Lying Side to Side Knee
- Synergistenmuskeln
- Rectus Abdominis, Sartorius, Tensor Fasciae Latae
- Equipment
- Body weight
- Körperregion
- Hips
- Typ
- Strength
The Lying Side to Side Knee is a supine mobility and strength exercise that drives the bent knees from side to side, engaging the adductor brevis, adductor longus, adductor magnus, gluteus medius, obliques, and pectineus with each repetition. The rectus abdominis, sartorius, and tensor fasciae latae work synergistically to stabilize the core and control the movement. This bodyweight exercise is ideal for improving hip mobility, inner-thigh strength, and rotational core stability.
Lying Side to Side Knee: So führst du sie aus
- 1Lie flat on your back on a comfortable surface with your arms extended out to the sides at shoulder height, palms facing down.
- 2Bend both knees and plant your feet flat on the floor, hip-width apart, close to your glutes.
- 3Engage your core gently by drawing your navel toward your spine.
- 4Exhale and slowly lower both knees together to the right side, aiming to bring them as close to the floor as comfortable without lifting your shoulders.
- 5Pause briefly at the bottom of the range, feeling a stretch through the adductors and obliques on the left side.
- 6Inhale and use your obliques and adductors to draw both knees back to the center starting position.
- 7Exhale and lower both knees to the left side in the same controlled manner.
- 8Return to center to complete one full repetition.
- 9Continue alternating sides for the desired number of repetitions, maintaining a slow, controlled tempo throughout.
Technik-Tipps
- Keep your shoulders pressed firmly into the floor throughout the movement to isolate the hips and obliques rather than rotating through the upper back.
- Move only as far to each side as you can without your lower back arching off the floor — quality of range matters more than depth.
- Focus on using the adductors and obliques to actively pull the knees back to center rather than just letting gravity do the work.
- Breathe out as the knees lower and breathe in as they return to center to coordinate the breath with the core engagement.
- Keep both feet together or hip-width apart consistently throughout the set to maintain symmetrical loading on the adductors.
Häufige Fehler
- Letting the shoulders lift off the floor: Allowing the upper body to rotate reduces oblique engagement and shifts stress away from the target muscles, diminishing the exercise's effectiveness.
- Dropping the knees too quickly: Using momentum instead of muscle control removes tension from the adductors and gluteus medius and increases the risk of straining the hip or lower back.
- Lowering past a comfortable range: Forcing the knees all the way to the floor when flexibility does not allow it causes the lower back to arch and torques the lumbar spine unnecessarily.
- Holding the breath: Breath-holding raises intra-abdominal pressure and limits core stability; breathing rhythmically keeps the obliques and rectus abdominis working effectively.
- Placing feet too far from the glutes: A longer shin-to-thigh angle increases lever length and makes it harder for the adductors and pectineus to control the descent, risking loss of form.
Häufig gestellte Fragen
What muscles does the Lying Side to Side Knee work?
The primary muscles are the adductor brevis, adductor longus, adductor magnus, gluteus medius, obliques, and pectineus. The rectus abdominis, sartorius, and tensor fasciae latae assist as synergists to stabilize the core and control leg movement.
How many reps and sets should I do for the Lying Side to Side Knee?
For mobility and stability work, 2–3 sets of 10–15 reps per side is a practical starting point. Move slowly and focus on control rather than volume, especially when first learning the movement.
Is the Lying Side to Side Knee good for lower back pain?
When performed with proper form — shoulders flat, controlled range of motion, and no lumbar arching — this exercise can gently mobilize the hips and strengthen the obliques and adductors, which may support lower back health. If you have existing lower back issues, consult a healthcare professional before adding this exercise.
Can I do the Lying Side to Side Knee as a warm-up?
Yes. The exercise is an excellent warm-up movement to activate the hip adductors, gluteus medius, and obliques before lower-body or core-focused training sessions. Perform 1–2 sets of 10 slow, controlled repetitions per side to prime the muscles and improve hip mobility.
How do I make the Lying Side to Side Knee harder?
You can increase difficulty by slowing the tempo further, adding a longer pause at the bottom of each side, or straightening the legs slightly to increase the lever arm. Since this is a bodyweight exercise, these technique adjustments are more effective than adding external load.
