If you want to make your legs work hard, try adding a weight to your wall sits. This isn’t my first wall sit challenge — I’ve tried a week of unweighted wall sits, as well as a single-leg wall sit, and I approached this one with trepidation, knowing it was going to be painful.
That said, I’m always keen for a challenge, and wall sits are one of the best moves I’ve found for building leg muscle. The wall sit is an excellent example of the benefits of time under tension — that is holding a muscle under resistance for a period of time to really force the muscle to work hard and grow.
