This study aims to investigate the effects of barbell type (elastic vs. inelastic) and lifting speed on lower limb balance and muscle activation during the Single-Leg Deadlift (SLDL) exercise. Using a randomized crossover design, healthy adults performed SLDL at three different movement speeds while center of pressure (COP) and electromyographic (EMG) responses were measured. The study seeks to determine whether elastic barbells, which create top-down perturbations, enhance neuromuscular control and postural stability more effectively than traditional inelastic barbells.
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Center of Pressure Displacement - Anterior-Posterior (AP)
Timeframe: During single-leg deadlift task (within single session)
Center of Pressure Displacement - Medial-Lateral (ML)
Timeframe: During single-leg deadlift task (within single session)
Muscle Activation of Lower Limb Muscles (%MVIC)
Timeframe: During single-leg deadlift task (within single session)