The effects of combining dietary nitrate and pomegranate supplementation on resistance exercise performance
Presentation Type
Poster
Presentation Type
Submission
Keywords
beetroot, ergogenic aid, dietary nitrate, nitric oxide, resistance training
Department
Sports Medicine
Major
Sports Medicine
Abstract
Dietary nitrate supplementation, provided as beetroot juice (BR), can improve explosive exercise performance via increased nitric oxide (NO) bioavailability but whether co-ingesting BR with another antioxidant to induce synergistic effects has yet to be explored. The purpose of this study was to assess whether co-ingesting BR and pomegranate powder enhanced power, force, and velocity during resistance exercise, in healthy, recreationally active males. In a double-blind, randomized crossover design, 15 males were randomly allocated to three conditions to consume: (1) 2 x 70 ml of nitrate-depleted beetroot juice and empty gelatin capsules for placebo (PL+CAP); (2) 2 x 70 ml of nitrate-rich beetroot juice and CAP for BR only (BR+CAP); and (3) 2 x 70 ml of BR and pomegranate powder (POM) for co-ingestion of supplements (BR+POM). Participants reported to the laboratory 5 times over 5-wk. Participants completed a 1 repetition max (1RM) and a familiarization to the exercise protocol. On experimental visits, participants completed a warm up and then a protocol to assess explosive performance using a linear transducer and force plate during vertical countermovement jumps, kneeling explosive push-ups, and back squat. A resting blood sample was drawn for the determination of plasma nitrate and nitrite concentrations. A one way repeated measures ANOVA was used to assess differences in performance markers between conditions. These data have implications for supplementation guidelines and recommendations for enhancing resistance training performance in males.
Faculty Mentor
Dr. Rachel Tan
Funding Source or Research Program
Summer Undergraduate Research Program, Undergraduate Research Fellowship
Location
Waves Cafeteria
Start Date
24-3-2023 2:00 PM
End Date
24-3-2023 4:00 PM
The effects of combining dietary nitrate and pomegranate supplementation on resistance exercise performance
Waves Cafeteria
Dietary nitrate supplementation, provided as beetroot juice (BR), can improve explosive exercise performance via increased nitric oxide (NO) bioavailability but whether co-ingesting BR with another antioxidant to induce synergistic effects has yet to be explored. The purpose of this study was to assess whether co-ingesting BR and pomegranate powder enhanced power, force, and velocity during resistance exercise, in healthy, recreationally active males. In a double-blind, randomized crossover design, 15 males were randomly allocated to three conditions to consume: (1) 2 x 70 ml of nitrate-depleted beetroot juice and empty gelatin capsules for placebo (PL+CAP); (2) 2 x 70 ml of nitrate-rich beetroot juice and CAP for BR only (BR+CAP); and (3) 2 x 70 ml of BR and pomegranate powder (POM) for co-ingestion of supplements (BR+POM). Participants reported to the laboratory 5 times over 5-wk. Participants completed a 1 repetition max (1RM) and a familiarization to the exercise protocol. On experimental visits, participants completed a warm up and then a protocol to assess explosive performance using a linear transducer and force plate during vertical countermovement jumps, kneeling explosive push-ups, and back squat. A resting blood sample was drawn for the determination of plasma nitrate and nitrite concentrations. A one way repeated measures ANOVA was used to assess differences in performance markers between conditions. These data have implications for supplementation guidelines and recommendations for enhancing resistance training performance in males.