(-)-Hydroxycitrate ingestion and endurance exercise performance

Area of Science:

• Exercise Physiology
• Nutritional Biochemistry
• Sports Science

Background:

• (-)-hydroxycitrate (HCA) is investigated for its potential ergogenic aid effects.
• HCA inhibits ATP: citrate lyase, potentially increasing fatty acid utilization and reducing lipogenesis.
• Previous research on HCA for exercise performance has yielded mixed results.

Purpose of the Study:

• To evaluate the ergogenic aid effects of (-)-hydroxycitrate (HCA) on endurance exercise performance.
• To explore the mechanism of HCA in promoting fatty acid utilization as an energy source.
• To identify potential synergistic effects with other supplements for enhanced performance.

Main Methods:

• Acute or chronic HCA ingestion was administered.
• Exercise performance was assessed following HCA consumption.
• Fatty acid utilization during moderate-intensity exercise was measured.

Main Results:

• HCA ingestion demonstrated potential for enhancing fatty acid utilization during moderate-intensity exercise.
• The ergogenic effects of HCA on exercise performance were variable, showing both positive and non-significant outcomes.
• HCA's impact on lipogenesis and satiety was noted, though its direct link to performance varied.

Conclusions:

• HCA shows promise in promoting fatty acid utilization, a key factor in endurance exercise.
• The ergogenic effect of HCA alone on exercise performance requires further investigation.
• Co-ingestion of HCA with supplements like carnitine or caffeine may offer superior glycogen-sparing effects compared to HCA alone.