Plasma Adiponectin Response to Sculling Exercise at Individual Anaerobic Threshold in College Level Male Rowers

Abstract

The purpose of the investigation was to study plasma adiponectin response to a single exercise session in male rowers. Eight college level, single scull rowers (V·O_2max: 5.01 ± 0.43 l · min^-1; age: 21.5 ± 4.5 yrs; height: 184.9 ± 5.0 cm; body mass: 78.5 ± 8.4 kg; body fat: 11.8 ± 1.2 %) participated in this study. Venous blood samples were obtained before, immediately after, and following the first 30 min of recovery of constant load on-water rowing over a distance of 6.5 km (≈ 30 min) at the individual anaerobic threshold (75.2 ± 2.9 % of V·O_2max). Adiponectin was unchanged (p > 0.05) immediately after the exercise. However, adiponectin was significantly increased above the resting value after the first 30 min of recovery (+ 14.7 %; p < 0.05). Similarly, leptin was unchanged immediately after exercise and was significantly decreased after the first 30 min of recovery (- 18.2 %; p < 0.05). Plasma insulin was significantly reduced immediately after exercise and remained significantly lower during the first 30 min of recovery period. Glucose increased with exercise and returned to the pre-exercise level after the first 30 min of recovery. Basal adiponectin was significantly related to V·O_2max (r = - 0.62; p = 0.034). However, there was no relationship between basal adiponectin and other measured variables. Similarly, basal leptin demonstrated no relationship with other measured variables. In conclusion, the results of the present study suggest that plasma adiponectin is sensitive in the first 30 min of recovery to the effects of relatively short-term exercise at individual anaerobic threshold when all major muscle parts are involved.

Key words

Adiponectin - leptin - muscle mass - acute exercise - anaerobic threshold - rowing

References

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