The Effect of the Poly-Articulated Prosthetic Hand on Shoulder and Trunk Compensatory Movements during Manipulation and Grasp Tasks
Conventional myoelectric prosthetic hands only offer a basic tri-digital pinch. Transradial amputees need to compensate for this lack of function with altered kinematics at the shoulder and trunk that might expose them to an increased risk of musculoskeletal injuries. A poly-articulated prosthetic h...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Prosthesis |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2673-1592/5/1/14 |
| _version_ | 1797609303234838528 |
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| author | Andrea Giovanni Cutti Federico Morosato Emanuele Gruppioni Gregorio Teti Lorenzo De Michieli Cosimo Gentile |
| author_facet | Andrea Giovanni Cutti Federico Morosato Emanuele Gruppioni Gregorio Teti Lorenzo De Michieli Cosimo Gentile |
| author_sort | Andrea Giovanni Cutti |
| collection | DOAJ |
| description | Conventional myoelectric prosthetic hands only offer a basic tri-digital pinch. Transradial amputees need to compensate for this lack of function with altered kinematics at the shoulder and trunk that might expose them to an increased risk of musculoskeletal injuries. A poly-articulated prosthetic hand may reduce the physical compensatory movements and close the gap between the sound and the prosthetic side. Six male transradial amputees completed four standardized reach-and-grasp activities with their tri-digital, poly-articulated and sound side hands. Trunk, shoulder girdle, scapula and humerus kinematics were measured with an optoelectronic system. Differences between hands were analyzed in terms of the amplitude of motion, the duration of the altered kinematics over the motion cycle, peak-to-peak amplitude and time to complete the activity. An overall score was defined, which assigned three points when the kinematics of a joint angle was altered for over 41% of the motion cycle, two points between 11 ÷ 40% and one point between 1 ÷ 10%; thus, a lower score indicates less variation from normal kinematics. Despite no changes in times, tri-digital vs. sound hand scored 93 points, tri-digital vs. poly-articulated hands scored 49 and poly-articulated vs. sound hand scored 28, supporting the hypotheses of the poly-articulated hand positively affects shoulder and trunk kinematics. |
| first_indexed | 2024-03-11T05:59:38Z |
| format | Article |
| id | doaj.art-da19b570b8cc4a4392044c9924fe69df |
| institution | Directory Open Access Journal |
| issn | 2673-1592 |
| language | English |
| last_indexed | 2024-03-11T05:59:38Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Prosthesis |
| spelling | doaj.art-da19b570b8cc4a4392044c9924fe69df2023-11-17T13:33:12ZengMDPI AGProsthesis2673-15922023-02-015118219610.3390/prosthesis5010014The Effect of the Poly-Articulated Prosthetic Hand on Shoulder and Trunk Compensatory Movements during Manipulation and Grasp TasksAndrea Giovanni Cutti0Federico Morosato1Emanuele Gruppioni2Gregorio Teti3Lorenzo De Michieli4Cosimo Gentile5Centro Protesi Inail, Vigorso di Budrio, 40054 Bologna, ItalyCentro Protesi Inail, Vigorso di Budrio, 40054 Bologna, ItalyCentro Protesi Inail, Vigorso di Budrio, 40054 Bologna, ItalyCentro Protesi Inail, Vigorso di Budrio, 40054 Bologna, ItalyRehabTechnology Lab, Italian Institute of Technology, Via Morego, 30, 16163 Genova, ItalyCentro Protesi Inail, Vigorso di Budrio, 40054 Bologna, ItalyConventional myoelectric prosthetic hands only offer a basic tri-digital pinch. Transradial amputees need to compensate for this lack of function with altered kinematics at the shoulder and trunk that might expose them to an increased risk of musculoskeletal injuries. A poly-articulated prosthetic hand may reduce the physical compensatory movements and close the gap between the sound and the prosthetic side. Six male transradial amputees completed four standardized reach-and-grasp activities with their tri-digital, poly-articulated and sound side hands. Trunk, shoulder girdle, scapula and humerus kinematics were measured with an optoelectronic system. Differences between hands were analyzed in terms of the amplitude of motion, the duration of the altered kinematics over the motion cycle, peak-to-peak amplitude and time to complete the activity. An overall score was defined, which assigned three points when the kinematics of a joint angle was altered for over 41% of the motion cycle, two points between 11 ÷ 40% and one point between 1 ÷ 10%; thus, a lower score indicates less variation from normal kinematics. Despite no changes in times, tri-digital vs. sound hand scored 93 points, tri-digital vs. poly-articulated hands scored 49 and poly-articulated vs. sound hand scored 28, supporting the hypotheses of the poly-articulated hand positively affects shoulder and trunk kinematics.https://www.mdpi.com/2673-1592/5/1/14transradial amputationprostheticshandshoulderthorax |
| spellingShingle | Andrea Giovanni Cutti Federico Morosato Emanuele Gruppioni Gregorio Teti Lorenzo De Michieli Cosimo Gentile The Effect of the Poly-Articulated Prosthetic Hand on Shoulder and Trunk Compensatory Movements during Manipulation and Grasp Tasks Prosthesis transradial amputation prosthetics hand shoulder thorax |
| title | The Effect of the Poly-Articulated Prosthetic Hand on Shoulder and Trunk Compensatory Movements during Manipulation and Grasp Tasks |
| title_full | The Effect of the Poly-Articulated Prosthetic Hand on Shoulder and Trunk Compensatory Movements during Manipulation and Grasp Tasks |
| title_fullStr | The Effect of the Poly-Articulated Prosthetic Hand on Shoulder and Trunk Compensatory Movements during Manipulation and Grasp Tasks |
| title_full_unstemmed | The Effect of the Poly-Articulated Prosthetic Hand on Shoulder and Trunk Compensatory Movements during Manipulation and Grasp Tasks |
| title_short | The Effect of the Poly-Articulated Prosthetic Hand on Shoulder and Trunk Compensatory Movements during Manipulation and Grasp Tasks |
| title_sort | effect of the poly articulated prosthetic hand on shoulder and trunk compensatory movements during manipulation and grasp tasks |
| topic | transradial amputation prosthetics hand shoulder thorax |
| url | https://www.mdpi.com/2673-1592/5/1/14 |
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