Abstract: A modular resistance force system includes an axle configured to be rotatable around a rotational axis and one or more resistance mechanisms. Each of the one or more resistance mechanisms includes a resistance element disposed about a portion of the axle, a resistance element housing configured to house the resistance element and a resistance substance disposed between the resistance element and the resistance element housing. Either the resistance element or the resistance element housing is selectively engaged to rotate with the axle. A resistance between the resistance element and the resistance substance causes a force to be applied to the axle when the resistance element and the resistance element housing move relative to each other.

Abstract: A weighted wrist band or wrist cuff utilized during sport training or exercise. The weighted wrist band includes a gel mold provided with a plurality of metallic chips therein to be inserted into a pouch within the weighted wrist band. The weighted wrist band includes a first section, a second section and an offset cuff section provided between the first section and the second section. The upper edge of the offset cuff section is spaced below the upper edge of the first section and the second section, thereby resulting in the offset cuff section being offset from the first and second sections. This configuration would prevent any contact of the weighted wrist band with any sports implement during training or exercise.