Influence of Dietary Nitrate Supplementation on Physical Performance and Body Composition Following Offseason Training in Division I Athletes
Townsend JR, Hart TL, Haynes JT, Woods CA, Toy AM, Pihera BC, Aziz MA, Zimmerman GA, Jones MD, Vantrease WC, Gonzalez AM
Journal of dietary supplements · 12 citas
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Cómo se estudió
- Diseño
- Ensayo controlado aleatorizado (indexado por PubMed)
- Estudiado en
- Personas
- Resultado principal
- Marcadores de salud y funcionamiento
- Consumo medido con
- No se indica
Quién lo pagó
- Financiación
- Financiación no declarada
Publicación
- Publicado
- 2021-03-23 · J Diet Suppl · vol. 19 · número 4 · págs. 534–549
- Editorial
- Taylor & Francis
- Citado
- 14 citas · más que el 88% de estudios similares · 2.3× el promedio de su campo
- Referencias
- 48 trabajos
- Acceso
- De pago
- Áreas de investigación
- Cardiovascular and exercise physiology · Muscle metabolism and nutrition · Sports Performance and Training
- Palabras clave
- Bench press, Athletes, Medicine, Anaerobic exercise, Animal science, Physical therapy, Leg press, Repeated measures design, Heart rate, Dietary Nitrate, Time trial, Placebo, Blood pressure, Internal medicine, Resistance training, Nitrate, Chemistry, Nitrite, Biology, Mathematics
- MeSH
- muscle, skeletal, humans, nitrates, body composition, dietary supplements, male, muscle strength, resistance training, athletes, physical functional performance
11 autores
- Jeremy R. Townsend
- Tricia L. Hart🇺🇸Lipscomb University
- James T. Haynes🇺🇸Lipscomb University
- Clint A. Woods🇺🇸Lipscomb University
- Ann M. Toy🇺🇸 · autor de correspondenciaLipscomb University
- Bailey C. Pihera🇺🇸Lipscomb University
- Marko A. Aziz🇺🇸Lipscomb University
- Grace A. Zimmerman🇺🇸Lipscomb University
- Megan D. Jones🇺🇸Lipscomb University
- William C. Vantrease🇺🇸Lipscomb University
- Adam M. Gonzalez🇺🇸Hofstra University
Resumen
El texto original del estudio, en el idioma en que se publicó.
Purpose: To determine the effects of dietary nitrate supplementation, in the form of red spinach extract (RSE), on adaptations to offseason training in collegiate athletes.Methods: Sixteen Division I male baseball athletes (20.5 ± 1.7y, 90.4 ± 0.5 kg) enrolled in this study and were randomized into a RSE (n = 8) or placebo (n = 8; PL) group. Athletes completed an 11-week resistance training program during the offseason, which consisted of 2-3 workouts per week of upper and lower-body exercises and baseball-specific training. Athletes consumed a RSE (2 g; 180 mg nitrate) or PL supplement daily for the entire offseason training program. Pre and post-training, all athletes underwent one-repetition maximum (1RM) strength testing for the bench press and completed a Wingate anaerobic cycle test (WAnT). Body composition analysis was completed via a 4-compartment model, as well as muscle thickness (MT) measurement of the rectus femoris (RF) and vastus lateralis (VL) via ultrasonography. Resting heart rate and blood pressure (BP) were also obtained. Separate repeated measures analyses of variance were used to analyze all data.Results: Significant (p ≤ 0.05) main effects for time were observed for improved bench 1RM, fat-free mass, body fat percentage, RF MT, and VL MT. No significant group x time interactions (p > 0.05) were found for any measure of performance, body composition, or cardiovascular health. However, a trend for improved peak power in the WAnT was observed (p = 0.095; η2=0.200).Conclusions: These data suggest that daily RSE supplementation had no effect on performance, body composition, or cardiovascular measures in male Division I baseball players following offseason training.
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