The 1-Minute Full Body Workout for a Stronger Back and Trimmer Waist

Editor's Note: An isometric exercise is a form of exercise that strengthens a muscle without changing its length. ...

Related Keywords

Germany ,Japan ,Switzerland ,Niigata ,Georgia ,Republic Of Georgia ,German ,Yumi Ishihara ,Minoru Fukuda ,School Of Medicine ,University Of Alabama ,Niigata University ,Autonomic Nervous Immunotherapy Research Association ,Lower Body ,Medical Book ,Human Immunity ,Medical Zoology ,Dental Sciences ,Toru Abo ,Stretch ,The Epoch Times ,