Figure 3. Soreness of dominant leg m. quadriceps (a) and plasma CK activity (b) immediately before (Pre) and at 24 h each of nine training sessions as well as 3, 10 and 17 days after cessation of training (group mean ± SD). * P < 0.05 compared to before the first training session; # P < 0.05 compared to value at 24 h after the first training session.