An active suspension orthotic support system is disclosed. The suspension orthotic support system comprises at least one variable resistance beam extending from a heel section to a mid-arch section of the footwear, wherein rotation of the variable resistance beam from a first position to a second position causes a resistance provided by the variable resistance beam to vary between a minimum resistance to a maximum resistance.

The invention relates to a bridge for a ball game racket as well as to a frame for a ball game racket comprising a bridge.

The invention relates to a bridge for a ball game racket as well as to a frame for a ball game racket comprising a bridge.

An object is to provide a badminton racket capable of easily achieving different performance properties on both sides of the hitting surface easily. A racket includes a frame which extends annularly, a grip, and a string which is stretched across the frame to form a hitting surface on both sides of the frame. The frame is formed to make the front surface portion and the back surface portion thereof asymmetrical in shape in a cross sectional view taken along a plane orthogonal to the extension direction of the frame. The formation of the frame into such an asymmetrical shape makes it possible to change performance properties on shuttlecock hitting between the front and back sides of the hitting surface at the time of hitting the shuttlecock, thus making it possible for the player to obtain two difference capabilities with the single racket simply by changing his or her grip.

An object is to provide a badminton racket capable of easily achieving different performance properties on both sides of the hitting surface easily. A racket includes a frame which extends annularly, a grip, and a string which is stretched across the frame to form a hitting surface on both sides of the frame. The frame is formed to make the front surface portion and the back surface portion thereof asymmetrical in shape in a cross sectional view taken along a plane orthogonal to the extension direction of the frame. The formation of the frame into such an asymmetrical shape makes it possible to change performance properties on shuttlecock hitting between the front and back sides of the hitting surface at the time of hitting the shuttlecock, thus making it possible for the player to obtain two difference capabilities with the single racket simply by changing his or her grip.

An object is to make it possible for a single racket to present different design appearances easily. A racket includes a frame which extends annularly, a grip, and a string which is stretched across the frame to form a hitting surface on both sides of the frame. The frame and the shaft is provided with a first colored portion and a second colored portion. As the racket is viewed from a certain angle in a direction nonparallel and non-orthogonal to the hitting surface, the first colored portion appears visible while the second colored portion is hidden from view, and flipping the hitting surface from this state causes the second colored portion to appear visible and causes the first colored portion to be hidden from view.

An object is to make it possible for a single racket to present different design appearances easily. A racket includes a frame which extends annularly, a grip, and a string which is stretched across the frame to form a hitting surface on both sides of the frame. The frame and the shaft is provided with a first colored portion and a second colored portion. As the racket is viewed from a certain angle in a direction nonparallel and non-orthogonal to the hitting surface, the first colored portion appears visible while the second colored portion is hidden from view, and flipping the hitting surface from this state causes the second colored portion to appear visible and causes the first colored portion to be hidden from view.

A racket frame includes a face portion. The face portion includes an inner circumferential surface, an outer circumferential surface, a first end portion (tip end portion), a second end portion (rear end portion), and a side end portion. The face portion is provided with a plurality of through holes in a circumferential direction of the face portion. Each of the plurality of through holes penetrates the inner circumferential surface and the outer circumferential surface of the face portion. The plurality of through holes include a first hole and a second hole adjacent to each other. The first hole and the second hole are arranged in at least one of the first end portion (tip end portion), the second end portion (rear end portion), and the side end portion, and are inclined such that a distance therebetween becomes shorter from the outer circumferential surface toward the inner circumferential surface.

Devices systems and methods are disclosed. Among other things, the devices systems and methods can facilitate ergonomic gripping of a handle; conform to the shape of a wrist; enhance golf techniques or performance; enhance racket sport technique or performance; protect a head of a user engaged in contact sports or other hazardous activities; identify concussions, in some cases in substantially real time; provide sterilization of garments; control surgical robots; allow for medical treatment of multiple subjects without disrobing; provide biometric or other data; and/or be used to train muscles or body parts for, for example, performing specified tasks using a body part.

An apparatus including a sensor carried by a racquet and an indicator in communication with the sensor. The sensor outputs a notification based on (a) the number of hits by the racquet based on signals from the sensor and (b) at least one of an elapsed time since a last stringing of the racquet and an input skill level of a person using the racquet. Additionally, an apparatus including a racquet, a sensor carried by the racquet, and an indicator in communication with the sensor. The sensor can be a strain gauge, a load cell, an acoustic sensor and a vibro-acoustic sensor. The sensor outputs a notification based on the number of hits by the racquet based on signals from the sensor.