The Effects of Balanced Seating Pressure on Pelvic Asymmetry: A Pilot Study
Trial Parameters
Brief Summary
The goal of this clinical trial is to learn if the DaSuit® cushion helps reduce discomfort caused by sitting in adults with non-specific low back pain. It will also assess the safety and physical effects of using the DaSuit® cushion. The main questions it aims to answer are: 1. Does the DaSuit® cushion distribute the pressure evenly on both under-buttock pressure compared to a placebo cushion? 2. Does the DaSuit® cushion improve spinal alignment compared to a placebo cushion? 3. What discomfort or adverse events do participants experience when using the DaSuit® cushion? Researchers will compare the DaSuit® cushion to a placebo cushion (a look-alike cushion without therapeutic effect) to see if the DaSuit® cushion works to relieve sitting-induced discomfort. Participants will: 1. Use the DaSuit® cushion or a placebo cushion in a randomized order, with each sitting session lasting 10 minutes 2. Complete both conditions with a 10-minute washout period between sessions 3. Sit on a standardized wooden chair with a pressure sensor mat placed on the cushion surface 4. Keep a fixed posture with hips, knees, and ankles at approximately 90 degrees 5. Watch a 10-minute video on a tablet positioned 30-40 cm in front of them at a 5-10 degree downward angle to maintain a steady gaze 6. Undergo spinal imaging immediately after each session, maintaining the same seated posture 7. Report any discomfort or pain experienced during or after each session
Eligibility Criteria
Inclusion Criteria: 1. adults aged 20 to 50 years 2. adults had low back pain non-specific but exacerbated by sitting with VAS score between 3-7 3. body height between 150-180 cm 4. BMI between 18.5-24 5. a radiographically verified hemi-pelvic height discrepancy of ≥ 0.3 cm in sitting posture 6. willing to participate and cooperate throughout the whole intervention session Exclusion Criteria: 1. inability to sit for 20 minutes 2. MMSE \< 24 3. significant spinal/pelvic disorders (e.g., fractures, surgeries, herniated discs with nerve compression) 4. scoliosis with Cobb angle ≥ 20° 5. recent use of pain killers and/or muscle relaxants 6. pregnancy 7. skin conditions affecting sitting tolerance.