Bent-knee Lying Twist (On Stability Ball)

Bent-knee Lying Twist (On Stability Ball)

The Bent-knee Lying Twist is a fantastic exercise that targets your core muscles, including your obliques and lower back, while also activating your hip muscles. This exercise can be performed on a stability ball, adding an element of balance and stability to intensify the workout. It's a great choice for those looking to strengthen their core and improve overall stability. The primary focus of the Bent-knee Lying Twist is rotational movement, which helps to improve your spinal mobility and flexibility. The exercise involves lying on your back on a stability ball with your knees bent at a 90-degree angle and your feet flat on the ground. Keeping your upper body relaxed, engage your core muscles as you slowly rotate your knees to one side, aiming to touch the ground with your knees without lifting your shoulder blades off the ball. Exhale as you twist and inhale as you return to the starting position, focusing on controlled movements throughout the exercise. Adding the Bent-knee Lying Twist to your workout routine can have several benefits. It can enhance your overall functional fitness by improving stability, flexibility, and coordination. Additionally, a strong core can help improve posture, reduce the risk of lower back pain, and enhance athletic performance in various sports or physical activities. Remember to start with a comfortable range of motion and gradually increase the intensity as you become more proficient with the exercise. As with any exercise, it's important to maintain proper form and listen to your body. If you experience any pain or discomfort, consult with a fitness professional or modify the exercise to ensure it suits your individual needs. Include the Bent-knee Lying Twist to your core workout routine and enjoy the benefits of a strong and stable midsection.


  • Start by lying flat on your back on a stability ball, with your knees bent and your feet flat on the ground. Make sure your body is centered on the ball and your lower back is supported.
  • Place your hands on the sides of your head with your elbows bent, ensuring that your elbows are pointing outward.
  • Engage your core muscles and slowly twist your upper body to one side, aiming to bring your elbow towards the opposite knee. Exhale as you twist.
  • Pause for a moment at the end of the movement and feel the stretch in your oblique muscles.
  • Return to the starting position and repeat the twist on the other side. Inhale as you return to the starting position.
  • Continue alternating sides for the desired number of repetitions or as recommended by your fitness trainer.
  • Remember to maintain control throughout the movement and avoid using momentum to twist excessively.

Tips & Tricks

  • Engage your core muscles throughout the exercise for added stability and to protect your lower back.
  • Use a stability ball that is the appropriate size for your height to ensure proper form and balance.
  • Start with a light weight or no weight at all, gradually increase the resistance as you get more comfortable with the exercise.
  • Focus on twisting from your waist, keeping your upper body still and stable.
  • Maintain a slow and controlled movement throughout the exercise, avoiding any jerking or sudden movements.
  • Breathe steadily and exhale as you twist to fully engage your core muscles.
  • Keep your neck relaxed and aligned with your spine, avoiding any excessive strain or tension.
  • If you experience any discomfort or pain in your lower back, adjust the range of motion or consult with a fitness professional for modifications.
  • Incorporate this exercise into a well-rounded workout routine that includes a variety of strength training, cardiovascular exercises, and flexibility training.
  • Fuel your body with proper nutrition, focusing on a well-balanced diet that includes lean protein, whole grains, fruits, and vegetables.


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