Load absorption force-time characteristics following the second pull of weightlifting derivatives

Suchomel, Timothy J., Lake, Jason P. and Comfort, Paul (2016) Load absorption force-time characteristics following the second pull of weightlifting derivatives. Journal of Strength and Conditioning Research. ISSN 1064-8011

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Abstract

The purpose of this study was to compare the load absorption force-time characteristics of weightlifting catching and pulling derivatives. Twelve resistance-trained men performed repetitions of the hang power clean (HPC), jump shrug (JS), and hang high pull (HHP) on a force platform with 30, 45, 65, and 80% of their one repetition maximum (1RM) HPC. Load absorption phase duration, mean force, and work were calculated from the force-time data. The HHP produced a significantly longer load absorption phase duration compared to the HPC (p < 0.001, d = 3.77) and JS (p < 0.001, d = 5.48), while no difference existed between the HPC and JS (p = 0.573, d = 0.51). The JS produced significantly greater load absorption mean forces compared to the HPC (p < 0.001, d = 2.85) and HHP (p < 0.001, d = 3.75), while no difference existed between the HPC and HHP (p = 0.253, d = 0.37). Significantly more load absorption work was performed during the JS compared to the HPC (p < 0.001, d = 5.03) and HHP (p < 0.001, d = 1.69), while HHP load absorption work was also significantly greater compared to the HPC (p < 0.001, d = 4.81). The weightlifting pulling derivatives examined in the current study (JS and HHP) produced greater load absorption demands following the second pull compared to the weightlifting catching derivative (HPC). The JS and HHP may be used as effective training stimuli for load absorption during impact tasks such as jumping.

Item Type: Article
Uncontrolled Keywords: hang power clean, jump shrug, hang high pull, eccentric loading, catch phase
Subjects: Q Science > QM Human anatomy
Q Science > QP Physiology
Divisions: Departments > Sport and Exercise Sciences
Depositing User: Jason Lake
Date Deposited: 16 Jan 2017 13:51
Last Modified: 30 Jul 2018 11:32
URI: http://eprints.chi.ac.uk/id/eprint/2331

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