Physical Therapy Postgraduate Program, Federal University of Sao Carlos, Sao Carlos, Brazil.
Escuela de Fisioterapia, Universidad Industrial de Santander, Colômbia.
Age Ageing. 2021 Sep 11;50(5):1616-1625. doi: 10.1093/ageing/afab093.
to investigate whether the combination of dynapenia and abdominal obesity is worse than these two conditions separately regarding gait speed decline over time.
a longitudinal study was conducted involving 2,294 individuals aged 60 years or older free of mobility limitation at baseline (gait speed >0.8 m/s) who participated in the English Longitudinal Study of Ageing. Dynapenia was determined as a grip strength <26 kg for men and <16 kg for women. Abdominal obesity was determined as a waist circumference >102 cm for men and >88 cm for women. The participants were divided into four groups: non-dynapenic/non-abdominal obese (ND/NAO); only abdominal obese (AO); only dynapenic (D) and dynapenic/abdominal obese (D/AO). Generalised linear mixed models were used to analyse gait speed decline (m/s) as a function of dynapenia and abdominal obesity status over an 8-year follow-up period.
over time, only the D/AO individuals had a greater gait speed decline (-0.013 m/s per year, 95% CI: -0.024 to -0.002; P < 0.05) compared to ND/NAO individuals. Neither dynapenia nor abdominal obesity only was associated with gait speed decline.
dynapenic abdominal obesity is associated with accelerated gait speed decline and is, therefore, an important modifiable condition that should be addressed in clinical practice through aerobic and strength training for the prevention of physical disability in older adults.
研究在随时间推移步态速度下降方面，虚弱与腹型肥胖并存是否比这两种情况单独存在更为严重。
这是一项纵向研究，共纳入 2294 名基线时无行动障碍（步态速度＞0.8m/s）且年龄在 60 岁及以上的个体，他们均参与了英国老龄化纵向研究。握力＜26kg 为男性，＜16kg 为女性，以此确定为虚弱。腰围＞102cm 为男性，＞88cm 为女性，以此确定为腹型肥胖。将参与者分为四组：非虚弱/非腹型肥胖（ND/NAO）；仅腹型肥胖（AO）；仅虚弱（D）和虚弱/腹型肥胖（D/AO）。采用广义线性混合模型分析 8 年随访期间，虚弱和腹型肥胖状态对步态速度下降（m/s）的影响。
随时间推移，仅 D/AO 个体的步态速度下降更明显（每年下降-0.013m/s，95%CI：-0.024 至-0.002；P＜0.05），与 ND/NAO 个体相比。虚弱或腹型肥胖均与步态速度下降无关。
虚弱伴腹型肥胖与步态速度下降加速有关，因此是一种重要的可改变的情况，在临床实践中应通过有氧运动和力量训练来预防老年人的身体残疾。
