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Title: The efficacy of rooibos Aspalathus linearis as an ergogenic aid during exercise
Authors: Davies, S.E.H. 
Marnewick, Jeanine L 
West, Sacha Jane 
Taliep, Mogammad Sharhidd 
Rautenbach, Fanie 
Gamieldien, Raeeq 
Keywords: Rooibos tea -- Physiological effect;Antioxidants;Athletes -- Nutrition;Dietary supplements;Exercise -- Physiological aspects
Issue Date: 2019
Publisher: Inderscience Enterprises
Source: Davies, S.E.H., Marnewick, J.L., West, S.,Taliep, M.S., Rautenbach, F. & Gamieldien, R. 2019. The efficacy of rooibos Aspalathus linearis as an ergogenic aid during exercise. International Journal of Human Factors and Ergonomics, 6(1):88-102 [10.1504/IJHFE.2019.099585]
Journal: International Journal of Human Factors and Ergonomics 
Abstract: This study investigated whether rooibos herbal tea Aspalathus linearis has an ergogenic effect during a fatiguing arm strength test to exhaustion. Thirty-two male participants were randomised in a single blinded, cross-over placebo controlled study in which they ingested standardised rooibos or placebo capsules for four weeks prior to a fatiguing elbow flexion/extension exercise test entailing five sets/bouts of 15 repetitions of maximum voluntary contractions separated by 10-second rest intervals on a Biodex System 3 at a speed of 60º per second. Peak torque flexion (Nm) was consistently higher in the rooibos experimental (Re) compared to the placebo control (Pc) across the five exercise bouts, and this performance trend during flexion was also seen in the total work (joules) completed, although not significant (P > 0.05). It appears that the antioxidant properties of rooibos, may have contributed to an improvement in physical performance during a maximal isokinetic arm exercise protocol to induce fatigue.
ISSN: 2045-7804
2045-7812 (-e)
DOI: 10.1504/IJHFE.2019.099585
Appears in Collections:Edu - Journal Articles (DHET subsidised)

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