The Relation Between Serum Leptin Levels and Max VO₂in Male Patients with Type I Diabetes and Healthy Sedentary Males

Abstract

This study aimed at investigating leptin levels in male diabetes type I patients who were on insulin treatment and also healthy sedentary males. The study included 10 male type I diabetes patients and 17 healthy sedentary males. Leptin levels of type I diabetes patients and healthy sedentary males with body mass index (BMI) over 25 kg/m2 were evaluated separately. The relation between serum leptin, max VO2, blood lactic acid levels before and after exercise, and effort durations of participants were investigated. At the end of the tests, no difference was found between leptin levels, max VO2 values, lactic acid values before exercise, and test durations of male type I diabetes patients and healthy sedentary males (p > .05), whereas lactic acid levels after exercise were found to be lower in healthy sedentary males (p < .05). Leptin levels in the group with BMI above 25 kg/m2 were higher than those in the group with BMI below 25 kg/m2 (p < .001). It was also seen that max VO2 values and test durations were higher in the group with BMI below 25 kg/m2 (p < .05). In conclusion, leptin levels of male type I diabetes patients are close to those of healthy sedentary males. The increase in leptin levels in both groups is in proportion to the BMI of individuals.

Plasma Leptin, Plasma Zinc, and Plasma Copper Are Associated in Elite Female and Male Judo Athletes

“…Studies exploring the relationship between plasma zinc and plasma leptin are controversial [5][6][7][8][9][10][11][12][13]. Hypoleptinemia is a common feature observed in many athletes that is associated with energy deficit provoked by exercise [14] and/or by decreased fat mass [11,12].…”

High-Intensity Training Improves Plasma Glucose and Acid-Base Regulation During Intermittent Maximal Exercise in Type 1 Diabetes

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The effect of acute swimming exercise on plasma leptin in rats

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“…There are still points to be clarifi ed about the effects of leptin hormone on physiological mechanisms. The fact that leptin is a topic of interest for many researchers and is studied in various disci- plines indicates that leptin's mechanism of infl uence can be fully brought to light in the near future (21).…”