Effects of the Surface Texture and Weight of a Pinch Apparatus on the Reliability and Validity of a Hand Sensorimotor Control Assessment

Hsiu Yun Hsu; Ta Shen Kuan; Hsiu Ching Yang; Ching Liang Tsai; Chien Hsien Yeh; Chih Chun Lin; Li Chieh Kuo

doi:10.1016/j.apmr.2018.07.440

Effects of the Surface Texture and Weight of a Pinch Apparatus on the Reliability and Validity of a Hand Sensorimotor Control Assessment

Hsiu Yun Hsu, Ta Shen Kuan, Hsiu Ching Yang, Ching Liang Tsai, Chien Hsien Yeh, Chih Chun Lin, Li Chieh Kuo

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Objectives: To investigate the reliability and validity of a modified pinch apparatus devised with 3 surface textures and 2 different weights for clinical application. Design: Case-controlled study. Setting: A university hospital. Participants: The participants (N=32) included carpal tunnel syndrome (CTS) patients (n=16) with 20 sensory neuropathy hands, and an equal number of age-sex matched volunteers without CTS, as well as young volunteers without CTS (n=16 with 20 hands) used to analyze both the testing validity and reliability of the modified device. Interventions: Not applicable. Main Outcome Measures: The Semmes-Weinstein monofilament (SWM) and two-point discrimination (2PD) tests were conducted, and the force ratio between the FP _peak (peak pinch force during lifting phase) and FL _max (maximum load force at maximum upward acceleration onset) detected from a pinch-holding-up activity (PHUA) under various testing conditions was obtained. Results: The range of the intraclass correlation coefficient of this pinch device was 0.369-0.952. The CTS patients exhibited poorer force modulation ability according to the inertial change in a dynamic lifting task when compared to the controls under all testing conditions (P<.001). The area under the receiver operating characteristic force ratio curve was 0.841, revealing high accuracy of the test for diagnosing CTS neuropathic hands under the testing condition in which the 125-g coarse texture device was used. In addition, the weight factor was shown to have significant effects on the sensitivity and accuracy of the PHUA assessment. Conclusions: This study showed that the PHUA test via the modified pinch apparatus is a sensitive tool that can be used in clinical practice for detecting neuropathic CTS hands. In addition, changing the weight of the pinch device has a significant effect on the sensitivity and accuracy of the PHUA assessment.

Original language	English
Pages (from-to)	620-626
Number of pages	7
Journal	Archives of Physical Medicine and Rehabilitation
Volume	100
Issue number	4
DOIs	https://doi.org/10.1016/j.apmr.2018.07.440
Publication status	Published - 2019 Apr

All Science Journal Classification (ASJC) codes

Physical Therapy, Sports Therapy and Rehabilitation
Rehabilitation

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10.1016/j.apmr.2018.07.440

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@article{561a4d5a0a164eaab6b2da1667780a0a,

title = "Effects of the Surface Texture and Weight of a Pinch Apparatus on the Reliability and Validity of a Hand Sensorimotor Control Assessment",

abstract = " Objectives: To investigate the reliability and validity of a modified pinch apparatus devised with 3 surface textures and 2 different weights for clinical application. Design: Case-controlled study. Setting: A university hospital. Participants: The participants (N=32) included carpal tunnel syndrome (CTS) patients (n=16) with 20 sensory neuropathy hands, and an equal number of age-sex matched volunteers without CTS, as well as young volunteers without CTS (n=16 with 20 hands) used to analyze both the testing validity and reliability of the modified device. Interventions: Not applicable. Main Outcome Measures: The Semmes-Weinstein monofilament (SWM) and two-point discrimination (2PD) tests were conducted, and the force ratio between the FP peak (peak pinch force during lifting phase) and FL max (maximum load force at maximum upward acceleration onset) detected from a pinch-holding-up activity (PHUA) under various testing conditions was obtained. Results: The range of the intraclass correlation coefficient of this pinch device was 0.369-0.952. The CTS patients exhibited poorer force modulation ability according to the inertial change in a dynamic lifting task when compared to the controls under all testing conditions (P<.001). The area under the receiver operating characteristic force ratio curve was 0.841, revealing high accuracy of the test for diagnosing CTS neuropathic hands under the testing condition in which the 125-g coarse texture device was used. In addition, the weight factor was shown to have significant effects on the sensitivity and accuracy of the PHUA assessment. Conclusions: This study showed that the PHUA test via the modified pinch apparatus is a sensitive tool that can be used in clinical practice for detecting neuropathic CTS hands. In addition, changing the weight of the pinch device has a significant effect on the sensitivity and accuracy of the PHUA assessment. ",

author = "Hsu, {Hsiu Yun} and Kuan, {Ta Shen} and Yang, {Hsiu Ching} and Tsai, {Ching Liang} and Yeh, {Chien Hsien} and Lin, {Chih Chun} and Kuo, {Li Chieh}",

note = "Funding Information: Supported by the Medical Device Innovation Center, National Cheng Kung University from the Featured Areas Research Center Program within the framework of the Higher Education Sprout Project by the Ministry of Education in Taiwan. This work was also supported by Ministry of Science and Technology (grant no. MoST 102-2314-B-384-010, Taiwan). Funding Information: Supported by the Medical Device Innovation Center , National Cheng Kung University from the Featured Areas Research Center Program within the framework of the Higher Education Sprout Project by the Ministry of Education in Taiwan. This work was also supported by Ministry of Science and Technology (grant no. MoST 102-2314-B-384-010 , Taiwan). Publisher Copyright: {\textcopyright} 2018 American Congress of Rehabilitation Medicine",

year = "2019",

month = apr,

doi = "10.1016/j.apmr.2018.07.440",

language = "English",

volume = "100",

pages = "620--626",

journal = "Archives of Physical Medicine and Rehabilitation",

issn = "0003-9993",

publisher = "W.B. Saunders Ltd",

number = "4",

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TY - JOUR

T1 - Effects of the Surface Texture and Weight of a Pinch Apparatus on the Reliability and Validity of a Hand Sensorimotor Control Assessment

AU - Hsu, Hsiu Yun

AU - Kuan, Ta Shen

AU - Yang, Hsiu Ching

AU - Tsai, Ching Liang

AU - Yeh, Chien Hsien

AU - Lin, Chih Chun

AU - Kuo, Li Chieh

N1 - Funding Information: Supported by the Medical Device Innovation Center, National Cheng Kung University from the Featured Areas Research Center Program within the framework of the Higher Education Sprout Project by the Ministry of Education in Taiwan. This work was also supported by Ministry of Science and Technology (grant no. MoST 102-2314-B-384-010, Taiwan). Funding Information: Supported by the Medical Device Innovation Center , National Cheng Kung University from the Featured Areas Research Center Program within the framework of the Higher Education Sprout Project by the Ministry of Education in Taiwan. This work was also supported by Ministry of Science and Technology (grant no. MoST 102-2314-B-384-010 , Taiwan). Publisher Copyright: © 2018 American Congress of Rehabilitation Medicine

PY - 2019/4

Y1 - 2019/4

N2 - Objectives: To investigate the reliability and validity of a modified pinch apparatus devised with 3 surface textures and 2 different weights for clinical application. Design: Case-controlled study. Setting: A university hospital. Participants: The participants (N=32) included carpal tunnel syndrome (CTS) patients (n=16) with 20 sensory neuropathy hands, and an equal number of age-sex matched volunteers without CTS, as well as young volunteers without CTS (n=16 with 20 hands) used to analyze both the testing validity and reliability of the modified device. Interventions: Not applicable. Main Outcome Measures: The Semmes-Weinstein monofilament (SWM) and two-point discrimination (2PD) tests were conducted, and the force ratio between the FP peak (peak pinch force during lifting phase) and FL max (maximum load force at maximum upward acceleration onset) detected from a pinch-holding-up activity (PHUA) under various testing conditions was obtained. Results: The range of the intraclass correlation coefficient of this pinch device was 0.369-0.952. The CTS patients exhibited poorer force modulation ability according to the inertial change in a dynamic lifting task when compared to the controls under all testing conditions (P<.001). The area under the receiver operating characteristic force ratio curve was 0.841, revealing high accuracy of the test for diagnosing CTS neuropathic hands under the testing condition in which the 125-g coarse texture device was used. In addition, the weight factor was shown to have significant effects on the sensitivity and accuracy of the PHUA assessment. Conclusions: This study showed that the PHUA test via the modified pinch apparatus is a sensitive tool that can be used in clinical practice for detecting neuropathic CTS hands. In addition, changing the weight of the pinch device has a significant effect on the sensitivity and accuracy of the PHUA assessment.

AB - Objectives: To investigate the reliability and validity of a modified pinch apparatus devised with 3 surface textures and 2 different weights for clinical application. Design: Case-controlled study. Setting: A university hospital. Participants: The participants (N=32) included carpal tunnel syndrome (CTS) patients (n=16) with 20 sensory neuropathy hands, and an equal number of age-sex matched volunteers without CTS, as well as young volunteers without CTS (n=16 with 20 hands) used to analyze both the testing validity and reliability of the modified device. Interventions: Not applicable. Main Outcome Measures: The Semmes-Weinstein monofilament (SWM) and two-point discrimination (2PD) tests were conducted, and the force ratio between the FP peak (peak pinch force during lifting phase) and FL max (maximum load force at maximum upward acceleration onset) detected from a pinch-holding-up activity (PHUA) under various testing conditions was obtained. Results: The range of the intraclass correlation coefficient of this pinch device was 0.369-0.952. The CTS patients exhibited poorer force modulation ability according to the inertial change in a dynamic lifting task when compared to the controls under all testing conditions (P<.001). The area under the receiver operating characteristic force ratio curve was 0.841, revealing high accuracy of the test for diagnosing CTS neuropathic hands under the testing condition in which the 125-g coarse texture device was used. In addition, the weight factor was shown to have significant effects on the sensitivity and accuracy of the PHUA assessment. Conclusions: This study showed that the PHUA test via the modified pinch apparatus is a sensitive tool that can be used in clinical practice for detecting neuropathic CTS hands. In addition, changing the weight of the pinch device has a significant effect on the sensitivity and accuracy of the PHUA assessment.

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Effects of the Surface Texture and Weight of a Pinch Apparatus on the Reliability and Validity of a Hand Sensorimotor Control Assessment

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