Resumen
Recently, a valid method to assess lower-body muscle power based on a sit-to-stand feld test
(STS) has been published. Our study aimed to describe lower-body muscle power in older individuals
aged≥ 60 years and examine the relationship of muscle weakness with adverse events according
to gender- and age-specifc muscle weakness cut-of points. A total of 3689 Colombian older adults
(57.6% women, ...
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Recently, a valid method to assess lower-body muscle power based on a sit-to-stand feld test
(STS) has been published. Our study aimed to describe lower-body muscle power in older individuals
aged≥ 60 years and examine the relationship of muscle weakness with adverse events according
to gender- and age-specifc muscle weakness cut-of points. A total of 3689 Colombian older adults
(57.6% women, age 69.1 ± 6.9 years) from the 2015 Survey on Health, Well-Being, and Aging in Latin
America and the Caribbean (SABE) participated in this study. Lower-body muscle power normalized to
body mass was estimated by the fve-repetitions STS test. Anthropometric, physical performance and
clinical characteristics were collected. Age-specifc percentiles using the LMS method, cut-of points
and association with adverse events were calculated. Lower-body muscle power was greater in men
than among women (2.2 ± 0.7 vs. 1.6 ± 0.5W·kg−1, respectively; p < 0.001) at all ages. Muscle power
ranked in the 50th percentile between 2.38 and 1.30W·kg−1 in men, whereas women ranked between
1.79 and 1.21 W·kg−1. According to the cut-of points, lower-limb muscle power < 1 standard deviation
in men was associated with having dynapenia, poor gait speed, cognitive impairment and mental,
visual, hearing and memory problems. While, women were associated with having sarcopenia,
dynapenia, poor gait speed, cognitive impairment, mental, hearing and memory problems, dementia
and hospitalizations of> 24 h in the last year. Overall, participants with poor lower-limb muscle power
had a signifcantly higher risk of adverse events [in men: odds ratio (OR)= 1.51, 95% confdence
interval (CI) = 1.19–1.91, p < 0.001; in women: OR= 1.52, 95% CI = 1.27–1.87, p = 0.001] than their
stronger counterparts. This study is the frst to describe lower-limb muscle power values and cutof points among a nationally representative sample of Colombian older adults. In men, 7 of the 14
adverse events studied were associated with lower muscle strength, whereas in women, it was 9 of the
14 adverse events. [--]
Materias
Lower body muscle power,
Sit to stand,
Older adults
Publicado en
Scientific Reports (2022) 12:11820
Departamento
Universidad Pública de Navarra. Departamento de Ciencias de la Salud /
Nafarroako Unibertsitate Publikoa. Osasun Zientziak Saila
Entidades Financiadoras
The SABE study is supported by a fund (2013, no. 764) from Colciencias y Ministerio de Salud y la Protección
Social de Colombia.