1 Wichita State University, KS, USA.
2 Bowling Green State University, OH, USA.
J Appl Gerontol. 2018 Jun;37(6):687-705. doi: 10.1177/0733464816641390. Epub 2016 Apr 1.
The American College of Sports Medicine recommends that to maintain health, adults should engage in 150 min of moderate/vigorous physical activity (MVPA) per week. The purpose of the current study was to investigate the lowest MVPA dose possible to maintain functional fitness. Functional fitness was assessed using the Senior Fitness Test in 101 women (75.0 ± 7.2 years) from two Midwestern communities. Accelerometer determined daily activity level was assessed for 7 days as participants went about their normal daily activities. MVPA was determined via proprietary filtering, and time spent in this intensity was calculated. A 5-day average of time spent in MVPA was organized into four groups. ANOVAs revealed significant differences between activity groups on all functional fitness measures except back scratch and sit and reach. Results indicate that to maintain lower body function in older women, a threshold of 20 min/day of MVPA for 5 days is needed.
美国运动医学学院建议成年人每周进行 150 分钟的中等/剧烈体力活动（MVPA）以保持健康。本研究的目的是探讨维持身体功能健康所需的最低 MVPA 剂量。在两个中西部社区中，有 101 名女性（75.0 ± 7.2 岁）参与了 Senior Fitness Test，以评估身体功能。参与者在进行日常活动时，通过加速度计评估了 7 天的日常活动水平。通过专有过滤法确定 MVPA，并计算在此强度下花费的时间。将 5 天内的 MVPA 时间平均值分为四组。方差分析显示，除后挠和坐前伸外，各组在所有身体功能测量上的差异均有统计学意义。结果表明，为了维持老年女性的下肢功能，需要每天进行 20 分钟的 MVPA，持续 5 天。
