A golf club having a sensor that is removably connected at one or more positions of the golf club where the sensor comprises an inertial measurement unit including an accelerometer capable of measuring linear accelerations in three orthogonal axes and a gyroscope capable of measuring an angular rate of rotation around the same axes. The sensor may further comprise a processor which may perform instructions to detect the impact of the golf club with a golf ball and determine the start of the golf swing without any additional input from the user. The sensor may further have a power management system to extend the life of the power source.

In one aspect, an active exercise chair comprising seat support, wherein the seat support is rigidly affixed to a top section of a shaft of the gas spring; a seat, wherein the seat is connected to the seat support; a seatback support, wherein the seatback support is pivotably connected to the seat support about a discrete pivot point; a seatback carriage, wherein the seatback carriage is slidably connected to the seatback support, wherein the seatback carriage is connected to a seatback, and wherein the seatback traverses a translational path defined by the geometry of the seatback carriage and the seatback support.

A motion measurement apparatus includes an inertial sensor and a host terminal. The inertial sensor measures a motion. The host terminal includes an input section and a control section. The input section is used to input an item identifier allocated to each motion of a user. The control section generates a control signal for controlling a sampling rate of the inertial sensor according to the item identifier which is input via the input section, and outputs the control signal to the inertial sensor.

Provided is a weight pattern determination apparatus for determining, in a golf club having a head capable of mounting one or more weights in a plurality of mounting patterns, the mounting pattern suited to a golfer. The apparatus has an impact point specification unit and a pattern determination unit. The impact point specification unit specifies an impact point distribution of the golfer. The pattern determination unit determines a recommended pattern which is the mounting pattern that approximates a sweet area of the golf club to the impact point distribution. According to the first aspect of the present invention, the impact point distribution of the golfer is specified, and a mounting pattern is determined based on this impact point distribution.

An exercise device comprises a flywheel, a driving assembly, and a control assembly. The driving assembly drives the flywheel to rotate. The control assembly comprises an angle sensor for measuring the change of angular displacement of the flywheel during a specific period of time. The control assembly calculates the angular velocity or the angular acceleration of the flywheel by the measured angular displacement during the specific period of time. The control assembly determines if the flywheel is to be stopped according to at least a criterion.

A device is used for carrying out movements by shifting the center of gravity and/or actuating muscles of a human body. A user lies on the device and shifts the center of gravity by moving his or her hip region in order to incline a movable part of the device including the user's own body in different directions. Furthermore, the user wears video goggles or the like during the process and can move in a virtual environment using the overall system, which includes the video goggles and the movement device and can interact with these. The movements caused by the user can be generated solely using gravity by shifting the center of gravity. Additionally, the movements of the device are influenced by motors or dampers arranged in or on the device.

A walking assistance apparatus includes stimulus applying means for applying a stimulus to a leg part on which a walking assistance apparatus is mounted and state detection means for detecting a supporting leg condition and a lifted leg condition of the leg part on which the walking assistance apparatus is mounted. The stimulus applying means applies a first stimulus to the leg part when the state detection means has detected that the leg part on which the walking assistance apparatus is mounted is in the lifted leg condition, and the stimulus applying means does not apply a stimulus to the leg part or applies a second stimulus that is weaker than the first stimulus when the state detection means has detected that the leg part on which the walking assistance apparatus is mounted is in the supporting leg condition.

A motion sensor package with an elastomer layer that encases the sensor electronics, including the sensors, a processor, an antenna, and a battery. The elastomer layer may provide shock isolation and water resistance to protect the enclosed electronics. Embodiments may also include an outer housing into which the elastomer encased package is installed. The outer housing may for example comprise two cylindrical sections that screw together to close the outer housing. In one or more embodiments part of the outer housing may be integrated into an item of sports equipment. Embodiments for golf may also include a golf club grip adapter that is inserted into the top of a grip, and which attaches to the outer housing containing the elastomer enclosed sensor package.

An electronic device includes a display, a memory configured to store priorities of sensors included in at least one of the electronic device and an external electronic device connected to the electronic device through a communication circuit, the priorities being set based on a type of exercise, a processor electrically connected to the display and the memory, and a connection interface configured to electrically connect the processor with the sensors. The processor is configured to select at least one first sensor of the sensors, based on the stored priorities of the sensors when the type of the exercise is designated, to designate the first sensor as an exercise measuring sensor that measures the exercise, to obtain first sensing data, based on the exercise, through the exercise measuring sensor, to analyze the first sensing data, and to provide exercise information based on the analyzed result of the first sensing data.

A training apparatus includes a display that displays a video image including an image of a moving object, a rotation speed acquirer that acquires a rotation speed of a pedal driven by a user, and a control circuit that changes a moving speed of the object in the video image. The control circuit controls the moving speed as follows. The moving speed of the object in the video image is increased at an acceleration α1 (>0). If an increase in the pedal rotation speed occurs after the moving speed of the object is increased, the moving speed of the object is increased at an acceleration α2 (<α1). In a case where an increase in the rotation speed of the pedal occurs after the moving speed of the object is increased at the acceleration α2, the moving speed of the object is further continuously increased at the acceleration α2.