Table 3.

Utility of the Fitbit Zip™ physical activity monitor

Question	Response
Have you ever used a Fitbit to measure physical activity in the past?	Yes 2.4% (n = 1)
	No 97.6% (n = 41)
Was using the Fitbit every day for 7 days an acceptable method to measure your daily activity?	No acceptable (n = 0)
	Neither 21.4% (n = 9)
	Very acceptable 78.6% (n = 33)
How easy was it to remember to use the Fitbit Zip every day?	Difficult to remember 2.4% (n = 1)
	Neither 9.5% (n = 4)
	No problem 88.1% (n = 37)
Did using the Fitbit interfere with your daily routine?	Interfered greatly (n = 0)
	Neither 11.9% (n = 5)
	Did not interfere at all 88.1% (n = 37)
Was the Fitbit annoying to use?	Extremely annoying (n = 0)
	Neither 16.7% (n = 7)
	Not annoying at all 83.3% (n = 35)
Would you wear the Fitbit again as part of a research study?	No 0% (n = 0)
	Maybe 9.5% (n = 4)
	Yes 90.5% (n = 38)