ArticleBritish journal of sports medicine2000
Bone mineral density and serum testosterone in chronically trained, high mileage 40-55 year old male runners.
Article in British journal of sports medicine, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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Who cites it
20 citing papers in PubMed.
- Estradiol levels predict bone mineral density in male collegiate athletes: a pilot study.Clinical endocrinology · 2012Trial
- Untargeted Metabolomics and Proteomics-Based Research of the Long-Term Exercise on Human Body.Applied biochemistry and biotechnology · 2025Article
- Comparison of trabecular bone microarchitecture between older males with and without a running habit: A cross-sectional study.Journal of exercise science and fitness · 2025Article
- Unraveling the complexity of the impact of physical exercise on male reproductive functions: a review of both sides of a coin.Frontiers in physiology · 2024Review
- Comparison of bone mineral density of runners with inactive males: A cross-sectional 4HAIE study.PloS one · 2024Article
- One hundred marathons in 100 days: Unique biomechanical signature and the evolution of force characteristics and bone density.Journal of sport and health science · 2022Article
- Relationship Between Ground Reaction Force Characteristics and Bone Mineral Density of the Hip and Spine in Male Runners.International journal of exercise science · 2022Article
- Why exercise has a crucial role in cancer prevention, risk reduction and improved outcomes.British medical bulletin · 2021Review
- Endurance running prevents the age-related decline of calcaneal bone stiffness.Archives of osteoporosis · 2021Article
- Various Factors May Modulate the Effect of Exercise on Testosterone Levels in Men.Journal of functional morphology and kinesiology · 2020Review
- Examining Bone, Muscle and Fat in Middle-Aged Long-Term Endurance Runners: A Cross-Sectional Study.Journal of clinical medicine · 2020Article
- Effect of a 6-week supervised detraining period on bone metabolism markers and their association with ergometrics and components of the hypothalamic-pituitary-gonadal (HPG) axis in professional male soccer players.Journal of bone and mineral metabolism · 2019Article
- Comparison of Muscle Function, Bone Mineral Density and Body Composition of Early Starting and Later Starting Older Masters Athletes.Frontiers in physiology · 2019Article
- Exercise-induced biochemical changes and their potential influence on cancer: a scientific review.British journal of sports medicine · 2017Review
- Low Energy Availability in Exercising Women: Historical Perspectives and Future Directions.Sports medicine (Auckland, N.Z.) · 2017Review
- Exercise, Training, and the Hypothalamic-Pituitary-Gonadal Axis in Men and Women.Frontiers of hormone research · 2016Review
- Mitochondrial adaptations evoked with exercise are associated with a reduction in age-induced testicular atrophy in Fischer-344 rats.Biogerontology · 2014Review
- Aging and exercise training reduce testes microvascular PO2 and alter vasoconstrictor responsiveness in testicular arterioles.American journal of physiology. Regulatory, integrative and comparative physiology · 2011Article
- Proximal tibia volumetric bone mineral density is correlated to the magnitude of local acceleration in male long-distance runners.Journal of applied physiology (Bethesda, Md. : 1985) · 2010Article
- BONE MINERAL DENSITY AND BODY COMPOSITION IN ELDERLY RUNNERS: SIX-YEAR FOLLOW-UP.Acta ortopedica brasileiraArticle
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4 authors.
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No grant is acknowledged in the PubMed record.
Abstract
objectivesTo identify physical activity that is beneficial for the maintenance of bone strength with increasing age by examining the relation between bone mineral density (BMD) and chronic endurance training in men. BMD at the proximal femur, its subregions, and the lumbar spine, and serum testosterone were compared between two groups of long distance runners with more than 20 years of training experience and non-athletic controls.
methodsRunners (n = 12) were divided into (a) high volume runners (n = 7), running 64-80 km a week, and (b) very high volume runners (n = 5), running more than 95 km a week, and compared with non-athletic male controls, exercising in non-endurance oriented activities two to four times a week. BMD (g/cm2) at the total proximal femur, femoral neck, trochanteric region, and lumbar spine was measured by dual energy x ray absorptiometry. Total testosterone (nmol/l) and free testosterone (pmol/l) in serum were measured by radioimmunoassay from single fasting blood samples.
resultsHeight, weight, and age (range = 40-55 years) were not significantly different between groups. The high volume runners had significantly higher BMD at the total proximal femur (1.09 (0.17) v 0.94 (0.056)), femoral neck (0.91 (0.16) v 0.78 (0.071)), and trochanteric region (0.85 (0.14) v 0.73 (0.053)) than controls (p<0.05). The differences in BMD for the proximal femur between the very high volume runners and the other two groups were not significant. There was no difference in lumbar spine BMD, total testosterone, or free testosterone between groups. However, there was a significant negative correlation between total testosterone (r = -0.73, p<0.01) and free testosterone (r = -0.79, p<0.005) and running volume in the distance runners.
conclusionsLong term distance running with training volumes less than 80 km a week had a positive effect on BMD of the proximal femur. With running volumes greater than 64 km a week, training was inversely related to testosterone levels, but levels remained within the normal range.
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