MMWR Morb Mortal Wkly Rep. 2002 May 17;51(19):412-4.
Regular physical activity reduces the risk for heart disease, diabetes, and high blood pressure; helps in the control of weight; and maintains muscles, joints, and bone strength. Physical activity also might afford additional benefits for adults aged > or = 50 years by increasing coordination and balance, preventing falls, and maintaining independence. Despite these findings, the prevalence of inactivity increases with age, and approximately one third of older U.S. adults are not active during their leisure time. The national health objectives for 2010 include recommendations to increase the proportion of adults who engage in regular, preferably daily, moderate physical activity for > or = 30 minutes per day and vigorous physical activity > or = 3 days per week for > or = 20 minutes per occasion. To evaluate whether health-care providers ask about physical activity among older adults, CDC analyzed data from the 1998 National Health Interview Survey (NHIS). This report summarizes the results of that analysis, which indicate that approximately half of older adults who attended a routine check-up during the previous year reported being asked about physical activity by their health-care providers. To help older adults make lifestyle changes, health-care providers should ask older adults during routine check-ups about their physical activity levels.
经常进行体育活动可降低患心脏病、糖尿病和高血压的风险；有助于控制体重；并维持肌肉、关节和骨骼强度。体育活动还可能通过增强协调性和平衡能力、预防跌倒以及保持独立能力，为年龄≥50岁的成年人带来额外益处。尽管有这些发现，但不活动的患病率会随着年龄增长而增加，并且约三分之一的美国老年人在休闲时间不进行体育活动。2010年的国家健康目标包括一些建议，即增加参与定期（最好是每天）进行至少30分钟中等强度体育活动以及每周至少3天、每次至少20分钟剧烈体育活动的成年人比例。为评估医疗保健提供者是否询问老年人的体育活动情况，美国疾病控制与预防中心（CDC）分析了1998年国家健康访谈调查（NHIS）的数据。本报告总结了该分析结果，结果表明，在上一年接受例行检查的老年人中，约有一半报告称其医疗保健提供者询问过他们的体育活动情况。为帮助老年人改变生活方式，医疗保健提供者应在例行检查时询问老年人的体育活动水平。
