Strength, Level 2

1. Sit upright keeping your back off the back rest throughout
2. Reach your arms up overhead, slightly wider than shoulder width apart
3. Imagine grabbing a bar and pulling it down whilst squeezing your arm and shoulder muscles
4. When you have pulled down, hold here and squeeze your back muscles for 3 seconds
5. Repeat 10-15 times

* To make this exercise more challenging, apply some resistance