Loading...
Uploaded by MichaelBoyle on Aug 17, 2008
Michael Boyle introduces the features of Strengthcoach.com - The World's Best Source of Performance Enhancement Information
Education
Standard YouTube License
i watched another one of your videos involving the vertical jump, and elasticity, do you have any suggestions on how to be a more efficient jumper?
duncan6666667 1 year ago
Load more suggestions
i watched another one of your videos involving the vertical jump, and elasticity, do you have any suggestions on how to be a more efficient jumper?
duncan6666667 1 year ago