Energy Intake Deficiency Promotes Bone Resorption and Energy Metabolism Suppression in Japanese Male Endurance Runners: A Pilot Study:

摘要: It has been reported that male athletes face increased risk for low energy availability and resulting health consequences similar to female athletes. The present study aimed reveal the status of Japanese runners examine association between deficiency physiological characteristics such as metabolism, bone health, hormonal status. Six collegiate long-distance during a training season participated in this study. Energy intake (EI) was assessed using 3-day dietary records with food pictures. Exercise expenditure (EEE) determined by HR-VO2 method. Body composition were measured dual-energy X-ray absorptiometry. (EA) calculated subtraction EEE from EI normalized fat-free mass (FFM). balance (EB) minus estimated total (TEE). Resting (REE) indirect calorimetry Douglas bag technique, blood sampling conducted assess mean EA subjects 18.9 ± 6.8 kcal/kg FFM/day, severe negative EB (range: -1444 ~ -722 kcal/d) observed. REE four suppressed, moreover, resorption promoted all subjects. data our suggested could promote metabolism suppression endurance runners. Additional short- long-term studies are needed clarify risks caused explore strategies prevent problems related