The effect of ginseng supplementation on anabolic index, muscle strength, body composition, and testosterone and cortisol response to acute resistance exercise in male bodybuilders
| Autor: | F. Moradi, E. Azizi |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
medicine.medical_specialty
Anabolism business.industry Repeated measures design 030209 endocrinology & metabolism 030229 sport sciences Bench press 03 medical and health sciences Ginseng 0302 clinical medicine Waist–hip ratio Endocrinology Internal medicine Medicine Orthopedics and Sports Medicine business Leg press Body mass index Testosterone |
| Zdroj: | Science & Sports. 36:383-389 |
| ISSN: | 0765-1597 |
| DOI: | 10.1016/j.scispo.2020.09.010 |
| Popis: | Summary Aims Bodybuilders are among the athletes who are more likely to take nutritional supplements such as ginseng. The aim of this study was to investigate the effect of ginseng supplementation on anabolic index, muscle strength, body composition, and testosterone (T) and cortisol (C) response to acute resistance exercise in male bodybuilders. Methods In a pretest–posttest control group design, twenty male bodybuilders were randomly divided into two experimental (EG, n = 10) and control (CG, n = 10) groups. The assessments were carried out in three stages: pre-supplementation (Pre-S), post-supplementation (Post-S), and post-exercise (Post-Ex = after a bodybuilding exercise session as acute resistance exercise). General characteristics of subjects, muscle strength, body composition and blood levels of T and C were measured. The supplementation period was six weeks (two ginseng capsules, twice daily, times of ingestion). The CG group also consumed similar capsules containing starch. Analyses of variances with repeated measures were used to test the significance of changes of variables between three stages of the assessment. P Results Ginseng supplementation has no significant effects on C (P = 0.059), anabolic index (T/C ratio, P = 0.463), body mass index (P = 0.182), waist to hip ratio (P = 0.828), and muscle strength (bench press P = 0.684, leg press P = 0.717), while it significantly decreased T levels after acute resistance exercise (EG: Pre-S 4.87 ± 2.54, Post-S 4.80 ± 2.46, Post-Ex 4.17 ± 2.85 ng/mL, CG: Pre-S 4.15 ± 1.36, Post-S 3.73 ± 1.30, Post-Ex 4.46 ± 1.40 ng/mL, P = 0.026) in male bodybuilders. Conclusion It does not appear that six weeks ginseng supplementation simultaneously with bodybuilding exercises has an extra effect on anabolic index, muscle strength and body composition in male bodybuilders, but it does have a decreasing effect on T levels response to acute resistance exercise. |
| Databáze: | OpenAIRE |
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