How to select an exercise ball
Sitting on the ball, your hips and knees should form a 900 angle with each other.
Use theĀ information below as an indicator as to the correct size needed:
Ball DiameterĀ Ā Ā Ā Ā Ā User Height
55cm Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā 1.50m (4ft 11in) to 1.60m (5ft 3in)
65cmĀ Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā 1.70m (5ft 6in)Ā Ā to 1.86m (6ft 1in)
75cmĀ Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā 1.88m (6ft 2in)Ā Ā to 2.07m (6ft 8in)
85cmĀ Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā Ā 2.10m (6ft 9in)Ā Ā and taller.
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