Circulating adiponectin concentration and body composition are altered in response to high-intensity interval...

Area of Science:

• Sports Science
• Endocrinology
• Exercise Physiology

Background:

• Adiponectin plays a role in metabolic adaptations beneficial for endurance athletes.
• Limited research exists on adiponectin response to exercise and training in athletes.

Purpose of the Study:

• To investigate plasma adiponectin response to acute exercise after two distinct training programs.
• To assess the impact of these training programs on athlete body composition.

Main Methods:

• Seven state-level rowers participated in a randomized crossover study.
• Participants underwent incremental graded exercise tests before and after 4 weeks of high-intensity interval training and traditional ergometer rowing training.
• Body composition was measured at baseline and post-training.

Main Results:

• Maximal exercise significantly increased plasma adiponectin post-high-intensity interval training (p=0.016), but not after traditional training (p=0.69).
• High-intensity interval training led to significant improvements in 4-minute power output (p=0.002), VO2peak (p=0.05), and reduced body fat percentage (p=0.022).
• Traditional training did not result in significant changes in power output, VO2peak, or body fat percentage.

Conclusions:

• Four weeks of high-intensity interval training enhances adiponectin response to maximal exercise and improves body composition in rowers.
• Adiponectin changes may serve as an indicator of positive training adaptations and performance levels in athletes.