The shoulder bridge on the Swiss Ball with circle is a beneficial exercise for the stability of the shoulder girdle and particularly beneficial for people with a weak back or back injury.
Targeted muscles: gluteus maximus - biceps and rectus femoris - abdominals (rectus abdominis - transverse abdominis - lesser oblique) - tensor fascia lata.
Strengthening of the glutes, hamstrings and balance (arms are not on the ground so there is instability - abdominal strength and gluteal contraction stabilise the body)
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