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Inertial Sensing Based Assessment Methods to Quantify the Effectiveness of Post-Stroke Rehabilitation.

Li HT, Huang JJ, Pan CW, Chi HI, Pan MC - Sensors (Basel) (2015)

Bottom Line: In clinical settings, traditional stroke rehabilitation evaluation methods are subjectively scored by occupational therapists, and the assessment results vary individually.To address this issue, this study aims to develop a stroke rehabilitation assessment system by using inertial measurement units.Especially, as a unique feature of the study the weight for each of three evaluation indicators was estimated by the least squares method.

View Article: PubMed Central - PubMed

Affiliation: Graduate Institute of Biomedical Engineering, National Central University, Jhongli 320, Taiwan. winterfrost1143@gmail.com.

ABSTRACT
In clinical settings, traditional stroke rehabilitation evaluation methods are subjectively scored by occupational therapists, and the assessment results vary individually. To address this issue, this study aims to develop a stroke rehabilitation assessment system by using inertial measurement units. The inertial signals from the upper extremities were acquired, from which three quantitative indicators were extracted to reflect rehabilitation performance during stroke patients' movement examination, i.e., shoulder flexion. Both healthy adults and stroke patients were recruited to correlate the proposed quantitative evaluation indices and traditional rehab assessment scales. Especially, as a unique feature of the study the weight for each of three evaluation indicators was estimated by the least squares method. The quantitative results demonstrate the proposed method accurately reflects patients' recovery from pre-rehabilitation, and confirm the feasibility of applying inertial signals to evaluate rehab performance through feature extraction. The implemented assessment scheme appears to have the potential to overcome some shortcomings of traditional assessment methods and indicates rehab performance correctly.

No MeSH data available.


Related in: MedlinePlus

Measured inertial signals from the wrist of a healthy adult during the movement of shoulder flexion (three cycles). (a) Dominant hand; (b) non-dominant hand.
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sensors-15-16196-f003: Measured inertial signals from the wrist of a healthy adult during the movement of shoulder flexion (three cycles). (a) Dominant hand; (b) non-dominant hand.

Mentions: The test subject in this case is a normal healthy adult without any upper limb impediments. Figure 3 shows the inertial signals measured from his wrist during the shoulder flexion movement. Note that in the subsequent indicator calculation the dominant hand is viewed as the unaffected side whereas the non-dominant hand as the affected side. Table 1 lists the calculated indicators for this case.


Inertial Sensing Based Assessment Methods to Quantify the Effectiveness of Post-Stroke Rehabilitation.

Li HT, Huang JJ, Pan CW, Chi HI, Pan MC - Sensors (Basel) (2015)

Measured inertial signals from the wrist of a healthy adult during the movement of shoulder flexion (three cycles). (a) Dominant hand; (b) non-dominant hand.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4541874&req=5

sensors-15-16196-f003: Measured inertial signals from the wrist of a healthy adult during the movement of shoulder flexion (three cycles). (a) Dominant hand; (b) non-dominant hand.
Mentions: The test subject in this case is a normal healthy adult without any upper limb impediments. Figure 3 shows the inertial signals measured from his wrist during the shoulder flexion movement. Note that in the subsequent indicator calculation the dominant hand is viewed as the unaffected side whereas the non-dominant hand as the affected side. Table 1 lists the calculated indicators for this case.

Bottom Line: In clinical settings, traditional stroke rehabilitation evaluation methods are subjectively scored by occupational therapists, and the assessment results vary individually.To address this issue, this study aims to develop a stroke rehabilitation assessment system by using inertial measurement units.Especially, as a unique feature of the study the weight for each of three evaluation indicators was estimated by the least squares method.

View Article: PubMed Central - PubMed

Affiliation: Graduate Institute of Biomedical Engineering, National Central University, Jhongli 320, Taiwan. winterfrost1143@gmail.com.

ABSTRACT
In clinical settings, traditional stroke rehabilitation evaluation methods are subjectively scored by occupational therapists, and the assessment results vary individually. To address this issue, this study aims to develop a stroke rehabilitation assessment system by using inertial measurement units. The inertial signals from the upper extremities were acquired, from which three quantitative indicators were extracted to reflect rehabilitation performance during stroke patients' movement examination, i.e., shoulder flexion. Both healthy adults and stroke patients were recruited to correlate the proposed quantitative evaluation indices and traditional rehab assessment scales. Especially, as a unique feature of the study the weight for each of three evaluation indicators was estimated by the least squares method. The quantitative results demonstrate the proposed method accurately reflects patients' recovery from pre-rehabilitation, and confirm the feasibility of applying inertial signals to evaluate rehab performance through feature extraction. The implemented assessment scheme appears to have the potential to overcome some shortcomings of traditional assessment methods and indicates rehab performance correctly.

No MeSH data available.


Related in: MedlinePlus