Table 4.

Confusion matrix for movement states recognition.

	Walking	Running	Upstairs	Downstairs
Walking	97.5%	1.6%	0.6%	0.3%
Running	2.3%	94.5%	0.5%	2.7%
Upstairs	1.3%	0.8%	95.0%	2.9%
Downstairs	0.6%	2.0%	3.3%	94.1%