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.

Assisted Sit-Up - Video Guide

Sit-Ups Benefits: Exercises, Variations, and More

DMoose Ab Exercise Mat - Sit Up Workout Pad for Abdominal & Core Workout Training – Situp Assist Device for Full Range of Ab Workouts - Exercise pad for crunches

Weighted Decline Sit-up - Video Guide

Sit Up: Video Exercise Guide & Tips

Dumbbell Straight Arm Twisting Sit-up - Video Guide

L-sit pull-up exercise instructions and video

Sit-ups – WorkoutLabs Exercise Guide

How to Make Sit-Ups Supremly Safe and Effective

Janda Sit-Up Exercise Guide and Videos – Fitness Volt

Situps Vs. Crunches: Which Is Better For Strong Abs, Per Trainers

L-Sit Pull Up: Video Exercise Guide & Tips

How to Do an Oblique Sit Up: 12 Steps (with Pictures) - wikiHow

Multiple Purpose - 21 exercise modes can be done with this AB Crunch. A real All-In-One equipment for any home Installation Free - A big convenience

Signature Fitness Ab Crunch Total Body Workout with Resistance Bands, Instruction DVD and Exercise Guide Chart : Sports & Outdoors

How to do a Curl Up: Health e-University