Validity and Reliability of Two Reachable Workspace Volume Protocols in Able-Bodied and Stroke Subjects

e110 associated with inpatient rehabilitation outcomes. Despite extensive research on the predictors of outcomes among inpatient rehabilitation patients, such as age, functional status, and comorbidity status, little research has assessed the association of therapy time during rehabilitation and rehabilitation outcomes. Design: Retrospective cohort study through rehabilitation database and medical record chart reviews. Setting: Three West-coast inpatient rehabilitation facilities. Participants: Stroke patients discharged from the three inpatient rehabilitation facilities January 1, 2012 to December 31, 2013 (n Z 1,043). Interventions: N/A. Main Outcome Measure(s): Discharge to a community setting, and functional gain, as measured through the FIM instrument. Results: On average, stroke patients received 42.1 total hours of therapy time during their inpatient rehabilitation stay over an average stay of 15.1 days; 15.9 physical therapy (PT) hours, 16.8 occupational therapy (OT) hours, and 9.7 speech language and pathology (SLP) hours (data from 1,023 patients). Unadjusted linear regression shows an increase in one hour of total therapy time and one hour of time by discipline (PT, OT, and SLP) were significantly associated with an increase in total FIM gain, 0.3, 0.6, 0.4, and 0.5 (all p < .001), respectively. Conversely, only time spent in the SLP therapy type was associated with an increased chance of being discharged to a community setting (one hour of SLP therapy odds ratio Z 1.02, p Z .013) in unadjusted logistic regression. Conclusions: While adjusted analyses are required and planned for future analyses, the unadjusted analyses shows an association between an increase in therapy hours, both total and by discipline, and positive rehabilitation outcomes among stroke patients. Key Words: Stroke, Outcomes research, Physical therapy, Occupational therapy, Speech-language pathology Disclosure(s): None Disclosed.

Research Poster 4143 Validity and Reliability of Two Reachable Workspace Volume Protocols in Able-Bodied and Stroke Subjects Craig David Workman (University of Houston), Adam Thrasher Objective(s): To assess the validity and reliability of two approaches to measuring Reachable Workspace Volume (RWV) in able-bodied individuals and subjects who have hemiparesis due to stroke. Design: This study used a cross-sectional, experimental control design. Setting: The Center for Neuromotor and Biomechanics Research, University of Houston, Houston, TX. Participants: Able-bodied subjects (nZ15) and subjects with hemiparesis due to stroke (nZ8) participated in this study. Interventions: Each subject completed six trials of two different randomly-ordered RWV measurement protocols (POLES and PLANES) over two test sessions (12 trials total). Each measurement protocol was captured in a 12-camera 3D motion analysis system (Vicon, Centennial, CO, USA). RWV was calculated based on the movement of a single marker on the hand. Main Outcome Measure(s): Intraclass correlation coefficients (ICC) were determined to represent reliability, and Pearson’s linear correlation coefficient, r, between RWV and the Modified Functional Reach Test was determined to represent validity. Results: Able-bodied subjects: POLES had excellent validity (rZ 0.83) and excellent reliability (ICC (95% CI) Z 0.91 (0.80 - 0.97)) for the left hand and excellent validity (r Z 0.93) and good reliability (ICC (95% CI) Z 0.87 (0.74 - 0.95)) for the right hand. PLANES had good validity (r Z 0.77) and good reliability (ICC (95% CI) Z 0.80 (0.60 - 0.92)) for the left hand and good validity (r Z 0.74) and excellent reliability (ICC (95% CI) Z 0.90 (0.77 - 0.96)) for the right hand. Subjects with stroke, POLES had good validity (r Z 0.78) and excellent reliability (ICC (95% CI) Z 0.98

Research Posters (0.92 e 1.00)), while, PLANES had good validity (r Z 0.74) and excellent reliability (ICC (95% CI) Z 0.96 (0.85 - 0.99)) for the affected side. For the unaffected side, POLES had good validity (r Z 0.68) and excellent reliability (ICC (95% CI) Z 0.92 (0.76 - 0.98)), while PLANES had good validity (r Z 0.69) and good reliability (ICC (95% CI) Z 0.85 (0.57 - 0.97)). Conclusions: Both measurement protocols provided valid and reliable measures of RWV. This study is consistent previous work, and provides suggestions for future research involving RWV measurement. Key Words: Stroke, Reachable workspace, Upper extremity Disclosure(s): None Disclosed. Research Poster 4146 WITHDRAWN

Research Poster 4150 Prospective Tracking and Analysis of TBI in Veterans and Military Personnel at Palo Alto DVBIC Nytzia Licona (DVBIC), Joyce Chung, John Poole, Nancy Laurenson, Odette Harris Objective(s): To present a chronicle of the history and develop of the Clinical Tracking Form study at VAPAHCS and to describe the study population. Design: A prospective, multi-site, longitudinal study conducted by DVBIC in collaboration with several military treatment facilities and VA Medical Centers. Between 2005-20011 participants’ injury data was collected at baseline and followed at 6 months, 1 year and yearly up to 10 years postenrollment date. Since 2012, injury data is collected at baseline and participants are followed at year 1, 2, 5 and every five years through lifetime post-injury date. Setting: Regional Veterans Affair Medical Center. Participants: 211 US Military Service Members and Veterans who sustained a TBI during combat or other non-combat related situations within the previous 10 years, and presented for rehabilitation and treatment at the Polytrauma System of Care at VA Palo Alto from 2002-2012. Interventions: N/A. Main Outcome Measure(s): Characteristics of patients with TBI based on TBI severity and mechanism of injury over time. Results: The median enrollment by date of injury was 22 subjects per year. In categorizing TBI severity 60% were severe, 26% were mild, and 14% were moderate TBIs. By comparing TBI severity, combat vs non-combat situations, the majority of mTBI (71%) occurred in combat whereas most of severe injures (62%) occurred stateside. Conclusions: Blast was the mechanism of injury responsible for the majority of TBIs (82%) in combat. The most affected participants injured by blast were those in the 19-34 years old age-groups, sustaining the highest proportion of severe TBIs (37%). Mild TBI was very significant in military personnel who have acquired multiple blastrelated injuries. Key Words: Traumatic brain injury, Longitudinal study, Polytrauma Disclosure(s): None Disclosed. Research Poster 4152 Speech-Language Interventions in an Adolescent with Language Impairment, Tic Disorder and ADHD: A Case Study Leanne Marie Elmer (Mayo Clinic), Tanya Brown, Michael Tiede, Cassie Marie Green, Edythe Strand

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