Abstract: A vibrational muscle massaging system includes a tubular member that is elongated and has a first end, a second end, and a perimeter surface extending between the first and second ends. The tubular member comprises a substantially solid member. The tubular member comprises a foamed elastomer and is resiliently compressible. The tubular member has a cylindrical shape and has a length greater than a diameter. The first end has a well extending therein. The well has a width that is greater than the height. The well is configured to receive a cellular phone to frictionally engage the cellular phone such that cellular phone extends outwardly away from first end. The tubular member vibrates when the cellular phone vibrates.

Abstract: A data logger for a monitoring sports which includes an accelerometer, a gyro sensor to sense angular displacement, a GPS unit to sense position and velocity, a magnetometer to sense direction of movement, a heart rate monitor, and a controller programmed to manipulate the data and provide a display of the heart rate, speed, and other sport parameters. The data can be stored or transmitted to a remote computer for use by the coach. The device is useful in football codes, athletics, swimming, snow sports and cycling.

Abstract: A data logger for a monitoring sports which includes an accelerometer, a gyro sensor to sense angular displacement, a GPS unit to sense position and velocity, a magnetometer to sense direction of movement, a heart rate monitor, and a controller programmed to manipulate the data and provide a display of the heart rate, speed, and other sport parameters. The data can be stored or transmitted to a remote computer for use by the coach. The device is useful in football codes, athletics, swimming, snow sports and cycling.