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Updated: Jun 12, 2026

Using Real-Time Cell Metabolic Flux Analyzer to Monitor Osteoblast Bioenergetics
Published on: March 1, 2022
Bone formation is increased to a greater extent than bone resorption during a cycling stage race
Pamela S Hinton1, Anna Rolleston, Nancy J Rehrer
1Department of Nutritional Sciences, University of Missouri, Columbia, MO 65211, USA. hintonp@missori.edu
Abstract:
This study examined the effects of participation in the Tour of Southland, a 6-day bicycle race, on serum markers of bone turnover in 5 elite male cyclists. During the race, energy intake matched expenditure. Osteocalcin was increased approximately 300% on days 1-5; and C-terminal telopeptide of type I collagen was elevated (43%) on day 3. Participation in a cycling stage race does not appear to have deleterious effects on bone turnover.
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