Poblete-Valderrama Felipe, Rivera Carol Flores, Petermann-Rocha Fanny, Leiva Ana María, Martínez-Sanguinetti María Adela, Troncoso Claudia, Mardones Lorena, Villagrán Marcelo, Nazar Gabriela, Ulloa Natalia, Martorell Miquel, Díaz-Martínez Ximena, Lanuza Fabián, Garrido-Méndez Alex, Celis-Morales Carlos
Escuela de Kinesiología, Facultad de Salud, Universidad Santo Tomás, Valdivia, Chile.
Escuela de Salud Pública, Facultad de Medicina, Facultad de Medicina, Santiago, Chile.
Rev Med Chil. 2019 Oct;147(10):1247-1255. doi: 10.4067/s0034-98872019001001247.
Lifestyle factors could promote healthy ageing.
To investigate the association between physical activity (PA), sedentary behavior and cognitive impairment in Chilean older adults.
We included 1,390 participants from the National Health Survey (2009-2010). The Mini-Mental State Examination was used to diagnose cognitive impairment. Physical activity and sedentary behavior were assessed with the Global Physical Activity Questionnaire (GPAQ). Logistic regression was performed to investigate the associations.
Compared with older adults with lower levels of PA (< 48 min/day), those with middle (48-248 min/day) and higher (>248 min/day) levels of PA had lower odds for cognitive impairment (Odds ratio (OR): 0.57 [95% confidence intervals (CI): 0.33; 0.82], p < 0.01 and 0.58 [95% CI: 0.32; 0.83], p < 0.01, respectively). Participants who reported spending more than 8 hours/day sitting had a high odds for cognitive impairment compared to those who spent < 4 hours/day (OR: 3.70 [95% CI: 1.37; 6.03], p = 0.01).
Both PA and sedentary behavior were independently associated with cognitive decline independent of major confounding factors in Chilean older adults.
生活方式因素可促进健康老龄化。
调查智利老年人身体活动（PA）、久坐行为与认知障碍之间的关联。
我们纳入了来自全国健康调查（2009 - 2010年）的1390名参与者。采用简易精神状态检查表诊断认知障碍。使用全球身体活动问卷（GPAQ）评估身体活动和久坐行为。进行逻辑回归分析以研究这些关联。
与PA水平较低（<48分钟/天）的老年人相比，PA水平中等（48 - 248分钟/天）和较高（>248分钟/天）的老年人认知障碍的几率较低（优势比（OR）：0.57 [95%置信区间（CI）：0.33；0.82]，p < 0.01和0.58 [95% CI：0.32；0.83]，p < 0.01）。报告每天久坐超过8小时的参与者与每天久坐<4小时的参与者相比，认知障碍的几率较高（OR：3.70 [95% CI：1.37；6.03]，p = 0.01）。
在智利老年人中，PA和久坐行为均与认知衰退独立相关，且不受主要混杂因素影响。
