Electromyographic Activity and Applied Load During High Intensity Elastic Resistance and Nautilus Machine Exercises

• Authors: Saied Aboodarda , Mohamad Shariff , Ahmad Muhamed , Fatimah Ibrahim , Ashril Yusof
• Languages of publication: EN

Abstracts

EN

This study was designed to quantify and compare Electromyographic activity (EMG) and applied load in quadriceps muscle within performing high intensity knee extension exercises by Elastic Resistance (ER) and Nautilus Machine (NM). Sixteen male and female subjects (22.4 ± 4.7 yrs) completed 8 RM seated knee extension by NM, elastic tubing with original length (E0) and elastic tubing with 30% decrement of original length (E30). The mean value of EMG and external force were calculated and synchronized across various segments of motion for the three modes of training. The results demonstrated that in the early concentric and late eccentric segments of contraction, NM elicited significantly higher muscle activation than both E30 and E0 (p < 0.05). However, in the mid-concentric and mid-eccentric as well as late concentric and early eccentric segments no significant differences were observed between NM and E30. These findings supported the approach that developing external recoil of force in ER device by reducing 30% of initial length of elastic material can offer similar neuromuscular activation compared with NM. On this basis, E30 can be suggested as an affordable and non-gym based exercise device which has the capacity to provide an appropriate high resistance stimulus to meet the training requirement of athletes.

Keywords

EN

electromyogram; elastic tubing; variable resistance training; multiple repetitions maximum

• Publisher: De Gruyter Open
• Journal: Journal of Human Kinetics
• Year: 2011
• Volume: 30
• Pages: 5-12

Dates

published

1 - 12 - 2011

online

25 - 12 - 2011

Contributors

author

Saied Aboodarda

• Sports Center, University of Malaya, Malaysia

author

Mohamad Shariff

• Faculty of Medicine, University of Malaya, Malaysia

author

Ahmad Muhamed

• Advanced Medical and Dental Institute, University Sains Malaysia, Malaysia

author

Fatimah Ibrahim

• Dept of Biomedical Engineering, Faculty of Engineering, University of Malaya, Malaysia

author

Ashril Yusof

• Sports Center, University of Malaya, Malaysia

References

• American College of Sports Medicine (2002). Position stand: Progression models in resistance training for healthy adults. Medicine and Science in Sports and Exercise. 34: 364 - 380.[WoS]
• Anderson, C. E., Sforzo, G. A., & Sigg, J. A. (2008). The Effects of Combining Elastic and Free Weight Resistance on Strength and Power in Athletes. The Journal of Strength & Conditioning Research, 22(2), 567-574.
• Bosco, C., Colli, R., Bonomi, R., Von Duvillard, S. P., and Viru, A. (2000). Monitoring strength training: neuromuscular and hormonal profile. Medicine & Science in Sports & Exercise, 32(1), 202.
• Elliott, B. C., Wilson, G. J., & Kerr, G. K. (1989). A biomechanical analysis of the sticking region in the bench press. Medicine & Science in Sports & Exercise, 21(4), 450-462.
• Fleck, S. J., & Kraemer, W. J. (2004). Designing Resistance Training Program: Champaign, IL: Human Kinetic.
• Hintermeister, R. A., Bey, M. J., Lange, G. W., Steadman, J. R., & Dillman, C. J. (1998). Quantification of Elastic Resistance Knee Rehabilitation Exercises. journal of Orthopedic and Sport Physical Therapy, 28(1), 40-50.
• Hodges, G. N. (2006). The effect of movement strategy and elastic starting strain on shoulder resultant joint moment during elastic resistance exercise. University of Manitoba.
• Hopkins, J. T., Christopher, D. I., Michelle, A. S., & Susan, D. B. (1999). An Electromyographic Comparison of 4 Closed Chain Exercises. jorunal of athletic training, 34 (4), 353-357.
• Hughes, C. J., Hurd, K., Jones, A., & Sprigle, S. (1999). Resistance Properties of Thera-Band® Tubing During Shoulder Abduction Exercise. Journal of Orthopedic and Sports Physical Therapy, 29(7), 413-420.
• Lim, Y., and Chow, J. (1998). Electromyographic comparison of biceps curls performance using a dumbbell and an elastic tubing: The North American congress on biomechanics.
• Manning, R. J., Graves, J. E., Carpenter, D. M., Leggett, S. H., & Pollock, M. L. (1990). Constant vs variable resistance knee extension training. Medicine & Science in Sports & Exercise, 22(3), 397-401.
• Matheson, J. W., Kernozek, T. W., Fater, D. C. W., & Davies, G. J. (2001). Electromyographic activity and applied load during seated quadriceps exercises. Medicine & Science in Sports & Exercise, 33(10), 1713-1725.
• McCaw, S. T., & Friday, J. J. (1994). A Comparison of Muscle Activity Between a Free Weight and Machine Bench Press. The Journal of Strength & Conditioning Research, 8(4), 259-264.
• Page, J. L., Ben A., Robert B., Robert C., & Robert C. (1993). Posterior Rotator Cuff Strengthening Using Theraband® in a Functional Diagonal Pattern in Collegiate Baseball Pitchers. Journal of Athletic Training, 28(4), 346-354.
• Page, P., & Ellenbecker, T. (2003). The Scientific and Clinical Application of Elastic Resistance: Champaign, IL, Human Kinetics.
• Patterson, R. M., Stegink Jansen, C. W., Hogan, H. A., and Nassif. M. D. (2001). Material Properties of Thera-Band Tubing. Physical Therapy. 81:1437-1445.
• Richards, J. A., & Dawson, T. A. (2009). Optimizing Exercise Outcomes: The Efficacy of Resistance Training Using Conventional vs. Novel Movement Arcs. Journal of Strength and Conditioning Research, 23(7), 2015-2024.[Crossref]
• Schulthies, S. S., Ricard, M. D., Alexander, K. J., and Myrer, J. W. (1998). An Electromyographic Investigation of 4 Elastic-Tubing Closed Kinetic Chain Exercises after Anterior Cruciate Ligament Reconstruction. Journal of Athletic Trainining. 33 328-335.
• Simoneau, G. G., Shellie M Bereda, Dennis C Sobush, & Andrew J Starsky. (2001). Biomechanics of Elastic Resistance in Therapeutic Exercise Programs. Journal of Orthopedic and Sports Physical Therapy. 31(1), 16-24.
• Treiber, F. A., Lott, J., Duncan, J., Slavens, G., & Davis, H. (1998). Effects of Theraband and Lightweight Dumbbell Training on Shoulder Rotation Torque and Serve Performance in College Tennis Players. The American Journal of Sports Medicine, 26(4), 510-515.
• Wallace, B. J., Winchester, J. B., & McGuigan, M. R. (2006). Effects of Elastic Bands on Force and Power Characteristics During the Back Squat Exercise. The Journal of Strength & Conditioning Research, 20(2), 268-272.
• Welsch, E. A., Bird, M., & Mayhew, J. L. (2005). Electromyographic Activity of the Pectoralis Major and Anterior Deltoid Muscles During Three Upper-Body Lifts. The Journal of Strength & Conditioning Research, 19(2), 449-452.

Identifiers

DOI

10.2478/v10078-011-0067-0