Can kinematic parameters of 3D reach-to-target movements be used as a proxy for clinical outcome measures in chronic stroke rehabilitation? An exploratory study

被引:10
作者
Adans-Dester, Catherine [1 ,2 ]
Fasoli, Susan E. [2 ]
Fabara, Eric [1 ]
Menard, Nicolas [3 ]
Fox, Annie B. [2 ]
Severini, Giacomo [4 ,5 ]
Bonato, Paolo [1 ,3 ]
机构
[1] Harvard Med Sch, Spaulding Rehabil Hosp, Dept Phys Med & Rehabil, 300 First Ave, Boston, MA 02129 USA
[2] MGH Inst Hlth Profess, Sch Hlth & Rehabil Sci, Boston, MA USA
[3] Harvard Univ, Wyss Inst Biol Inspired Engn, Boston, MA 02115 USA
[4] Univ Coll Dublin, Sch Elect & Elect Engn, Dublin, Ireland
[5] Univ Coll Dublin, Ctr Biomed Engn, Dublin, Ireland
关键词
Clinical outcomes; Kinematics; Rehabilitation; Robot-assisted therapy; Reach-to-target; Stroke; Upper extremity; MOTOR FUNCTION-TEST; HEMIPARETIC ARM; RECOVERY; IMPAIRMENTS; PEOPLE; POSTSTROKE; VALIDITY; MODERATE; SCALE;
D O I
10.1186/s12984-020-00730-1
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
Background: Despite numerous trials investigating robot-assisted therapy (RT) effects on upper-extremity (UE) function after stroke, few have explored the relationship between three-dimensional (3D) reach-to-target kinematics and clinical outcomes. The objectives of this study were to 1) investigate the correlation between kinematic parameters of 3D reach-to-target movements and UE clinical outcome measures, and 2) examine the degree to which differences in kinematic parameters across individuals can account for differences in clinical outcomes in response to RT. Methods: Ten chronic stroke survivors participated in a pilot RT intervention (eighteen 1-h sessions) integrating cognitive skills training and a home-action program. Clinical outcome measures and kinematic parameters of 3D reach-to-target movements were collected pre- and post-intervention. The correlation between clinical outcomes and kinematic parameters was investigated both cross-sectionally and longitudinally (i.e., changes in response to the intervention). Changes in clinical outcomes and kinematic parameters were tested for significance in both group and subject-by-subject analyses.Potential associations between individual differences in kinematic parameters and differences in clinical outcomes were examined. Results: Moderate-to-strong correlation was found between clinical measures and specific kinematic parameters when examined cross-sectionally. Weaker correlation coefficients were found longitudinally. Group analyses revealed significant changes in clinical outcome measures in response to the intervention; no significant group changes were observed in kinematic parameters. Subject-by-subject analyses revealed changes with moderate-to-large effect size in the kinematics of 3D reach-to-target movements pre- vs. post-intervention. Changes in clinical outcomes and kinematic parameters varied widely across participants. Conclusions: Large variability was observed across subjects in response to the intervention. The correlation between changes in kinematic parameters and clinical outcomes in response to the intervention was variable and not strong across parameters, suggesting no consistent change in UE motor strategies across participants. These results highlight the need to investigate the response to interventions at the individual level. This would enable the identification of clusters of individuals with common patterns of change in response to an intervention, providing an opportunity to use cluster-specific kinematic parameters as a proxy of clinical outcomes.
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页数:13
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