Modeling dynamic skinfold compression

Article Abstract:

Real-time compression of skinfolds has been measured at three sites to evaluate dynamic compression of skinfolds and to suggest a mechanical model of compression that will give quantification of the elasticity and viscosity of the modeled tissues using generation of coeffcients for each component. A skinfold caliper with an added potentiometer was used. Subjects, eight males and eight females, were aged 18-40. After the initial rapid lowering in skinfold thickness an extended plateau phase exists and it has been attributed to relaignment of skin/tissue fibers. It may be the basis of reported skinfold compressibility sex differences.

United States, Canada, Mathematical models, Biological models, Human biology, Compressibility

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Physical fitness, body fatness, and physical activity: the Amsterdam Growth and Health Study

Article Abstract:

Research on the sex-specific relationships between physical fitness and body fatness is presented, with an examination of the effect of physical fitness on these relationships. For this study, body fatness was negatively related to physical fitness and physical activity was positively related to physical fitness; this relationship is evaluated in order to prevent lifestyle-related diseases.

Health aspects, Testing, Exercise physiology, Life style, Lifestyles, Adipose tissues, Adipose tissue

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Adolescent motor skill and performance: is physical activity in adolescence related to adult physical fitness?

Article Abstract:

This article investigates the relationship between adolescent physical activity and exercise levels during adulthood. Findings from a twenty year longitudinal study of four hundred Dutch boys and girls reveal that physical fitness during adolescence is only modestly correlated with adult exercise and fitness levels.

Longitudinal method, Motor ability, Motor skills, Longitudinal studies

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