Abstract: A handheld device of a uniquely adjustable nature for the purpose of exercise of the human body. The handheld device can be moved freely in any direction or pattern at any speed or pace generated and desired by the user creating a wide variety of resistance, leverage, torque and/or momentum. The device will comprise an elongated hollow body of two ends, one end being open and of a length and circumference to provide a secure gripping surface, the other end being closed and of a larger size and bulbous shape to contain a quantity of any suitable material in order to adjust the weight. A given material will be contained within the device with a cap or lid. The device will also have an optional extension handle, which will provide an even greater variety of exercise using resistance, leverage, torque and/or momentum.

Abstract: A handheld device for the purpose of exercise of the human body via added resistance, leverage, torque and/or momentum. The handheld device can be moved freely in any direction or pattern at any speed or pace generated and desired by the user creating a wide variety of resistance, torque and or momentum. The device will comprise an elongated body of two ends, one end being of a length and circumference to provide a secure gripping surface, the other end of a suitable size and shape to contain a quantity of material in order to adjust the weight. A given material will be contained within the device with a cap or lid. The device will also have an optional extension handle, which when attached to the device, filled with a given material secured by the cap or lid, will provide an even greater variety of exercise using resistance, leverage, torque and/or momentum. The device may be easily loaded or unloaded with various materials to easily adjust weight for a wide variety of resistance, torque and/or momentum.

Abstract: A device for resistance exercise of muscle groups that cross two or more joints such as biceps group, triceps group, quadriceps group, and hamstring group. The device comprises a primary cam or gear fixed non-rotatably to the frame of an appropriate exercise machine for working the desired body part, and a secondary cam or gear connected only to the primary cam in such a way which, when rotated, tracks around the primary cam or gear. Resistance is provided with a cable, belt, chain, or other means to the axis of the secondary cam only. When properly positioned user applies force to the contact point connected to the secondary cam and secondary axis, the device moves both desired joints simultaneously through a range of motion while under a predictable resistance. The device provides an improved range of movement while under resistance, thereby supplying a greater extension and contraction of the desired muscle or muscle group than prior art devices.

Abstract: A device for resistance exercise of muscle groups that cross two or more joints such as bicep group, tricep group, quadriceps group, and hamstring group. The device comprises a primary cam or gear fixed to the frame of an appropriate exercise machine for working the desired body part, and a secondary cam or gear which, when rotated, tracks around the primary cam or gear. Resistance is provided with a cable, belt, chain, or other means. When properly positioned user applies force to the contact point, the device moves both desired joints simultaneously through a range of motion while under a predictable resistance. The device provides an improved range of movement while under resistance, thereby supplying a greater extension and contraction of the desired muscle or muscle group than prior art devices.