Table 2.

Individual best-fit parameter estimates for monoexponential fit to V̇o_2p RI response and time constant and gain vs. work rate relationships from V̇o_2p kinetic responses to step-incremental exercise

			Variable
			Phase II					Full response
	Constant		τ(WR)			GP(WR)		MRT(WR)			Gtot(WR)
Subject	τ′	Gramp	A	B	C	m	b	A	B	C	m	b
1	44	9.3	0.004	−0.49	35	0.021	8.4	0.004	−0.35	40	0.025	8.0
2	72	10.6	0.003	−0.33	33	0.027	7.7	0.005	−0.35	40	0.038	7.6
3	38	9.6	0.002	−0.11	22	0.015	8.7	0.003	−0.27	33	0.024	8.3
4	31	9.3	0.002	−0.04	26	0.019	8.5	0.005	−0.43	42	0.039	7.2
5	25	9.1	0.001	0.08	14	0.010	9.3	0.003	−0.08	26	0.017	9.0
6	51	9.9	0.000	0.25	21	0.012	8.8	0.002	0.15	30	0.040	7.3
7	77	10.7	0.002	−0.04	27	0.029	7.3	0.007	−0.68	56	0.053	6.1
8	60	10.0	0.001	0.00	16	0.017	8.2	0.003	−0.19	32	0.023	8.1
9	29	9.0	0.001	0.09	13	0.013	8.1	0.002	0.04	23	0.018	8.0
Mean	47	9.7	0.00	−0.06	23	0.02	8.3	0.00	−0.24	36	0.03	7.7
SD	19	0.63	0.00	0.22	8	0.01	0.6	0.00	0.25	10	0.01	0.8

Values are individual best-fit parameter estimates for the monoexponential fit to the V̇o_2p ramp-incremental (RI) response (Constant) and the time constant and gain vs. work rate (WR) relationships from V̇o_2p kinetic responses to step-incremental exercise. “Phase II” relationships (phase II τ and G_P vs. WR) were used to determine variable model 2, and “full response” relationships (MRT and G_tot vs. WR) were used to determine variable model 3. Both τ and MRT vs. WR were described by a second-order polynomial, and G_P and G_tot vs. WR were described by a first-order polynomial. See text for details.