Enhancement Effects of Tongkat Ali (Eurycoma longifolia) Supplementation on Performance Functions Following Strength Training in Middle-Aged Women

Conference paper


The purpose of the study was to evaluate the effect of strength training and Tongkat Ali (Eurycoma longifolia) supplementation on muscular strength and performance functions in middle-aged women. Thirty-one middle-aged women successfully participated in this study. Participants were screened, matched, and assigned randomly to either experimental (n = 17) or control group (n = 14). Both groups followed a supervised strength training program twice a week for 12 weeks. Experimental group was given 100 mg of Tongkat Ali (Eurycoma Longifolia) for 12 weeks while the control group was given placebo. Participants completed five performance measures: 6-m walk, stair climb, chair rise, lift and reach, and 8 RM leg and chest press. Measurements were conducted pre- and postintervention. Strength was assessed using 8 RM leg and chest press. Mixed between-within ANOVA was utilized to determine the significance change (at a 95 % confidence level (p < 0.05)) of the outcome measures from pre- to post-test and between groups. The results demonstrated statistically significant changes in all the outcome measures in both groups. Significant difference between groups (p < 0.05) was observed only in stair climb. In conclusion, strength training counteracted the age-related decline in muscle strength, while Tongkat Ali supplementation did not enhance muscle strength gain in middle-aged women following a strength training program.


Strength training Strength Performance functions Tongkat Ali 



The authors are grateful to Ida Rosmini Othman of Faculty of Computer Science and Mathematics, UiTM, for the fruitful discussion, to Hasbullah Ismail (FSR), and to all participants in the project. This study was supported by UKM Medical Faculty postgraduate grant and Phytes Biotek Sdn. Bhd.


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Copyright information

© Springer Science+Business Media Singapore 2016

Authors and Affiliations

  1. 1.Faculty of Sport Science and RecreationUniversiti Teknologi MARAShah AlamMalaysia
  2. 2.Physiology Department, Faculty of MedicineUniversiti Kebangsaan MalaysiaBangiMalaysia
  3. 3.Physiology Unit, Faculty of Medicine and Defence HealthNational Defence University of MalaysiaKuala LumpurMalaysia

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