Crunch (arms straight)

Crunch (arms straight)

The crunch is a classic abdominal exercise that primarily targets your rectus abdominis - the front muscles of your core that create that coveted six-pack appearance. Adding a twist to the traditional crunch, the "Crunch (arms straight)" variation increases the difficulty and engages additional muscles in the process. To perform this exercise, start by lying flat on your back with your knees bent and feet flat on the floor. Extend your arms straight up toward the ceiling, keeping them parallel to each other. As you exhale, engage your core and lift your shoulder blades off the ground, aiming to bring your chest towards your knees. Maintain a controlled, slow movement, and avoid using your neck or momentum to lift your upper body. The key to the "Crunch (arms straight)" is the added resistance on your core, arms, and shoulders. By keeping your arms straight and parallel to each other throughout the movement, you'll not only challenge your abdominal muscles but also engage the muscles in your arms, upper back, and shoulders. This variation can also help improve your posture and upper body strength. Remember to focus on quality over quantity and avoid swinging or using momentum to complete the exercise. Take it slow and steady, really contracting your abdominal muscles with each repetition. If you experience any discomfort or strain, modify the exercise by bending your elbows or reducing the range of motion. To maximize the benefits of this exercise, incorporate it into a well-rounded workout routine that includes exercises targeting all major muscle groups. Combine it with other core exercises, such as planks or bicycle crunches, for a challenging and effective ab workout. Remember, consistency and proper form are key to seeing results, so aim to gradually increase the number of repetitions or level of difficulty as your strength and endurance improve.


  • Lie flat on your back with your knees bent and feet flat on the ground.
  • Extend your arms straight up towards the ceiling.
  • Engage your core by drawing your belly button towards your spine.
  • Exhale as you lift your head, neck, and shoulder blades off the ground.
  • Keep your arms straight and reach towards your toes.
  • Pause momentarily at the top of the movement.
  • Inhale as you slowly lower your upper body back down to the starting position.
  • Repeat for the desired number of repetitions.

Tips & Tricks

  • Engage your core muscles throughout the entire exercise to maximize effectiveness.
  • Maintain a neutral spine alignment to prevent strain on your neck and lower back.
  • Exhale as you lift your upper body off the ground and inhale as you lower back down.
  • Focus on using your abdominal muscles to initiate the movement, rather than relying on momentum.
  • Avoid pulling on your neck or using your arms to lift your upper body; the movement should come from the abs.
  • Increase the challenge by adding resistance, such as holding a weight plate or using a resistance band.
  • Perform the exercise on a stable surface, such as a mat, to ensure proper form and prevent discomfort.
  • Vary the tempo of the exercise by slowing down the upward phase and squeezing the abs at the top for a few seconds.
  • Incorporate this exercise into a well-rounded core workout routine, including exercises that target different muscle groups.
  • Consult with a fitness professional to ensure proper form and to determine the appropriate number of repetitions and sets based on your fitness level.


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