What does Actigraphy show?
After 7 days the therapist will go through the Actigraphy data, presented on a chart which visualises sleep patterns, activity levels and light in the wearer's surroundings. This will indicate whether or not sleep times were consistent or disturbed due to other factors, such as blue light or activity levels.
An example of Actigraphy over 7 days, showing surrounding blue light before bedtime
What do I do when I get my wristband?
You can wear your Actigraphy wristband as soon as you are given it and it will start measuring your activity, temperature and light surroundings straight away. These wristbands are splash-proof and can be worn in the shower, but should not be submerged underwater (i.e. swimming, diving, bathing). If you feel you need to take it off for an activity this is okay, but it is important you wear it as much as possible and especially while you are sleeping. When you go to bed we ask you to hold down the button* until it beeps. When you wake up we ask you to press it again. If you forget to press the button before bed and after waking up, there is no need to worry. All the button does is make a mark on your actigraphy data at the time you press it. If you forget to press it we will still be able to assume what time you went to bed or woke up based on your activity reading and light intake, however, the reason we ask you to press the button is that it is good to know what time you intended to go to bed and wake up so this helps us to more precisely analyse the data.
*Note: the button is not an ON/OFF function. The wristband is always ON until it is returned to neuroCare.
At the same time you are given your wristband at the clinic, we will provide you with a "sleep/wake diary" for you to complete over the 7 days so we can compare the data with other factors the wrist-band cannot identify. It also gives you a chance to write down the time you go to bed and wake up if you have forgotten to press the button.
You are asked to press the 'event marker' at the moment you intend to sleep, and when you wake up