MODELLING MUSCLE FORCE DISTRIBUTIONS DURING THE FRONT AND BACK SQUAT IN TRAINED LIFTERS
Journal Title: Central European Journal of Sport Sciences and Medicine - Year 2016, Vol 14, Issue 2
Abstract
The barbell squat is a fundamental strength and conditioning exercise, with two principal variants; back and front. Whilst previous studies have examined the mechanical differences of the front and back squat, there is no information comparing the distributions of muscle forces between these variants. This study aimed to compare estimated forces developed by the primary skeletal muscles used in the front and back squat. Twenty-five male participants were recruited with 6.24 ±2.21 years of experience in squat lifting and 1 repetition maximum values of 127.5 ±18.8 and 90.6 ±14.4 kg for the back and front squat lifts. Participants completed both back and front squats at 70% of their front squat 1 repetition maximum. Muscle forces were determined during dynamic situations using motion capture data, in addition to sagittal plane kinematics. Differences between squat conditions were examined using a multivariate analysis of variance. The kinematic analysis showed that the back squat was associated with significantly (p < 0.05) greater flexion of the trunk. Examination of muscles forces indicated that erector spinae forces were also significantly (p < 0.05) larger in the back squat. No significant differences were identified for skeletal muscle forces elsewhere (p > 0.05). Our results indicate that neither the front nor back squat provides any marked difference in muscle force production, aside from that isolated to the lower back. These findings lead the conclusion that neither the front nor back squat conditions confer any additional benefits over the other in terms of the skeletal muscle force output.
Authors and Affiliations
Jonathan Sinclair, Stephen Atkins, Vincent Hayley, James D. Richards
Keywords
Related Articles
- EP ID EP204076
- DOI 10.18276/cej.2016.2-02
- Views 51
- Downloads 0
FOREIGN TOURIST ACTIVITY AND THE NEED FOR RECREATION/REST OF ADMINISTRATIVE STAFF FROM SELECTED UNIVERSITIES (AS EXEMPLIFIED BY WEST POMERANIAN VOIVODSHIP)
The purpose of this article is to show the need for recreation in the context of foreign leisure trips of administrative staff of selected universities in zachodniopomorskie (West Pomeranian) voivodship. It is an essenti...
SURGICAL TREATMENT AND REHABILITATION OF TRIGGER THUMB AND FINGER
The aim of the study was to evaluate the results of surgical treatment and rehabilitation of patients with trigger thumb and finger. In 40 patients, comprising 30 women and 10 men aged 26 to 64, a total of 42 cases of tr...
Nutritional Principles of Adolescent Swimmers
Adolescence is a period between age 10 and 19. Intensive changes associated with the development of the organism influence the nutritional needs during this period. Young swimmers’ training is characterized by large volu...
The Effect of 12-week-long Nordic Walking Exercise on Body Composition, Changes in Lipid and Carbohydrate Metabolism Indices, Concentration of Selected Adipokines and Calcidiol in Healthy Middle-aged Women
Research objective. This study aimed at analysing the changes in the level of somatic indicators, the secretion profile of selected adipokines, carbohydrate and lipid metabolism indices and calcidiol concentration after...
THE ASSOCIATIONS OF SELECTED LIFESTYLE PATTERNS AND LUNG CANCER RISK: AN EVIDENCE-BASED UPDATE
Diagnosis of lung cancer (LC) has been fraught with difficulty and by the time of definitive diagnosis, most patients are in later stages of the disease. Epidemiological studies have demonstrated that lifestyle behaviors...