Sit-up

Definition

A sit-up is an abdominal exercise designed to strengthen, tighten, and tone the core muscles.

Scientific / Technical Definition

A sit-up is a physical exercise that primarily works the rectus abdominis, the muscle that runs vertically along the anterior wall of the human abdomen. During the exercise, the person starts in a supine position with the knees bent then lifts their torso to an upright position using their abdominal muscles, and subsequently lowers it back to the starting position.

Benefits

• Improves core strength
• Enhances muscle endurance
• Can help with posture
• Increases flexibility
• Contributes to a flatter stomach

Examples

• Basic sit-up
• Weighted sit-up
• Incline sit-up
• Decline sit-up

Additional Information

• Effects: Regular sit-up exercises can help improve overall abdominal strength and functionality, which can support better posture and stability.

Related Terms

• Crunch
• Plank
• Core exercises
• Ab workout

References

• The Benefits of Sit-ups, According to Science
• A Study on the Effects of Sit-up Exercises on Core Strength