To help athletes and regular gym-goers build muscle safely and avoid injuries, coaches need to deeply understand how the squat moves through the body and the forces involved at each joint.

When you perform a squat, your legs and back joints create a lot of complex forces that work together. To keep your form correct and spread the weight evenly, your nervous system and muscles have to work in perfect sync.

By carefully studying how people move during squats, coaches can create better training plans that help athletes perform better and improve over time. This means using real movement data to give smarter coaching advice instead of just guessing.