Instructions:
- 1Get down on all your four while keeping your arms, back, and thighs straight.
- 2Raise one of your knees to the hip level by opening your thighs while keeping your leg bent.
- 3Hold for a while then return to the initial position, and repeat.
Tips:
- Keep your back straight and avoid hunching.
- Keep your neck in a neutral position.
- Keep your knees bent, making a 90-degree angle with your thighs.