Abstract
OBJECTIVES: Self-reported physical activity has shown to affect muscle-related parameters. As self-report is likely biased, this study aimed to assess the association between instrumented assessment of physical activity (I-PA) and muscle-related parameters in a general population.
METHOD: Included were 156 young-to-middle-aged and 80 older community-dwelling adults. Seven days of trunk accelerometry (DynaPort MoveMonitor, McRoberts B.V.) quantified daily physical activity (i.e., active/inactive duration, number and mean duration of active/inactive periods, and number of steps per day). Muscle-related parameters included muscle mass, handgrip strength, and gait speed.
RESULTS: I-PA was associated with handgrip strength in young-to-middle-aged adults and with gait speed in older adults. I-PA was not associated with muscle mass in either age group.
DISCUSSION: The association between I-PA and muscle-related parameters was age dependent. The lack of an association between I-PA and muscle mass indicates the relevance of muscle function rather than muscle mass.
| Original language | English |
|---|---|
| Pages (from-to) | 1462-1481 |
| Number of pages | 20 |
| Journal | Journal of Aging and Health |
| Volume | 30 |
| Issue number | 9 |
| Early online date | 24 Jul 2017 |
| DOIs | |
| Publication status | Published - Oct 2018 |
Funding
The authors disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This study was supported by the PANINI program (Horizon 2020, Marie Curie, Sklodowska, Innovative Training Network, No. 675003) and PreventIT (European Union’s Horizon 2020 Research and Innovation Program, No. 689238).
| Funders | Funder number |
|---|---|
| European Union’s Horizon 2020 research and innovation program | 689238 |
| PreventIT | |
| Marie Curie | 675003 |
Keywords
- activity monitoring
- aged
- motor activity
- muscle strength
- physical performance
- sarcopenia