Table 3. Mean phase and dispersion (in degrees) of ventilatory transitions relative to the step cycle.

	Phase relative to step cycle (degrees)
Subject		Inspiration		Expiration
	N	mean	disp	mean	disp
1	57	296*	13.0	121*	6.2
2	72	32*	0.1	352*	0.2
3	48	345*	0.4	285*	0.6
†4	70	286	16.0	282	11.6
5	86	176*	0.9	164*	3.0
6	82	28*	0.5	313*	1.2
7	62	297*	1.1	273*	9.5
8	87	325*	0.8	255*	1.1
9	55	203	99.0	334*	0.9
10	35	296*	0.5	356*	0.5
11	79	153*	6.2	154*	1.8
12	90	282*	1.2	150*	8.2
13	87	308*	0.4	212*	0.4
14	62	324	26.0	17*	13.6

^*Indicates significant difference from uniform circular distribution based on Kuiper’s test.

^†Indicates subject with no statistical evidence of transition entrainment in inspiration or expiration.