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All Journal Bima Loka: Journal of Physical Education
Deny Pradana Saputro
Pendidikan Jasmani Kesehatan dan Rekreasi, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Riau, Pekanbaru, Riau, Indonesia
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Back muscle strength and trunk extension: are they related in physical sport students? Deny Pradana Saputro; Nagoor Meera Abdullah; Hilmy Aliriad; Alan Alfiansyah Putra Karo-Karo; Boby Helmi
Bima Loka: Journal of Physical Education Vol 6 No 1 (2025): November
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/bimaloka.v6i1.48537

Abstract

This study aimed to determine the relationship between back muscle strength and trunk and neck extension ability in Physical Sport students. Back muscle strength was measured using a Back Dynamometer (Back-D), while trunk and neck extension ability was measured using an Extension Dynamometer (Extension-D). This study used a cross-sectional correlational design with a sample of 38 students who met the inclusion criteria. The measurement procedure was carried out twice for each instrument, and the highest value was used for analysis. The Shapiro–Wilk normality test showed that all data were normally distributed (p > 0.05). The linearity test produced an R² value of 0.0007, indicating no linear relationship between the two variables. The Spearman correlation test was then used and showed no significant relationship between back muscle strength and trunk and neck extension ability (ρ = –0.030; p = 0.860). The results of this study confirm that these two physical capacities are independent domains and do not directly influence each other. Thus, the Back-D and Extension-D cannot be used interchangeably in evaluating trunk function, and each instrument must be applied according to the measurement objectives.
Co-Authors Alan Alfiansyah Putra Karo-Karo Boby Helmi Hilmy Aliriad Nagoor Meera Abdullah