Table 2.

Calf muscle StO₂ data before (pre) and after the short period (post loading) and long period (post maintenance) of supplementation (n = 29).

	PLA (n = 15)	Cr (n = 14)	p-Value Interaction
Baseline StO2 (%)
Pre	68.8 ± 3.7	70.0 ± 4.6	0.082
Post loading	68.2 ± 2.8	70.5 ± 6.1
Post maintenance	71.3 ± 5.7	71.1 ± 4.8
Minimum StO2 (%)
Pre	54.2 ± 10.0	61.6 ± 13.0	0.191
Post loading	52.9 ± 9.3	61.7 ± 14.8
Post maintenance	54.2 ± 7.7	62.8 ± 12.3
Time to minimum StO2 (s)
Pre	52.5 ± 34.3	56.5 ± 46.1	0.833
Post loading	46.8 ± 58.6	44.4 ± 26.2
Post maintenance	50.1 ± 88.3	58.4 ± 43.5
Completion of test (%)
Pre	12.2 ± 8.5	7.2 ± 9.7	0.691
Post loading	12.1 ± 8.2	9.5 ± 7.1
Post maintenance	9.2 ± 10.5	7.6 ± 10.4
Recovery time to maximum StO2 (s)
Pre	158.9 ± 43.1	160.1 ± 175.1	0.723
Post loading	146.4 ± 75.1	177.1 ± 202.9
Post maintenance	160.9 ± 119.1	181.9 ±125.8
Recovery phase time StO2 (s)
Pre	126.7 ± 112.4	132.9 ± 194.2	0.827
Post loading	93.0 ± 77.7	121.1 ± 248.3
Post maintenance	87.1 ± 137.5	130.3 ± 103.7
Full recovery maximum StO2 (%)
Pre	69.5 ± 15.8	72.6 ± 12.4	0.312
Post loading	68.6 ± 9.7	72.3 ± 14.5
Post maintenance	74.5 ± 15.8	73.1 ± 15.8

Data are expressed as the median and interquartile range. PLA—placebo group; Cr—creatine group.