Stand and place a strap around your arm, just above your wrist.
Lift your arm forwards at a comfortable height but no higher than shoulder height.
Your elbow should be slightly bent and your thumb pointing upwards.
Secure the ends of the strap under your same side foot.
Attempt to lift your arm upwards against the resistance of the strap.
The strap should be firm enough not to allow any movement as you contract your muscles.
Hold the contraction with as much effort and for as long as advised.
