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. 2021 Oct 27;30(4):678-688.
doi: 10.1123/japa.2021-0066. Print 2022 Aug 1.

Sit-to-Stand Power Across the Lifespan: A Cross-Sectional Analysis

Anthony Campitelli  1 , Sally Paulson  1 , Jennifer Vincenzo  2 , Jordan M Glenn  3 , Joshua L Gills  1 , Megan D Jones  1 , Melissa Powers  4 , Michelle Gray  1
Affiliations

Sit-to-Stand Power Across the Lifespan: A Cross-Sectional Analysis

Anthony Campitelli et al. J Aging Phys Act. .

Abstract

Lower-body power measured by a linear position transducer during the sit-to-stand (STS) movement declines with age and may be a predictor of physical disability in older adults. The purpose of this study was to establish normative data for STS power across the lifespan and to determine if differences exist between age cohorts, sexes, and age cohort-sex subgroups. Adults (N = 557) aged 18-89 were divided into five age cohorts and performed the STS connected to a linear position transducer, which calculated power and velocity during the movement. Significantly lower (p < .01) velocity was observed in a younger age cohort in females than males, whereas males saw a significant average power decrement (p < .01) in a younger age cohort than females. STS power norms give clinicians a metric predicting physical disability and may be of particular interest to males as their power production begins to decline at an earlier age.

Keywords: ADL-specific power; activities of daily living; linear position transducer; normative data; physical disability.

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Figures

Figure 1 —
Figure 1 —
Age cohort group mean average power (left) and peak power (right) by sex. Note. In matrix tables, pairwise comparison difference significance level is denoted as follows: *p < .05, **p < .01, and ***p< .001. Direction of differences can be inferred from bar graphs. Error bar indicates SD.
Figure 2 —
Figure 2 —
Age cohort group mean average velocity (left) and peak velocity (right) by sex. Note. In matrix tables, pairwise comparison difference significance level is denoted as follows: *p < .05, **p < .01, and ***p < .001. Direction of differences can be inferred from bar graphs. Error bar indicates SD.
Figure 3 —
Figure 3 —
Age cohort group mean relative average power (left) and relative peak power (right) by sex. Note. In matrix tables, pairwise comparison difference significance level is denoted as follows: *p < .05, **p< .01, and ***p < .001. Direction of differences can be inferred from bar graphs. Error bar indicates SD.
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