Effects of a Single Global Stretching Session on Plantar Pressure and Lumbar Mobility Measured in Sedentary Young Adults. A Randomised Controlled Trial

Objectives: To assess the short-term impact of a single global stretching session on plantar pressures and lumbar range of motion (RoM) over one week in sedentary university students.Design: A randomised controlled trial with two parallel groups.Participants: Sixty-four university students were randomly assigned to a stretching group or control group.The stretching group received a single session of global stretching and the control group remained seated for the same length of time as the stretching session.Main Outcome Measures: Lumbar RoM and plantar pressures were assessed before, immediately after, 48 hours after, and 7 days after intervention.Results: Group-by-time interaction was significant for lumbar lateral flexion (p = 0.044), right maximal pressure (p = 0.003), left maximal pressure (p = 0.008), right mean pressure (p = 0.025), left mean pressure (p = 0.002), and maximal pressure minus mean pressure in right foot (p = 0.007).The model with plantar pressures showed a significant difference for group-by-time interaction (p = 0.010). Conclusion:Global stretching seems to counteract the ill-effects of prolonged sitting up to seven days with respect to plantar pressure in standing without significantly improving lumbar ROM.