Muscle Activity of Core Muscles During Plank Exercise on Different Surfaces

Year 2022, Volume: 24 Issue: 3, 298 - 305, 31.12.2022

Huseyin Topçu , Ramiz Arabacı , Ali Kamil Güngör , Yakup Zühtü Birinci , Serkan Pancar , Ufuk Şekir

Abstract

Determining the effects of different instability devices on core muscle activation gives important information for practitioners when prescribing strength exercises. This study aimed to compare electromyographic responses of core muscles during plank exercise performed with and without instability devices. Twenty-five subjects (age = 21.5 ± 2.66 years; height 179 ± 0.5 cm; weight 74.28 ± 4.27 kg; Body Mass Index (BMI) = 22.98 ± 1.11 kg/m2) performed plank exercise on stable surface, BOSU ball, Swiss ball, and TRX Suspension Trainer (TRX) in a crossover design. Plank exercise consisting of isometric contractions was performed two times. Surface electromyography (sEMG) was used to determine the amplitude of rectus abdominis (RA), external oblique (EO), and erector spinae (ERS) muscles during the exercise. The sEMG amplitude has been normalized against the maximum voluntary contraction (MVC) trial that yielded the highest peak torque value during isometric contractions of the related muscles. In the RA and EO muscles, significantly higher normalized sEMG amplitude (%MVC) values were detected in TRX and Swiss ball compared to a stable surface and BOSU ball (p<0.05). On the other hand, TRX exhibited more sEMG amplitude than the Swiss ball (p<0.05). A significantly higher sEMG amplitude value was detected on TRX than the Swiss ball in the ERS muscle (p<0.05). However, there was no significant difference between the BOSU ball and the Stable surface. In conclusion, the TRX may be a good option for those who want more challenges for the anterior and lateral core muscles. However, plank exercise seems trivial for strengthening the ERS muscle, whether on a stable surface or an instability device.

Keywords

EMG, Instability, Core Muscle, BOSU Ball, Swiss Ball, TRX

Project Number

DDP(SPF)-2020/19

References

• Anderson, K and Behm, DG. The impact of instability resistance training on balance and stability. Sports Medicine 35: 43–53, 2005.
• Arokoski, JP, Valta, T, Airaksinen, O, and Kankaanpaa, M. Back and abdominal muscle function during stabilization exercises. Archives of Physical Medicine and Rehabilitation 82: 1089–1098, 2001.
• Atkins, SJ, Bentley, I, Brooks, D, Burrows, MP, Hurst, HT, and Sinclair, JK. Electromyographic response of global abdominal stabilizers in response to stable-and unstable-base isometric exercise. Journal of Strength and Conditioning Research 29: 1609–1615, 2015.
• Behm, D and Colado, JC. The effectiveness of resistance training using unstable surfaces and devices for rehabilitation. International Journal of Sports Physical Therapy 7: 226, 2012.
• Behm, DG, Leonard, AM, Young, WB, Bonsey, WAC, and MacKinnon, SN. Trunk muscle electromyographic activity with unstable and unilateral exercises. Journal of Strength and Conditioning Research 19: 193–201, 2005.
• Bergmark, A. Stability of the lumbar spine. A study in mechanical engineering. Acta orthopaedica Scandinavica Supplementum 230: 1–54, 1989.
• Byrne, JM, Bishop, NS, Caines, AM, et al. Effect of using a suspension training system on muscle activation during the performance of a front plank exercise. Journal of Strength and Conditioning Research 28: 3049–3055, 2014. Choi, JH, Kim, DE, and Cynn, HS. Comparison of trunk muscle activity between traditional plank exercise and plank exercise with isometric contraction of ankle muscles in subjects with chronic low back pain. Journal of Strength and Conditioning Research 35: 2407–2413, 2021.
• Cholewicki, J, Juluru, K, and McGill, SM. Intra-abdominal pressure mechanism for stabilizing the lumbar spine. Journal of Biomechanics 32: 13–17, 1999.
• Cissik, JM. Programming Abdominal Training, Part I. National Strength & Conditioning Association 24: 9–15, 2002.
• Czaprowski, D, Afeltowicz, A, Gebicka, A, Pawłowska, P, Kedra, A, Barrios, C, et al. Abdominal muscle EMG-activity during bridge exercises on stable and unstable surfaces. Physical Therapy in Sport 15: 162–168, 2014.
• DiGiovine, NM, Jobe, FW, Pink, M, and Perry, J. An electromyographic analysis of the upper extremity in pitching. Journal of Shoulder and Elbow Surgery 1: 15–25, 1992.
• Duncan, M. Muscle activity of the upper and lower rectus abdominis during exercises performed on and off a Swiss ball. Journal of bodywork and movement therapies 13: 364–367, 2009.
• Fowles, JR. What I always wanted to know about instability training. Applied physiology, nutrition, and metabolism 35: 89–90, 2010.
• Gamble, P. An Integrated Approach to Training Core Stability. Strength and Conditioning Journal 29: 58–68, 2007.
• Goodman, CA, Pearce, AJ, Nicholes, CJ, Gatt, BM, and Fairweather, IH. No difference in 1RM strength and muscle activation during the barbell chest press on a stable and unstable surface. Journal of Strength And Conditioning Research 22: 88–94, 2008.
• Jin, L, Kwang-hyun, J, Hyun-a, L, Jae-yeon, S, Jae-lim, C, Seung-beom, K, et al. Comparison of three different surface plank exercises on core muscle activity. Physical Therapy Rehabilitation Science 5: 29–33, 2016.
• Kibler, W ben, Press, J, and Sciascia, A. The role of core stability in athletic function. Sports medicine (Auckland, NZ) 36: 189–198, 2006.
• Lehman, GJ, Hoda, W, and Oliver, S. Trunk muscle activity during bridging exercises on and off a Swissball. Chiropractic & Osteopathy 13: 14, 2005.
• Luk, J. T., Kwok, F. K., Ho, I. M., & Wong, D. P. (2021). Acute Responses of Core Muscle Activity during Bridge Exercises on the Floor vs. the Suspension System. International Journal of Environmental Research and Public Health, 18(11), 5908.
• Marshall, P and Murphy, B. Changes in muscle activity and perceived exertion during exercises performed on a swiss ball. Applied Physiology, Nutrition and Metabolism 31: 376–383, 2006.
• McGill, S. Core training: Evidence translating to better performance and injury prevention. Strength and Conditioning Journal 32: 33–46, 2010.
• McGill, S. Low Back Disorders (3rd ed.). Champaign, IL: Human Kinetics, 2007.
• Peterson, DD. Proposed performance standards for the plank for inclusion consideration into the navy’s physical readiness test. Strength and Conditioning Journal 35: 22–26, 2013.
• Schoenfeld, B and Contreras, B. Strategies for optimal core training program design. NSCA’s Performance Training Journal 10, 2011.
• Schoenfeld, BJ, Contreras, B, Tiryaki-Sonmez, G, Willardson, JM, and Fontana, F. An electromyographic comparison of a modified version of the plank with a long lever and posterior tilt versus the traditional plank exercise. Sports Biomechanics 13: 296–306, 2014.
• Snarr, RL and Esco, MR. Electromyographical comparison of plank variations performed with and without instability devices. Journal of Strength and Conditioning Research 28: 3298–3305, 2014.
• Snarr, RL, Hallmark, A v., Nickerson, BS, and Esco, MR. Electromyographical comparison of pike variations performed with and without instability devices. Journal of Strength and Conditioning Research 30: 3436–3442, 2016.
• Snarr, RL, Wirbiezcas, M, Colbert, A, Langford, E, and Hogan, G. Bodyweight BOSU Ball Exercises. Strength & Conditioning Journal 43: 117–126, 2021.
• Tan, S, Cao, L, Schoenfisch, W, and Wang, J. Investigation of core muscle function through electromyography activities in healthy young men. Journal of Exercise Physiology 16: 45–52, 2013.
• Uribe, BP, Coburn, JW, Brown, LE, Judelson, DA, Khamoui, A v., and Nguyen, D. Muscle activation when performing the chest press and shoulder press on a stable bench vs. a Swiss ball. Journal of Strength And Conditioning Research 24: 1028–1033, 2010.
• Vera-Garcia, FJ, Grenier, SG, and McGill, SM. Abdominal muscle response during curl-ups on both stable and labile surfaces. Physical Therapy 80: 564–569, 2000.
• Wahl, MJ and Behm, DG. Not all instability training devices enhance muscle activation in highly resistance-trained individuals. Journal of Strength and Conditioning Research 22: 1360–1370, 2008.