Short duration small-sided football and to a lesser extent whole body vibration exercise induce acute changes in markers of bone turnover

This is the author accepted manuscript. The final version is available from the publisher via the DOI in this record.We aimed to study whether short-duration vibration exercise or football sessions of two different durations acutely changed plasma markers of bone turnover and muscle strain. Inactive premenopausal women (n=56) were randomized to complete a single bout of short (FG15) or long duration (FG60) small-sided football or low magnitude whole body vibration training (VIB). Procollagen type 1 amino-terminal propeptide (P1NP) was increased during exercise for FG15 (51.6±23.0 to 56.5±22.5µg.l-1, mean±SD, p0.05). An increase in osteocalcin was observed 48h post exercise (p<0.05), which did not differ between exercise groups. C-terminal telopeptide of type 1 collagen was not affected by exercise. Blood lactate concentration increased during exercise for FG15 (0.6±0.2 to 3.4±1.2mM) and FG60 (0.6±0.2 to 3.3±2.0mM), but not for VIB (0.6±0.2 to 0.9±0.4mM) (P<0.05). Plasma creatine kinase increased by 55±63% and 137±119% 48h after FG15 and FG60 (p