Identifying the Primary Kinetic Factors Influencing the Anterior–Posterior Center of Mass Displacement in Barbell Squats: A Factor Regression Analysis

Background: Barbell squats are commonly used in strength training, but the anterior–posterior displacement of the Center of Mass (COM) may impair joint stability and increase injury risk. This study investigates the key factors influencing COM displacement during different squat modes.; Methods: Thi...

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Main Authors: Diwei Chen, Dong Sun, Fengping Li, Dongxu Wang, Zhanyi Zhou, Zixiang Gao, Yaodong Gu
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Sensors
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Online Access:https://www.mdpi.com/1424-8220/25/2/572
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author Diwei Chen
Dong Sun
Fengping Li
Dongxu Wang
Zhanyi Zhou
Zixiang Gao
Yaodong Gu
author_facet Diwei Chen
Dong Sun
Fengping Li
Dongxu Wang
Zhanyi Zhou
Zixiang Gao
Yaodong Gu
author_sort Diwei Chen
collection DOAJ
description Background: Barbell squats are commonly used in strength training, but the anterior–posterior displacement of the Center of Mass (COM) may impair joint stability and increase injury risk. This study investigates the key factors influencing COM displacement during different squat modes.; Methods: This study recruited 15 male strength training enthusiasts, who performed 60% of their one-repetition maximum (1RM) in the Front Barbell Squat (FBS), High Bar Back Squat (HBBS), and Low Bar Back Squat (LBBS). Joint moments at both the hip, knee, and ankle were collected using a motion capture system and force plates, and a factor regression analysis was conducted using SPSS.; Results: In the FBS, primary factors influencing COM displacement included right knee adduction–abduction (38.59%), knee flexion–extension (31.08%), and hip internal–external rotation (29.83%). In the HBBS, they were right ankle internal–external rotation (19.13%), hip flexion–extension (−19.07%), and left knee flexion–extension (19.05%). In the LBBS, the key factors were left knee adduction–abduction (27.82%), right ankle internal–external rotation (27.59%), and left ankle internal–external rotation (26.12%).; Conclusion: The study identifies key factors affecting COM displacement across squat modes, with knee flexion–extension being dominant in the FBS and hip moments more significant in the HBBS and LBBS. These findings have implications for optimizing squat training and injury prevention strategies.
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spelling doaj-art-a4e084ff43424dcfb0936fa07da66b192025-01-24T13:49:24ZengMDPI AGSensors1424-82202025-01-0125257210.3390/s25020572Identifying the Primary Kinetic Factors Influencing the Anterior–Posterior Center of Mass Displacement in Barbell Squats: A Factor Regression AnalysisDiwei Chen0Dong Sun1Fengping Li2Dongxu Wang3Zhanyi Zhou4Zixiang Gao5Yaodong Gu6Faculty of Sports Science, Ningbo University, Ningbo 315211, ChinaFaculty of Sports Science, Ningbo University, Ningbo 315211, ChinaFaculty of Sports Science, Ningbo University, Ningbo 315211, ChinaFaculty of Sports Science, Ningbo University, Ningbo 315211, ChinaFaculty of Sports Science, Ningbo University, Ningbo 315211, ChinaFaculty of Kinesiology, University of Calgary, Calgary, AB T2N 1N4, CanadaFaculty of Sports Science, Ningbo University, Ningbo 315211, ChinaBackground: Barbell squats are commonly used in strength training, but the anterior–posterior displacement of the Center of Mass (COM) may impair joint stability and increase injury risk. This study investigates the key factors influencing COM displacement during different squat modes.; Methods: This study recruited 15 male strength training enthusiasts, who performed 60% of their one-repetition maximum (1RM) in the Front Barbell Squat (FBS), High Bar Back Squat (HBBS), and Low Bar Back Squat (LBBS). Joint moments at both the hip, knee, and ankle were collected using a motion capture system and force plates, and a factor regression analysis was conducted using SPSS.; Results: In the FBS, primary factors influencing COM displacement included right knee adduction–abduction (38.59%), knee flexion–extension (31.08%), and hip internal–external rotation (29.83%). In the HBBS, they were right ankle internal–external rotation (19.13%), hip flexion–extension (−19.07%), and left knee flexion–extension (19.05%). In the LBBS, the key factors were left knee adduction–abduction (27.82%), right ankle internal–external rotation (27.59%), and left ankle internal–external rotation (26.12%).; Conclusion: The study identifies key factors affecting COM displacement across squat modes, with knee flexion–extension being dominant in the FBS and hip moments more significant in the HBBS and LBBS. These findings have implications for optimizing squat training and injury prevention strategies.https://www.mdpi.com/1424-8220/25/2/572barbell squatCenter of Mass (COM)joint momentfactor regression analysis
spellingShingle Diwei Chen
Dong Sun
Fengping Li
Dongxu Wang
Zhanyi Zhou
Zixiang Gao
Yaodong Gu
Identifying the Primary Kinetic Factors Influencing the Anterior–Posterior Center of Mass Displacement in Barbell Squats: A Factor Regression Analysis
Sensors
barbell squat
Center of Mass (COM)
joint moment
factor regression analysis
title Identifying the Primary Kinetic Factors Influencing the Anterior–Posterior Center of Mass Displacement in Barbell Squats: A Factor Regression Analysis
title_full Identifying the Primary Kinetic Factors Influencing the Anterior–Posterior Center of Mass Displacement in Barbell Squats: A Factor Regression Analysis
title_fullStr Identifying the Primary Kinetic Factors Influencing the Anterior–Posterior Center of Mass Displacement in Barbell Squats: A Factor Regression Analysis
title_full_unstemmed Identifying the Primary Kinetic Factors Influencing the Anterior–Posterior Center of Mass Displacement in Barbell Squats: A Factor Regression Analysis
title_short Identifying the Primary Kinetic Factors Influencing the Anterior–Posterior Center of Mass Displacement in Barbell Squats: A Factor Regression Analysis
title_sort identifying the primary kinetic factors influencing the anterior posterior center of mass displacement in barbell squats a factor regression analysis
topic barbell squat
Center of Mass (COM)
joint moment
factor regression analysis
url https://www.mdpi.com/1424-8220/25/2/572
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