Stop doing 100s of sit-ups to build strong, stable abs. McGill curl-ups are elite, and here's how to do them

McGill curl-ups, or modified curl-ups, are much friendlier for your lower back than moves like sit-ups, as your lower back is ...
Lose It! on MSN

Why your ribs hurt after doing sit-ups and what’s normal

Is it muscle soreness or something much more serious? Experts explain how to determine the cause and when to seek medical ...
Rolling Out

Core training: Why your sit-ups are failing you

The sit-up has dominated workout routines for decades, but fitness professionals increasingly question whether this familiar movement deserves its place in modern training programs. The issue isn’t ...
Women's Health

Sit-ups vs crunches: The core exercise that actually builds stronger abs

If you’re a little hazy on the difference between sit-ups vs. crunches, you’re not alone. They both strengthen your core, but the details on how they differ and the benefits of each can be confusing. ...
Health on MSN

How long should you be able to hold a wall sit? Test your fitness level and see how you compare

Fact checked by Nick Blackmer Most people can hold a wall sit for 30–60 seconds, while trained athletes may sustain the ...