Cardiorespiratory and Aerobic Demands of Squat Exercise

Author:

Hong Sunghyun1,Oh Minsuk1,Oh Chang-Geun1,Lee Hae-Dong1,Suh Sang-Hoon1,Park Hyon2,Lalande Sophie3,Tanaka Hirofumi3,Jeon Justin Y.1

Affiliation:

1. Yonsei University

2. Kyung Hee University

3. The University of Texas at Austin

Abstract

Abstract

Squatting, a traditional resistance exercise classified as strength training, relies on anaerobic pathways, but its aerobic aspects remain unclear. We examined heart rate and oxygen demand during squats, exploring variations across different strength statuses. It fills gaps in understanding the cardiorespiratory effects of squatting, especially during multiple sets. Twenty-two young healthy resistance trained men (age: 28±4 years) participated. Maximal oxygen consumption (V̇O2max) and 1 repetition maximum (RM) of squat were measured. Participants performed 5 sets of squat exercises at 65% of 1RM for 10 repetitions with 3-min rest intervals. Heart rate and pulmonary gas exchange were measured during the squat exercise. Participants were divided into high strength (HS) and low strength (LS) groups based on a median split of their 1 RM squat values. During 5 sets of squat exercise, oxygen consumption (V̇O2) increased up to 47.8 ± 8.9 ml/kg/min, corresponding to 100.6% of predetermined V̇O2max. The HS group achieved a greater highest point of V̇O2 in relation to V̇O2max than the LS group (108.0 vs. 93.7%). During the exercise intervals, V̇O2 exceeded V̇CO2, while during the rest intervals, V̇CO2 surpassed V̇O2. Our findings suggest that the oxygen demand during squatting is notably substantial, which may vary according to the training status.

Publisher

Springer Science and Business Media LLC

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