TY - JOUR
T1 - Instrumented Assessment of Physical Activity Is Associated With Muscle Function but Not With Muscle Mass in a General Population
AU - Rojer, Anna G.M.
AU - Reijnierse, Esmee M.
AU - Trappenburg, Marijke C.
AU - van Lummel, Rob C.
AU - Niessen, Martijn
AU - van Schooten, Kim S.
AU - Pijnappels, Mirjam
AU - Meskers, Carel G.M.
AU - Maier, Andrea B.
PY - 2018/10
Y1 - 2018/10
N2 - 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.
AB - 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.
KW - activity monitoring
KW - aged
KW - motor activity
KW - muscle strength
KW - physical performance
KW - sarcopenia
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UR - http://www.mendeley.com/research/instrumented-assessment-physical-activity-associated-muscle-function-not-muscle-mass-general-populat
U2 - 10.1177/0898264317721554
DO - 10.1177/0898264317721554
M3 - Article
C2 - 28737046
SN - 0898-2643
VL - 30
SP - 1462
EP - 1481
JO - Journal of Aging and Health
JF - Journal of Aging and Health
IS - 9
ER -