Longitudinal Associations Between Isometric Peak Force in Key Pull Positions With Weightlifting Performance in International-Level Female Weightlifters

Joffe, Shaun A. ORCID: https://orcid.org/0000-0002-2234-6278, Read, Paul J ORCID: https://orcid.org/0000-0002-1508-8602, Comfort, Paul ORCID: https://orcid.org/0000-0002-1131-8626, Price, Phil ORCID: https://orcid.org/0000-0001-8849-2959 and Tallent, Jamie ORCID: https://orcid.org/0000-0002-4354-9912 (2026) Longitudinal Associations Between Isometric Peak Force in Key Pull Positions With Weightlifting Performance in International-Level Female Weightlifters. International Journal of Sports Physiology and Performance. pp. 1-7. doi:10.1123/ijspp.2025-0646 (In Press)

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Abstract

Purpose : The aim of this study was to investigate the longitudinal associations between peak force (PF) in the isometric start position pull (ISPP), isometric transition position pull (ITPP), and isometric mid-thigh pull (IMTP) with weightlifting performance. Methods : A retrospective longitudinal analysis was conducted using isometric assessment and performance data collected over a period of up to 3 years from 7 international-level female weightlifters (age 26.8 [7.4] y; body mass 59.9 [7.0] kg). The dependent variables were absolute (Total) and allometrically scaled competition performance (Total a ). The independent variables were absolute (ISPP, ITPP, IMTP) and allometrically scaled (ISPP a , ITPP a , IMTP a ) PF in the 3 pull positions and Time (3-mo intervals). Separate linear mixed models were used to examine their longitudinal associations. Results : The ISPP and ISPP a showed significant positive associations with Total and Total a ( P < .01), explaining 31% and 12% of the variance. Time as a fixed factor was not significant ( P > .05), and reduced models (omitting Time) explained greater variance of 45% and 18%, respectively. The ITPP, IMTP, ITPP a and IMTP a were not significant in full models, yet reduced models identified these as significant predictors ( P < .05) but with poorer model fit. Conclusions : The ISPP demonstrates the strongest and most stable longitudinal predictor of weightlifting performance, supporting its use as a primary assessment for monitoring performance changes.

Item Type:	Article
Article Type:	Article
Uncontrolled Keywords:	maximal strength; neuromuscular; isometric mid-thigh pull; scaling
Subjects:	Q Science > QP Physiology Q Science > QP Physiology > QP301.H75 Physiology. Sport
Divisions:	Schools and Research Institutes > School of Education, Health and Sciences
Depositing User:	Charlotte Crutchlow
Date Deposited:	22 Sep 2026 12:28
Last Modified:	22 Sep 2026 12:28
URI:	https://eprints.glos.ac.uk/id/eprint/16485

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