Abstract: A kit for performing exercises. The kit includes a back board, a standing board and a bench press bar. The kit also includes a plurality of bungee cords that are of different strengths and which can be attached to the various elements of the kit to establish a precise resistance to accommodate a particular user for a particular exercise.

Abstract: An exercise device (10) is provided with a twist cap (14) spaced apart from a base cap (12) with a resistance assembly (52) therebetween. The resistance assembly (52) includes a spring (20), a rotating member (26) that rotates with the twist cap (14), and a translating member (30) threadably engaged to the rotating member (26) and configured to variably deform the spring (20) due to rotation of the twist cap (14) in order to adjust the resistance level. An annularly pleated sidewall (16) and a vent means (18) may be included to provide a further resistance means. The exerciser compresses the twist cap (14) towards the base cap (12) to experience both compressive and bending resistance.

Abstract: A punching bag assembly is provided for facilitating simultaneous practice of body punching and uppercut punching. The assembly includes a first punching bag having an upper end and a lower end. At least one first bag chain is coupled to the first punching bag whereby the first punching bag is configured for being coupled to a support structure positioned above the first punching bag. A second punching bag has a central opening. The upper end of the first punching bag is inserted through the central opening such that the first punching bag extends through the second punching bag and the second punching bag is positioned proximate the upper end of the first punching bag.

Abstract: A neck exercise machine is provided for standing use. The machine has a head pad which can be vertically adjusted to accommodate different user heights. The head pad is mounted on an arm, which is pivotally connected to the machine frame for movement about a first horizontal axis, so that the arm and head pad can be raised and lowered, and then locked in place for use. The head pad is connected to a cam for rotation about a second horizontal axis in use, with selected resistance.

Abstract: An exercise device for performing push ups and pull ups is disclosed. The device contains first and second tubes slidably engaged with a handle, which may be covered by a grip. A spring biases to the two tubes, drawing them inwardly together with respect to the handle. A first foot tube, including a first base, engages the second end of the first tube; a first button connector arranged to selectively lock the first foot tube with respect to the second end of the first tube. A second foot tube, including a second base, engages the second end of the second tube; and a second button connector selectively locks the second foot tube with respect to the second end of the second tube. The device may be engaged with a door frame to perform pull-ups.

Abstract: A double loop exercise strap that includes both an outer strap anchored to a fixed object (e.g., a wall, rail or other fixed platform) and an inner strap that wraps firmly around a limb, extremity (e.g., hand or foot) or torso of the human body. The inner strap has two ends, a fixed end that may advantageously be sewn or attached to the outer strap and a free end that wraps around the human limb, extremity or torso and is threaded through an outer strap slot before being attached to the outside of the outer strap using VELCRO™, buckles or other types of fasteners to thereby create a closed double loop system.

Abstract: An exercise apparatus is disclosed. The exercise apparatus comprises: a three-dimensional coordinate system having an x-axis, a y-axis, and a z-axis; lower limb segments; a moving arm; a multi-axis force sensor; at least one footplate attached to said multi-axis force sensor for supporting a human foot or shoe; a compact real-time ankle motion measurement device, said motion measurement device attached between the leg and foot and capable of measuring the ankle joint motion in at least one degree of freedom; and a central processor, said central processor capable of calculating lower-limb joint moments in real time. The central processor calculates lower-limb joint moments with a modified inverse dynamic method, which does not involve computation of location of center of pressure.

Abstract: A forearm exerciser apparatus that includes a box-shaped member having a pulley assembly disposed thereupon, said pulley assembly in operational communication with a bottom pad suspended within said box-shaped member by means of a cable, said bottom pad configured to receive extant weights additional thereto, wherein said bottom pad is liftable when the pulley assembly is moved between a first position and a second position, whereby the flexor and extensor muscles used to open and close a hand are strengthenable thereby.

Abstract: Variations of an improved weight bar clamp are disclosed herein. A weight bar clamp includes a collar with two opposing walls that extend from a common end. The collar may be a one-piece collar or a multi-piece collar. The opposing walls may also include an arced interior surface and a plurality of structural ribs. The structural ribs extend in an arc partially between the common end and a terminating end of each opposing wall. The weight bar clamp may further include a biasing member that biases cam halves coupled to the opposing walls away from one another. The clamp further includes handle coupled to the cam halves. The clamp includes a cam opening configured to allow the cam halves to separate in an open position and push the cam halves toward each other in a closed position.

Abstract: This invention is for a starting apparatus for an inertial pendulum. The apparatus is provided with elastic strands twisted about each other and inelastic strands wound about the twisted strand and the ends of the strands are secured to each other so that when one end of the strands is attached to an inertial element and tension is applied to the other end the strands are caused to untwist and the inertial element caused to rotate.

Abstract: A skipping rope having at least one handle comprising an elongate hand grip, a mounting portion which is fixed to the hand grip and an attachment arrangement by which a rope or cord is affixed to the mounting portion, the attachment arrangement allowing the rope or cord to be secured to the mounting portion at any of a range of locations along its length.

Abstract: A hand held exercise device for providing a user with a portable workout. The device may generally comprise a central handle diametrically disposed within and spanning across a ring element having a toroidally shaped inner chamber. Internal bumpers within the inner chamber act to limit the range of motion or travel of at least one mobile element within the inner chamber. Rotational forces imparted by the user upon the handle cause movement of the at least one mobile element that is responded to and countered with user muscle flexion. In this manner, a user may perform a satisfactory workout by continually imparting and then resisting rotation force in alternating clockwise and counterclockwise directions.

Abstract: An exercising apparatus for exercising muscles in the abdominal region of a user's body may include a stationary primary body support configured to support upper portions of the user's body including the abdominal region. The primary body support may include a primary body support surface oriented to support a user's back in a rearwardly inclined position and a secondary body support surface for supporting the user's buttocks. A movable carriage may be configured to be engaged by the user's lower leg portions and may be movable along a substantially linear path extending generally toward and generally away from the secondary body support surface. A resistance application assembly may be configured to apply an adjustable degree of biasing force to the carriage in a direction generally away from the secondary body support surface to resist movement of the carriage toward the secondary body support surface.

Abstract: A treadmill includes a tread platform having two longitudinal frame bars, a swing unit pivotally mounted at the bottom side of the tread platform, and two inclination angle adjustment blocks. Each inclination angle adjustment block has a core shaft defining an axis line, and a plurality of bearing faces connected to one another and respectively disposed in parallel to the axis line and adapted for selectively supporting the tread platform on the ground. Each bearing face defines with the axis line a respective different vertical distance. The core shafts of the inclination angle adjustment blocks are pivotally coupled to the swing unit to support the inclination angle adjustment blocks at an outer side relative to the longitudinal frame bars of the tread platform. Thus, the treadmill allows manual multi-angle adjustment of the angle of inclination of the tread platform.

Abstract: A simulated sparring partner apparatus and method for the training and exercising of a boxer, including a variable path and height track, a target article such as a punching bag or boxing pear suspended from the track, one or more drives for moving the target article along the track, and a control apparatus for controlling the speed and direction of movement of the carriage along the track. The drive may move the punching bag at various speeds and in either direction, either on its own, or as a result of the boxer's actions. Also, the drive may be programmable such that the carriage follows a predetermined path at predetermined speeds.

Abstract: An exercise apparatus is provided for strengthening the wrists, forearms and chest of a user through manipulation of a compact easy to use assembly. The apparatus includes a first handle and a shaft extending from the first handle. A protrusion extends from the shaft and is positioned proximate a distal end of the shaft relative to the first handle. A second handle has a cylindrical inner wall forming a chamber extending into the second handle from an opening in a first end of the second handle. The chamber is shaped to receive the shaft. A biasing member is positioned between the first handle and the second handle. The biasing member is compressed when the shaft is inserted into the chamber.

Abstract: A trampoline has a bed. The bed is made of a sheet of fabric having an exterior periphery. A frame includes legs supporting the frame from the ground. A plurality of springs attach the bed to the frame. A light sound module is suspended under the bed. The light sound module includes a light emitting element mounted on a rotation rod. The rotation rod is mounted on a rotation axis, and the rotation rod is driven to rotate by a motor. A plurality of elastic cords has a length, namely a first elastic cord, a second elastic cord, and a third elastic cord.

Abstract: An abdominal exercise equipment is provided with two front wheels and two rear wheels to ensure that the abdominal exercise equipment can move stably without tipping over during movement, preventing the exerciser from losing balance and getting hurt. A return gear assembly is disposed between the two rear wheels to produce a recovering force. Therefore, when the abdominal exercise equipment is pulled back, the recovering force will assist the exerciser to pull the abdominal exercise equipment back, which consequently lowers the difficult level of exercise. Furthermore, the abdominal exercise equipment is provided with a vibration device which is capable of softening the muscles and fat, and speeding up fat loss by producing vibration.

Abstract: A fighting arts shield like device designed to be carried or mounted. Through hitting the apparatus the contestant can condition and develop muscles and technique. The device may be either solid or hollow. The shield front is specifically developed to represent striking areas found on a human target and developed such that a properly delivered strike will land solidly; improper or techniques delivered from the wrong distance will not land appropriately. The backside is uniquely developed with features that enhance the holder's ability to hold and direct the shield thereby enhancing its utility. The shield is carried in a boxing on-guard position. The shield like device may have an optional electrical component that allows measurements to be made of the speed, power and force vectors of strikes where data may be instantaneously presented by audio and visual indicators or disaggregated or used at a later date.

Abstract: A weight lifting system includes a handle bar and two weight plates. The handle bar is made of a first material and is attached to the two weight plates by inserting each of two ends of the handle bar in a hole in each of the two weight plates, wherein at least one of the two weight plates comprises a center portion made of a second material and a peripheral portion made of a third material, wherein the third material is different from both the first material and the second material, wherein the center portion comprises the hole, in which one of the two ends of the handle bar is inserted, and the center portion is welded to the handle bar.