Table 3.

Rate of change of [PCr] (d[PCr]/dt) at the onset of the fundamental phase and the same absolute [PCr] (β[PCr])

	d[PCr]/dt (%Δ min−1)
Subject no.	Bout 1	Bout 1 at β[PCr]	Bout 2 at β[PCr]
1	48.94	44.36	40.20
2	36.92	39.03	44.20
3	39.58	34.69	38.29
4	28.68	25.04	25.40
5	35.42	31.02	36.02
6	22.70	22.94	14.78
7	42.82	38.88	45.24
Mean	36.44 *	33.71	34.88
s.d.	8.73	7.83	11.03

^*[PCr] response for bout 1 is significantly different from β[PCr] for bouts 1 and 2. See Methods for definitions.