The stiff leg deadlift (SLDL) and Romanian deadlift (RDL) are both hip hinge movements but have unique histories and training purposes. SLDL targets the posterior chain with minimal knee bend. RDL was developed by Romanian weightlifters to improve pull strength and technique.
Recent EMG data (2025-2026) indicate RDL activates glutes 12% more, while SLDL increases hamstring recruitment by 18%. Both outperform standard deadlifts for posterior chain engagement. (Source: Journal of Strength & Conditioning Research 2026)
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