Steinberg Susanne Inez, Sammel Mary Dupuis, Harel Brian Tal, Schembri Adrian, Policastro Christopher, Bogner Hillary R, Negash Selamawit, Arnold Steven Edward
Department of Psychiatry, Crozer Chester Medical Center, One Medical Center Boulevard, Upland, PA, USA
Department of Biostatistics and Epidemiology, University of Pennsylvania, Philadelphia, PA, USA.
Am J Alzheimers Dis Other Demen. 2015 May;30(3):290-8. doi: 10.1177/1533317514545615. Epub 2014 Aug 5.
Moderately vigorous physical activity (MVPA) provides a protective affect against cognitive decline and cardiovascular risk factors. Less is known about sedentary pastimes or non exercise physical activity (NEPA) and cognitive performance.
125 healthy adults 65 or older with no clinical evidence of cognitive impairment were enrolled. The CogState computerized neurocognitive battery was administered. Leisure activities were measured using the Community Health Activity Program for Seniors (CHAMPS).
Sedentary pastimes were associated with executive dysfunction (P = 0.01); MVPA with high memory scores (P = 0.05) and NEPA with improved working memory (P = 0.05). Only sedentary pastimes and executive dysfunction retained significance after correction for multiple comparisons. Smoking and alcohol confounded the association of memory with sedentary pastimes and MVPA.
Study highlights: negative impact of sedentary pastimes on executive function, need for additional investigation of sedentary behavior, NEPA, the impact of addictions upon activity in late life.
中等强度的体力活动（MVPA）对认知能力下降和心血管危险因素具有保护作用。关于久坐消遣或非运动性身体活动（NEPA）与认知表现的了解较少。
招募了125名65岁及以上无认知障碍临床证据的健康成年人。使用CogState计算机化神经认知测试组合进行测试。通过老年人社区健康活动计划（CHAMPS）来测量休闲活动。
久坐消遣与执行功能障碍相关（P = 0.01）；中等强度体力活动与高记忆分数相关（P = 0.05），非运动性身体活动与工作记忆改善相关（P = 0.05）。在进行多重比较校正后，只有久坐消遣和执行功能障碍仍具有显著性。吸烟和饮酒混淆了记忆与久坐消遣及中等强度体力活动之间的关联。
研究亮点：久坐消遣对执行功能有负面影响，需要对久坐行为、非运动性身体活动以及成瘾对晚年活动的影响进行进一步研究。
