Table 4 Blood lactate (LA) and systolic blood pressure (SBP) values at 30 min and 75 min of skiing.

Subject	LA at 30 min (mmol.l-1)	LA at 75 min (mmol.l-1)	SBP at 30 min (mm Hg)	SBP at 75 min (mm Hg)
1	1.47	1.06	179	176
2	2.13	2.03	180	173
3	1.15	1.01	180	173
4	2.65	2.42	155	140
5	3.04	2.98	193	179
6	2.72	2.65	138	146
Mean (±SD)	2.2 (.8)	2.0 (.8)	167.3 (21.8)	161.3 (17.6)