|Year : 2016 | Volume
| Issue : 20 | Page : 139-142
Review ergogenic effect of long jack, Eurycoma Longifolia
Thasanee Khanijo1, Wannee Jiraungkoorskul2
1 Mahidol University International College, Mahidol University, Salaya Campus, Nakhon Pathom, Thailand
2 Department of Pathobiology, Faculty of Science, Mahidol University, Bangkok, Thailand
|Date of Web Publication||14-Nov-2016|
Department of Pathobiology, Faculty of Science, Mahidol University, Bangkok 10400
Source of Support: None, Conflict of Interest: None
| Abstract|| |
Eurycoma longifolia (family: Simaroubaceae) is commonly distributed in the Southeast Asia and Indo-China. In particular, the aqueous extract and decoction of its root are a well-known folk medicine which enhances sexuality, fertility, and antiaging. Furthermore, it has been shown to possess anti-inflammatory, antimalarial, antimicrobial, and antioxidant properties. Its common phytochemical components include alkaloids, flavonoids, phenolics, saponins, tannins, and triterpenes. This plant is rich in various quassinoids including eurycolactone, eurycomalactone, eurycomanol, eurycomanone, and eurycomaoside all of which has been reported to contribute to its remedial properties including increased muscle strength, endurance in cycling time, and reduced anxiety and stress. Based on established literature on the health benefits of E. longifolia, this review article has attempted to compile E. longifolia to be one of the choices of ergogenic plants.
Keywords: Ergogenic aids, Eurycoma longifolia, exercise, herb, plant, traditional medicine
|How to cite this article:|
Khanijo T, Jiraungkoorskul W. Review ergogenic effect of long jack, Eurycoma Longifolia. Phcog Rev 2016;10:139-42
| Introduction|| |
An ergogenic aid is defined as any means of enhancing energy utilization, including energy production, control, and efficiency. It has been classified into five categories: (i) Mechanical aid such as lightweight racing shoes, streamlined swimsuits, and solid disc wheels; (ii) psychological aid such as hypnosis; (iii) physiologic aid such as sodium bicarbonate; (iv) pharmacologic aid such as androgenic steroid supplement; and (v) nutritional aid such as carbohydrate supplement  and fluid replacement. An ethnobotanical survey of sports or exercise performance among tribal people in several countries was reported, for example, human performance from Canadian and American temperate biome  and wrestling in Kabye land of Togo. Humans consume herbs to enhance their long-term endurance performance (e.g., in cycling, running, and swimming), to induce muscle strength (e.g., weightlifting and wrestling), or to reduce fatigue in sports events. The following herbs in [Table 1] are currently used to enhance physical performance with regards to scientific evidence of the effect.
The present review explores scientific evidence to provide updated information about the properties of Eurycoma longifolia, one of the ergogenic plants that is being investigated for its diverse exercise performance.
E. longifolia is a medium-sized slender shrub that can reach 10–15 m in height and is often unbranched. They have compound leaves which are 20–40 cm long and are crowded at the tip of the branches. Each compound leaf consists of 20–40 leaflets, ovate-lanceolate, sessile or nearly and are opposite. The flowers are dioecious, with male and female flowers on different trees; they are produced in large panicles, each flower having 5–6 very small petals. The fruit is green when ripened, blackish-red in color, 1–2 cm long, and 0.5–1.2 cm broad.
The taxonomy of E. longifolia is in the Kingdom (Plantae), division (Magnoliophyta), class (Magnoliopsida), order (Sapindales), family (Simaroubaceae), genus (Eurycoma), and species (E. longifolia). The plant genus Eurycoma is a small genus of the family Simaroubaceae, which is comprised three species: Eurycoma apiculate, Eurycoma harmandiana, and E. longifolia, which are distributed across tropical and subtropical regions.
E. longifolia, an herbal medicinal plant, originated from the Southeast Asia including Cambodia, Indonesia, Laos, Malaysia, Myanmar, Thailand, and Vietnam., The vernacular names of E. longifolia include long Jack (English); bidara laut and pasak bumi (Indonesian); babi kurus (Japanese); penawar pahit, bedara merah, lempedu pahit, and tongkat ali (Malayalam); piak and tung saw (Thai); and cay ba benh, hau phat, and bba binh (Vietnamese).,,
Its active phytochemical substance are as follows: (1) Quassinoids  including eurycomanol, eurycolactones A, eurycolactones B, eurycolactones C, eurycolactone D, eurycolactone E, eurycolactone F, hydroxylongilactone, dehydroklaineanone, 15β-O-acetyl-14-hydroxyklaineanone, eurycomalactone,, eurycomanone,, and eurycomaoside. (2) Alkaloids including β-carboline alkaloid,, cathine-6-one alkaloids. (3) Triterpenes including tirucallane and eurylene. (4) Propanoids including scopolin and propan. (5) Biphenylneolignans.
The traditional uses or phytochemical properties of E longifolia from several literature reviews are antianxiety,, antibacterial,, 29, ,, anticancer,,,, antifungal, anti-inflammation,,,, antimalarial,,,, antioxidant, antiparasitic, antiulcer, ergogenic activities,, and reproductive improvement.,,,,,
Ergogenic Property of Eurycoma Longifolia
Kiew et al. evaluated the effects of “AgroMas ®” a herbal drink available in the Malaysian market on endurance performance during cycling exercise in young cyclists (n = 9, age 16.2 ± 0.5 years old). The compositions of this herbal drink per 100 ml are 0.1 mg E. longifolia, 2.0 mg Cinnamomum cassia, 2.9 mg calcium, 1.1 mg sodium, and 0.9 mg potassium. The subjects exercised on a cycle ergometer at 71.9 ± 0.7% of maximal oxygen consumption until exhaustion on two occasions at 1-week intervals. During each exercise bout, participants received 3 ml/kg body weight of herbal drink or colored water placebo every 20 min in a double-blind, randomized study design. Endurance cycling time was 3.4% longer with the herbal drink compared with placebo, 83.7 ± 4.6 min versus 81.5 ± 5.0 min, but it was not significantly different. Changes in oxygen consumption, heart rate, and perceived rate of exertion were similar for both types of drinks. These results demonstrate that the herbal drink and the placebo elicited similar physiological responses and exercise performance during endurance cycling. It is therefore concluded that AgroMas ® herbal drink and water ingestion resulted in a similar ergogenic response on cycling performance in young cyclists. The researchers suggested that one of the reasons for the absence of a significant difference in cycling time could be due to lack of carbohydrates in the herbal drink. Other possible reasons could be due to the low concentration of herbs, E. longifolia Jack, in the drink. Muhamad et al. studied 12 recreational athletes who consumed two capsules (150 mg) of E. longifolia or placebo capsules daily for 7 days. They reported that the amount of this herb had no effects on the endurance running performance and physiological responses. However, it has been reported by Hamzah and Yusof  that the longer supplement time (150 mg daily for 5 weeks) can increase fat-free mass, muscle strength, and size. Moreover, E. longifolia has been reported to have aphrodisiac property due to its ability to stimulate the production of androgen hormones, especially testosterone.  It is a well-known fact that the use of testosterone to enhance athletic performance is prohibited in sports.  Chen et al. studied a total of 13 male recreational athletes (age 29 ± 5.5 years) who consumed either 400 mg of E. longifolia or placebo daily for 6 weeks. They reported that the urinary testosterone: Epitestosterone ratio of the E. longifolia supplement group was below the cutoff point by the International Olympic Committee Medical Commission. In addition, this plant supplementation regimen did not result in any adverse effects on the liver and renal functions of the participants.
Talbott et al. assessed stress hormones and mood state in 63 subjects (32 men and 31 women) screened for moderate stress who were supplemented with a standardized hot water extract of E. longifolia root or placebo for 4 weeks. They reported that the E. longifolia-treated group showed a significant improvement by decreased tension (−11%), anger (−12%), and confusion (−15%). They also showed significant improvements in stress hormone profiles via reduced cortisol (−16%) and increased testosterone (+37%). These researchers thus concluded that daily supplementation with this plant may be an effective approach to shielding the body from detrimental effects such as the stress of dieting, sleeplessness, and exercise training.
| Conclusion|| |
E. longifolia may have sufficient evidence that elicit benefits on endurance performance and physiological responses in high dosage and longer supplementation. However, this herb has shown to have psychological aid such as antianxiety properties. Hence, further studies could also focus on the herb's effects on psychological states and determine if these effects are associated with an improvement in exercise performance. This review article has attempted to compile the new medicinal plant E longifolia to be one of the choices of ergogenic plants.
A special thanks to the members of the Fish Research Unit, Department of Pathobiology, Faculty of Science, Mahidol University for their support. The author would like to thank anonymous reviewers and editors of this review article for their perceptive comments and positive criticism in this review article.
Financial support and sponsorship
Conflicts of interest
There are no conflicts of interest.
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| Authors|| |
Thasanee Khanijou, is currently pursuing her B.Sc. in Biological Sciences (Biomedical Concentration) from Mahidol University International College and is anticipated to graduate by April, 2017. Her Senior Project Research Paper is centered on "The Comparative effect of Eurycoma longifolia and Tiliacora triandra using Artemia salina and Tebebrio molitor Bioassay" and is being carried out under the supervision of Dr. Wannee Jiraungkoorskul.
Wannee Jiraungkoorskul, is currently working as Assistant Professor in Department of Pathobiology, Faculty of Science, Mahidol University, Thailand. She received her B.Sc. in Medical Technology, M.Sc. in Physiology, and Ph.D. in Biology. Dr. Wannee Jiraungkoorskul's current research interests are aquatic toxicopathology and efficiency of medicinal herbs.