Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
Androit-APP Journal of Sports Science and Medicine
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©Journal of Sports Science and Medicine (2006) 05, 60 - 69

Research article
Effects of Creatine, Ginseng, and Astragalus Supplementation on Strength, Body Composition, Mood, and Blood Lipids During Strength-Training in Older Adults
Michael E. Rogers,1 , Ruth M. Bohlken1, Michael W. Beets1, Steve B. Hammer1, Tim N. Ziegenfuss2, Nejc Šarabon3
Author Information
1 Center for Physical Activity and Aging, Department of Kinesiology and Sport Studies, Wichita State University, Wichita, USA
2 Ohio Research Group, Wadsworth Medical Center, Wadsworth, OH, USA
3 Institute of Clinical Neurophysiology, Clinical Medical Center, Institute of Kinesiology, Faculty of Sport, University of Ljubljana, Ljubljana, Slovenia

Michael E. Rogers
✉ 110 Heskett Center, Department of Kinesiology and Sport Studies, Wichita State University, Wichita, KS 67260-0016, USA
Email: michael.rogers@wichita.edu
Publish Date
Received: 17-08-2005
Accepted: 20-12-2005
Published (online): 01-03-2006
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ABSTRACT

The effects of supplemental dietary creatine and a botanical extract consisting of ginseng and astragalus were evaluated in 44 adults aged 55-84 years participating in a 12-week strength-training program. Participants consumed creatine only (Cr), creatine plus botanical extract (CrBE), or placebo (PL), and performed bench press, lat pull down, biceps curl, leg press, knee extension, and knee flexion for 3 sets of 8-12 reps on 3 days per week for 12 weeks. The 1-repetition maximum for each exercise, body composition (full-body DEXA), blood lipids, and mood states were evaluated before and after the intervention. Training improved (p < 0.05) strength and lean mass for all groups, however greater gains were observed with Cr and CrBE compared with placebo (but no difference was found between Cr and CrBE). Only CrBE improved blood lipids and self-reported vigor, and the CrBE group lost significantly more body fat and gained more bench press strength than Cr. These results indicate that strength and lean mass gains achieved by older adults participating in a strength training program can be enhanced with creatine supplementation, and that ginseng and astragalus may provide additional health and psychological benefits. However, these herbs do not appear to have an additive effect on strength and lean mass gains during training.

Key words: Exercise, aging, creatine loading, strength training, dietary supplements


           Key Points
  • Strength and lean mass can be enhanced with creatine supplementation in older adults participating in a strength training program
  • Ginseng and astragalus do not appear to provide any additive effect on strength or mass
  • Ginseng and astragalus may provide additional health and psychological benefits such as lowering cholesterol levels and improving self-reported levels of vigor
 
 
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