Dataset Information

Quadriceps femoris cross-sectional area and specific leg strength: relationship between different muscles and squat variations.

ABSTRACT:

Background

The aim was to determine the relationship between the cross-sectional area of the quadriceps femoris and strength performance in the deep and parallel barbell squat.

Methods

The sample included 16 university students (seven female, 24.1 ± 1.7 years). Muscle strength was expressed as external load, including the one-repetition maximum and the body mass segments involved (calculated according to Dempster's method). The cross-sectional area of the quadriceps femoris muscles was determined using ultrasound, while leg muscle mass was measured using the Bioelectrical Impedance method.

Results

The cross-sectional areas of the three vastii muscles and leg muscle mass showed moderate to strong correlation with external load in both squat types (r = 0.509-0.873). However, partial correlation (cross-sectional area of quadriceps femoris muscles were controlled) showed significant association only between leg muscle mass and deep squat (r = 0.64, p < 0.05). The cross-sectional area of the vastus lateralis showed a slightly higher correlation with external load in the parallel than in the deep squat (r = 0.67, p < 0.01 vs. r = 0.59, p < 0.05). The regression analysis extracted the vastus medialis cross-sectional area as the most important factor in manifesting strength (parallel squat: R ² = 0.569; deep squat: R ² = 0.499, both p < 0.01). The obtained results suggest that parallel squat strength depends mainly on the cross-sectional area of the vastii muscles, while it seems that the performance in the deep squat requires an additional engagement of the hip and back extensor muscle groups.

SUBMITTER: Kojic F

PROVIDER: S-EPMC8628634 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature

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Publications

Quadriceps femoris cross-sectional area and specific leg strength: relationship between different muscles and squat variations.

Kojic Filip F Ðurić Saša S Ranisavljev Igor I Stojiljkovic Stanimir S Ilic Vladimir V

PeerJ 20211126

<h4>Background</h4>The aim was to determine the relationship between the cross-sectional area of the quadriceps femoris and strength performance in the deep and parallel barbell squat.<h4>Methods</h4>The sample included 16 university students (seven female, 24.1 ± 1.7 years). Muscle strength was expressed as external load, including the one-repetition maximum and the body mass segments involved (calculated according to Dempster's method). The cross-sectional area of the quadriceps femoris muscle ...[more]

PMID: 34900415

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Dataset Information

Quadriceps femoris cross-sectional area and specific leg strength: relationship between different muscles and squat variations.

Background

Methods

Results

Publications

Quadriceps femoris cross-sectional area and specific leg strength: relationship between different muscles and squat variations.

Similar Datasets

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