Efficiency of high velocity low amplitude (HVLA) lumbosacral manipulation on running time and jumping distance: Comparison with sham manipulation in amateur soccer players

The aim of this study was to investigate the effects of chiropractic high velocity low amplitude (HVLA) sacroiliac and lumbosacral manipulation on the sprint, jump racing and jumping performance of amateur soccer players with asymptomatic dysfunction of the sacroiliac and lumbosacral joints. The 20‑m sprint, 20‑m jump racing and horizontal jumping distance of the soccer players analyzed in this study were measured before and after the applications. Sprint and obstacle course racing time were measured by stopwatch and video recordings. In total, 30 patients were included in the study. The participants were divided into 2 groups each with 15 members and were randomly selected. A sham manipulation was applied to the control group and chiropractic HVLA lumbosacral and sacroiliac manipulation was applied to the experimental group. The 20‑m sprint time of the control group decreased from 3.49 s to 3.46 s. In the experimental group the 20‑m sprint time decreased from 3.44 s to 3.22 s. The sprint values of the experimental group were statistically significantly faster than the control group (p   0.05). In the control group the horizontal jump distance increased from 266.93 cm to 268.80 cm. This score increased from 261.13 cm to 267.80 cm in the experimental group. Comparison of the horizontal jumping distance revealed that the experimental group had a statistically significant better performance than the control group (p < 0.05).