Soriano, M. A., Jiménez-Ormeño, E., Lake, J. P., McMahon, J., Gallo-Salazar, C., Mundy, P. and Comfort, P. (2024) Kinetics and kinematics of the push press, push jerk, and split jerk. Journal of Strength and Conditioning Research, 38 (8). pp. 1359-1365. ISSN 1064-8011
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Abstract
Soriano, MA, Jiménez-Ormeño, E, Lake, JP, McMahon, JJ, Gallo-Salazar, C, Mundy, P, and Comfort, P. Kinetics and kinematics of the push press, push jerk, and split jerk. J Strength Cond Res 38(8): 1359–1365, 2024—The aim of this study was to explore the kinetics and kinematics across incremental loads with the push press (PP), push jerk (PJ), and split jerk (SJ). Eighteen resistance-trained men performed the 1 repetition maximum (1RM) tests (visit 1) 3–7 days before an incremental loading protocol (60, 75, and 90% 1RM) of the 3 exercises (visit 2). Kinetics and kinematics were derived from force-time data and compared using a repeated-measures analysis of variance with load and exercise as within-subject factors. Dependent variables for the biomechanics assessment were categorized as output (power and impulse), driver (force and work), and strategy (displacement and duration) metrics. The interrepetition reliability was assessed using the intraclass correlation coefficient and coefficient of variation. The PP, PJ, and SJ 1RM performance were 89.7 ± 15.4, 95.6 ± 14.4, and 103.0 ± 16.9 kg, respectively. Driver, strategy, and outcome metrics displayed moderate-to-excellent (intraclass correlation coefficient: 0.58–0.98) reliability with acceptable variability (% coefficient of variation: 2.02–10.00). Increased load resulted in significantly large increases in force, work, displacement, duration, power, and impulse (p < 0.001, ηp2 = 0.534–0.903). Exercise selection had a significant and large effect on power, impulse, work, and force (p < 0.016, ηp2 = 0.387–0.534). There was a significant and large effect of load × exercise interaction on work, displacement, and duration (p < 0.019, ηp2 = 0.158–0.220). Practitioners are encouraged to use heavier loads (90 > 75 > 60% 1RM) during the SJ exercise to maximize output, driver, and strategy kinetics and kinematics.
Publication Type: | Articles |
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Uncontrolled Keywords: | biomechanics, force, impulse, power development, weightlifting |
Subjects: | G Geography. Anthropology. Recreation > GV Recreation Leisure > GV557 Sports G Geography. Anthropology. Recreation > GV Recreation Leisure > GV557 Sports > GV711 Coaching Q Science > QP Physiology |
Divisions: | Academic Areas > Institute of Sport > Area > Sports Biomechanics and Sports Therapy Research Entities > Centre for Health and Allied Sport and Exercise Science Research (CHASER) |
Depositing User: | Jason Lake |
Date Deposited: | 24 Sep 2024 11:56 |
Last Modified: | 24 Sep 2024 11:56 |
URI: | https://eprints.chi.ac.uk/id/eprint/7743 |