Sit-Up
Description
The sit-up is the classic full-range abdominal exercise. The torso lifts all the way off the floor, with the elbows reaching up toward the knees. It engages the rectus abdominis through a full range and adds work to the hip flexors. It remains a foundational core movement.
Muscle Group
Equipment Required
Sit-Up Instructions
- Lie on your back with knees bent and feet flat on the floor.
- Cross your arms over your chest or place hands behind your head.
- Brace your core and tuck your chin slightly.
- Curl your torso up and forward off the floor.
- Continue until your torso is upright or near-vertical.
- Pause briefly at the top.
- Lower your torso back down with control.
- Reset and repeat.
Sit-Up Form & Visual
Sit-Up Benefits
- Classic full-range ab exercise
- Builds the rectus abdominis
- Engages the hip flexors
- No equipment required
- Easy to scale or progress
- Foundational core movement
Sit-Up Muscles Worked
- Rectus abdominis
- Hip flexors
- Obliques
Sit-Up Variations & Alternatives
- Crunch
- V-Up
- Decline Sit-Up
- Weighted Sit-Up
