The purpose of this study was to compare the effects of two different velocities of eccentric work on delayed onset muscle soreness and associated factors in untrained college-aged males. Eight untrained males 21.6 (+1.7) yrs. were recruited for the study. Three subjects did not crossover design and assigned to either a 60 deg/sec or 150 deg/sec work velocity. One hundred maximal eccentric repetitions were completed separately for both legs. Exercise treatment on both legs was carried out on the Kinetic Communicator Device. Repetitions were divided into twoexercise trials. Following the exercise treatment, 10 sets of 10 repetitions with a 5 second pause between each repetition. A five week rest interval separated the range of motion (ROM) values (24, 48, 72, 122, 144 hrs.), serum creatine kinase (Ck), (pre, 24, 72, 144 hrs.), and and the results of 2 subjective soreness scales were recorded. The results of the study demonstrated no significant difference in the velocity * time interaction for Ck, ROM, and soreness perception values; however, significant findings were demonstrated for the main effect across days within each data collection except for Ck following the 150 deg/sec trial. No significant difference could be found between each leg or between both trials following each exercise treatment. The Ck'response at the faster velocity seemed to indicate that the 150 deg/sec work trial may have produced a greater amount of muscle trauma compared to the 60 deg/sec trial without significantly effecting the soreness response.
| Identifer | oai:union.ndltd.org:BSU/oai:cardinalscholar.bsu.edu:handle/183515 |
| Date | 03 June 2011 |
| Creators | Bogle, Phillip G. |
| Contributors | Whaley, Mitchell H. |
| Source Sets | Ball State University |
| Detected Language | English |
| Format | viii, 122 leaves : ill. ; 28 cm. |
| Source | Virtual Press |
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