If You Can Do This Many Sit-Ups in 60 Seconds, You're in Great Shape
A trainer explains how many sit-ups you should be able to do in 60 seconds to signal peak fitness and how to boost your ...
Sit-Ups Vs. Crunches: Which Exercise Is Better And How To Do Each With Proper Form
If you’re a little hazy on the difference between sit-ups vs. crunches, you’re not alone. They both strengthen your core, but ...
Tom's Guide1mon
Forget sit-ups — you only need these 5 moves to build a stronger core and boost your posture
Sit-ups are great for strengthening the core but doing sit-up after sit-up gets a little boring and it's important to mix up the moves you use to train your core. With this in mind, we've found a ...