A blade resistance adjustment structure and an exercise machine having the same are disclosed. The blade resistance adjustment structure includes a rotating shaft, a blade seat, a plurality of blades, a sliding seat, and a plurality of connecting members. Through an adjustment force, the radius of rotation changes along with an opening and closing angle, thereby changing the magnitude of rotational resistance.

A device for performing blood flow restriction training during the day, integrated with a garment, and controllable to apply a desired compression level to a range of muscles with the intent on improving the health and fitness of a user doing normal daily activities.

A training equipment for resistance training of the upper body, wherein the training equipment comprises: an attachment portion adapted to be attached to the body of an exercising person, a handle portion adapted to be gripped by the exercising person, a first distance device flexibly attached in the attachment portion by a first joint, a second distance device flexibly attached in the first distance device by a second joint. At least one of: the first joint, the second joint, the first distance device, and the second distance device comprises an adjustable movement resistance device adapted to create an adjustable resistance between the attachment portion and the handle portion, so that training of the upper body is obtained upon movement of the handle portion.

A collapsible exercise machine for strengthening the core muscles (transverse abdominal, internal obliques, external obliques, rectus abdominis, and erector spinae) includes a frame mounted on a base on which a user sits and manipulates an upstanding lever arm. A seat is convertible between two differently-angled positions for back extension or abdominal exercises. The lever arm rotates a curved tube having a plurality of force adjustment holes. The tube passes through a frame at the upper end of a gas spring, and engaging an adjustment pin on the frame with different adjustment holes changes the amount of resistance. The entire frame above the base can be vertically adjusted to accommodate different sizes of user without altering the relative position between the seat (and user's hips) and the axis of rotation of the lever arm thus not affecting/changing the designated resistance between users of different heights (resistance is affected when the lever arm is lengthened). The connection between the frame and the base enables the unit to be collapsed to a profile small enough to fit under a bed.

The Unibody Fitness System allows an individual to receive the highly desirable low impact resistance of working out in a pool without actually being in water. With the Unibody Fitness System, the user can perform a complete workout regiment to build muscles without the use of weights or water as the system uses fluid to create resistance during cardiovascular workout, aerobics, walking, jogging or doing menial tasks. By attaching the Unibody Fitness System device to the body's joints and flex points, such as the elbow and knee, resistance is produce for the muscles in that region of the body every time the user bends or extends the arm or leg which the device is worn.

The Unibody Fitness System allows an individual to receive the highly desirable low impact resistance of working out in a pool without actually being in water. With the Unibody Fitness System, the user can perform a complete workout regiment to build muscles without the use of weights or water as the system uses fluid to create resistance during cardiovascular workout, aerobics, walking, jogging or doing menial tasks. By attaching the Unibody Fitness System device to the body's joints and flex points, such as the elbow and knee, resistance is produce for the muscles in that region of the body every time the user bends or extends the arm or leg which the device is worn.

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 movement assistance device comprising a first element for rigidly connecting the device to one foot of a user and transmitting a thrust force to said foot; and a second element linked to the first element by link means and intended to be in contact with the ground; the device further comprises means for transmitting a force from an exogenous energy source, to the first element and/or to the second element, in order to separate them from each other.

A stowable rowing machine is provided. The rowing machine may include a frame, a seat rail selectively movable relative the frame between storage and use configurations, and an adjustment assembly movably coupling the seat rail to the frame and operable to releasably secure the seat rail to the frame. The adjustment assembly may include a plurality of securing elements configured to selectively engage the seat rail to secure the seat rail in position. The adjustment assembly may include a plurality of guide elements configured to selectively engage the seat rail, the plurality of guide elements including at least one disengagement guide element. When the seat rail is engaged with the disengagement guide element(s), the seat rail may be disengaged from the securing elements.

Described herein are embodiments of stationary exercise machines having reciprocating foot and/or hand members, such as foot pedals that move in a closed loop path. Some embodiments can include reciprocating foot pedals that cause a user's feet to move along a closed loop path that is substantially inclined, such that the foot motion simulates a climbing motion more than a flat walking or running motion. Some embodiments can further include reciprocating handles that are configured to move in coordination with the foot via a linkage to a crank wheel also coupled to the foot pedals. Variable resistance can be provided via a rotating air-resistance based mechanism, via a magnetism based mechanism, and/or via other mechanisms, one or more of which can be rapidly adjustable while the user is using the machine.