Post-prandial changes in measures of fatigue: effect of a mixed or a pure carbohydrate or pure fat meal

Article Abstract:

A study was conducted to analyze the effect of a pure carbohydrate meal, a pure fat meal, or a mixed meal on the different aspects of fatigue in healthy people. Sixteen volunteers from the staff and students of the Queen Mary and Westfield College were tested for central and peripheral fatigue by using visual analysis scale, flicker fusion frequency, visual reaction time, grip strength, wrist ergometry, and plasma free amino acids measurements. Results indicate that both the subjective and objective measures of central and peripheral fatigue are affected by the macronutrient composition of meals.

Health aspects, Carbohydrates, Fat, Fats, Carbohydrates in the body

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Physical measures of recovery from anorexia nervosa during hospitalised re-feeding

Article Abstract:

Ten undernourished patients suffering from anorexia nervosa were examined over an eight-week refeeding period to determine how any body composition changes seen were interrelated with monitored weight increases and observed fitness levels. Results showed that while the patients' lean body and fat mass rose sharply over the two-month refeeding period, their capacity to work remained extremely low. Moreover, the results showed that while weight gains were significant, the severity of undernutrition among the patients was such that physiological recovery was much slower than expected.

Care and treatment, Eating disorders, Anorexia nervosa, Physical fitness, Diet therapy

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A placebo controlled investigation of the effects of tryptophan or placebo on subjective and objective measures of fatigue

Article Abstract:

The ingestion of L-tryptophan leads to greater subjective and central fatigue. This was found in an investigation of the effect of L-tryptophan administration on measures of fatigue in six healthy volunteers. There were no significant changes noted in grip strength following tryptophan ingestion, but a substantial rise in ergometric work output was observed. The latter may be attributed to a reduced perception of discomfort during ergometry.

Tryptophan

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