Title

Comparison between back squat, Romanian deadlift, and barbell hip thrust for leg and hip muscle activities during hip extension

Document Type

Journal Article

Publication Title

Journal of Strength and Conditioning Research

ISSN

1533-4287

Volume

33

Issue

10

First Page

2595

Last Page

2601

PubMed ID

31356511

Publisher

Wolters Kluwer

School

School of Medical and Health Sciences / Center for Exercise and Sports Science Research

RAS ID

29690

Comments

Originally published as: Delgado, J., Drinkwater, E. J., Banyard, H. G., Haff, G. G., & Nosaka, K. (2019). Comparison between back squat, Romanian deadlift, and barbell hip thrust for leg and hip muscle activities during hip extension. Journal of Strength and Conditioning Research, 33(10), 2595-2601.

Original article available here.

Abstract

This study compared muscle activities of vastus lateralis (VL), biceps femoris (BF), and gluteus maximus (GM) during the back squat (SQ), Romanian deadlift (RDL), and barbell hip thrust (BHT) exercises performed with the same load (60 kg) and at one repetition maximum (1RM). Eight men with a minimum of 1 year's lower-body strength training experience performed the exercises in randomized order. Before each exercise, surface electromyography (EMG) was recorded during a maximal voluntary isometric contraction (MVIC) and then used to normalize to each muscle's EMG during each trial. Barbell hip thrust showed higher GM activity than the SQ (effect size [ES] = 1.39, p = 0.038) but was not significantly different from RDL (ES = 0.49, p = 0.285) at 1RM. Vastus lateralis activity at 1RM during the SQ was significantly greater than RDL (ES = 1.36, p = 0.002) and BHT (ES = 2.27, p = 0.009). Gluteus maximus activity was higher during MVIC when compared with the 60 kg load for the SQ (ES = 1.29, p = 0.002) and RDL (ES = 1.16, p = 0.006) but was similar for the BHT (ES = 0.22, p = 0.523). There were no significant differences in GM (ES = 0.35, p = 0.215) and BF activities (ES = 0.16, p = 0.791) between 1RM and MVIC for the SQ. These findings show that the RDL was equally as effective as the BHT for isolating the hip extensors, while the SQ simultaneously activated the hip and knee extensors.

DOI

10.1519/JSC.0000000000003290

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