Acute effects of physical exercise on the deformational behavior of articular cartilage and changes in cartilage oligomeric matrix protein (COMP) are definite. However, conclusive positive effects of fitness exercise on functional adaptation of articular cartilage have not been proved.Therefore, in this parallel-group randomized control trial, the investigators tested the hypothesis that adequate amount of physical exercise with enough impact would be able to stimulate the functional behavior of articular cartilage. The investigators evaluated 44 healthy males for their physical fitness levels and their blood samples were obtained before, immediately after and 0.5 h after a 30-min walking exercise. Thereafter, participants were assigned to the running, the cycling, the swimming and the control groups. At the end of 12-weeks of intervention, same measurement procedures were applied. Mixed repeated-measures ANOVA design was used for statistics. (Level of evidence: 2)
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Changes in Serum COMP Accumulation, Triggered by Acute Exercise, After 12 Weeks of Different Regular Exercises
Timeframe: Baseline and 12 weeks