A treadmill includes a frame; a front running belt pulley; a rear running belt pulley; a plurality of bearings coupled to the frame; a running belt at least partially supported by at least one of the front running belt pulley and the rear running belt pulley, the running belt including a running surface, at least a portion of which is curved; a support element coupled to the frame; and a safety device coupled to the running belt. The safety device is at least partly supported by the support element. The running belt freely rotates in a first direction of rotation relative to the frame, however, in a second direction of rotation, opposite the first direction of rotation, engagement between the support element and at least a portion of the safety device substantially prevents rotation the running belt relative to the frame.

A treadmill is provided. A rotation device rotatably supporting a track unit of the treadmill includes a pair of bearing trains rotatably installed at a frame structure and including a plurality of first bearings arranged along a movement direction of a belt to guide a movement of an upper region of a pair of belts and a front rotation module and a rear rotation module rotatably installed at the frame structure and respectively arranged at a front side and a rear side of the pair of bearing trains. At least one of the front rotation module and the rear rotation module includes a pair of rotation members arranged spaced apart from each other in a direction perpendicular to a rotation direction thereof and a pair of rotation support units supporting the pair of rotation members such that the pair of rotation members rotate individually.

A treadmill may include a platform, at least one pulley attached to the platform, a sliding surface of the platform, a tread belt riding portion of the sliding surface, a tread belt surrounding the pulley and the sliding surface, the tread belt having at least one side edge, and a belt guide incorporated into the platform. The belt guide includes a textured portion of the sliding surface aligned with the side edge of the tread belt and spaced apart therefrom when the tread belt is positioned entirely within the tread belt riding portion. When the textured portion comes into contact the tread belt from the tread belt being misaligned out of the tread belt riding portion, the tread belt and the textured portion collectively produce a misalignment sound audible to a user when the tread belt moves against the sliding surface.

A golf club length adjustment device, comprising a first member affixed to a main shaft, the main shaft configured to couple to a golf club head, a second member slideably coupled to the first member, the second member adapted to couple to a golf club grip, wherein the first member is configured to slide along a club axis relative to the second member to change the length of the golf club.

A system and method for predictive health monitoring using neural networks, comprising a wearable device with biometric sensors, a database containing data from multiple users across many categories of health-related factors, a first set of neural networks trained on the database that makes health predictions based on a single health factor, and a second neural network that makes health predictions based on a combination of the predictions made by the first set of neural networks.

A gait training device includes a treadmill including a belt and rolling parts, and a frame on which the treadmill is mounted, the rolling parts including: a plurality of balls distributed around a central core, and a cage enclosing the plurality of balls in order to keep the balls on the central core while allowing them to be movable relative to the central core, the belt being able to slide over the balls and rotate the balls on the central core.

A treadmill includes a platform where the platform includes a first side panel and a second side panel spaced apart at a distance from the first side panel, and a gap defined between the first side panel and the second side panel. The treadmill also includes a running deck contained within the platform and exposed within the gap, a first pulley connected to the running deck, a second pulley connected to the running deck opposite the first pulley, a tread belt surrounding the first pulley and the second pulley, a first post removably connected to the platform, a second post removably connected to the platform, and a first rail transversely connected to the first post and the second post.

A manual powered treadmill includes a frame; a front shaft assembly coupled to the frame; a rear shaft assembly coupled to the frame; an intermediate shaft coupled to the frame, the intermediate shaft is disposed intermediate the front shaft assembly and the rear shaft assembly; a running belt disposed about the front and rear shaft assemblies, the running belt defining at least a portion of a non-planar running surface; and a safety device coupled to the intermediate shaft. The safety device is operable to substantially prevent movement of the running belt in a first direction and to permit movement of the running belt in a second direction opposite the first direction.

A multi-dimensional body positioning apparatus that can be used in the practice of pilates, yoga, tai chi, and other intelligent movement disciplines, including exercise, rehabilitation, training, physical and mental conditioning, habituation, injury prevention and recovery; in medical protocols for minimizing cascade of disabilities and maximizing muscular and neurological recovery from paralysis, congenital disorders, and auto immune illnesses; and overall healing. The body positioning apparatus includes raised portions that are plateaus that relate to the topology of the human body, which provide visual and tactile references, so the user can properly align the body during exercise or use of the apparatus. By providing these plateaus, the exercise routine can be optimized. For instance, a user can us the apparatus supervised while monitoring proper technique.

A non-mechanical manual combination treadmill/step deck exercise device comprises a treadmill having a strut beam frame with multiple spaced rods with equally dimensioned pipe rollers threaded thereon creating manually operated foot rotatably surface. A step deck conversion simulating a stair climbing workout comprises positioning a deck platform between opposite strut beams over said rollers. The step deck conversion unit is selectively in an operative location with treadmill in a storage location. Swing handles operative in handle assembly mounted to front exterior sides of strut beams of the treadmill foot contact surface pivoting the handles back and forth and thereby provide an arm movement simultaneously with the use of the leg exercise.