The present disclosure relates to an elastic unit with adjustable elasticity and elastic modulus and to an operation method thereof. In particular, the present disclosure relates to an elastic unit with adjustable elasticity and elastic modulus, which comprises: an elastic element having a plurality of division areas longitudinally; and elasticity adjustment modules that are laid out in each of the division areas of the elastic element and activate or inactivate the elastic element partially depending on the division areas to adjust an elasticity and an elastic modulus of the elastic element.

Disclosed is an elastic exercise strap with a gripping portion that merges into a loop or aperture. The strap can be connected to a sports helmet by threading the extended gripping portion around a part the helmet and then inserted through the loop or aperture. By pulling on the attached strap the neck muscles can be exercised.

A spring exercise system and method of exercising that allows a user to perform a full body, low-impact style of exercise. The system utilizes a non-fixed extension spring that stretches and generates resistance when pulling and pressing forces are applied. The extension spring or springs are stretchable between multiple types of interchangeable grasp handles which may include any combination of a resilient loop handle with or without double “D” rings, a single rigid handle, and/or a resilient double loop handle. The spring may have a swiveling link or other mechanism/structure that joins the free ends of the spring to the grasp handles allowing a 360° rotation. The grasp handles are used with combinations of hands and feet, arms and legs to generate an extension of resistance that stretches, strengthens and tones muscles, enhances flexibility, core strength, joint stability, and muscle balance.

A portable, wearable resistance band training apparatus having at least one resistance device secured in a channel of a strap portion forming shoulder straps, and a plurality of access openings in the shoulder strap portion for grasping and extending the resistance device from the sleeve for performing one or more resistance training exercises.

Provided herein in some embodiments is a resistance-training system including an upper-body garment having a first section of a single-layered construction and a second section of a multi-layered construction. The single-layered construction can include a first fabric layer. The multi-layered construction can include the first fabric layer, a second fabric layer, and a resistance-providing layer in-between the first fabric layer and the second fabric layer. The resistance-training system also includes a lower-body garment having the multi-layered construction, optionally with a different resistance-providing layer than the upper-body garment. The resistance-providing layer of the upper-body garment and the lower-body garment can be configured to provide resistance to one or more user movements for a user donning the resistance-training system.

A leg muscle, abdominal muscle, and spinal exercise device adapted for imparting curvature to a lumbar or sacral spine of a user and for manipulating the spine and intervertebral discs with decompression force includes a frame for placement on a floor. The frame has a top surface and a bottom surface, wherein the top surface and bottom surface are in a spaced apart relationship forming a hollow portion there between. At least one inflatable bladder is carried by the top surface of the frame. A body strap attachment passes through the frame in non-fixed relationship and is partially disposed within the hollow portion for encompassing the user's thoracic-sacral spinal region and securing said frame. An elongate stirrup strap member is attachable to the body strap attachment thereby connecting to the user's spinal region. A stirrup is attachable to the stirrup strap member distal end.

An orthotic support comprises a shoulder section for encapsulating a first shoulder of a wearer, a glove section for conforming to at least a portion of the wearer's hand, and a sleeve section for conforming to the wearer's arm, the sleeve section connecting the shoulder section to the glove section. A resilient reinforcement extends from the glove section to the shoulder section, and at least a portion of the reinforcement extends in a spiral around the sleeve section, so that the reinforcement is configured to apply a rotational force to the wearer's arm, when worn, to urge a portion of the wearer's arm to rotate in a predetermined direction. The orthotic support may be usable to treat or prevent shoulder dislocation or subluxation, arm over-pronation or over-supination, wrist flexion or elbow flexion. An orthotic support may comprise a reinforcement with a first branch extending over an anterior portion of the sleeve section, and a second branch extending over a posterior portion of the sleeve section, so that the reinforcement is configured to urge the wearer's upper arm towards a rest position.

An abdominal exercise device includes a frame comprising top, middle, and bottom frame sections. The middle frame section has a curved shape for creating a teeter-totter movement during exercise. The device includes a headrest connected to the bottom frame section, a plurality of connectors for connecting elastic bands to the frame, and an elastic band connected to at least two connectors. The two ends of the elastic band are connected to two straps. The device creates the teeter-totter movement to exercise the abdominal muscles in response to a person lying down in supine position with the back of the head on the headrest and the feet in the two straps, the person applying a downward pressure with the feet to the straps to move the headrest from a resting position, and the person removing the downward pressure to allow the headrest to go back to the resting position.

An elastic exercise band, including a main body, including a first section to receive a first portion of a body of a user thereon and resist at least partially deforming in response to an application of force thereto, and a second section disposed on at least a portion of the first section to receive a second portion of the body of the user thereon and resist at least partially deforming in response to the application of force thereto, and a plurality of surface linings disposed on at least a portion of the first section and the second section to prevent the first section and the second section from sliding away from the body of the user during exercise.

Embodiments of the present invention provide an adjustable strap apparatus and methods of instructing a patient to perform an exercise using the adjustable strap apparatus. An apparatus according to embodiments of the present invention includes a strap, a plurality of hook patches and a plurality of loop patches joined thereto. A hook patch and a loop patch of the present invention are removably engageable to form pull loops from ends of the apparatus and to form a pull belt between the pull loops. A therapist may instruct a patient to perform a mobilization exercise or a stretching exercise by forming pull loops about extremities of the patient and pulling on the apparatus without grasping to exert a stabilization force or resistance force upon a part of the body of the patient.