. 2017 Jan 3;5:e2818. doi: 10.7717/peerj.2818

Table 2. Comparison of grid walking test parameters before and after the mild traumatic brain injury with sham injury.

	Total foot step (number/min)	Foot fault step (number/min)	Foot fault ratio	Latency (s)
MTBI
Before MTBI	40.12 ± 10.96	2.21 ± 1.61	0.07 ± 0.09	0.94 ± 1.41
After MTBI	17.50 ± 14.50	0.59 ± 0.74	0.04 ± 0.06	5.26 ± 11.39
p-value	<0.001	<0.001	0.01	0.02
Sham injury
Before sham injury	35.50 ± 16.03	1.00 ± 1.07	0.02 ± 0.03	1.00 ± 1.60
After sham injury	31.88 ± 14.38	0.38 ± 0.74	0.02 ± 0.02	0.75 ± 1.75
p-value	0.31	0.13	0.59	0.72

Notes.

Values are mean ± standard deviation.