Protective device having a general U-shape and being associated with a longitudinal direction arranged to run along the teeth of a user along the general U-shape, the protective device including an outer, stiff material body, arranged to define a rigid outer shape of the mouthguard; and an inner material body, arranged to define an inner shape of the mouthguard, the inner material body being made from a plastic material arranged to soften when heated so as to be molded, in heated condition, onto the teeth of the user, the inner material body being arranged to cover at least part of a bottom, a front wall and a back wall of the outer material body, a part of the inner material body covering at least part of the bottom being arranged, in the cross-section, to define a shape with a front part, a back part and a relatively thicker central part.

Various embodiments of an arm support are disclosed. An arm support may include a support member having a forearm section and an elbow section. An arm support may have a plurality of opposed longitudinal slots adapted for engagement with releasably attachable straps for securing the arm support to a person's forearm. A support member may bend upwardly at a transition point between the forearm section and the elbow section. A forearm pad may be attached to the forearm section. An elbow pad may be attached to the elbow section. The elbow pad may include an upwardly inclined surface. A support member may include a concave upper surface. An arm support may be useful to prevent hyperflexion or hyperextension, such as hyperextension of the elbow joint of a bowler.

Various embodiments of an arm support are disclosed. An arm support may include a support member having a forearm section and an elbow section. An arm support may have a plurality of opposed longitudinal slots adapted for engagement with releasably attachable straps for securing the arm support to a person's forearm. A support member may bend upwardly at a transition point between the forearm section and the elbow section. A forearm pad may be attached to the forearm section. An elbow pad may be attached to the elbow section. The elbow pad may include an upwardly inclined surface. A support member may include a concave upper surface. An arm support may be useful to prevent hyperflexion or hyperextension, such as hyperextension of the elbow joint of a bowler.

A personal impact monitoring system is described herein comprising a monitoring station that receives impact events sent from personal impact monitors using a monitoring station receiver. The impact events which specify impact parameters associated with the impact events are stored in a data storage location associated with the monitoring station. Software operating on the operating station is configured to receive the impact events from the data storage location and to perform calculations based on the impact events to identify notable impact events.

A mouthguard according to an embodiment of the present disclosure includes a pair of spaced lateral bite wings, a conduit defining an air channel extending between forward portions of the lateral bite wings, and a lip shield member and/or a flange disposed around and extending radially outward with respect to a forward end of the conduit. The conduit is tapered inward from its forward end toward its rearward end, and defines an incisor engaging surface proximate the rearward end of the conduit, and a lip engaging surface between the incisor engaging surface and the forward end of the conduit.

Technology facilitates dynamic variability of head impact data recordal, for example, in the context of instrumented mouthguard devices. Some embodiments have been developed to facilitate an event recoding protocol that dynamically adjusts event recoding parameters thereby to provide appropriate data for both “short” and “prolonged” impact events. For example, various embodiments include methods for recording impact events in respect of an instrumented mouthguard device, such methods including dynamically adjusting a period of time for which event data is recorded for a given event responsive to length of time for which an over-threshold condition persists.

A mouth guard senses impact forces and determines if the forces exceed an impact threshold. If so, the mouth guard notifies the user of the risk for injury by haptic feedback, vibratory feedback, and/or audible feedback. The mouth guard system may also remotely communicate the status of risk and the potential injury. The mouth guard uses a local memory device to store impact thresholds based on personal biometric information obtained from the user and compares the sensed forces relative to those threshold values. The mouth guard and its electrical components on the printed circuit board are custom manufactured for the user such that the mouth guard provides a comfortable and reliable fit, while ensuring exceptional performance.

A protective sports helmet that includes a chin strap system that allows for rapid, one-handed adjustment of a chin strap assembly by the player while he/she is wearing the helmet is provided. The chin strap assembly includes a protective chin cup and a pair of straps extending from opposed sides of the chin cup and having a plurality of securing elements. The assembly also includes a pair of adjustable connectors affixed to the helmet and that include a central opening that receives an extent of the strap and a lever that engages a portion of the securing elements. The adjustable connector allows movement of the strap in a first direction, and prevents movement of the strap in a second direction when the lever is engaged with at least one of the securing elements. The adjustable connector allows movement of the strap in both the first and second directions when the lever is not engaged with the securing elements.

Methods of lowering heart rate during physical activity for a user in need of an increase in their smallest concentric airway cross-sectional area include providing the person with a mandibular repositioning device having a maxillary tooth covering having a driver flange protruding laterally outward on a right and left side proximate a backmost teeth mold and a mandibular tooth covering having a protrusive flange extending cranially therefrom positioned to have a posterior side engaged with the anterior side of each driver flange. The anterior side of each driver flange has a convex curvature, and the posterior side of each protrusive flange has a concave-to-convex curvature from its base toward its most cranial point and a convex portion of the concave-to convex curvature engages the convex curvature of the driver flange in a rest position, and downward movement of the mandibular piece moves the user's mandible forward as well.

Systems and methods for sensing and monitoring various athletic performance metrics, e.g., during the course of a game, a practice, a training session, training drills, and the like, are described. These systems and methods can provide useful metrics for players and coaches relating to athletic performances in various sports, including various team sports.