Association of Lower-Extremity Muscle Performance and Physical Activity Level and Intensity in Middle-Aged and Older Adults: A Doubly Labeled Water and Accelerometer Study
Association of Lower-Extremity Muscle Performance and Physical Activity Level and Intensity in Middle-Aged and Older Adults: A Doubly Labeled Water and Accelerometer Study
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DOI：
10.1007/s12603-020-1449-6
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发表时间：
2020-09-01
影响因子：
5.8
通讯作者：
Tanaka, H.
中科院分区：
文献类型：
--
作者：
Takae, R.;Hatamoto, Y.;Tanaka, H.
目的探讨社区中老年人下肢肌肉功能（LEMP）与体力活动，尤其是体力活动水平（PAL）之间的关系。设计横断面研究。以社区为基础。参与者是54名社区居住和独立的中年和老年人（年龄54-89岁）。通过使用双标记水方法（PALDLW）获得的每个参与者的总能量消耗和估计的基础代谢率来计算身体活动水平。每日步数和强度的体力活动进行了监测与三轴加速度计，LEMP进行了评估，使用五个重复的坐站试验（STS-5）和垂直跳跃（VJ）。结果分别对中老年男性和女性进行分析时，STS-5的结果与PALDLW的结果几乎呈负相关。分别分析中老年男性和女性时，VJ与PALDLW呈正相关。LEMP（如STS-5和VJ）和PAL之间的关系保持不变，无论性别和身体组成。PALDLW与LPA、MVPA和步数呈显著正相关，与久坐时间呈显著负相关。PALDLW与步数的关系描述为以下方程：PALDLW = 0.0000392 x步数+1.531。结论这些研究结果表明，PALDLW是中年和老年人中LEMP增加的关键因素。保持高PALDLW可能是有益的独立生活，并参与娱乐和社会活动中的中年和老年aduls.Objectives本研究的目的是检查是否有下肢肌肉性能（LEMP）和体力活动之间的关系，特别是体力活动水平（PAL）值，在社区居住的中年和老年人。设计横断面研究。以社区为基础。参与者是54名社区居住和独立的中年和老年人（年龄54-89岁）。通过使用双标记水方法（PALDLW）获得的每个参与者的总能量消耗和估计的基础代谢率来计算身体活动水平。每日步数和强度的体力活动进行了监测与三轴加速度计，LEMP进行了评估，使用五个重复的坐站试验（STS-5）和垂直跳跃（VJ）。结果STS-5与PALDLW分别对中老年男性和女性进行分析时，两者的结果几乎呈负相关。分别分析中老年男性和女性时，VJ与PALDLW呈正相关。LEMP（如STS-5和VJ）和PAL之间的关系保持不变，无论性别和身体组成。PALDLW与LPA、MVPA和步数呈显著正相关，与久坐时间呈显著负相关。PALDLW与步数的关系描述为以下方程：PALDLW = 0.0000392 x步数+1.531。结论这些研究结果表明，PALDLW是中年和老年人中LEMP增加的关键因素。维持高PALDLW可能有利于中老年人独立生活，参与娱乐和社交活动。
Objectives The purpose of this study was to examine if there is a relationship between lower-extremity muscle performance (LEMP) and physical activity, especially the physical activity level (PAL) value, in community-dwelling middle-aged and older adults. Design Cross-sectional study. Setting Community-based. Participants Participants were 54 community-dwelling and independent middle-aged and older individuals (aged 54-89 years). Measurements Physical activity level was calculated from the total energy expenditure of each participant obtained using the doubly labeled water method (PALDLW) and estimated basal metabolic rate. Daily step count and intensity of physical activity was monitored with a triaxial accelerometer, and LEMP was assessed using the five-repetition sit-to-stand test (STS-5) and vertical jumping (VJ). Results The results of STS-5 nearly negatively correlated with those of PALDLW when analysing the middle-aged and older man and woman, separately. VJ positively correlated with PALDLW when analysing the middle-aged and older men and woman, separately. The relationship between LEMP (e.g. STS-5 and VJ) and PAL were maintained, regardless of sex and body composition. PALDLW was significantly positively correlated with LPA, MVPA, and steps, and significantly negatively correlated with sedentary time. The relationship PALDLW and steps was described as following equation: PALDLW = 0.0000392 x steps +1.531. Conclusions These findings suggest that PALDLW is a key contributor to increasing LEMP among middle-aged and older adults. Maintaining high PALDLW may be beneficial to independent living, and participation in recreational and social activities in middle-aged and older adults.Objectives The purpose of this study was to examine if there is a relationship between lower-extremity muscle performance (LEMP) and physical activity, especially the physical activity level (PAL) value, in community-dwelling middle-aged and older adults. Design Cross-sectional study. Setting Community-based. Participants Participants were 54 community-dwelling and independent middle-aged and older individuals (aged 54-89 years). Measurements Physical activity level was calculated from the total energy expenditure of each participant obtained using the doubly labeled water method (PALDLW) and estimated basal metabolic rate. Daily step count and intensity of physical activity was monitored with a triaxial accelerometer, and LEMP was assessed using the five-repetition sit-to-stand test (STS-5) and vertical jumping (VJ). Results The results of STS-5 nearly negatively correlated with those of PALDLW when analysing the middle-aged and older man and woman, separately. VJ positively correlated with PALDLW when analysing the middle-aged and older men and woman, separately. The relationship between LEMP (e.g. STS-5 and VJ) and PAL were maintained, regardless of sex and body composition. PALDLW was significantly positively correlated with LPA, MVPA, and steps, and significantly negatively correlated with sedentary time. The relationship PALDLW and steps was described as following equation: PALDLW = 0.0000392 x steps +1.531. Conclusions These findings suggest that PALDLW is a key contributor to increasing LEMP among middle-aged and older adults. Maintaining high PALDLW may be beneficial to independent living, and participation in recreational and social activities in middle-aged and older adults.