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Selected herbals and human exercise performance.

L R Bucci1

  • 1Weider Nutrition International, Salt Lake City, UT 84104-4726, USA. lukeb@weider.com

The American Journal of Clinical Nutrition
|August 2, 2000
PubMed
Summary
This summary is machine-generated.

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Herbs like Asian ginsengs can enhance physical performance, especially in older adults, with standardized extracts and longer studies. Many other herbs lack scientific evidence for performance benefits.

Area of Science:

  • Herbal medicine
  • Exercise physiology
  • Sports science

Background:

  • Herbal remedies have a long history of use for enhancing physical performance.
  • Scientific investigation using controlled clinical trials is a more recent approach to validate these effects.

Purpose of the Study:

  • To review the scientific evidence for the efficacy of various herbs used for physical performance enhancement.
  • To identify factors influencing the effectiveness of herbal ergogenic aids.

Main Methods:

  • Review of controlled clinical trials and scientific literature on herbs purported to enhance physical performance.
  • Analysis of study conditions, dosages, and subject characteristics associated with positive outcomes.

Main Results:

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  • Asian ginsengs showed benefits in exercise performance under specific conditions (standardized extracts, >8 wk duration, >1 g/day dose, older subjects).
  • Documented improvements include muscular strength, maximal oxygen uptake, work capacity, and psychomotor skills.
  • Siberian ginseng yielded mixed results, and mahuang/ephedra were effective only with caffeine.

Conclusions:

  • Standardized Asian ginseng extracts show promise for improving physical performance in older adults.
  • Many commonly used herbs lack sufficient scientific evidence and require further rigorous testing.
  • Future research should focus on standardized compounds, dose-response relationships, and appropriate experimental designs.