Crunches vs Leg Raises: Which Is Better?
Crunches and leg raises are both popular core exercises. Here's how they compare and when to use each one.
Side-by-Side Comparison
| Attribute | Crunches | Leg Raises |
|---|---|---|
| Primary Muscles | Rectus Abdominis | Lower Abdominals, Hip Flexors |
| Secondary Muscles | Obliques | Rectus Abdominis, Obliques |
| Difficulty | Beginner | Intermediate |
| Equipment | None (bodyweight) | None (bodyweight) |
| Calories/Min | ~5 cal | ~5 cal |
| Category | Core | Core |
| Fitnit AI Tracked | Yes | No |
When to Choose Crunches
Crunches are a classic abdominal exercise that isolates the rectus abdominis. When performed correctly, they're an effective way to build core strength and muscular endurance.
Choose crunches when you want to target your rectus abdominis without any equipment. Rated beginner difficulty, burning ~5 cal/min.
Key Benefits
- Targets the rectus abdominis specifically
- Low impact and beginner-friendly
- No equipment required
- Can be performed anywhere
When to Choose Leg Raises
Leg raises target the often-neglected lower portion of the abdominals and hip flexors. They're one of the most effective exercises for building lower ab strength and definition.
Choose leg raises when you want to target your lower abdominals and hip flexors without any equipment. Rated intermediate difficulty, burning ~5 cal/min.
Key Benefits
- Targets lower abdominals specifically
- Improves hip flexor strength
- Builds core endurance
- No equipment required for floor version
Can You Combine Them?
Crunches and leg raises work great together. Since they target the same group from different angles, combining them creates a well-rounded session.
Sample superset: Do a set of crunches, rest 30s, then leg raises. Rest 60-90s and repeat 3-4 rounds.
Frequently Asked Questions
Are crunches or leg raises better for beginners?
Crunches is more beginner-friendly.
Which burns more calories?
Both burn approximately 5 calories per minute.
Can I do both in the same workout?
Yes! They complement each other well since they target the same muscle group from different angles.
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