-0.649, P=0.002) in OLD as well as between MCS and waist circumference (R=-0.557, P?0.001) in both groups. Also, correlations were observed between PCS and the sit-to-stand test (R=-0.424, P=0.006) in both groups and gait speed (R=0.458, P=0.042) only in YNG. HIIT promotes positive percentage changes in quality of life, with YNG showing better results in PCS and OLD in MCS. Quality of life and physical health status were correlated in both groups.
RESUMEN: Determinar los efectos del entrenamiento interválico de alta intensidad (HIIT) sobre la calidad de vida en jóvenes sanos (YNG) y personas mayores (OLD) y su correlación con el estado de salud física (parámetros antropométricos y funcionalidad de miembros inferiores). Ambos grupos, YNG (21 ? 2 años, IMC 26,37 ? 2,69 n = 12) y OLD (67 ? 5 años, IMC 27,16 ? 3,04 n = 12) realizaron 12 semanas de HIIT. Antes y después del HIIT, se realizaron evaluaciones antropométricas, pruebas de funcionalidad de miembros inferiores y cuestionario de calidad de vida SF-36. No hubo cambios significativos en las dimensiones del SF-36 (P >0,05). Después del HIIT, hubo cambios porcentuales de mejora en el componente sumario mental (MCS) (YNG, +8.51 ? 25.80 % vs. OLD, +2.30 ? 9.05 %) y el componente sumario física (PCS) (YNG, +2,66 ? 20,54 % vs. OLD, +2,30 ? 9,05 %), correspondientes a la calidad de vida. Se observaron correlaciones negativas entre el índice de masa corporal (IMC) con PCS (R=-0,570; P=0,009) y con MCS (R=0,649; P=0,002) en OLD, así como entre MCS y circunferencia de cintura (R = - 0,557, P?0,001) en ambos grupos. Además, se observaron correlaciones entre PCS y la prueba de sentarse y levantarse (R = -0,424; P = 0,006) en ambos grupos y la velocidad de la marcha (R = 0,458; P = 0,042) solo en YNG. HIIT promueve cambios porcentuales positivos en la calidad de vida, con YNG mostrando mejores resultados en PCS y OLD en MCS. La calidad de vida y el estado de salud física se correlacionaron en ambos grupos.