Table 3. Mean cross-sectional area (cm²) and peak systolic velocity (cm/s ± standard deviation) of popliteal vein in control and experimental groups at three data collection sessions and effect size comparison.

	Session 1		Session 2		Session 3
	Area	PSV	Area	PSV	Area	PSV
Control group	32.61 ± 12.22	2.80 ± 0.45	32.45 ± 8.11	2.71 ± 0.41	33.76 ± 13.04	2.60 ± 0.28
Experimental group	33.83 ± 9.57	2.54 ± 0.33	33.28 ± 8.85	2.67 ± 0.37	34.30 ± 8.85	2.61 ± 0.33
Cohen’s d	-0.11 (6.30; 4.73)	0.67 (0.44; 0.83)	-0.10 (-4.20; 4.38)	0.10 (-0.10; 0.29)	-0.05 (-6.65; 4.43)	-0.03 (-0.17; 0.13)

PSV: peak systolic velocity.