A lighting system for a treadmill comprising front power disks positioned at each end of a front axle, rear power disks positioned at each end of a rear axle, a spring-loaded carbon brush associated with a respective power disk, each spring-loaded carbon brush attached to a fixed part of the treadmill and in physical contact with the respective power disk, each spring-loaded carbon brush electrified by a primary power source and in turn electrifying the respective power disk, and a first conductor connected to at least one slat of the multiple slats and a second conductor connected to the at least one slat, the first conductor and second conductor in electrical communication with a light on the at least one slat and in contact with one of the front power disks or the rear power disks.

A method of varying a dynamic resistive force during a strength training exercise includes receiving a selection of the strength training exercise from a set of available strength training exercises and obtaining exercise logic for the strength training exercise from computer memory. The exercise logic provides instructions for generating a vector that defines the dynamic resistive force provided at an end effector of a strength training apparatus during the strength training exercise. The method includes determining a real-time geometric arrangement of a plurality of cables coupled to the end effector, generating, based on the real-time geometric arrangement of the plurality of cables and the exercise logic, time-varying operating setpoints for a plurality of actuator assemblies coupled to the plurality of cables, and exerting the dynamic resistive force at the end effector by controlling the plurality of actuator assemblies in accordance with the time-varying operating setpoints.

A treadmill having a tread comprising multiple slats is configured to rotate around a front axle and a rear axle of the treadmill, wherein at least one of the multiple slats is a lighted slat. The lighted slat comprises a slat base having an upper surface, a leading edge and an underside. A light is attached to the slat base. The treadmill further comprises a power source for the light.

An exercise machine creates a simulated continuous resisted climbing motion. The machine includes a floor- or ground-contacting base frame and two or more substantially vertically oriented uprights, wherein at least one upright is rigidly connected to the base frame. The machine further includes two handles and two foot pedals, each handle and each foot pedal being movably engaged with an upright for linear reciprocating motion along the upright. The handles and foot pedals are interconnected so that they move concurrently. An adjustable resistance mechanism may be operatively connected to the interconnection of the handles and foot pedals to provide adjustable resistance for the simulated continuous climbing motion.

An exercise monitor and method thereof having: a displacement sensor; a processing unit having a processor, clock, a memory storage device, and instructions for (1) computing a bounce rate using only displacement data and time data, (2) computing upper and lower displacement thresholds using only displacement data, and (3) for computing intensity using only bounce rate (beat frequency) and upper and. lower displacement thresholds. There is a display unit and a wireless connection to a handheld device on which computed information is displayed. Such automatically monitors workout intensity by receiving displacement data from a single displacement sensor and calculating upper and lower displacement thresholds to use to determine both heat frequency and intensity per beat via which intensity over a period may be displayed to a user.

A symmetric upright rotating disc exercise machine includes a base unit and two upright rotating disc units. Each upright rotating disc unit includes a rotating shaft, an upright disc, and a grip. The rotating shaft is pivotally connected to the base unit in a horizontal direction. The upright disc is mounted to the rotating shaft. The upright discs of the two upright rotating disc units are arranged to face each other. The two upright rotating disc units are separated from each other by a distance in the horizontal direction to form an operation space. The grip is mounted to the upright disc and located in the operation space.

A multifunctional fitness device comprising a fitness device body, a support arm and an intelligent control system, with a display device being disposed on a front surface of the fitness device body, the display device being a mirror display screen having functions of video teaching and ordinary mirror, a camera device being disposed at the top of the display device, and the camera device including a micro-camera and an infrared camera, support arms being disposed at both sides of the fitness device body through sliding rails respectively, a gear groove being disposed on the support arm, a gear fixing device for use in cooperation with the gear groove being disposed on the sliding rail, a rope being disposed inside the support arm, the other end of the rope being connected with an intelligent motor, which motor produces resistance to provide a resistant force to the support arm.

Provided is an air sensor, coupled to an air inlet of an air-filled product that is filled with air to maintain a shape thereof, the air sensor including: a connector coupled to the air inlet and communicated with an interior of the air-filled product, thereby allowing air in the air-filled product to be introduced into an interior of the connector; a silicon sensor provided inside the connector, thereby being operated by air pressure of the air-filled product; an impact sensor configured to detect an impact caused by an operation of the silicon sensor; and a PCB connected to the impact sensor, thereby displaying the number of times according to a detection signal of the impact sensor.

In one aspect, the invention features a barbell including a first end portion, a second end portion, and a middle portion, where the middle portion is couplable to the first end portion and the second end portion. The middle portion includes a male coupling extending from a first end of the middle portion, the male coupling providing a first coupling mechanism that engages with a corresponding female coupling of the first end portion, and a female coupling providing a second coupling mechanism that engages with a corresponding male coupling of the second end portion.

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.