Plasma catecholamine and blood lactate responses to incremental arm and leg exercise

Article Abstract:

Blood lactate and plasma catecholamine responses to incremental leg and arm exercise have been studied in seven untrained male subjects. Results support the hypothesis that an increase in plasma epinephrine concentration (Epi) may contribute to the breakpoint in blood lactate that takes place in incremental exercise. The breakpoint in plasma (Epi) changed in the same ways at the same time as did the thresholds for blood lactate with the mode of exercise, arm or leg, not a factor.

Canada, Exercise, Exercise physiology, Lactic acid, Muscles, Noradrenaline, Norepinephrine, Sports medicine, Epinephrine, Catecholamine metabolism

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Reliability of MAOD measured at 110% and 120% of peak oxygen uptake for cycling

Article Abstract:

This article examines the reliability of maximal accumulated oxygen deficit measurements obtained in untrained subjects during exhaustive cycling tests. Findings indicate that measures of maximal accumulated oxygen deficit taken at levels above peak oxygen uptake are reliable in both female and male subjects.

Statistical Data Included, Usage, Measurement, Oxygen, Oxygen in the body, Exercise tests, Sex differences

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Maximal leg-strength training improves cycling economy in previously untrained men

Article Abstract:

A study examined cycling economy before and after 8 wk of maximal leg-strength training. It is concluded that maximal leg-strength training improves cycling economy in previously untrained subjects.

United States, Health aspects, Oxygen consumption, Oxygen consumption (Metabolism), Athletes

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