Theodore Towse
Last active: 4/25/2016

Effects of age on human muscle torque, velocity, and power in two muscle groups.

Lanza IR, Towse TF, Caldwell GE, Wigmore DM, Kent-Braun JA
J Appl Physiol (1985). 2003 95 (6): 2361-9

PMID: 12923120 · DOI:10.1152/japplphysiol.00724.2002

The purpose of this study was to test the hypotheses that, under isovelocity conditions, older compared with young humans would 1). be slower to reach target velocity and 2). exhibit a downward shift in the torque-velocity and power-velocity relationships in the ankle dorsiflexor and knee extensor muscles. We studied 12 young (26 +/- 5 yr, 6 men/6 women) and 12 older (72 +/- 6 yr, 6 men/6 women) healthy adults during maximal voluntary concentric contractions at preset target velocities (dorsiflexion: 0-240 degrees /s; knee extension: 0-400 degrees /s) using an isokinetic dynamometer. The time to target velocity was longer in older subjects in the dorsiflexors and knee extensors (both P

MeSH Terms (12)

Adult Aged Aged, 80 and over Aging Female Humans Isometric Contraction Male Middle Aged Movement Muscle, Skeletal Muscle Contraction

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