Effect of Hamstring Stretch Pelvic Control on Pain, Disability and Work Ability Index in Dentist With Mechanical Low Back Pain

Abstract

Background: Dentist sits in a chair and leans forward towards the patient, lumbar curve flattens and the bony infrastructure provides very little support to the spine. Sitting in chair forces the hamstrings to become inactive and places them in a shortened position. Repetitive, prolonged sitting eventually leads to hamstring muscles that adapt to a new shortened length, and the result is Hamstring tightness which induces posterior pelvic tilt and decreased lumbar lordosis, which can result in low back pain.Objective: We investigated effects of hamstring stretch with pelvic control on pain, disability and work ability in Dentist with mechanical low back pain.Methods: Thirty Dentist from Dental professional were randomly assigned to pelvic control hamstring stretching (Group A) (n = 15) and Supine hamstring stretching (Group B) (n = 15). All interventions were conducted 3 days per week for 6 weeks, and included in the hamstring stretching and lumbopelvic muscle strengthening.Outcomes: Outcomes were evaluated through Numeric pain rating scale (NPRS) for Pain, Oswestry disability index (ODI) for Disability, and Work ability index (WAI) for Work ability.Results: The paired t-test was used to compare within group differences and unpaired t-test was used to compare the between group differences. All statistical analyses were performed using SPSS statistical software version 21.Significant differences found between Group A and group B in all three variables.(p<0.05).between pre and posttest of subjects. According to the results of the present research, it could be concluded that for reducing pain, disability and improving work ability in dentists pelvic control hamstring stretch and lumbopelvic strengthening exercises are recommended. Conclusions:The pelvic control hamstring stretch exercise would be more helpful in back pain reduction and improvement of work ability in Dentist with mechanical low back pain.

Effects of hamstring stretching using pressure bio feedback unit in patients with low back pain

“…The current findings were supported by a study on dentists who had mechanical low back pain. In this study hamstring stretching was performed in the anterior pelvic tilted and significant improvement was observed in pain and disability scores [8].…”

“…The effect size (Cohen's d=0.92) obtained from a prior study was used to calculate the sample size of n=38. During the calculation, the power (1-β) was 85% and the alpha level was kept at 0.05 to achieve the sample size [8].…”

“…al. on the effect of hamstring stretches while maintaining pelvic control on low back pain, find that hamstring stretching exercises while maintaining pelvic control are more useful in alleviating lower back discomfort [7,8]. Patients with back pain can benefit from proprioceptive neuromuscular facilitation (PNF), ballistic, static, and other stretching treatments to increase the flexibility of their hamstrings.…”