Poster 73 Kinematic Validity of Arm-Trunk Movement During Reaching within and beyond Arm’s Length Poststroke

e36 Poster 71 Backward Walking Training to Improve Mobility in Acute Stroke: A Pilot Study Dorian Kay Rose (University of Florida), Lou DeMark Objective: To determine the feasibility of administering a Backward Walking (BW) training program in acute stroke and to compare its effectiveness to standard Balance Training (BT) on walking speed and balance ability. Design: Single-blind randomized controlled trial Setting: Inpatient stroke rehabilitation unit Participants: Nine patients with first-time stroke (6 female; 6 LCVA; 65.19.5 years old; 8.14.1 days post-stroke) were randomly assigned to a BW (nZ4) or BT (nZ5) group. Interventions: Eight, daily, 30-minute physical therapist-directed BW or BT sessions in addition to participants’ standard rehabilitation program. Main Outcome Measure(s): Walking, balance ability and balance selfefficacy were evaluated with the 5 Meter Walk Test (5MWT), Berg Balance Scale (BBS), 3 Meter Backward Walk Test (3MBWT) and Activities-Specific Balance Confidence Scale (ABC). Results: There were no differences in age, time post-stroke, or any outcome measures between the two groups at baseline (p > 0.05). Greater post-intervention change was observed for the BW compared to the BT group in both 5MWT (BW 0.520.22; BT 0.150.24) and 3MBWT (BW 0.460.16; BT 0.010.09) (p < 0.05). No group statistical differences in change scores were observed in BBS (BW 31.37.7; BT 23.611.2) or ABC (BW 29.612.9; BT 12.617.8) (p > 0.05). Conclusions: Patients 1-week post-stroke were able to participate in 30 minutes of therapy in addition to their prescribed rehabilitation program. In this pilot study, BW training resulted in greater improvements in both forward and backward walking speed although did not preferentially enhance balance nor balance confidence compared to traditional BT. BW may be an important addition to acute-stroke gait and balance rehabilitation. Continued investigation of this unique rehabilitation approach with a larger sample size is warranted. Key Words: Stroke, balance, gait, rehabilitation, physical therapy. Disclosure: Dorian Rose has nothing to disclose. Poster 72 Test-retest Reliability and Correlation Between Maximal Exercise Test and Functional Abilities in Stroke Patients Sungju Jee (Chungnam National University Hospital) Objective(s): To evaluate the test-retest reliability of maximal treadmill test in stroke patients. To Evaluate the correlation between maximal treadmill test and functional capacity of stroke patients. To identify the proper protocol of maximal treamill test in stroke patients Design: Reliability Measurement Setting: Rehabilitation Center of Regional Cardiocerebrovascular Disease Center

Stroke Diagnosis Participants: 15 Hemiplegic Stroke Patients. Patients can walk independently with 9 meters long. Interventions: Maximal treadmill test with modified Harbor protocol. Main Outcome Measure(s): Intraclass correlation coefficient, Spearmann’s correlation coefficient Results: All 15 patients completed the maximal exercise test and the test was stopped at the patients’ request. In the Intra-class Correlation test, a very high, significant test-retest reliability was found in VO2 (ICCZ0.95) and high in respiratory exchange ratio (RER) (ICCZ0.83), respectively. Peak heart rate and systolic blood pressure showed a lesser and insignificant test-retest reliability (ICCZ0.643, 0.606). There were no significant correlations between peak VO2 and results of K-MBI, BBS, TUG, 10m walking test. Conclusions: The test-retest reliability of peak VO2 and RER were high in maximal exercise test performed for stroke patients. These results suggest that maximal exercise test could be the useful screening test for assess the cardiovascular fitness. Disclosure: Sungju Jee has nothing to disclose.

Poster 73 Kinematic Validity of Arm-Trunk Movement During Reaching within and beyond Arm’s Length Poststroke Ching-Yi Wu (Department of Occupational Therapy, Graduate Institute of Behavioral Sciences), Keh-chung Lin, Rong-Jiuan Liing Objective: The purpose of this study was to investigate the concurrent validity of kinematic measures before and after treatment and the predictive validity for reaching tasks Design: Longitudinal secondary analysis. Setting: Rehabilitation clinics. Participants: Ninty-seven participants with chronic stroke (mean ageZ 55.9 years, SDZ10.9) 18.5 months post onsetof a first-ever cerebrovascular accident were recruited in this study. Interventions: All participants received 90 to 120 minutes of intensive upper extremity (UE) rehabilitation program every weekday for 3 to 4 weeks. Main Outcome Measure(s): The reaching task, measured by kinematics, and the Wolf Motor Function Test (WMFT) were evaluated before and after treatment. WMFT was used as the criterion measurefor UE motor function. Results: Endpoint movement time (MT) was the primary indicator to represent UE motor functionbefore treatment. Trunk MT and trunk displacement were the primary indicators aftertreatment. Trunk MT combined with trunk displacement can predict the motorfunction of UE in chronic stroke patients after treatment. The kinematic variables when participants performed the reaching task within arm’s length can better explain UE motor function than beyond arm’s length. Conclusions: The different kinematic measures of reaching movement were selected to separately reflect the concurrent and predictive validity for participants with chronic stroke.Measuring arm-trunk kinematic performance using a seated reaching task with the target placed within arm’s length might be sufficient to reflect motor function. Key Words: Kinematics, validity, arm-trunk movement, reaching, stroke. Disclosure: Ching-Yi Wu has nothing to disclose.

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