Abstract: The present invention relates to a static pose fixture (10) used for measuring a subject (42) that is the object of a motion capture system. The static pose fixture (10) provides a means for holding the subject (52) in a static position by using various struts in order to automate the sizing of a computer generated model or to position and orient markers with respect to the model.

Abstract: A golf training system for training a golfer to swing a golf club using his/her shoulders rather than wrists, by using a device having a sleeve for attaching onto the golf club and a stop arm pivotally attached to and extending from the sleeve. The golf club has a handgrip and the sleeve has a sleeve bore for extending over the handgrip and tightening thereon. A stop arm has a maximum upward angle which is adjustable with an adjustment mechanism. When the golfer grasps the golf club with a leading arm, the leading arm wrist is prevented from moving by the stop arm engaging the leading arm forearm. When the golf club is grasped with the hand of the trailing arm, the trailing arm wrist is also prevented from pivoting. Accordingly, the golfer has no choice but to use his/her shoulders to execute a swing.

Abstract: A golf swing position trainer adapted to train a golfer to swing a golf club correctly, with this device being constructed of rigid material. A handle at one end enables the golfer to grasp the position trainer with both hands and move it in the general manner of a golf club. The handle portion together with an intermediate leg portion form an arcuately shaped portion, with a relatively small U-shaped portion in effect forming a continuation of the intermediate leg portion. The relatively small U-shaped portion is disposed in an orthogonal relationship with the plane of the arcuately shaped portion. A positioning reference in effect forms a continuation of the relatively small U-shaped portion, with this positioning reference pointing away from the handle portion and serving to indicate to the golfer at one part of the swing, the line of sight to the target.

Abstract: A completely portable lightweight training aid to guide the golfer during the backswing and downswing, while at the same time allowing the golfer to strike golf balls. The aid works on the principle that movement go where there is least resistance and is designed in such a manner that when a successful swing is performed, no part of the training device would have been touched by the golfer at any stage during the entire golf swing.

Abstract: A method and device for golf swing training is disclosed wherein a double pendulum model swing is replicated by defining a point on a golfer's chest about which a golfer's swing rotates and extending therefrom a inelastic flexible strap for attachment to the grip of a golf club. The inelastic flexible strap encourages the golfer to fully extend his arms throughout the golf swing to maintain a proper swing radius without inhibiting the movement of the golfer's wrists; therefore, allowing the golfer to experience the ideal golf swing.

Abstract: A golf club having a novel golf club grip assembly is described. The grip assembly includes an elongated forearm stabilizer blade mounted directly on the upper end of the golf club shaft and extending upwardly in line with the golf club shaft. A connector rod formed integrally with the stabilizer blade extends from the golf club shaft end of the stabilizer blade and is inserted into the upper end of the golf club shaft. In use, the stabilizer blade is pressed against the inside of the forearm of the golf player to provide a steady and accurate pendulum effect when swinging the club to hit a golf ball. In a second embodiment, the stabilizer blade is fabricated separately and is slipped over an elongated rod having an exposed end which is inserted into the upper end of the golf club shaft.

Abstract: A golf-putting arm guide has an arm serpentine (1) that is attached detachably to a top end of a golf-club grip (4) and articulated to entwine the golfer's cupward arm (8) in straightness orientation for acquiring a sense of the straightness orientation to learn putting accuracy. The arm serpentine is preferably a wire having a club-grip end (2) that fits snugly into a club-grip orifice (16) in the top end of the golf-club grip. The arm serpentine includes a fore-arm guide (7) proximate a mid section that fits snugly against an inside of the front or cupward forearm of the golfer. Outwardly from the forearm guide, the arm serpentine includes an arm hook (6) that hooks onto golfer's cupward or front arm. The club-grip end can include one or more linear ridges (18) as anti-rotation fins and a snap ridge (17) which can be built onto or attachable to the club-grip end of the arm serpentine. The arm serpentine is preferably bendable to fit one arm size or a class of arm sizes rigidly.

Abstract: Golf swing training devices are disclosed. The swing training devices can be used during practice, during play, or both. In one non-limiting embodiment, the swing training device can be used by the golfer to ensure that he or she stands the correct distance from the golf ball at address. In another non-limiting embodiment, the swing training device comprises an element that is sized and configured for making contact with at least a portion of a golfer's body during a golf swing to ensure that the golfer swings his or her arms properly on the backswing, the downswing, or both.

Abstract: A device for the golf practice of short strokes and putting for a practicing person having a chest and upper arms. The device has an elongate object adapted to be fitted between the chest and the upper arms of the practicing person. The object has a central portion curved in a backward direction comprising opposite curved side portions that are curved in the same backward direction and extending to outer portions. The outer portions are curved in a forward direction opposite the backward direction. The device is held across the chest and outer portions are disposed behind the upper arms during the golf club stroke.

Abstract: An improved golf putter is provided with an upper brace member portion extending above the grip of the putter. The upper brace member portion has a lower arm brace, an upper arm brace and an anchor that are all oriented to follow the underside of a golfer's forward arm from the wrists to the armpit to brace the golfer's arm in a triangulated position in order that the golfer may utilize a pendular stroke.

Abstract: A golf training device (1) primarily for putting and chipping having a circular-shaped first plate (9) for attaching the device on top of a hand grip (17) of a golf club (3) and a second plate (6) extending from the top of the first plate (9) at an angle approximately 45 degrees so that it rests against the lower inner forward forearm of a golfer during putting and chipping. The second plate (6) is narrow on a proximal end (8) and wider on a distal end (7) where it is slightly convex to conform to the shape of the forearm. The device (1) is removably affixable to the golf club (3) by fastening means on the circular first plate (9) consisting of two opposite extensions, an abutment extension (11) having gripping teeth and the opposing extension (10) having a threaded hole (14) with an adjustment screw (12) tightening an inner clamp (15) against the grip of the golf club so that the grip of the golf club is fastened securely between the two extensions.

Abstract: The putt stabilizer improves a players putting stroke by providing a simple means to keep the wrist and forearm in position while making the stroke. The device braces the angle formed between the player's outside forearm and the putter shaft, allowing the player to keep this angle constant throughout the putt stroke. As the player learns to hold the proper position, they can gradually reduce their forearm pressure against the device until the preferred putting stroke can be made without aid from the invention.

Abstract: A golf putting training apparatus for a golfer to develop a pendulum stroke including a rigid, upright support and a shoulder engaging guide rotatably attached to the support. The shoulder guide is connected to a rotatable bearing positioned perpendicular to the ground, whereby the golfer's shoulders may only move in a vertical plane, ensuring that a pendulum stroke is achieved.

Abstract: A golf training device (1) primarily for putting and chipping having a vertical plate (6) for alignment on a hand grip (9) of a golf club (3) and a second plate (7) is attached at an angle of approximately 45 degrees to the first plate (6). The second plate (7) is for resting against the lower forearm (5) of the golfer (2) during the golf stroke to achieve and maintain a substantially triangular configuration of a golfer's arms. The device may be removably affixed to the hand grip by attachment means, such as straps (8) having hook and loop fastening material (11).

Abstract: The present invention relates to a golf swing training device that guides and coordinates a user's body position and lateral, vertical, and rotational movement when executing a golf swing relative to a target line extending horizontally in the direction of an intended target from a predetermined point at which the user would strike a golf ball with a golf club. The golf swing training device according to the present invention includes a yoke, a rotatable member, and a guide assembly. The yoke engages the upper torso of the user. The rotatable member is connected to the yoke. The guide assembly maintains the orientation of the rotatable member while it simultaneously rotates and moves laterally and vertically as the user executes a golf swing.

Abstract: The golf training aid 10 comprises shoulder position indicator means comprising an indicator arm 12 in the form of an elongate projecting arm. The indicator arm is secured on and projects outwardly and forwardly from a support member in the form of a shoulder pad. The shoulder position indicator means comprises indicator members in the form of brightly colored spheres 20, 21 which increase the visual awareness with regard to the position of the indicator arm during the execution of the golf swing and especially during the takeaway in the back swing. Accordingly, the golf training aid enables either the golfer or a golf teacher to obtain feedback in relation to the position of the shoulders during the golf swing.

Abstract: A golf swing strength trainer has a shaft of length not greater than that of a standard golf club shaft. A golf grip is fixed to one end of the shaft. A golf club head is fixed to the other end of the shaft. A pair of substantially equal weights is fixed concentrically on the shaft, one on each end of the grip, the center of gravity of the weights taken together being located substantially at a lengthwise center of the grip. Preferably, the weights abut the opposite ends of the grip. In use, as the axis of the shaft comes into horizontal and vertical alignment, the horizontal distance of the weights from the center of gravity is maximized and minimized. This relationship seems to trigger rather than inhibit the transitional phases of the swing. Since the weights, regardless of their anglular position, are equally displaced from the center of the grip, they tend to enhance rather than inhibit flow and transition of primary movers in the proper swing plane.

Abstract: A device for the golf practice of short strokes and putting for a practicing person having a chest and upper arms. The device has an elongate object adapted to be fitted between the chest and the upper arms of the practicing person. The object has a central portion curved in a backward direction comprising opposite curved side portions that are curved in the same backward direction and extending to outer portions. The outer portions are curved in a forward direction opposite the backward direction. The device is held across the chest and outer portions are disposed behind the upper arms during the golf club stroke.

Abstract: A lightweight, portable device to assist one-armed limited humans to simulate a two-handed golf grip that may may have been lost due to a stroke, accident or illness. The device features an arm cuff (10) attached to a golf club shaft tube (12) which extends a sufficient length to encapsulate a majority portion of a golf club handle (28). At the opposite end of the shaft tube 12 is a elastic retaining cord (14) which fits over the wrist of the active arm (26) thereby holding the device snugly to the arm, both at an area around the wrist and at an area around the upper forearm due to the arm cuff. A retaining leaf (22) on the side of the shaft tube acts to help stabilize oscillation of the club handle yet permits easy movement of the club handle either for length of grip positioning or extraction/insertion of a golf club.

Abstract: The present invention relates to a golf training device for use in teaching a golfer how to execute a proper golf swing, chipping stroke, and/or putting stroke using his or her own playing clubs. The golf training device according to the present invention includes a rod which defines a longitudinal axis and has first and second ends. A yoke assembly for engaging the and restraining the arms of a golfer is rotatably attached to the first end of the rod such that it is generally perpendicular to the longitudinal axis. A coupler for attaching to the grip end of a golf club is connected to the second end of the rod by a hinge having a pivot axis perpendicular to the longitudinal axis of the rod. In a preferred embodiment, the rod includes a top section and a bottom section which are rotatable relative to each other on the longitudinal axis.

Abstract: A putter for use in the game of golf including a first elongated shaft having a first and a second end, a second elongated shaft having a first end telescopically received within the second end of the first elongated shaft, a putter head fixedly secured to a second end of the second elongated shaft and a securing mechanism for fixing an axial and rotational position of the second elongated shaft with respect to the first elongated shaft. Additionally, the first end of the first elongated includes a mechanism for stabilizing the first elongated shaft with respect to the body of the user. Particularly, the stabilizer is received under an arm of the user and is capable of supporting the weight of the user should the user require assistance in walking or utilizing the putter. The putter may include a first elongated shaft in the form of a conventional putter which is received within a second shaft in the form of an upper portion of a quad cane.

Abstract: Golf club extension apparatus includes a cup or socket secured to an extension, and the cup or socket receives the end of a golf club grip portion. A tapered and slotted lock ring fits over a golf club shaft and extends into the cup and about the grip to secure the extention to the grip. The lock ring includes a taper to allow the apparatus to be used with the virtually any make of golf club or to the various sizes of golf club grips. The purpose of the extension is to be used as a training aid to demonstrate to a user that the user's swing motion is either correct or incorrect. An incorrect swing motion will result in the extension whacking the user, while a proper swing motion will allow the extension to move between the user's arms and around the use's torso during the swing motion.

Abstract: A method for swing training particularly suitable to golf and sports employing a similar swing is disclosed wherein balls of varying sizes, weights, and pliability are placed between a limb and a reactionary surface to restrict movement of a limb and nearby limbs wherein specific muscles groups are stretched and trained while imitating swing motion to induce muscle memory. The balls are placed in strategic locations including between the knees, between the thighs, under an armpit, between two arms stretched forward, cupped in two hands.

Abstract: The present invention discloses a golf training and exercise device capable of restricting a player's body position and movement to follow a rotation plane variably adjustable in three axes while exerting a lateral force against a player's upper body. The present invention comprises an exercise device for guiding pivotal and lateral movement of a player's upper body including a support standard, a positioning arm including means for variable height adjustment mounted to project from the standard, a rotational axle on the positioning arm defining a primary axis of rotation having adjustment means for positioning the axle relative to two additional axes, a yoke for receiving a player's shoulders rotatively secured by the axle to the positioning arm, and a pair of depending arms spaced apart on said yoke for confining a player against the yoke and for exerting a lateral force against a player's shoulders during rotation.

Abstract: A golf club grip assembly is provided for stabilizing and improving the swinging of a golf club. This grip assembly includes a pistol grip body adapted to be affixed to the upper end of a golf club shaft for grasping by the dominant hand of a golf player. This grip assembly further includes a forearm stabilizer blade affixed to the pistol grip body and extending outwardly from a rearward end of the pistol grip body for engaging the dominant forearm of a golf player.

Abstract: A golf club swing training method wherein the golfer swings a club while having a length of elastic material connected at one end to the elbow and connected at the other end at the contralateral hip of the golfer.

Abstract: A forward arm and a rearward arm are attached to an attachment bracket. The bracket can be attached to a putter shaft or hand grip, below the hands of a person using the device. The forward and rearward arms have upper sections that pivot relative to lower sections of the arms. Contact bars on the upper ends of the arms have contact points that touch or are very close to the forearms of a person swinging the putter properly.

Abstract: A golf swing training system that includes an arm securing mechanism for assisting a golfer to maintain the upper arm and elbow tucked against the chest during golf swing practice. The arm securing mechanism includes hook and pile fastener areas that allow for easy attachment of the upper arm and/or elbow areas of the user's arm to a natural location on the user's chest. The golf swing training system includes a chest strap assembly and an arm strap assembly that are securable together to restrict movement of the user's arm during practice golf swings.

Abstract: A putting practice device preferably includes a body and an extension. The body preferably has a concave surface for receiving a forearm or wrist. The extension can be coplanar with the body and extends away from the body. At least one receiving hole is defined by the body or extension. A golf tee partially passes through the receiving hole and is partially inserted into a top end of a putter. The device optionally includes a flange surrounding the periphery of the body and extension and a center section surrounding the receiving holes. The flange and center section can have a thickness greater than the thickness of the body and extension.

Abstract: A golf putting trainer adapted for releasable attachment to a golf putter and for folding neatly into a storage position and placing in a golf bag when the training is completed. The golf putting trainer includes a "U" shaped grip support having a lower grip arm with strap for wrapping around a lower portion of a golf putter grip and an upper grip arm for engaging a butt end on an upper portion of the golf putter grip. A wrist swivel with wrist swivel adjustment nut is mounted on the upper grip arm. A lower end of a height adjustment rod is pivotly attached to the wrist swivel and secured thereto using a pivot adjustment nut. An upper end of the height extension rod is slidably received in a lower end of a height extension tube and secured thereto using a height extension nut. A forearm swivel tube is pivotly mounted on an upper end of the height extension tube and secured thereto using a forearm swivel nut.

Abstract: The present invention provides a golf swing training device which allows the angular relationship of the leading and trailing forearms with respect to each other to change during the golf swing while substantially maintaining the distance between the forearms at the points at which the training device is attached to the forearms. The device comprises a first strap which attaches to the leading forearm below the elbow and above the wrist, a substantially rigid spacing member that is attached to the leading forearm strap by means of an articulating joint, and a second strap attached to the other end of the spacing member which attaches to the trailing forearm below the elbow and above the wrist. The spacing member preferably is adjustable in length to accommodate different distances between the forearms.

Abstract: A forearm mounted wrist position training device for signaling a golfer when his or her wrists bend improperly during a golf swing. A housing is secured to a forearm with a sensor pad engaging the back of the hand. The pad position can be varied to fit the forearm and wrist position when the golfer addresses the ball. The pad is mounted on one end of a sensor lever with an attachment device attached to the other. An actuator lever is fastened to the attachment device, with the other end pivotally mounted in the housing adjacent to a switch. When the golfer bends his or her wrist beyond a selected limit, the actuator lever will close the switch which will then activate a battery powered circuit to produce a signal such as an audible beep. The training device can be placed on either wrist and is useful with putters and other clubs. The golfer will learn to hold his wrists in the proper position by avoiding causing the signal to sound.

Abstract: A device which indicates a change in the angular position of a golfer's hand during a backswing. The device includes a continuous rod having parallel segments detachably mounted to a wrist encircling support, and the rod is bent to form an arcuate portion extending of an angle with respect to the parallel segments. When the golfer's hand engages the arcuate portion, the commencement of a downstroke is indicated.

Abstract: A golf swing improvement device that includes two adjustable wrist encircling members, a golf club gripping member capable of fitting on any golf club, and a stretchable, flexible linear portion having two end areas. One of the end areas is attached to one of the wrist encircling members and the other end area is attached to the other wrist encircling member. A central area of the linear portion is firmly held by the golf club gripping member so that the length of linear portion extending between each wrist encircling member and the golf club gripping member may be separately adjusted in length.

Abstract: A method for swing training particularly suitable to golf and sports employing a similar power swing is disclosed wherein preferably pliable body spacer objects such as balls of varying sizes, weights, and pliability are placed between a limb and another body surface to restrict movement of said limb wherein specific muscles groups are stretched and trained while imitating swing motion to induce muscle memory. A lightweight ball of at least 25 cm. diameter is placed between the thighs and a smaller ball, e.g. a medicine ball of about 10-25 cm. diameter is gripped between the elbows. Also a ball or other object may be gripped under an armpit.

Abstract: A golf putting practice device which is adapted to be worn on the wrist of the user, which includes a housing containing an alarm system including a sensor, an operating lever pivotally connected to the housing and biased in a predetermined neutral position, a switch lever fixed at one end to the operating lever in the neutral position and extending into the housing in close proximity to the sensor, whereby when the operating lever and associated switch lever are moved from the neutral position, as a result of a bending of the wrist, the switch lever engages the sensor which activates the alarm system, which signals the bending defect in the putting stroke.

Abstract: The present invention provides a collapsible tactile joint support for therapeutic use or as a training aid for sports. The collapsible tactile joint support of the present invention provides corrective tension for the joint up to a predetermined threshold level that is reached by applying an internal or external force, at which point the joint support bends or collapses thereby releasing the corrective tension and freeing movement in the joint. A collapsible tactile wrist support for use as a golf training aid is also described.

Abstract: The current invention is a non-restrictive wrist break feedback apparatus for producing feedback concerning wrist joint position. The invention is useful in monitoring wrist motion for any sport but particularly useful for monitoring the "breaking" motion of the wrist during the play of golf. The device provides feedback in the form of an audible signal when the position of the hand in relation to the position of the forearm deviates from a desirable range, in respect to the forearm. The wrist break feedback apparatus of the current invention includes a frame with a first member, that generally aligns with the back of the hand, and a second member, that is pivotally connected to the first member. Feedback is produced when the first member deviates from the second member by more than a predetermined amount in a transverse direction relative to the forearm due to dorsiflexion.

Abstract: The apparatus described in the specification comprises a golf stoke training apparatus for developing muscle memory relative to a golf stroke. The apparatus includes a flexible strap having a shoulder portion, a first arm portion and attachment device for attaching the first arm portion to a golfer's arm and a second arm portion and finger strap for attaching the second arm portion to a golfer's hand in order to maintain the golfer's wrist in a flexed position during the golf stroke. The device is relatively simple, inexpensive to manufacture and substantially maintains the golfer's arms and shoulders in a fixed position relative to one another throughout the golf swing so that muscle memory is developed in the golfer relative to the stroke.

Abstract: A golf training device adapted for attachment to a golf club grip for training a golfer to pivot and maintain a solid leading arm is disclosed. The device includes a body contacting arm having a first end adapted for attachment to the golf club grip and a free second end which contacts the body of a golfer when the golfer fails to pivot or maintain a solid leading arm as the golfer strikes a golf ball. The body contacting arm is shaped to lie adjacent, but not touch, the front hip of a golfer when the body contacting arm is properly attached to the golf club grip and the golfer addresses the golf ball. In use, the second end of the body contacting arm moves adjacent, but does not contact, the front hip of the golfer when the golfer pivots and maintains a solid leading arm as the golfer strikes the golf ball. However, the second end of the body contacting arm contacts the golfer if the golfer fails to properly pivot or maintain a solid leading arm as the golfer strikes the golf ball.

Abstract: A training device for golfers consists of a flexible fabric sleeve and a pocket containing a lengthwise concave metallic strip positioned at the outside of the players elbow on the leading arm of the player (left arm for right handed player). Positioning the strip to the outside of the radius of flexion of the joint and over the bony protrusion of the ulna (the olecranon) as a fulcrum causes the strip to audibly deform at a small and precise degree of movement of the joint. The sleeve does not restrict flexion of the elbow, but since a straight arm non-flexed position of the arm is desirably maintained from the backswing and to the follow through, any flexion will cause the metallic strip to audibly emit a clicking sound, alerting the player to erroneous form.

Abstract: A golf swing timing trainer formed, in its preferred embodiments, from (a) a forearm brace that serves as a base for the other operative elements of the device; (b) a generally linear member, which member is pivotally connected to the forearm brace at one of its ends and has a vee shaped notch at its other end which fits against the shaft of a golf club held by the user when said club is cocked in the proper plane for a golf stroke; (c) an adjustable biasing means disposed between said forearm brace and said generally linear member, which biasing means generates an adjustable force proportionate to the angle between the forearm brace and the generally linear member/shaft such that the greatest force is experienced by the user when the shaft is cocked and the least is experienced by the user when it is fully extended; and (d) an audible signal generator that indicates when the shaft is not fully cocked.

Abstract: A golf swing training device includes belt structure having end portions constructed and arranged to be joined to fix the belt structure around a waist of the user. The belt structure has a central portion between the end portions. A strap member is provided and is constructed and arranged to be fitted around an arm portion of the user generally adjacent an elbow of the user.

Abstract: A golf club swing teaching aid is provided having an elongated inflatable tubular sleeve adapted to be worn by the golfer to restrain bending of the golfer's leading arm during backswing. An alarm assembly which emits an audible signal is mounted on the sleeve for alerting the golfer that his or her leading alarm has been allowed to bend to an undesirable extent during backswing of the golf club. Means is provided for adjustably mounting the alarm actuating components of the alarm assembly on the sleeve so that the golfer may select the degree of bending of his or her leading arm that may take place during backswing of a golf club before the audible alarm is sounded. Selective adjustment by the golfer of the degree of adjustment of the sleeve also has an effect on the timing of the audible alarm.

Abstract: A grip extender for extending the length of a golf club to form a chip shot training club, wherein the golf club includes an elongated hollow tube handle defining a central axial aperture at a free end thereof opening into the interior of the tube handle along the central longitudinal axis thereof. The grip extender includes an elongated substantially hollow main body having a longitudinal axis, and an elongated rod mounted on and extending longitudinally axially from one end of the elongated main body. The rod is configured to define an initial straight length of rod and a subsequent plurality of reversing bends which are substantially symmetric relative to the central longitudinal axis of the hollow main body. The rod is insertable into the tube handle such that the reversing bends engage the tube at a plurality of longitudinally spaced locations on different sides thereof for positively supporting the grip extender on the golf club in continuous longitudinal axial alignment therewith.

Abstract: An alignment device is disclosed for use in sports such as golfing which includes a generally planar breast plate adapted and configured to be worn adjacent the golfer's chest, an elongated shaft supported by the breast plate and extending laterally therefrom for visually aligning oneself with a distant target on a golf course when addressing a golf ball, and a harness assembly associated with the breast plate for securing the breast plate adjacent the golfer's chest.

Abstract: A golf club putter having an elongated shaft that is used in a manner that insures a golfer putts with a pendulum type stroke, as recommended by many Professional Golf Association teaching professionals. The elongated putter consists of two tapered shaft sections where a smaller lower section can collapse inside a larger upper section, a putter head affixed to the bottom end of the lower section, a elongated grip extending down from the top of the upper shaft section and a 30 degree bend at the bottom of the lower shaft section for proper alignment of the putter head when the golf club is held in position for putting. During putting, the elongated putter is positioned with the upper end of the shaft in the golfer's forward arm pit, or, for taller players, up under the forward arm against the side of the chest. The golfer's hands are positioned on the grip in the middle of the shaft to guide the putter along a line that will direct a ball towards the hole.

Abstract: A device for positioning on the back of a golfer's hand to provide the golfer with an audible signal when the golfer's wrist has a selected angular orientation during critical portions of the swing of a golf club. The device includes a pair of multicontact orientation sensitive switches, with separate or joint connection provided, such that internal electrical connections are made only when the desired angular orientation of the wrist is achieved. When such connection is made, the circuit of the device provides an audible signal that is heard by the golfer. This proper wrist orientation, and the electrical connection, must be maintained during the golf swing in order to continue the audible signal. A change in the signal indicates that the preferred orientation is not maintained. The orientation switches are disk mercury switch units having twelve internal contacts positioned at thirty degree intervals.

Abstract: A golf swing training device includes an indicator rod mounted adjacent the golfer's shoulders by a shoulder mount and extends a predetermined distance from the golfer substantially perpendicular to an axis defined by the golfer's spine. The indicator rod is adapted to be guided by a guide member or structure supported adjacent the golfer so that as the golfer performs a golf swing the indicator rod engages and follows, but is not constrained by, the guide member or structure throughout the swing. The guide member or structure is effective to urge the indicator rod and thus the body movement of the golf in a preferred motion and to provide information regarding deviations from the desired swing. The information is provided by visual observation of the indicator rod and sound as the indicator rod movingly engages the guide member or structure.

Abstract: A training device mountable to an arm of an athlete for developing a proper arm swing. The training device includes a support body mountable to the arm of the athlete, a sensor assembly carried by the support body for detecting displacement of the arm in two directions of movement with one direction of movement being rotation about the longitudinal axis of the arm and the other direction of movement being bending of the arm. A signal actuator coupled to the sensor assembly produces a detectable signal when the sensor assembly detects displacement of the arm in at least one of the two directions of movement.