Abstract:
The purpose of this study was to examine the combined effect of whey protein supplement and
concurrent muscular endurance and strength training on body composition and muscular
fitness of Debre Markos town male weight lifters. Twenty-two one year experienced male
weight lifters with the age group between twenty to twenty-three years were selected by simple
random samplining techniques from the total of forty one year experienced male weight
lifters. Those selected twenty-two subjects completed the study from the initial to the end. This
study was used Convenience and simple random sampling techniques to select the sample
but control group continued only concurrent training. Both groups were performed
concurrent training 4 days per a week and the duration of the training time was 50 minute.
Pre test and post tests were conducted in all variables, such as body fat percentage by skin
fold calipers and body mass index test, muscular endurance by push up test, abdominal
strength by sit up test and upper body strength by 1RM test. Collected data from the subjects
were analyzed by SPSS version 20 and comparison of mean value result was carried out by
pared sample T test. The level of significance was p< 0.05. The result of this study indicated
that all variables from pre test to post test showed significant change with the mean difference
of: body fat percentage -1.39 and -0.22, body mass index -0.17 and 0.16, for sit up test was 5.4
and 1.16 push up test with 6.4 and 1.33 and upper body strength also 0.1 and 0.03 in
experimental and control group respectively. In general from this study the researcher
conclude that whey protein supplement with concurrent training have a positive effect to
improved body composition and muscular fitness on experimental group than control group.
