Abstract
A sagittal-plane model of the knee, which takes account of the movements of the flexion axis relative to the femur and tibia and considers the possibility of antagonistic and synergistic muscle action, is used to determine the values of the forces transmitted by the muscles, cruciate ligaments and intra-articular surfaces during the clean phase of the clean-and-jerk weightlift. The theoretical analyses demonstrate that it is geometrically and mechanically possible for the knee musculature to unload and thereby protect the cruciate ligaments throughout a substantial portion of the lift. The price to be paid for this protection, in the case of the co-contraction of antagonistic muscles, is larger muscle and tibio-fermoral contact forces. The application of synergistic muscle action, however, results in smaller individual muscle and intra-articular contact forces.
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References
Alexander, R. McN., andVernon, A. (1975): ‘The dimensions of knee and ankle muscles and the forces they exert,’J. Human Movement Stud.,1, pp. 115–123
Andrews, J. G., Hay, J. G. andVaughan, C. L. (1983): ‘Knee shear forces during a squat exercise using a barbell and a weight machine’in Matsui, H., andKobayashi K. (Eds.): ‘Biomechanics VIII-B’, (Human Kinetics Publishers) pp. 923–927
Ariel, B. G. (1974): ‘Biomechanical analysis of the knee joint during deep knee bends with heavy load’in Nelson, R. C., andMorehouse, C. A. (Eds.): ‘Biomechanics IV’, (University Park Press) pp. 44–52
Basford, J. R. (1985): ‘Weightlifting, weight training and injuries,’Orthopedics,8, pp. 1051–1056
Brand, R. A. (1986): ‘Knee ligaments: A new view,’J. Biomech. Eng.,108, pp. 106–110
Collins, J. J., andO’Connor, J. J. (1991): ‘Muscle-ligament interactions at the knee during walking,’Proc. Inst. Mech. Eng. J. Engng. Med.,205, pp. 11–18
Fick, R. (1910): ‘Handbuch der Anatomie des Meuschen’ (Gustav Fischer)
Fitzgerald, B., andMcLatchie, G. R. (1980): ‘Degenerative joint disease in weight-lifters fact or fiction?’Brit. J. Sports. Med.,14, pp. 97–101
Friedrich, J. A., andBrand, R. A. (1990): ‘Muscle fiber architecture in the human lower limb,’J. Biomech.,23, pp. 91–95
Garhammer, J. (1989): ‘Weight lifting and training’in Vaughan, C. L. (Ed.): ‘Biomechanics of sport’, (CRC Press, Inc., Boca Raton, FL) pp. 169–211
Grenier, R. andGuimont, A. (1983): ‘Simultaneous bilateral rupture of the quadriceps tendon and leg fractures in a weightlifter’,Am. J. Sports. Med.,11, pp. 451–453
Hirokawa, S., Solomonow, M., Luo Z., Lu, Z., andD’Ambrosia, R. (1991): ‘Muscle co-contraction and control of knee stability,’J. Electromyogr. Kinesiol.,1, pp. 199–208
Ikai, M., andFukunaga, T. (1970): ‘A study of training effects on strength per unit cross-sectional area of muscle by means of ultrasonic measurement,’International Zeitschrift fur angewandte Physiologie,28, pp. 173–180
Jefferson, R. J., Collins, J. J., Whittle, M. W., Radin, E. L., andO’Connor, J. J. (1990): ‘The role of quadriceps in controlling impulsive forces around heelstrike,’Proc. Inst. Mech. Eng. J. Engng. Med.,204, pp. 21–28
Johns, L., Sargeant, A. J., andWhittle, M. W. (1985): ‘The measurement of external knee moment during weight-lifting,’J. Physiol.,365, p. 9
Lander, J. E., Bates, B. T., andDevita, P. (1986): ‘Biomechanics of the squat exercise using modified center of mass bar,’Med. Sci. Sports Exerc.,18, pp. 469–478
McLaughlin, T. M., Lardner, T. J., andDillman, C. J. (1977): ‘A kinematic model of the performance in the parallel squat by champion powerlifters,’Med. Sci. in Sports,9, pp. 128–133
McLaughlin, T. M., Lardner, T. J., andDillman, C. J. (1978): ‘Kinetics of the parallel squat,’The Research Quarterly,49, pp. 175–188
Nigg, B. M. (1985): ‘Biomechanics, load analysis and sports injuries in the lower extremities,’Sports Med.,2, pp. 367–379
Noyes, F. R., andGrood, E. S. (1976): ‘The strength of the anterior cruciate ligament in humans and rhesus monkeys,’J. Bone Jt. Surg.,58A, pp. 1074–1082
O’Connor, J., Shercliff, T., andGoodfellow, J. (1988): ‘The mechanics of the knee in the sagittal plane’in Muller, W., andHackenbruck, W. (Eds.): ‘Surgery and arthroscopy of the knee’, Proc. Second Congress European Society for Surgery and Arthroscopy of the Knee, (Springer-Verlag, Berlin) pp. 12–30
O’Connor, J., Shercliff, T., FitzPatrick, D., Biden, E., andGoodfellow, J. (1990a): ‘Mechanics of the knee’in Daniel, D. M., Akeson, W. H., andO’Connor, J. J. (Eds.): ‘Knee ligaments—structure, function, injury, and repair’, (Raven Press, New York) pp. 201–238
O’Connor, J., Biden, E., Bradley, J., FitzPatrick, D., Young, S., Kershaw, C., Daniel, D., andGoodfellow, J. (1990b): ‘The muscle-stabilized knee’in Daniel, D. M., Akeson, W. H., andO’Connor, J. J. (Eds.): ‘Knee ligaments—structure, function, injury, and repair’ (Raven Press, New York) pp. 239–278
Whittle, M. W., Sargeant, A. J., andJohns, L. (1988): ‘Computerised analysis of knee moments during weightlifting’in de Groot, G., Hollander, A. P., Huijing, P. A., andvan Ingen Schenau, G. J. (Eds.): ‘Biomechanics XI-B’, (Free University Press) pp. 885–888
Whittle, M. W. (1991): ‘Gait analysis: an introduction,’ (Oxford, Butterworth-Heinemann, Ltd)
Zernicke, R. F., Garhammer, J., andJobe, F. W. (1977): ‘Human patellar-tendon rupture,’J. Bone Jt. Surg.,59A, pp. 179–183
Zimny, M., Schutte, M., andDabazies, E. (1986): ‘Mechanoreceptors in the human anterior cruciate ligament,’Anat. Rec.,214, pp. 204–209
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Collins, J.J. Antagonistic-synergistic muscle action at the knee during competitive weightlifting. Med. Biol. Eng. Comput. 32, 168–174 (1994). https://doi.org/10.1007/BF02518914
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DOI: https://doi.org/10.1007/BF02518914