Sports participation during adolescence: A shift from environmental to genetic factors

Article Abstract:

A twin design was used to assess the relative contribution of genetic and environmental influences on the variation in sports participation of Dutch male and female twins between the ages 13 and 20 year. Findings reveal that environmental factors shared by family members determine sports participation in young adolescence but cease to be of importance in adulthood when individual differences in sports participation are largely due to genetic variation.

Genetic aspects, Athletes, Adolescent behaviour, Adolescent behavior

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Rate and amplitude of adaptation to two intensities of exercise in men aged 65-75 yr

Article Abstract:

The hypothesis that in males aged 65-75 yr when the total amount of work completed is similar in endurance training three times per week for 12 wk at either 50%or 70% peak oxygen uptake [VO(sub 2peak)] there would be no significant difference in time course and amplitude of selected responses is examined.

Health aspects, Aged men, Elderly men

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A perspective: animals, exercise research, and 'Medicine and Science in Sports and Exercise'

Article Abstract:

This article discusses the moral and ethical aspects of using animals in exercise research. Topics include animal cruelty, research ethics and guidelines.

Standards, Ethical aspects, Animal experimentation, Animal welfare, Animal models in research, Animal research models, Research ethics

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