Running economy of African and Caucasian distance runners

Article Abstract:

This study investigates the physiological differences between African and Caucasian long distance runners. Results indicate that African runners have a greater running economy and can perform as well as Caucasian runners while maintaining a lower level of oxygen consumption.

African Americans, Endurance sports, Runners (Sports)

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Peak oxygen consumption and skeletal muscle bioenergetics in African-American and Caucasian men

Article Abstract:

This study uses arm ergometry and phosphorous-nuclear magnetic resonance spectroscopy to compare oxidative metabolism in skeletal muscle and peak oxygen consumption in African-American and Caucasian men. Results indicate that African-American men had lower peak oxygen consumption levels and lower resting concentrations of phosphocreatine and phosphorous in skeletal muscles.

United States, Usage, Energy metabolism, Aerobic exercises, Striated muscle, Nuclear magnetic resonance spectroscopy, Bioenergetics, Phosphocreatine, Ergometry, African American men, Phosphorus in the body, Phosphorus (Nutrient)

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Optimal time of arrival for performance at moderate altitude (1700 m)

Article Abstract:

This article investigates the optimal amount of time needed to adjust to a moderate altitude before an athletic performance. Findings indicate that the effects of altitude on performance are most severe after six hours, but athletic performance did not completely return to seal level values during the forty-seven hour experiment.

South Africa, Medical examination, Heart beat, Heart rate, Blood, Athletes, Altitude, Influence of, Acclimatization, Acclimatization (Biology), Blood tests

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