A wearable training apparatus has a vision-control assembly and a head-mounting assembly coupled to the vision-control assembly. The vision-control assembly has a see-through area corresponding to a central portion of the human field of vision (FOV), and a vision-blocking area for blocking the human peripheral FOV except the central portion thereof. The wearable training apparatus may be in the form of a pair of eyeglasses with lenses provided with reduced FOV or alternatively, may be in the form of a goggle with reduced FOV. A training system may comprise one or more wearable training apparatus, one or more imaging devices for recording images and/or video streams of the performance of users wearing the training apparatuses, and one or more computing devices for playing back and analyzing the recorded images and/or video streams.

A golf club has a first shaft coupled to a club head, a second shaft configured to slidably engage a portion of the first shaft, a grip coupled to the second shaft, and an adjustable length shaft assembly received by the second shaft and configured to allow a portion of the first shaft to slide in relation to the second shaft in a first configuration, and to restrict a portion of the first shaft from sliding in relation to the second shaft in a second configuration. The grip is restricted from rotation about the first shaft or the second shaft as the first shaft slides in relation to the second shaft.

Methods, systems, and apparatus, including medium-encoded computer program products, for 3D flight tracking of objects include a method including determining a golf ball trajectory based on observations by sensor(s), extrapolating the trajectory backward in time, calculating distance measure(s) between the extrapolated trajectory and physical locations, estimating a systemic error for observation(s), wherein the systemic error affects observed ball positions, estimating a stochastic error associated with the observation(s), wherein the stochastic error affects an angle of a trajectory determined from observed ball positions, combining the estimated systemic and stochastic errors to form error measure(s) for the distance measure(s), identifying one of the physical locations as an origin for the golf ball when the error measure(s) satisfy a criterion, and waiting for additional observations of the golf ball by the sensor(s) when the error measure(s) do not satisfy the criterion.

Embodiments of golf gloves having a cut out portion and methods to manufacture gloves having a cut out portion are generally described herein. Other embodiments of gloves may be described and claimed.

An exercise apparatus includes an adjustable frame being attachable to an assistive ambulation device. The adjustable frame includes removable handles, fitting arms located on a lower portion of the adjustable frame to receive a fitness attachment, and attachment points on located on the lower portion of the adjustable frame to couple a resistance device. A jump rope trainer includes a handle; flexible tubing including a handle fastener to connect the handle to the flexible tubing; and a soft sphere shaped object. The flexible tubing includes a soft sphere shaped object fastener to connect the soft sphere shaped object to the flexible tubing.

A game-play environment includes a tee box, a range surface, and a monitor. The tee box is configured to permit a player to hit a golf ball onto the range surface. The range surface has a plurality of physical markers. The monitor depicts a virtual environment that includes a plurality of virtual components. Some of the virtual components are visual cues that correspond to the physical markers. A player can play the game by targeting the appropriate physical marker that corresponds to the desired visual cue.

An exercise apparatus for strengthening the hips that includes a belt adapted for being tightly secured around the hip area of a user and a resistance band attached to the belt at a position wherein the resistance band resides proximate the hips. An anchor is provided for attaching a distal end of the resistance band to a support generally at a level with the hips whereby rotating the hips applies resistance to the hips providing strengthening resistance to the hips. A method of using the apparatus is disclosed.

Disclosed golf club heads include a body defining an interior cavity, a face, a sole, a crown, and a hosel. Certain embodiments include a weight channel positioned in the sole and defining a path along the sole. Some embodiments include a weight member positioned in the weight channel that is configured to be adjusted to any of a range of selectable positions to adjust mass properties of the golf club head. A fastener may be configured to secure the weight member in any of the selectable positions, while the fastener itself, regardless of where the weight member is positioned along the path, may be secured to the body at a fixed location that is independent of the position of the weight member along the path. Additional discretionary mass elements may be added to the weight member, such as at its ends, to further adjust mass properties of the golf club head.

A system and method for monitoring performance of a physical exercise routine. The system comprises a plurality of motion and position sensors configured to generate sensory information including at least a rate of movements of a user performing the physical exercise routine; a database containing routine information representing at least an optimal execution of the physical exercise routine; a training module configured to: compare the generated sensory information to the routine information to detect at least dissimilarities respective thereof, wherein the dissimilarities indicate if the pace of performing the physical exercise routine is incorrect; provide feedback to the user with at least instructions related to correcting the pace of performing the physical exercise routine; and a display for displaying the feedback.

Techniques are provided for implementing a system for determining the range to a target object and orienting a map. In implementations, GPS data is used to determine the location of the system and an approximate distance from that location to the target. Based on the approximate distance, one or more parameters of operation of the system may be set. Modes of operation may be entered to further adjust parameters of operation. An optical pulse may then be projected at the target and its reflections collected and analyzed to calculate a distance measurement. A visual display may be adjusted based on the calculated distance estimate to the target.