31Oct, 2016 0 Ball Wall for shoulder problems – New ! By: OCFH | Tags: Ball Exercise, Ball Wall, Frozen Shoulder, Impingement injuries, Natural Help, Rotator Cuff, self help, Shoulder Impingement, Shoulder Problems, Tendonitis Using a lacrosse ball for shoulder issues such as rotator cuff tendonitis, bicep tendonitis, frozen shoulder and impingement injuries.