All those social media fitness influencers will have you believe that sit-ups are non-negotiable for building a chiseled six-pack. However, this is far from the truth. In fact, you could be doing more ...
All you need to do wall sits is a wall, and you can also modify them based on your strength. If you're new to quad work, start with a smaller bend in your knees than a 90-degree angle, and slowly work ...