A biometric sensor includes a body surface sensor and an e-field signal transmitter. The body surface sensor create a drive-sense signal at a first frequency based on one or more sensing parameters. When operably coupled to a body via one or more electrodes, the body surface sensor provides the drive-sense signal to the body and detects an effect on the drive-sense signal based on electrical characteristics of the body. The body surface sensor generate a data signal based on the detected effect, wherein the data signal represents the body’s electrical characteristics. The e-field signal transmitter generates an outbound signal reference at a second frequency based on the data signal and one or more transmit parameters. The e-field transmitter drives the outbound reference signal to the body, wherein the outbound reference signal is transmitted within at least a portion of the body as an outbound e-field signal at the second frequency.

A cycling shoe system is basically includes an upper, a sole, a closure, an actuator, a communicator and a controller. The upper has a first portion, a second portion, and an opening between the first portion and the second portion. The sole is attached to the upper. The closure is coupled between the first portion and the second portion. The actuator is operatively coupled to the closure to adjust a relative position of the first portion and the second portion. The communicator is configured to receive at least one of bicycle information and user information. The controller is configured to control the actuator to adjust a tightening force applied by the closure to a target tightening force based on at least one of the bicycle information and the user information.

A grippable haptic device includes an input device that receives a user input, a 9-axis sensor that detects movement of a hand of the user, a vibrator that provides a tactile sensation to the user, and a motion sensor that detects whether the user grips the grippable haptic device. An insole-type haptic device includes an input device that receives a user input, a plurality of 9-axis sensors that detect movement of a foot of the user, a vibrator that provides a tactile sensation to a sole of the foot of the user, and a plurality of pressure sensors that are distributed across the insole-type haptic device and measure a pressure exerted at each position of the sole of the user.

An athlete wearing footwear measures jump heights with a motion sensor mounted on the footwear over toes of the athlete. By sensing vertical jump start motions the sensor detects jump start and finish times of −4 g start and −4 g landing. The sensor, a body wearable mems sensor developed by JAWKU, L.L.C., has a previously installed generic factory scale calibration factor. The athlete replaces this calibration factor with a new calibration scale factor selecting an “absolute” external reference device which measures jump height. This device measures several jump heights then inputted to an algorithm app in the sensor to calculate the new calibration scale factor customized to the actual athlete. The motion sensor has built in programming apps to periodically receive an upgraded factory scale calibration factor which upgrade is based on an ever increasing data pool of jump heights. The updated factory calibration factor is then again replaced by the athlete personally taking several new measured jumps which jump heights are in turn inputted to the sensor. The progress made in evolving jumping skills based on training and specific conditioning exercises can thus be motion sensor evaluated.

Disclosed are a ground reaction force index estimation system, a ground reaction force index estimation method, and a ground reaction force index estimation program that can compute ground reaction force indices at low computation costs. The ground reaction force index estimation system comprises footwear and an external device connected to the footwear. The footwear comprises a wearable sensor that measures triaxial acceleration and/or triaxial angular velocity and a computation unit that computes ground reaction force indices by multiple regression analysis from values computed from the measurement results to be used as explanatory variables. The external device comprises a controller that evaluates walking and running motions for the user on the basis of the measurement results by the wearable sensor received from the footwear, the computed ground reaction force indices, and the determination reference information and a presentation unit that presents the results of the evaluation of the running motion.

Disclosed aspects pertain to surface analysis based on wearable sensor data. Sensor data can be acquired from pressure-sensitive wearable sensors, such as shoe insole sensors, based on interaction with a surface. A location can also be determined for the sensor data with respect to a surface utilizing a positioning system. The sensor data can be utilized to determine surface properties at a particular location. Further, a graphical representation of the surface properties and location can be generated and conveyed for display on a display. Furthermore, movement instructions can be provided to aid in analysis of an entire surface, and recommendations can be made regarding surface maintenance based on collected sensor data.

Aspects of the present disclosure describe systems, methods, and structures that scavenge mechanical energy to provide electrical energy to a wearable, where the mechanical energy is scavenged by a bending-strain-based transducer that includes a non-resonant energy harvester. By employing a non-resonant energy harvester that operates in bending mode, more electrical energy can be generated that possible with prior-art energy harvesters. In some embodiments, the output of a bending-strain-based transducer element is used for both energy scavenging and as a sensor signal indicative of a user parameter, such as a step, respiration rate, heart rate, weight and the like. In some embodiments, a transducer element includes a plurality of piezoelectric layers that are electrically connected in parallel to increase the energy and/or power provided by the transducer element.

An article of footwear includes a motorized tensioning system, sensors, and a gesture control system. Based on information received from one or more sensors the gesture control system may detect a prompting gesture and enters an armed mode for receiving further instructions. In the armed mode the system may detect a variety of different control gestures that correspond to different tensioning commands.

Soles for articles of footwear including a mechanically anisotropic three-dimensional mesh. The mechanically anisotropic three-dimensional mesh can include one or more mechanically anisotropic regions with a first lattice shear modulus measured in a first direction and a second lattice shear modulus measured in a second direction opposite to or orthogonal to the first direction. The first and second lattice shear moduli are different to provide the three-dimensional mesh with mechanically anisotropic properties. The mechanically anisotropic three-dimensional mesh can be three-dimensionally printed.

Systems and methods for sports analytics are disclosed. A system for evaluating athletic performance can include wearable sensor devices configured to be removably coupled to an athlete's body during athletic performance, and one or more equipment-mountable sensor devices configured to be coupled to reference objects adjacent to an athletic performance site such as a goal or equipment. A computing device can be communicatively coupled to the wearable sensor device(s) and the equipment-mountable sensor device(s). The computing device is configured to receive sensor data from each of the sensor device(s) and to determine at least one performance parameter.