Functional Training Institute

The Hidden Science of Kettlebell Swings: Part 3

Part 3 In this week’s video, we’re looking at an often-overlooked piece of the kettlebell swing—the medial hamstrings. They play a key role in knee stability and ACL protection, but are you engaging them effectively?

While many focus on glutes and spinal erectors during the swing, this episode dives into how medial hamstring activation supports knee integrity, ACL protection, and posterior chain efficiency—and why your stance, hip hinge depth, and swing mechanics matter more than you think.

✅ How kettlebell swings recruit medial hamstrings
✅ The surprising link between swings and ACL injury prevention
✅ What EMG studies show when comparing swings to Romanian deadlifts
✅ Real-world applications for rehab, prehab, and performance training

This is a must-watch if you’re coaching kettlebells or using them for functional training and rehabilitation.

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