found significant changes in muscle size fairly earlier than might be expected, but the study cannot determine the changes in muscle size were due to the normal growth of the participants or due to strengthening exercises program. They suggested that overall growth may have played a part in the muscle size changes (Verschuren et al., 2011). In recent meta-analysis, which reviewed 13 random control trials that included 368 patients, found that short-duration interventions of strengthening exercises program (less than eight weeks) were similar to long-duration interventions (eight to 12 weeks; Park, & Kim,
found significant changes in muscle size fairly earlier than might be expected, but the study cannot determine the changes in muscle size were due to the normal growth of the participants or due to strengthening exercises program. They suggested that overall growth may have played a part in the muscle size changes (Verschuren et al., 2011). In recent meta-analysis, which reviewed 13 random control trials that included 368 patients, found that short-duration interventions of strengthening exercises program (less than eight weeks) were similar to long-duration interventions (eight to 12 weeks; Park, & Kim,