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Rev. méd. Chile ; 146(12): 1429-1437, dic. 2018. tab, graf
Article in English | LILACS | ID: biblio-991353

ABSTRACT

ABSTRACT Background: Maximal voluntary isometric handgrip strength (MVIHS) is influenced by age, sex, and handedness. Aim: To assess the association of MVIHS with age, sex, and handedness in older adults. Material and Methods: MVIHS was measured using a digital dynamometer in 60 men and 60 women aged 73 ± 6 years. Weight, height and handedness were also recorded. For analysis purposes, participants were divided into two age groups (65 to 70.9 years of age and ≥ 71 years). Results: A negative correlation was observed between age and MVIHS in the non-dominant (r = −0.65 and −0.59 in men and women, respectively) and dominant hands (r = −0.71 and −0.64 in men and women, respectively). When age and MVIHS were correlated in the group aged 65-70 years, a significant correlation was observed in the non-dominant (r = −045 and −0.61 in men and women, respectively) and dominant hands (r = −0.47 and −0.64 in men and women, respectively). In the group aged ≥ 71 years, a stronger correlation with age was also observed in the non-dominant (r = −0.92 and −0.90 in men and women, respectively) and dominant hands (r = −0.95 and −0.90 in men and women, respectively). MVIHS was 2.8 to 8.9% lower in the non-dominant than in the dominant hand in all age groups. MVIHS was lower in women than in men in both age groups. Conclusions: MVIHS declines with age (especially after 71 years of age), is higher in men than women, and higher in the dominant than the non-dominant hand.


Antecedentes: La fuerza de agarre isométrica voluntaria máxima (FAIVM) puede verse influenciada por la edad, el sexo y la dominancia. Objetivo: Describir la FAIVM y su relación con la edad, el sexo y la dominancia en adultos mayores. Material y Métodos: La FAIVM, la masa corporal, la talla, y la dominancia fueron medidas mediante protocolos estandarizados en 60 hombres e igual número de mujeres que fueron divididos en dos grupos acorde a su edad (65 a 70,9 años, y ≥ 71 años, respectivamente). Resultados: Se observó una correlación entre la edad y la FAIVM de mano no-dominante (hombres: r = −0,65; mujeres: r = −0,59) y dominante (hombres: r = −0,71; mujeres: r = −0,64). Al correlacionar la FAIVM y la edad en el grupo de 65-70 años, una correlación significativa fue observada en la mano no-dominante (hombres, r = −0,45; mujeres, r = −0,61) y mano dominante (hombres, r = −0,47; mujeres, r = −0,64). En el grupo ≥ 71 años, la edad tuvo una mayor correlación con la FAIVM de la mano no-dominante (hombres, r = −0,92; mujeres, r = −0,90) y mano dominante (hombres, r = −0,95; mujeres, r = −0,90). Comparada con la mano dominante, la mano no-dominante presentó menores valores de FAIVM en todos los grupos, variando entre −2,8 a −8,9%. Comparadas con los hombres, las mujeres presentaron menor FAIVM en mano dominante y no-dominante, en ambos grupos de edad. Conclusión: La FAIVM disminuye con la edad, especialmente desde los 71 años; es mayor en hombres comparados con mujeres y es mayor en mano dominante comparada con mano no-dominante.


Subject(s)
Humans , Male , Female , Middle Aged , Aged , Hand Strength/physiology , Isometric Contraction/physiology , Functional Laterality/physiology , Geriatric Assessment/methods , Sex Factors , Cross-Sectional Studies , Age Factors
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