Sore shoulders from kicking with a kick board

Other than stop using a kick board does anyone have any ideas on how to reduce shoulder soreness associated with using a kick board. We have been really working on kick as part of our LCM training this season and my quads are sore but by far and a way my shoulders hurt the most. During the kick set I am fine but a few hours later my shoulders are stiff and sore.
Parents
  • dear Mr. McRib(let) take up full contact checkers or chess or with you being a national champion backstroker, i thought maybe you would already know to simply kick on your back! jeez gotta tell you youngsters everything! sincerely, gasping from a lake at 6300 feet
Reply
  • dear Mr. McRib(let) take up full contact checkers or chess or with you being a national champion backstroker, i thought maybe you would already know to simply kick on your back! jeez gotta tell you youngsters everything! sincerely, gasping from a lake at 6300 feet
Children
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