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| Abstract : Universiti Pendidikan Sultan Idris |
| The primary purpose of this study was to identify and compare the lower extremities' kinematic joints initiation sequence during the first pull phase of the classic snatch among male and female elite weightlifting athletes. As the secondary purpose, the maximal angle extension of joints, sub-phase duration, joint angular displacement and velocity, barbell velocity and the ground reaction force produced during the classic snatch sub-phases were determined and compared between genders. Six men (age: 19.9�2.29 years, height: 1.67�0.04 m, and body mass: 87.96�2.68 kg) and six women (age: 19.72�1.35 years, height: 1.55�0.42 m, and body mass: 70.25�10.78 kg) were tested for 85% of their 1 repetition classical snatch movement. Kinematics were captured at 100 Hz using a Qualisys motion capture system with eight cameras, and markers were placed bilaterally on the hips, knees and ankle joints. Kinetics were captured using the Kistler fixed force plate. The results revealed that a significant difference between males and females in term of hip joint initiation sequence, ground reaction force and barbell velocity. The hip angle among the female athletes initiates the start movement earlier than among male athletes. The ground reaction force and barbell velocity are higher in males compared to females. These findings suggest that the female weightlifters are not in a position to produce higher degrees of extension, thus reducing their efficiency in lifting and ability to take more substantial resistance. Having a limited angle extension results in the involved muscles not being fully contracted. ? 2021 Montenegrin Sports Academy. All rights reserved. |
| References |
Bartonietz, K. E. (1996). Biomechanics of the snatch: Toward a higher training efficiency. Strength and Conditioning Journal, 18(3), 24-31. doi:10.1519/1073-6840(1996)018<0024:botsta>2.3.co;2 Baumann, W., Gross, V., Quade, K., Galbierz, P., & Schwirtz, A. (1988). The snatch technique of world class weightlifters at the 1985 world championships. International Journal of Sport Biomechanics, 4(1), 68-89. Retrieved from www.scopus.com Bernstein, N. (1967). The Coordination and Regulation of Movements, Retrieved from www.scopus.com Burdett, R. G. (1982). Biomechanics of the snatch technique of highly skilled and skilled weightlifters. Research Quarterly for Exercise and Sport, 53(3), 193-197. doi:10.1080/02701367.1982.10609339 Dawes, J. (2007). The muscle snatch. Strength and Conditioning Journal, 29(6), 55-57. doi:10.1519/00126548-200712000-00010 Enoka, R. M. (1988). Load- and skill-related changes in segmental contributions to a weightlifting movement. Medicine and Science in Sports and Exercise, 20(2), 178-187. doi:10.1249/00005768-198820020-00013 Enoka, R. M. (1979). The pull in olympic weightlifting. Medicine and Science in Sports, 11(2), 131-137. Retrieved from www.scopus.com Figueiredo, P. R. P., Silva, P. L. P., Avelar, B. S., Chagas, P. S. C., Oliveira, L. C. P., & Mancini, M. C. (2013). Assessment of gait in toddlers with normal motor development and in hemiplegic children with mild motor impairment: A validity study. Brazilian Journal of Physical Therapy, 17(4), 359-366. doi:10.1590/S1413-35552012005000105 Garhammer, J. (1985). Biomechanical profiles of olympic weightlifters. International Journal of Sport Biomechanics, 1(2), 122-130. Retrieved from www.scopus.com Garhammer, J. (1981). BIOMECHANICAL CHARACTERISTICS OF THE 1978 WORLD WEIGHTLIFTING CHAMPIONS. Paper presented at the Retrieved from www.scopus.com Gourgoulis, V., Aggelousis, N., Mavromatis, G., & Garas, A. (2000). Three-dimensional kinematic analysis of the snatch of elite greek weightlifters. Journal of Sports Sciences, 18(8), 643-652. doi:10.1080/02640410050082332 Isaka, T., Okada, J., & Funato, K. (1996). Kinematic analysis of the barbell during the snatch movement of elite asian weight lifters. Journal of Applied Biomechanics, 12(4), 508-516. doi:10.1123/jab.12.4.508 Kauhanen, H., Hakkinen, K., & Komi, P. V. (1984). A biomechanical analysis of the snatch and clean and jerk techniques of finnish elite and district level weightlifters. Scandinavian Journal of Sports Sciences, 6(2), 47-56. Retrieved from www.scopus.com Kipp, K., Harris, C., & Sabick, M. B. (2011). Lower extremity biomechanics during weightlifting exercise vary across joint and load. Journal of Strength and Conditioning Research, 25(5), 1229-1234. doi:10.1519/JSC.0b013e3181da780b Lukashev, A. A., Medvedev, A. S., & Melkonian, A. A. (1979). Snatch technique of weightlifters executing repetitions with 80 percent of maximum. Teoriya i Praktika Fizicheskoi Kultury, 12, 13-15. Retrieved from www.scopus.com O'Shea, P. (2000). Theory of athletics power production. Quantum Strength Fitness II, Retrieved from www.scopus.com Schilling, B. K., Stone, M. H., O'Bryant, H. S., Fry, A. C., Coglianese, R. H., & Pierce, K. C. (2002). Snatch technique of collegiate national level weightlifters. Journal of Strength and Conditioning Research, 16(4), 551-555. doi:10.1519/1533-4287(2002)016<0551:STOCNL>2.0.CO;2 Senior, D. (2004). Qualisys Medical AB: Qualisys Track Manager User Manual, Retrieved from www.scopus.com Stone, M. H., O'Bryant, H. S., Williams, F. E., Johnson, R. L., & Pierce, K. C. (1998). Analysis of bar paths during the snatch in elite male weightlifters. Strength and Conditioning Journal, 20(4), 30-38. doi:10.1519/1073-6840(1998)020<0030:aobpdt>2.3.co;2 Winter, D. A. (1990). Biomechanics and Motor Control of Human Movement, Retrieved from www.scopus.com |
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