Prevalence and factors associated with dynapenia in older women using different diagnostic criteria

Abstract

This study aimed to identify the prevalence and factors associated with dynapenia in older women, considering different cutoff points as diagnostic criteria. Methods: This epidemiological study was conducted with 205 older women (72.7 ± 7.1 years). Dynapenia was diagnosed using the handgrip strength test (HGS) using two cutoff points (< 16 or < 20 kgf). Socio-demographic, behavioral, and health status information was obtained from a specific form; nutritional status was assessed by body mass index, and the International Physical Activity Questionnaire identified the level of physical activity. Results: The prevalence of dynapenia was 14.1% (HGS < 16 kgf) and 46.3% (HGS < 20 kgf) (p < 0.001). It was also observed that older women with family income ≤ 1 minimum wage and those with low weight presented, respectively, 2.22 (95%CI: 1.12-4.39) and 4.72 (95%CI: 1.64-13.58) times higher probability of dynapenia identified by HGS < 16 kgf. Moreover, for the cutoff point < 20 kgf, the probability of dynapenia was higher in women aged ≥ 80 years (PR:1.91; 95%CI: 1.23-2.95), in insufficiently active women (PR: 1.34; 95%CI: 1.01-2.57), among those with low weight (PR: 1.61; 95%CI: 1.01-2.57), and in those who reported falls (PR:1.42; 95%CI: 1.04-1.96). Conclusion: Therefore, it is concluded that there is a difference between the prevalence and factors associated with dynapenia when different cutoff points are adopted.

Indicadores de estado nutricional e desempenho funcional em idosos conforme a trajetória de sintomas depressivos

“…No presente estudo, após os três anos de seguimento, observou-se que no sexo feminino as reduções significativas notadas nos indicadores CP, MMT e pior desempenho no teste de caminhada, provavelmente, não foram suscitadas pelos sintomas depressivos, mas relacionadas ao próprio processo de envelhecimento, visto que com o passar dos anos observa-se uma redução no número e nas áreas de secção transversa das fibras musculares, principalmente nas do tipo II, resultando em perdas progressivas da massa muscular 28,29,30 . Estima-se que, no sexo feminino, a perda de massa muscular seja em média 3,7% por década, o que reflete nos baixos níveis de aptidão muscular 31 .…”

Habitual physical activity and sedentary behavior as predictors of dynapenia in older adults: a cross-sectional study

“…17 There is robust evidence about the connection of the strong impact of habitual physical activity (HPA) and sedentary behavior (SB) on the level of muscle fitness, throughout aging, such that older adults with insufficient levels of physical activity and high exposure to SB demonstrate less strength. 11,19,20 Therefore, the hypothesis is verified that time spent in HPA, considering different dimensions, such as activities, work, commuting and leisure and the time of sedentary behavior, quantified by validated instruments, such as the International Physical Activity Questionnaire (IPAQ) 21,23 are presented as a possible strategy to be used for screening muscle weakness in older adults.…”

“…8 In the Brazilian older adults population, prevalence of dynapenia is estimated to be approximately 16.60%-25.80% in older men and 17.70%-34.40% in older women. 10 This situation leads to an adverse epidemiological scenario, considering the implications provided by dynapenia, for the health of older adults, such as greater probabilities of falls, 11 fractures, 12 institutionalization and hospitalization. 13 This outcome is also an important component of frailty syndrome and sarcopenia.…”

“…This situation leads to an adverse epidemiological scenario, considering the implications provided by dynapenia, for the health of older adults, such as greater probabilities of falls, 11 fractures, 12 institutionalization and hospitalization. 13 This outcome is also an important component of frailty syndrome and sarcopenia.…”