Author(s): Shiny Raizada, Amritashish Bagchi

Abstract:
This study aimed at muscles activation analysis of lower back (erector spinae) L1 Paraspinal and L5 Paraspinal muscles while performing two types of squats, i.e. front (full & half) and back (full & half) squats. Ten male weight lifters (21.6 ± 2.22 years) performed 1 repetition of four different squats. The maximum voluntary contraction (MVC) was recorded with the help of biograph infinity software (EMG). Surface ElectroMyoGraphy (SEMG) was used for measuring muscle electrical activity that occurs during muscle contraction. The four different squats were back full squat (BFS), back half squat (BHS), front full squat (FFS) and front half squat (FHS). The results of the study reveal that no statistical differences were found in comparing the two types of squats (Back and Front). It means both the squats have similar pattern of muscle activation in lower back (erector spinae) with same load.

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