An electronic golf aid system for assisting users with reading greens on golf courses includes a camera that captures images of the user's field of view, and an electronic display device with a display screen that displays captured images. A processor, which communicates with the camera and display device, is programmed to: receive signals from the camera indicative of images of a golf ball and a cup on the green; determine respective locations for the golf ball and cup; determine a perspective view of the topology of the green between the golf ball and cup from the user's point of view; determine, based on the green's topology, a proposed trajectory line from the golf ball's location to the cup's location; and direct the electronic display device to display the proposed trajectory line superimposed on the surface of the green as the green is shown in real-time on the display screen.

A golf hip-turn timing practice device according to the present disclosure includes: a fastening belt; a first retainer; a plurality of second retainers; and a hip-turn link stick that is fitted in the first retainer and the second retainers in the longitudinal direction of the fastening belt to be fixed at the position and is longer than the width of shoulders. The golf hip-turn timing practice device provides an advantage in that the golf hip-turn timing practice device enables correct swing timing practice by timing a hip-turn, which is a movement of a lower body, with the movements of the arms and hands of the upper body in golf swing. Further, the golf hip-turn timing practice device provides immediate feedback when the timing is wrong, is easily worn on the waist, and corrects a wrong swing by accurately showing the plane by hip-turn.

Articles, kits, and methods for enabling an individual to improve their top-hand grasp of a handled object, such as a baseball bat. An article has an arcuate inner portion having a groove that extends along a length thereof, configured to reversibly engage the handled object. The article also has an irregular outer portion with a thumb support that arcuately extends from the irregular outer portion, configured to reversibly engage the individual's top-hand. During use of the article in a method of the invention, the article enables the individual to grasp the handled object with the fingers of their top-hand, rather than the palm and thumb of their top-hand, to improve acceleration, velocity, precision, accuracy, and form of the individual's swing when the article is not used, as well as improved safety and consistent grip technique when it is used.

A shoulder motion exercise device, kit, and method of use having a retainer, a plurality of connectors, an extender, and a slider. The device aids in the stretching and exercise of at least a shoulder and a portion of the torso.

A golf training aid is described that stabilizes a wrist and an elbow of a golfer during a golf swing. The golf training aid includes a flexible sleeve and an elongated rigid insert. The flexible sleeve is configured to receive the wrist and the elbow of the golfer. The elongated rigid insert is secured to the flexible sleeve. The flexible sleeve keeps the rigid insert in contact with the wrist and the elbow of the golfer so as to prevent pivoting of the wrist and pivoting of the elbow.

Disclosed are various embodiments of golf training device that helps a golfer learn and coordinate lower body positions and movements with upper body movements, using a series of feedback signals. In one embodiment, among others, a system comprises a foot sensor that attaches to a Lead Foot of a user. The foot sensor is configured to detect a heel of the Lead Foot being raised. The system also comprises a leg sensor that attaches to a Trail Leg of the user, and the leg sensor detects a bend in the Trail Leg of the user. The foot sensor is configured to detect the heel being lowered at an instance after the detection of the bend in the Trail Leg. The system further comprises a feedback device configured to activate one or more feedback indicators after the detections of foot and/or leg movements.

Provided is a golf training apparatus that helps a golfer learn a swing with trunk rotation and limited excessive arm movement, which includes an attachment member configured to be detachably attached to a pants belt loop on the front and right side of a user's waist, a case to which the attachment member is fixed, and first and second pads attached to the case via first and second string-like members, respectively. A force in a direction of winding up the first string-like member inside the case is constantly applied on the first string-like member, and the same applies to the second string-like member. The user executes a practice swing with the first and second pad sandwiched under the armpits. If the user opens an armpit, the first or second pad is pulled by the first or second string-like member and then returns to a region near the case.

An exercise rating and improvement system comprising: a feature amount extraction unit for extracting, from information obtained from a subject, a feature amount about exercise efficiency; an rating unit for rating exercise efficiency of the subject by comparing the extracted feature amount and a feature amount to be compared; and an improvement information providing unit for providing, on the basis of the rating result, information such that the feature amount of the subject approaches the feature amount to be compared.

Apparatus, systems, and methods are provided for measuring and analyzing movements of a body and for communicating information related to such body movements over a network. In certain embodiments, a system gathers biometric and biomechanical data relating to positions, orientations, and movements of various body parts of a user performed during sports activities, physical rehabilitation, or military or law enforcement activities. The biometric and biomechanical data can be communicated to a local and/or remote interface, which uses digital performance assessment tools to provide a performance evaluation to the user. The performance evaluation may include a graphical representation (e.g., a video), statistical information, and/or a comparison to another user and/or instructor. In some embodiments, the biometric and biomechanical data is communicated wirelessly to one or more devices including a processor, display, and/or data storage medium for further analysis, archiving, and data mining. In some embodiments, the device includes a cellular telephone.

A grip holder for correcting a grip feeling and a golf glove provided with the grip holder includes supporting grooves arranged on the grip holder such that each of end portions of a middle finger, ring finger, and small finger is guided to be respectively in close contact with the supporting grooves when a grip portion of the golf club is held; a close-contact groove recessively formed on a first side where the supporting grooves are foiled such that the close-contact groove is configured to be in close contact with an outer longitudinal portion of the grip when the grip is held; and a protruding portion formed on an opposite side of a portion.