Metabolic Responses of Eccentric Accentuated Flywheel Squats by a Multi-set Protocol with Increasing Loads

Abstract

Inertia-based resistance exercise with flywheels leads to strong acute metabolic responses. However, the metabolic kinetics during a multi-set flywheel squat protocol with increasing loads remains unknown. The aim of the study was to assess the course of blood lactate concentrations (BLC), oxygen uptake (VO₂), heart rate (HR) and power during a multi-set protocol of flywheel squat training. Seventeen recreationally trained healthy men (24.3±3.8 years, BMI 24.1±2.2, VO_2max 49.4±6.9 mL/min/kg) completed 5 sets and 15 repetitions flywheel squats. The BLC (ŋ²=0.932), VO₂ (ŋ²=0.899) and HR (ŋ²=0.879) increased significantly over the sets (P<0.05). %HR_max and %VO_2max increased significantly from pre to post-loading (P <0.001), reaching a threshold of 80% HR_max after set 2 and 60% VO_2max after set 4, respectively. The power parameters P_MEAN (ŋ²=0.191), P_ECC (ŋ²=0.149) and P_CON (ŋ²=0.062) showed significant decreases after set 2 (P<0.05). A multi-set flywheel squat protocol with increasing loads leads to high metabolic and cardiorespiratory demands, which appear to increase linearly with an increase in inertial load.

Keywords

Resistance training / Eccentric / Blood lactate / Oxygen uptake / Power

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Funding

Technische Universität Chemnitz (3137)

RIGHTS & PERMISSIONS

The Author(s)