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A COMPARISON OF THE PLANK AND PERFECT PLANK USING ELECTROMYOGRAPHY

Ivers, Matthew R

Abstract Details

2017, Master of Education, Cleveland State University, College of Education and Human Services.
Purpose: The purpose of this study is to determine whether there is a difference in muscle activation and blood lactate and force production analysis among the two plank variations, the prone plank and the plank done in the perfect plank machine. It was hypothesized that (1) that post exercise blood lactate will be higher after the perfect plank exercise due to greater instability if the exercise, (2) EMG will show greater activity qualitatively and quantitatively in the abdominal muscles and less in the lower back on the perfect plank machine when compared to the prone plank due to the upright posture, and (3) EMG activation will be greater in females for both plank exercises. Decreased muscular strength in females will require more oxygen to the abdominal muscles which equates to the muscles working harder. Methods: Subjects included 15 males and 15 females. All subjects completed 2 variations of the plank exercise for 15 seconds on separate days; the prone plank and perfect plank. In order to analyze the two exercises, wireless electromyography sensors were placed on the anterior deltoids, external obliques, rectus abdominis, and erector spinae on the left and right sides of the body. Pre and post blood lactate concentration was also extracted to monitor anerobic work. Repeated measures was used to analyze the prone plank and perfect plank to determine if one plank was more effective than the other. Results: The left and right rectus abdominis (.07955 ± 089843, .12595 ± .182388) showed trends of more stimulation on average from the perfect plank as compared to the prone plank (.04575 ± .029244, .06513 ± .100986). The left and right erector spinae also saw trends of more activation from the perfect plank (.09343 ± .188366, .10750 ± .180212) when compared to the prone plank (.03606 ± .092540, .06124 ± .146232). The left and right obliques saw similar stimulation in the perfect plank (.05012 ± .069828, .05073 ± .045048) when compared to the prone plank (.04686 ± .027402, .05543 ± .029668). The left and right deltoid saw a trend of increased activation in the prone plank (.10924 ± .082333, .08911 ± .050784) when compared to the perfect plank (.06294 ± .102281, .05478 ± .085322). The results from the blood lactate proved to be significant between the two exercises (p=.024) with perfect plank seeing a greater increase when compared to the prone plank. Conclusion: Based on the results, the rectus abdominis and erector spinae trended toward being stimulated more, on average, with the use of the perfect plank. The obliques showed no trends in muscle activity. Both exercises were equally as effective in oblique stimulation. The deltoids were activated more in the shoulders in the prone plank. Changes in lactate point towards the perfect plank being a more difficult, anaerobic exercise.
Kenneth Sparks, PhD (Committee Chair)
Douglas Wadja, PhD (Committee Member)
Emily Kullman, PhD (Committee Member)
53 p.

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Citations

  • Ivers, M. R. (2017). A COMPARISON OF THE PLANK AND PERFECT PLANK USING ELECTROMYOGRAPHY [Master's thesis, Cleveland State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=csu1494947090917416

    APA Style (7th edition)

  • Ivers, Matthew. A COMPARISON OF THE PLANK AND PERFECT PLANK USING ELECTROMYOGRAPHY. 2017. Cleveland State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=csu1494947090917416.

    MLA Style (8th edition)

  • Ivers, Matthew. "A COMPARISON OF THE PLANK AND PERFECT PLANK USING ELECTROMYOGRAPHY." Master's thesis, Cleveland State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=csu1494947090917416

    Chicago Manual of Style (17th edition)