Build functional strength and challenge your body in entirely new ways.

All products featured on Self are independently selected by Self editors. However, when you buy something through our retail links, Condé Nast may earn an affiliate commission. Ask a physical ...

The squat exercise is nothing new. It has been around for a 100 years and will probably be around for hundreds more. However, there are many variations of the squat that can be tried to drive ...

Ask a physical therapist how you can subtly level up your workouts, and they’ll probably recommend trying the best BOSU balls (and other types of balance trainers). If you’re unfamiliar, BOSU stands ...