This article breaks down sit-up variations for every fitness level—beginner, intermediate, and advanced, to boost core ...

These personal trainer-recommended chair exercises help build functional strength and maintain muscle as you age, plus all ...

Sit-ups are a simple bodyweight exercise. Here's how to perform sit-ups safely, according to experts, and the muscles worked, along with the benefits.

Set Core Plan that builds strength & definition faster than 100 sit-ups a day. Efficient, science-backed core training awaits ...

Over the last year I've swapped my regular sit-ups for the five kettlebell moves in the video below, by certified personal trainer Deanna O'Donnell (@DeannaODFit), and the results have been ...

FBI Everyone gets a minute to complete as many sit-ups as possible — a momentary pause means the test is over. At least one point must be earned in the sit-up portion of the fitness test.