Changes in Bone Turnover Induced by Aerobic and Anaerobic Exercise in Young Males

Abstract

Physical activity is considered an important factor in attaining bone mass. However, the mechanisms by which exercise affects bone metabolism are not completely understood. The present study was performed to investigate the effects of aerobic and anaerobic exercise on bone turnover. Twenty healthy young males (aged 20 -29 years) were followed through an 8-week program of aerobic (n ‫؍‬ 10) and anaerobic training (n ‫؍‬ 10). Ten age-matched individuals served as controls. Serum bone-specific alkaline phosphatase (BAP), serum osteocalcin (OC), and urinary pyridinoline (Pyd) and deoxypyridinoline (Dpd) were determined as indices of bone metabolism. After 4 weeks of aerobic training, serum BAP and OC ( p < 0.01), and urinary Pyd ( p < 0.001) and Dpd ( p < 0.01) were significantly reduced. After 8 weeks, BAP and OC levels had returned to baseline values, whereas the urinary cross-link excretion remained low. In the anaerobic training group, elevated levels of BAP ( p < 0.05 vs. week 4), OC ( p < 0.05 vs. week 4), and Pyd ( p < 0.01 vs. week 0) were observed after 8 weeks of exercise. Changes in urinary Pyd and Dpd (week 0 vs. week 8) were positively correlated with changes in the mean power level in the Wingate test, a parameter of the anaerobic performance capacity (r ‫؍‬ 0.50 and r ‫؍‬ 0.55, p < 0.01, respectively). In the controls, no significant changes in biochemical markers were observed. We conclude that aerobic and anaerobic training excert different effects on bone metabolism. While aerobic training led to changes compatible with reduced bone resorption activity, anaerobic training seems to result in an overall accelerated bone turnover. Therefore, the impact of physical activity on bone turnover may depend on the kind of exercise performed. (J Bone Miner Res 1998;13:1797-1804)

Concentrated Bovine-Milk Whey Active Protein (CBP) Supplement-Combined Dynamic Flamingo Therapy (DFT) Activates Bone Metabolism and Bone-Related Factors

“…Fujimura et al [31], using resistance exercise, and Woitge et al [32], using aerobic exercise, reported a continuous decrease in DPD, although after a period of time, the subjects reverted back to their baseline values. In other words, DPD exhibits a biological reaction regardless of the type of exercise, and the difference in the regression time is influenced by the intensity of the exercise.…”

Análise de parâmetros bioquímicos séricos e urinários em atletas de meia maratona

“…mostraram que o exercício físico aeró-bico está associado a um perfil lipídico menos aterogê-nico e com um risco cardiovascular reduzido. Durante um treino de resistência, a lipase lipoproteica exerce função regulatória induzindo uma modificação e redistribuição intermolecular do colesterol e suas subfrações, com aumento do HDL-C, que é compatível com os resultados encontrados no presente estudo (21)(22)(23)(24)(25). A análise estatística dos resultados mostra um aumento médio de 10,6% na concentração da lipoproteína de alta densidade (HDL), com concomitante redução nos níveis de triglicérides (23%), LDL (40%) e VLDL (30%).…”

“…A análise estatística dos resultados mostra um aumento médio de 10,6% na concentração da lipoproteína de alta densidade (HDL), com concomitante redução nos níveis de triglicérides (23%), LDL (40%) e VLDL (30%). Essas variações são condizentes com resultados obtidos na literatura, os quais mostraram uma melhora no lipidograma imediatamente após a realização de maratona e na realização de outros exercícios físicos aeró-bicos intensos (22)(23)(24)(25)(26)(27).…”

Prevalência de fatores de risco para doenças crônicas não-transmissíveis: impacto de 16 semanas de treinamento futebolístico em índices do estado nutricional e da aptidão física de praticantes de futebol society

“…In this study, the physical abilities related to health were chosen, considering that the majority of the amateur soccer players predominantly seek the improvement of the physical ability. There is evidence (31,33) that the training programs with exercises conducted at least three times per week for periods longer than six weeks, presented satisfactory responses in the physical performance, especially in the aerobic ability (32) . In the case of the suggested protocol to G1, a training program was used with the purpose to reach an improvement in the nutritional status and in the physical ability related to health, considering the routine sedentary status in which the selected individuals were in.…”