Exos | Formerly Core Performance

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Core Knowledge


Y's - Stability Ball

Starting Position

  • Lie face-down on a stability ball with your arms straight down in front of you, legs straight, and back flat.


  • Glide your shoulder blades toward your spine and lift your arms up and slightly out to the sides.
  • Return to the starting position and repeat for the prescribed number of repetitions

Coaching Keys

  • Initiate the movement with your shoulder blades, not your arms.

You Should Feel It

  • Working your shoulders and upper back.

Tags: Shoulder, Dumbbells, Upper Back, Physioball, Strength