"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." All it takes is a tweak or two, and virtually any exercise for any muscle group can instantly become a ...

Incorporating SIT sessions into your fitness routine can help boost your cardiovascular health and athletic ability. Emilija Manevska via Getty Images If you’ve dabbled in fitness in recent years, you ...

If you’re looking for a way to boost your athletic performance, calorie burn, and fitness level, you may want to consider sprint interval training (SIT). Similar to high intensity interval training ...

When most people think of a strong core or achieving abs, the first exercise that comes to mind is often sit-ups. While sit-ups have long been a go-to for strengthening the core, they're not always ...

This ridiculously hard L-sit exercise works your entire body without moving a muscle. These are the progressions you can use to get strong enough to do it. Everyone likes a good challenge. That’s why ...

Sit-ups have seemingly been a staple in our training programmes since time began. Despite their omnipresence, they are perhaps one of the most hated exercises to grace our Google searches, aside from ...

All the Latest Game Footage and Images from Sit-Ups Workout Are you ready for the 250 Sit-Ups Challenge? Body shaping is always good for our body. These workouts are perfect for men and women, ...