• John P Handrakis, Karen Friel, Frank Hoeffner, Ola Akinkunle, Vito Genova, Edward Isakov, Jerrill Mathew, and Frank Vitulli.
• New York Institute of Technology, School of Health Professions, Department of Physical Therapy, Old Westbury, NY 11568, USA. jhandrak@nyit.edu
• Arch Phys Med Rehabil. 2012 Jul 1;93(7):1217-24.

ObjectiveTo identify which factors commonly associated with low back pain (LBP) and disability differ between college-aged persons with LBP and with no or minimal LBP.DesignClinical measurement, observational study. Subjects were assessed for LBP with the visual analog scale (VAS) and for disability from LBP using the Oswestry Disability Index (ODI). Subjects were measured for variables commonly associated with LBP and were grouped by both VAS (minimum [min]/no pain, pain) and ODI (no disability, disability) scores.SettingCollege campus at a university.ParticipantsA convenience sample (N=84) of English-speaking students (34 men, 50 women) between 18 and 30 years of age.InterventionsNot applicable.Main Outcome MeasuresSports activity (sports activity score of the Baecke Physical Activity Questionnaire), depression, hamstring and hip flexor range of motion, low back extensor endurance, abdominal strength and endurance.ResultsA significant main effect of group was found for both pain (P=.019) and disability groups (P=.006). The min/no pain and pain groups differed in back endurance (114.2±38.8s vs 94.5±44.5s, respectively; P=.04). The no disability and disability groups differed in back endurance (116.3±35.9s vs 97.1±45.7s, respectively; P=.03) and the sports activity score of the Baecke Physical Activity Questionnaire (2.98±.95 vs 2.48±.85, respectively; P=.01). Subjects with hyperkyphotic postures compared with the normative thoracic group had higher depression scores (49 vs 38.5, respectively; P=.03) and less hamstring flexibility (30.5 vs 49.9, respectively; P<.001).ConclusionsBack extensor endurance was consistently different between both the pain and disability groups. Addressing limited low back extensor endurance and low levels of physical activity in young adults may have clinical relevance for the prevention and treatment of LBP and disability.Copyright © 2012 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.

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