Systems and methods are presented for performing exercises to strengthen, e.g., the transversus abdominis and related muscles. The systems and methods may involve one or more independent belts, allowing a full range of continuous motion. The systems and methods may further use a resistance-control mechanism that allows a user to adjust the force required to move the one or more belts, thereby controlling the rate of motion in the forward and/or backward directions. The systems and methods may further use a unidirectional resistance mechanism that allows the user to increase the resistance of the one or more belts in one direction, while allowing the one or more belts to move freely in the other direction.

A resistance adjustable exercise device, including a resistance assembly to provide resistance to movement, a handle assembly connected to at least a portion of the resistance assembly to move the resistance assembly in at least one of a first rotational direction and a second rotational direction, and a control unit disposed on at least a portion of the handle assembly to adjust at least one of a first resistance level and a second resistance level of the resistance assembly.

A resistance adjustable exercise device, including a resistance assembly to provide resistance to movement, a handle assembly connected to at least a portion of the resistance assembly to move the resistance assembly in at least one of a first rotational direction and a second rotational direction, and a control unit disposed on at least a portion of the handle assembly to adjust at least one of a first resistance level and a second resistance level of the resistance assembly.

An exercise bike operable while remaining stationary on a support surface. The exercise bike includes a bicycle frame with a pedal assembly coupled to a clutch mechanism that is movable between an unlocked state in which the pedal assembly drives a wheel in a first rotational direction and rotates relative to the wheel in a second rotational direction, and a locked state in which the pedal assembly is rotationally fixed to the wheel to drive the wheel in the first rotational direction and the second rotational direction, and a handlebar assembly. The handlebar assembly is coupled to the bicycle frame and includes a handlebar and a locking mechanism. The locking mechanism is moveable between an unlocked position in which the handlebar is allowed to rotate about an axis, and a locked position in which the handlebar is restricted from rotating about the axis. A control module may move the locking mechanism and the clutch mechanism between their respective locked and unlocked states.

An exercise bike operable while remaining stationary on a support surface. The exercise bike includes a bicycle frame with a pedal assembly coupled to a clutch mechanism that is movable between an unlocked state in which the pedal assembly drives a wheel in a first rotational direction and rotates relative to the wheel in a second rotational direction, and a locked state in which the pedal assembly is rotationally fixed to the wheel to drive the wheel in the first rotational direction and the second rotational direction, and a handlebar assembly. The handlebar assembly is coupled to the bicycle frame and includes a handlebar and a locking mechanism. The locking mechanism is moveable between an unlocked position in which the handlebar is allowed to rotate about an axis, and a locked position in which the handlebar is restricted from rotating about the axis. A control module may move the locking mechanism and the clutch mechanism between their respective locked and unlocked states.

A leg exercise assembly includes a housing that is positionable near a user's feet. A pair of foot pads is each disposed on the housing for having a respective one of the user's feet positioned upon the foot pads. A pair of roller units is each rollably integrated into the housing and each of the foot pads is coupled to a respective one of the pair of roller units for sliding the foot pads back and forth on the housing. A resistance unit is movably integrated into the housing for either increasing or decreasing the force required to move the footpads to accommodate the physical strength of the user. A calorie counter is integrated into the housing and the calorie counter counts each time the pair of roller units is moved back and forth to calculate the calories being burnt by the user.

An exercise device of the type including a frame with a first crank assembly rotatably coupled to the frame about a first axis and a second crank assembly rotatably coupled to the frame about a second axis. A control system may be used in communication with the first crank assembly and the second crank assembly, which may provide a synchronous movement of the first crank assembly relative to the second crank assembly. A pedal arm may be provided with a first end pivotally coupled to the first crank assembly and a pedal positioned on a second end. A crank link may be used with one end coupled to the second crank assembly and a second end coupled to the pedal arm. The crank link may be movable on the pedal arm which may provide varying paths of motion of the pedals.

An exercise device of the type including a frame with a first crank assembly rotatably coupled to the frame about a first axis and a second crank assembly rotatably coupled to the frame about a second axis. A control system may be used in communication with the first crank assembly and the second crank assembly, which may provide a synchronous movement of the first crank assembly relative to the second crank assembly. A pedal arm may be provided with a first end pivotally coupled to the first crank assembly and a pedal positioned on a second end. A crank link may be used with one end coupled to the second crank assembly and a second end coupled to the pedal arm. The crank link may be movable on the pedal arm which may provide varying paths of motion of the pedals.

An exercise or fitness device designed to strengthen the entire body, with particular focus on the upper body. The device facilitates the strengthening of the core, chest, back, shoulder, and arm muscles, and in particular those muscles that move the core in the transverse plane. The device consists of two hemispherical shells, both of which have handles attached via risers. This arrangement allows the device to be gripped either by the spherical surfaces, by the handles, or a combination thereof. The two hemispheres are attached to each other by means of a shaft with a variable braking mechanism. The braking mechanism can provide levels of rotational resistance from almost zero to virtually impossible to rotate, with the resistance level being visibly indicated on the exterior of the device. The resistance level is changed by repeatedly rotating the two halves against each other in one direction or another. Key areas of the exterior of the device are treated with non-slip areas to facilitate the user gripping the device during exercise.

An exercise machine comprises an arm support, including: a carriage configured to slide within a track attached to the exercise machine; and a support assembly that floats the carriage relative to the track, wherein the support assembly is disengaged by the application of force via the arm. An exercise machine comprises a rotatable column, wherein the column supports an arm, and a gear detent mechanism to support a discrete number of positions for the rotatable column. An exercise machine comprises a tiltable arm, and a mechanism to support a discrete number of positions for the tiltable arm.