Medicine Ball Crunch
- Músculo objetivo
- —
- Equipamiento
- Medicine Ball
- Parte del cuerpo
- Waist
- Tipo
- Strength
The medicine ball crunch is a core strength exercise that targets the abdominal muscles by adding load to a standard crunch. Holding a medicine ball on your chest or overhead increases the resistance your abs must work against, making it a straightforward progression from bodyweight crunches for building waist and core strength.
Cómo hacer el Medicine Ball Crunch
- 1Lie on your back with your knees bent and feet flat on the floor, hip-width apart.
- 2Hold the medicine ball against your chest with both hands, or extend it overhead for greater difficulty.
- 3Engage your core by gently pressing your lower back toward the floor.
- 4Tuck your chin slightly toward your chest without forcing it down.
- 5Curl your upper back off the floor by contracting your abdominals, lifting your shoulder blades clear of the ground.
- 6Pause briefly at the top of the movement, keeping tension in your abs.
- 7Lower your upper back slowly back to the floor under control.
- 8Repeat for the desired number of reps without letting momentum drive the movement.
Consejos de técnica
- Lead the movement with your sternum rising toward the ceiling, not with your neck pulling forward.
- Keep your lower back in contact with the floor throughout — this isolates your abs and protects your lumbar spine.
- Exhale as you curl up and inhale as you lower back down to maintain steady intra-abdominal pressure.
- Choose a medicine ball weight that lets you complete your reps with a controlled tempo, not one so light it adds no challenge or so heavy it causes you to yank your neck.
Errores comunes
- Pulling on your neck or chin to get up, which strains the cervical spine and takes work away from your abs.
- Using momentum to swing the medicine ball up rather than contracting the abs, which reduces the training stimulus.
- Raising your lower back off the floor, which turns the movement into a partial sit-up and shifts stress away from the target muscles.
- Holding your breath throughout the set, which increases blood pressure and reduces your stability and endurance.
- Choosing a ball that is too heavy and shortening the range of motion as a result — use a weight that allows a full, controlled curl.
Preguntas frecuentes
What does the medicine ball crunch work?
It targets the abdominal muscles along the waist, primarily the rectus abdominis (the muscles that flex the spine). The added weight of the medicine ball increases the resistance compared to a standard crunch.
Where should I hold the medicine ball during the crunch?
Holding it against your chest is the standard starting position. Extending it overhead with straight arms makes the lever longer and significantly increases the load your abs must manage, so start on your chest and progress from there.
How heavy a medicine ball should I use?
Start light — a 4 to 6 lb ball is appropriate for most beginners. You should be able to complete each rep with a slow, controlled tempo and full range of motion. Increase the weight only when that feels easy.
How is a medicine ball crunch different from a regular crunch?
A regular crunch relies on bodyweight alone. The medicine ball adds external resistance, forcing your abs to produce more force on every rep. This makes it a useful progression once bodyweight crunches feel too easy.
How many reps should I do?
For general core strength, 3 sets of 10 to 15 reps is a reasonable starting point. Adjust the ball weight so the last few reps of each set are challenging but your form stays clean.
