| 摘要 |
<p>An exercise tool 100 for use with a user's body part includes a strip of elastomeric material 102 with an engagement area 106 spaced from and proximate one end. The engagement area defines an opening 108 with a rest perimeter, and the engagement area has an elasticity sufficient to stretch the opening from the rest perimeter to a larger perimeter sufficient to receive the body part P when it is inserted with a minimum predetermined force. When the opening is stretched above the rest perimeter, the engagement area exerts a tightening force into the opening to tighten against the body part. A method includes inserting the body part into the opening, fixing the other end of the strip to an anchor, and stretching the strip with the body part away from the anchor while the user is at least partially submerged in water.</p> |
