Table 2. Mean values (SD) of the thoracic, lumbar spine and pelvic tilt (°) in the four postures measured in elite and master cyclists. Elite Master Mean difference (95% CI) p- value Effect size Standing Thoracic spine 48.2 (8.1) 47.0 (9.2) 1.15° (-1.98 to 4.28) .469 .13 Lumbar spine -27.3 (7.2) -25.3 (6.3) -2.01° (-4.46 to .43) .106 .29 Pelvic tilt 13.7 (5.5) 11.3 (5.2) 2.40° (.46 to 4.33) .016 .44 Upper handlebar Thoracic spine 35.0 (10.8) 39.7 (8.5) -4.61° (-8.12 to -1.11) .010 .46 Lumbar spine 25.3 (7.6) 22.9 (7.5) 2.40° (-.32 to -5.12) .084 .31 Pelvic tilt 24.6 (5.9) 21.7 (6.2) 2.93° (.74 to 5.12) .009 .47 Middle handlebar Thoracic spine 35.3 (10.8) 37.5 (10.5) -2.18° (-6.03 to 1.66) .264 .20 Lumbar spine 26.0 (7.8) 24.2 (7.5) 1.85° (-.91 to 4.61) .188 .31 Pelvic tilt 29.0 (6.3) 26.5 (6.5) 2.45° (0.13 to 4.76) .038 .37 Lower handlebar Thoracic spine 37.18 (9.79) 40.6 (10.0) -3.36° (-6.94 to .21) .065 .33 Lumbar spine 28.5 (7.8) 25.2 (7.3) 3.26° (.53 to 5.99) .200 .42 Pelvic tilt 36.3 (6.3) 33.4 (6.5) 2.95° (0.63 to 5.26) .013 .45