Table 2.

Comparison of the exercise intensity levels among the various groups (mean ± SD)

Fitness level	Exercise form (n)	WBC increase (× 109/L)	Change in heart rate right after 5 min cycling	APTT (after-before)(s)	D-dimer (after-before) (mg/L)
2	Running (78)	2.97 ± 0.24
2	Cycling (130)	2.44 ± 0.20	59.82 ± 2.35	-2.11 ± 0.22	0.459 ± 0.22
3	Running (118)	4.93 ± 0.41
3	Cycling (125)	3.54 ± 0.17	78.67 ± 2.34	-2.16 ± 0.19	0.631 ± 0.16
4	Running (31)	4.84 ± 0.27
4	Cycling (25)	3.80 ± 0.41	86.80 ± 5.30	-2.05 ± 0.31	0.959 ± 0.67

Individuals were divided into groups according to physical activities ranging from 1 (no activity) to 4 (high intense activity). The numbers of increased WBCs after 1 h run and 3 h rest (Running group), and after 5 min intense cycling (Cycling group) are shown. Shown are changes in the heart rates among the various groups. Also shown are the differences in activated partial thromboplastin time (APTT) and D-dimer measurements. WBCs: White blood cells.