{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,6]],"date-time":"2025-05-06T10:28:07Z","timestamp":1746527287582},"reference-count":58,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2011,5,11]],"date-time":"2011-05-11T00:00:00Z","timestamp":1305072000000},"content-version":"vor","delay-in-days":10,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["PM&amp;R"],"published-print":{"date-parts":[[2011,5]]},"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>To investigate the effect of aquatic vertical traction on spinal height, pain intensity, and centralization response compared with a land\u2010based supine flexion position for patients with low back pain and signs of nerve root compression.<\/jats:p><\/jats:sec><jats:sec><jats:title>Design<\/jats:title><jats:p>Single\u2010blind, repeated\u2010measures crossover design.<\/jats:p><\/jats:sec><jats:sec><jats:title>Setting<\/jats:title><jats:p>Outpatient physical therapy clinic.<\/jats:p><\/jats:sec><jats:sec><jats:title>Subjects<\/jats:title><jats:p>Ninety\u2010eight subjects were recruited using consecutive sampling, with 28 men and 32 women of a mean \u00b1 standard deviation (SD) age of 59.6 \u00b1 11.6 years completing testing.<\/jats:p><\/jats:sec><jats:sec><jats:title>Intervention<\/jats:title><jats:p>Each subject participated in 2 sessions that consisted of loaded walking for 15 minutes, followed by either 15 minutes of land\u2010based supine position or 15 minutes of aquatic vertical traction.<\/jats:p><\/jats:sec><jats:sec><jats:title>Measurements<\/jats:title><jats:p>Spinal height change, measured using a commercial stadiometer, was determined after completing loaded walking and after each intervention.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The mean \u00b1 SD height change of 4.99 \u00b1 2.88 mm after aquatic vertical traction was similar to that of 4.21 \u00b1 2.53 mm after the land\u2010based supine flexion (<jats:italic>P<\/jats:italic> = .0969). Paired <jats:italic>t<\/jats:italic>\u2010test indicated that both interventions resulted in significant increased height (<jats:italic>P<\/jats:italic> &lt; .0001). Decreases in pain after aquatic intervention (2.7 \u00b1 2.1 cm) were significantly greater than decreases after land intervention (1.7 \u00b1 1.7 cm; <jats:italic>P<\/jats:italic> = .0034), and centralization of symptoms was more pronounced after aquatic vertical suspension compared with the supine land\u2010based flexion condition (<jats:italic>P<\/jats:italic> &lt; .0001). A significant correlation between height change and both pain reduction (<jats:italic>r<\/jats:italic> = 0.39; <jats:italic>P<\/jats:italic> = .001) and centralization (<jats:italic>r<\/jats:italic> = 0.29; <jats:italic>P<\/jats:italic> = .013) was observed for the aquatic intervention only.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Although both the aquatic and land interventions produced significant increases in overall spinal height, the aquatic intervention produced greater pain relief and centralization response in subjects with low back pain and signs of nerve root compression.<\/jats:p><\/jats:sec>","DOI":"10.1016\/j.pmrj.2011.01.010","type":"journal-article","created":{"date-parts":[[2011,5,20]],"date-time":"2011-05-20T23:56:31Z","timestamp":1305935791000},"page":"447-457","update-policy":"http:\/\/dx.doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["Immediate Changes in Spinal Height and Pain After 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