EFFECT OF HYPERTROPHY-SPECIFIC TRAINING ON LEG EXPLOSIVE POWER AMONG WEIGHT LIFTERS Sridar, P. *1 & Arumugam, S. #2 * Director of Physical Education & # Assistant Professor * Department of Physical Education, Bharathiar University Arts and Science (Constituent) College, Modakkurachi, Erode, Tamilnadu, India, Pin code: 638104 # Department of Physical Education and Sports, Manonmaniam Sundaranar University, Abishekapatti, Tirunelveli, Tamilnadu, India, Pin code: 627012 1 psridarperumal@gmail.com 2 draru1975@gmail.com -------------------------------------------------------------------------------------------------------------------------------------- Abstract--The present study aim was to find out the effect of hypertrophy-specific training on leg explosive power among weight lifters. To attain the purpose of this study, twenty male intercollegiate weight lifters from twenty male intercollegiate weight lifters from Bharthiar University Arts and Science College, Modakkurchi and Kongu Arts and Science College, Mettukadai, Erode District, Tamilnadu, India.. The category of weight lifters was 53-56 kg. Their age were ranged from 20 to 25 years. The selected participants were randomly divided into two groups such as group ‘I’ underwent hypertrophy-specific training (n=10) and group II act as control (n=10). Group ‘I’ underwent hypertrophy-specific training for three alternative days per week and one session per day for six weeks period. Group ‘II’ was not exposed to any specific training but they were participated in regular activities. The data on selected criterion leg explosive power was assessed by Sargent vertical jump test. The collected data were statistically analyzed by using dependent-‘t’ test and Analysis of Covariance (ANCOVA) was fixed at 0.05 level of confident. All the data were analyzed by used SPSS-22 version statistical package. It was concluded that the hypertrophy-specific training group was significantly improved on leg explosive power when compared than control group and also made significant differences among experimental and control groups. Key Words-- Hypertrophy-Specific Training, Leg Explosive Power, Weight Lifter, Sargent Vertical Jump Test I. INTRODUCTION Hypertrophy-Specific Training arose out of the research looking at both the stimuli and mechanisms for muscle cell hypertrophy. Hypertrophy-Specific Training (HST) is based on physiological principles of hypertrophy first discovered in the laboratory. These principles were then organized into a “method” of mechanically loading the muscle to induce hypertrophy. Of course, translating these principles into applicable methods (sets & reps & schedules) brings in some possibility of error. As the science continues to explore the exact mechanisms of muscle hypertrophy, this error will be whittled away (HST, 2011). Jacque Crockford, said that lifting weights can increase your lean body mass, which increases the number of overall calories burn during the day. Many hold HST in extremely high regard as it has been found to be very effectual for building significant muscular size. It appears to be an extremely powerful muscle building method and as a result, HST has been adopted by a number of competitive bodybuilders. While HST is a method worth adopting for bodybuilders, over the years it has also proved to be very useful for athletes and participants across a number of sports – specifically, power lifters, weightlifters and Olympic lifters (Ladon, 2017). Strength and power development are abilities important for athletic performance in many sports. Generally, resistance training based on gravity is used to improve these qualities. Strength is a very important factor for offensive and defensive players. Without strength, we can‟t do any kind of skill among weightlifting. So weightlifting was a strength based event (Arumugam, 2019). Vertical jump is an important predictor of performance in several sports that require explosive action. Vertical jump performance is one of the best indications of lower limbs muscle power. There is an eccentric movement of agonist muscles followed by a concentric movement, and jump performance results, mostly, from the use of the elastic energy produced in the stretch shortening cycle ( Arumugam & Venkatesh, 2019). Journal of Scientific Computing Volume 8 Issue 12 2019 ISSN NO: 1524-2560 http://jscglobal.org/ 127