| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a dumbbell suitable for strengthening the wrist, i.e., the forearm, with which the forearm can be strengthened by only holding the dumbbell, with which other muscle parts can also be strengthened while holding the dumbbell, and to thereby provide a dumbbell with which the muscular power can be strengthened with such a balance that is called for in actual match play of a sport. Ž<P>SOLUTION: The dumbbell 1 includes: a handle portion 2 having a flattened cross section; and at least two weight portions 3 provided at opposite ends of the handle portion 2. The handle portion 2 is connected to an off-center position 5 deviating from a center-of-gravity portion 4 of each of the weight portions 3. A crossing angle between a direction 9 from the off-center position 5 toward the center-of-gravity portion 4 and a longitudinal direction 6 of the handle portion 2 is larger than 0 degrees and smaller than 90 degrees. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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