How big are the devices and how do I wear them?
The hip/waist monitor (accelerometer).
The hip monitor is roughly the size of a match box and is worn on an elastic band on or above the right hip. The black button should be to the top, and the monitor should fit flat to the body. The device must remain upright to record correctly. The monitor can be worn above or underneath clothes.
The hip monitor should be put on upon waking each morning, and taken off overnight. It is not waterproof, and should be taken off when showering, bathing or swimming. If the monitor is removed during the day, the times should be recorded in the diary.
The thigh monitor (inclinometer).
The thigh monitor is roughly the size of a domino and attaches to centre front of the right thigh using an adhesive patch. The monitor is in a protective plastic covering (which should not be removed), and is marked with a red dot which should be to the top of the device when attached. The thigh monitor should ideally stay on for the whole 7 day study period, including overnight. The thigh monitor is waterproof and able to stay on during showers, however it must be removed prior to complete immersion in water, e.g. bathing or swimming. If the thigh monitor is taken off, the times should be recorded in the diary.