Table 2. Descriptive statistics and effect analyses for the pre- and post-test values of Near-Infrared Spectroscopy (NIRS), Tensiomyography (TMG), and Myotonometry (MMT) for both dose conditions (2x1 min, 2x3 min) of foam rolling for the right (EXP) and for the left (CON) anterior thigh. dose 2x1 min dose 2x3 min main effects interaction pre post pre post dose time dose x time M (SD) M (SD) M (SD) M (SD) F[1, 19] (p) η²part F[1, 19] (p) η²part F[1, 19] (p) η²part NIRS R/IR ratio (AU) EXP (right) 118.4 (17.5) 121.0# (16.1) 117.9 (29.0) 128.0# (26.0) 0.646 (0.432) 0.033 7.589 (0.013)* 0.285 7.098 (0.015)* 0.272 CON (left) 115.5 (13.8) 113.6 (14.2) 115.9 (28.5) 118.5 (27.5) 0.273 (0.608) 0.014 0.048 (0.829) 0.003 3.192 (0.090) 0.144 TMG Dm (mm) EXP (right) 8.9# (2.8) 8.8# (3.3) 8.8# (2.8) 9.0 (2.4) 0.002 (0.965) <0.001 0.063 (0.805) 0.003 0.879 (0.360) 0.044 CON (left) 7.3 (3.0) 7.8 (3.0) 7.8 (2.9) 8.3 (2.9) 2.505 (0.130) 0.116 2.558 (0.126) 0.119 0.003 (0.954) <0.001 MMT S (N/m) EXP (right) 242.6 (32.3) 238.6 (31.6) 231.2 (35.4) 226.8 (35.5) 7.165 (0.015)* 0.274 12.074 (0.003)* 0.389 0.018 (0.895) 0.001 CON (left) 247.8 (38.7) 243.7 (36.7) 236.3 (38.0) 235.9 (38.2) 5.266 (0.033)* 0.217 1.763 (0.200) 0.085 0.956 (0.341) 0.048 * statistically significant ANOVA effect; # statistically significant difference between EXP and CON limb at any single time point of measurement (t-test); M=mean; SD= standard deviation; R/IR ratio=red/infrared ratio mean value of the interval between the 60th and the 120th second; Dm muscle belly displacement; S tissue stiffness