Sit-up exercise instructions and video

The sit-up is a hip-and-waist-flexion exercise that targets your rectus abdominis and synergistically activates several hip and waist muscles.

Exercise Tutorial - V-Up

Doing Weighted Situps for Your Abs, Back, Hips, and Chest

Janda Sit-Up Exercise Guide and Videos – Fitness Volt

Roman chair sit-up exercise instructions and video

4 Ways to Do Sit Ups - wikiHow

Exercise Tutorial - V-Up

3 4 Sit up - Video Guide

Exercise Tutorial: Sit-Up

Sit-ups – WorkoutLabs Exercise Guide

How To Do A WEIGHTED SWISS BALL SIT UP