Table 2. Individual un-weighted rms acceleration values.

		Smooth asphalt		Concrete Stone		Rough Road
	Stem Acceleration (m·s-2 rms)	x	z	x	z	x	z
MTB	Subject 1	1.08	1.58	3.71	4.74	6.75	10.10
	Subject 2	1.89	2.22	4.14	5.19	7.60	9.37
	Subject 3	1.75	2.56	4.14	7.04	6.23	10.76
	Subject 4	1.40	1.66	3.60	4.18	7.16	7.86
	Subject 5	1.55	2.37	3.30	5.30	6.00	10.17
	Mean	1.53	2.08	3.78	5.29	6.75	9.65
	SD	.32	.44	.36	1.07	.66	1.12
RB	Subject 6	2.84	3.21	10.69	9.97	16.24	19.12
	Subject 7	3.58	3.85	8.60	9.42	13.15	13.68
	Subject 8	3.69	4.43	9.54	11.12	18.31	27.31
	Subject 9	4.37	4.21	7.61	8.52	13.71	18.12
	Subject 10	3.08	3.38	10.25	11.75	18.06	23.58
	Mean	3.51	3.82	9.34	10.16	15.89	20.36
	SD	.59	.52	1.25	1.30	2.40	5.24