The Effect of Protein Supplement on Maximum Strength Toward The Members of One Gym Fitness Center Padang

Fardi, Adnan and Erizal, Nurmai and Pratama, Angga Okta (2017) The Effect of Protein Supplement on Maximum Strength Toward The Members of One Gym Fitness Center Padang. In: Proceedings The 1ST Yogyakarya International Seminar on Health, Physical Education, and Sports Science: Evidence-based Practice of Sports Scinece in Education Performance, and Health, 14 Oktober 2017, Yogyakarta.

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Abstract

The problem in this research was late maximum strength increase experienced by members of fitness at the moment doing weight training. This was caused by a lack of knowledge of fitness members about nutrition. The grant protein supplements manufacturer can be used as an alternative to increase the maximum power which is owned by the fitness members. The purpose of this research is to know the effect of protein supplement on maximum strength toward the members of One Gym Fitness Center Padang . Methods: The type of this research is quasi experiment. The population is all of the active members of One Gym Fitness Center Padang. The sample of this study is 26 people selected by using purposive random sampling, who are listed at One Gym less than a month. They were divided into two groups, 13 members in experimental group and 13 members in control group. For experimental group, the members were given the protein supplement after doing the exercise at One Gym Fitness during 16 times which each of the members consumed 1.5 gr/weight/day proteins. For control group, the members were not allowed to consume protein exaggeratedly. They also were not given the protein supplement during conducting the research. The instrument used in this research was the maximum power test using one repetition maximum method. The data analyzed by using t-test with a = 0.05. Results: The research results showed that the mean of the maximum strength of the arm muscles of experimental group is 28.46 (Pretest) and 52.31 (Posttest) (t h16,98 > tt 1.782); the mean of leg muscles is 60.77 (Pretest) and 83.85 (Posttest) (th14,85 > tt 1.782). The mean of the maximum strength of the arm muscles of control group is 30.00 (Pretest) and 41.15 (Posttest) (tH 7,94 > tt 1.782) and the mean of leg muscles is 61.92 (Pretest) and 71.15(Posttest) (th5, 48 > tt 1.782). Conclusions: It can be concluded that there was a significant effect of manufacture protein supplement on maximum strength toward the member one Gym Fitness.

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