Abstract Purpose: To investigate acute changes in biochemical markers of bone and cartilage turnover in response to moderate intensity exercise with and without joint impact in healthy human subjects. Methods: A randomized, cross-over, exploratory, clinical study was conducted. Twenty healthy subjects with no history of joint trauma completed 30 min interventions of standardized moderate intensity cycling and running as well as a resting intervention 1 week apart. Blood samples were taken immediately before, four times after exercise and again the next day. Urine was sampled, before, after and the next day. On the day of rest, samples were taken at timepoints similar to the days of exercise. Markers of type I (CTX-I), II (C2M, CTX-II) and VI (C6M) collagen degradation, cartilage oligomeric matrix protein (COMP) and procollagen C-2 (PRO-C2) was measured. Trial registration number: NCT04542655, 02 September 2020, retrospectively registered. Results: CTX-I was different from cycling (4.2%, 95%CI: 0.4-8.0%,
June 22, 2021
Eir K Appl Physiol
Bjerre-Bastos JJ, Nielsen Bay H, Karsdal MA, Bihlet AR, Boesen MP, Inger B, Andersen JR, Mackey AL, Thudium CS
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