Type: Isolation
Primary Muscles: Hamstrings
Secondary Muscles: Lower Back
Exercise Key Form:
1. Stand tall, core engaged.
2. Curl heel toward glute, keeping knee aligned.
3. Squeeze hamstrings at the top, then lower slowly.
NASM-CPT Tip: Avoid momentum; slow and controlled reps maximize hamstring activation.
Why This Exercise Is Important: Strengthens hamstrings for improved sprinting and jumping while reducing injury risk.
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