Comparison of Maximum Fingertip Force Distribution in Cylindrical Grasping Between Healthy Adults and Patients With Spinal Cord Injury

Background: It is known that hand strength and fingertip force are used as an indicator of muscle strength and are also highly related to the various chronic symptoms and even lifespan. To use the individual fingertip force (IFF) as a quantitative index for clinical evaluation, the IFF should be...

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Main Authors: Jisun Hwang, Jae Sun Ree, Seonhong Hwang
Format: Article
Language:English
Published: Korean Research Society of Physical Therapy 2022-02-01
Series:Physical Therapy Korea
Subjects:
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author Jisun Hwang
Jae Sun Ree
Seonhong Hwang
author_facet Jisun Hwang
Jae Sun Ree
Seonhong Hwang
author_sort Jisun Hwang
collection DOAJ
description Background: It is known that hand strength and fingertip force are used as an indicator of muscle strength and are also highly related to the various chronic symptoms and even lifespan. To use the individual fingertip force (IFF) as a quantitative index for clinical evaluation, the IFF should be measured and analyzed with various variables from various subjects, such as the normal range of fingertip force and the difference in its distribution by disease. Objects: We tried to measure and analyze the mean maximum IFF distribution during grasping a cylindrical object in healthy adults and patients with spinal cord injury (SCI). Methods: Five Force-sensitive resistor (FSR) sensors were attached to the fingertips of 24 healthy people and 13 patients with SCI. They were asked to grip the object three times for five seconds with their maximum effort. Results: The mean maximum IFF of the healthy adult group’s thumb, index, and middle finger was similar statistically and showed relatively larger than IFF of the ring and small finger. It is a 3-point pinch grip pattern. All fingertip forces of patients with SCI decreased by more than 50% to the healthy group, and their IFF of the middle finger was relatively the largest among the five fingertip forces. The cervical level injured SCI patients showed significantly decreased IFFs compared to thoracic level injured SCI patients. Conclusion: We expect that this study results would be helpful for rehabilitation diagnosis and therapy goal decision with robust further study.
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spelling doaj.art-02bb0f1490e3488abbab38f1e7b4a1b22024-04-09T02:33:34ZengKorean Research Society of Physical TherapyPhysical Therapy Korea1225-89622287-982X2022-02-01291283610.12674/ptk.2022.29.1.28Comparison of Maximum Fingertip Force Distribution in Cylindrical Grasping Between Healthy Adults and Patients With Spinal Cord InjuryJisun Hwang0https://orcid.org/0000-0002-5800-013XJae Sun Ree1https://orcid.org/0000-0003-4789-8666Seonhong Hwang2https://orcid.org/0000-0001-9217-8970Hoseo University, Asan, KoreaHoseo University, Asan, KoreaHoseo University, Asan, KoreaBackground: It is known that hand strength and fingertip force are used as an indicator of muscle strength and are also highly related to the various chronic symptoms and even lifespan. To use the individual fingertip force (IFF) as a quantitative index for clinical evaluation, the IFF should be measured and analyzed with various variables from various subjects, such as the normal range of fingertip force and the difference in its distribution by disease. Objects: We tried to measure and analyze the mean maximum IFF distribution during grasping a cylindrical object in healthy adults and patients with spinal cord injury (SCI). Methods: Five Force-sensitive resistor (FSR) sensors were attached to the fingertips of 24 healthy people and 13 patients with SCI. They were asked to grip the object three times for five seconds with their maximum effort. Results: The mean maximum IFF of the healthy adult group’s thumb, index, and middle finger was similar statistically and showed relatively larger than IFF of the ring and small finger. It is a 3-point pinch grip pattern. All fingertip forces of patients with SCI decreased by more than 50% to the healthy group, and their IFF of the middle finger was relatively the largest among the five fingertip forces. The cervical level injured SCI patients showed significantly decreased IFFs compared to thoracic level injured SCI patients. Conclusion: We expect that this study results would be helpful for rehabilitation diagnosis and therapy goal decision with robust further study.fingertip forceforce-senstive resistorgraspgrip
spellingShingle Jisun Hwang
Jae Sun Ree
Seonhong Hwang
Comparison of Maximum Fingertip Force Distribution in Cylindrical Grasping Between Healthy Adults and Patients With Spinal Cord Injury
Physical Therapy Korea
fingertip force
force-senstive resistor
grasp
grip
title Comparison of Maximum Fingertip Force Distribution in Cylindrical Grasping Between Healthy Adults and Patients With Spinal Cord Injury
title_full Comparison of Maximum Fingertip Force Distribution in Cylindrical Grasping Between Healthy Adults and Patients With Spinal Cord Injury
title_fullStr Comparison of Maximum Fingertip Force Distribution in Cylindrical Grasping Between Healthy Adults and Patients With Spinal Cord Injury
title_full_unstemmed Comparison of Maximum Fingertip Force Distribution in Cylindrical Grasping Between Healthy Adults and Patients With Spinal Cord Injury
title_short Comparison of Maximum Fingertip Force Distribution in Cylindrical Grasping Between Healthy Adults and Patients With Spinal Cord Injury
title_sort comparison of maximum fingertip force distribution in cylindrical grasping between healthy adults and patients with spinal cord injury
topic fingertip force
force-senstive resistor
grasp
grip
work_keys_str_mv AT jisunhwang comparisonofmaximumfingertipforcedistributionincylindricalgraspingbetweenhealthyadultsandpatientswithspinalcordinjury
AT jaesunree comparisonofmaximumfingertipforcedistributionincylindricalgraspingbetweenhealthyadultsandpatientswithspinalcordinjury
AT seonhonghwang comparisonofmaximumfingertipforcedistributionincylindricalgraspingbetweenhealthyadultsandpatientswithspinalcordinjury