Journal of Physical Fitness and Sports Medicine (Mar 2016)

Optimal exercise protocol for osteogenic response

  • Yoshihisa Umemura

DOI
https://doi.org/10.7600/jpfsm.5.7
Journal volume & issue
Vol. 5, no. 1
pp. 7 – 12

Abstract

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Mechanical loads on the skeleton imposed by exercise increase bone mass and strength. The sensor in the osteocyte that detects mechanical stress, the mechano-sensor, responds to bone strain caused by mechanical loading. Greater magnitude and rate of strain increases osteogenic response, making high-impact exercise, which imposes large and dynamic strain on the skeleton, an effective mode of exercise. However, the sensitivity of the mechano-sensor (mechano-sensitivity) drops after a large number of repetitions performed within an exercise session, which has diminishing returns. It takes several hours or several days to reestablish mechano-sensitivity after the last loading session. It is important to consider the time to recovery of mechano-sensitivity when determining optimal exercise frequency.

Keywords