Crunches

Definition

Crunches are a common core exercise designed to strengthen the abdominal muscles.

Scientific / Technical Definition

Crunches are a strength-training exercise that primarily targets the rectus abdominis muscle. This exercise involves lying on your back and lifting your shoulders off the ground while engaging the core muscles, which increases intra-abdominal pressure and enhances muscular endurance and strength in the abdomen.

Benefits

• Strengthens core muscles
• Improves posture
• Enhances muscular endurance
• Aids in achieving a toned abdomen

Examples

• Basic crunch
• Bicycle crunch
• Oblique crunch

Additional Information

• Effects: Regularly performing crunches can improve core stability and help prevent injuries by providing better support for the spine.

Related Terms

• Sit-ups
• Plank
• Core exercises
• Rectus abdominis

References

• The Effects of Core Stability Exercise on Postural Control
• Abdominal Muscle Activity During Moderate- and High-Intensity Abdominal Exercises