Physical Activity Types

Detectable Physical Activity

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Detectable Activities

Activity Types that can be detected by the IDEEA

(* more work needs to be done for identifying biking and one-leg jumping)

Accuracy in Activity Type Detection (76 subjects)

(Detailed info on accuracy validation can be found from Obesity Research Journal, Vol. 11, No. 1, pp 33-40, Jan. 2003)

Primary	Secondary	Accuracy	Primary	Secondary	Accuracy
*Sitting*	Upright (normal)	99.40%	Leaning	Left shoulder against wall	98.71%
	Left leg over right leg	99.11%		Right shoulder against wall	100.00%
	Right leg over left leg	98.55%		Two elbows on a counter	99.28%
	Elbows on knees	99.28%		Average	99.33%
	Left heel up	99.28%
	Right heel up	100.00%	Lying Down	Facing up	100.00%
	Both heels up	99.28%		On right shoulder	99.12%
	Both feet elevated	98.55%		Facing down	99.28%
	Average	99.18%		On left shoulder	99.28%
				Average	99.23%
*Standing*	Upright (normal)	99.03%
	Left foot on a step	100.00%	Limb movement	Sit move left leg	99.60%
	Right foot on a step	99.57%		Sit move right leg	100.00%
	Average	99.53%		Sit move both legs	99.26%
				Stand move left leg	98.16%
*Reclining*	Both feet on the ground	95.63%		Stand move right leg	99.90%
	Left leg over right leg	99.23%		Average	99.14%
	Right leg over left leg	96.84%
	Average	97.23%

Accuracy in Gait Identification (69 subjects)