Lesson instructions:
Read the exercise instructions
Watch the video
Read key teaching phrases and contraindications

Key teaching phrases
- “Keep your head in line with your body”
- “Maintain a natural curve in your lower back”
- “Avoid slouching”
- “Keep your feet flat on the floor”
- “Keep your knees in line with your toes”
- “Don’t let your knees move inwards or outwards”
Contraindications
- Knee pain during or after this exercise
- Recent knee surgery