Technical note: MR‐compatible pedal ergometer with electromechanical pedal resistance and exercise triggering enhanced by visual feedback via video display.
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| Title: | Technical note: MR‐compatible pedal ergometer with electromechanical pedal resistance and exercise triggering enhanced by visual feedback via video display. |
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| Authors: | Sedivy, Petr1 (AUTHOR), Dezortova, Monika1 (AUTHOR), Rydlo, Jan2 (AUTHOR), Moravec, Petr3 (AUTHOR), Krizek, Ivan4 (AUTHOR), Setinova, Bara1 (AUTHOR), Pajuelo, Dita1 (AUTHOR), Burian, Martin1 (AUTHOR), Hajek, Milan1 (AUTHOR) miha@ikem.cz |
| Source: | Medical Physics. Dec2023, Vol. 50 Issue 12, p8063-8068. 6p. |
| Subjects: | Isometric exercise, Dynamometer, Intraclass correlation, Electric displacement, Projectors, Magnetic resonance |
| Abstract: | Background: During and after exercise, dynamic 31P MR parameters are typically measured using an MR‐compatible ergometer. Self‐built equipment for local condition can be constructed where possible. Purpose: To develop a pedal resistance ergometer with rocker arm based on a system that combines electric weight displacement, visual self‐monitoring, and exercise triggering. The repeatability and reproducibility were tested. Methods: The hardware and software for the ergometer were constructed from commercial components in a home laboratory. Twelve volunteers participated in the testing of the ergometer. Results: A fully automated ergometer system was developed, allowing the pedal resistance to be adjusted during the examination. The system includes a self‐monitoring and triggering mechanism that enables both the operator and subject to monitor pedal frequency and force. The operator can modify the pedal resistance as desired during the exercise. This self‐monitoring solution is simple and cost‐effective, requiring only a commercial potentiometer, an Arduino converter, and a conventional video projector with a personal computer (PC). Additionally, all system components are located outside the magnetic resonance (MR) room, avoiding interference with the MR system. Results of several test of the reproducibility/repeatability of power at three pedal resistance values (15%, 24%, 25% maximal voluntary force) were expressed both as a coefficient of variation ranging from 6% to 3.1% and as an intraclass correlation of coefficient ranging from 0.96 to 0.99. Similar values were also found for other dynamic parameters of 31P MR spectroscopy. These findings are similar to published data obtained on different types of ergometers. Conclusions: Based on more than 1 year of usage, the ergometer proved successful in handling stationary and variable loads, and can be easily operated by a single user. [ABSTRACT FROM AUTHOR] |
| Copyright of Medical Physics is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 174011333 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Technical note: MR‐compatible pedal ergometer with electromechanical pedal resistance and exercise triggering enhanced by visual feedback via video display. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Sedivy%2C+Petr%22">Sedivy, Petr</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Dezortova%2C+Monika%22">Dezortova, Monika</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Rydlo%2C+Jan%22">Rydlo, Jan</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Moravec%2C+Petr%22">Moravec, Petr</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Krizek%2C+Ivan%22">Krizek, Ivan</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Setinova%2C+Bara%22">Setinova, Bara</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Pajuelo%2C+Dita%22">Pajuelo, Dita</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Burian%2C+Martin%22">Burian, Martin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hajek%2C+Milan%22">Hajek, Milan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> miha@ikem.cz</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Medical+Physics%22">Medical Physics</searchLink>. Dec2023, Vol. 50 Issue 12, p8063-8068. 6p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Isometric+exercise%22">Isometric exercise</searchLink><br /><searchLink fieldCode="DE" term="%22Dynamometer%22">Dynamometer</searchLink><br /><searchLink fieldCode="DE" term="%22Intraclass+correlation%22">Intraclass correlation</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+displacement%22">Electric displacement</searchLink><br /><searchLink fieldCode="DE" term="%22Projectors%22">Projectors</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+resonance%22">Magnetic resonance</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Background: During and after exercise, dynamic 31P MR parameters are typically measured using an MR‐compatible ergometer. Self‐built equipment for local condition can be constructed where possible. Purpose: To develop a pedal resistance ergometer with rocker arm based on a system that combines electric weight displacement, visual self‐monitoring, and exercise triggering. The repeatability and reproducibility were tested. Methods: The hardware and software for the ergometer were constructed from commercial components in a home laboratory. Twelve volunteers participated in the testing of the ergometer. Results: A fully automated ergometer system was developed, allowing the pedal resistance to be adjusted during the examination. The system includes a self‐monitoring and triggering mechanism that enables both the operator and subject to monitor pedal frequency and force. The operator can modify the pedal resistance as desired during the exercise. This self‐monitoring solution is simple and cost‐effective, requiring only a commercial potentiometer, an Arduino converter, and a conventional video projector with a personal computer (PC). Additionally, all system components are located outside the magnetic resonance (MR) room, avoiding interference with the MR system. Results of several test of the reproducibility/repeatability of power at three pedal resistance values (15%, 24%, 25% maximal voluntary force) were expressed both as a coefficient of variation ranging from 6% to 3.1% and as an intraclass correlation of coefficient ranging from 0.96 to 0.99. Similar values were also found for other dynamic parameters of 31P MR spectroscopy. These findings are similar to published data obtained on different types of ergometers. Conclusions: Based on more than 1 year of usage, the ergometer proved successful in handling stationary and variable loads, and can be easily operated by a single user. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Medical Physics is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1002/mp.16682 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 6 StartPage: 8063 Subjects: – SubjectFull: Isometric exercise Type: general – SubjectFull: Dynamometer Type: general – SubjectFull: Intraclass correlation Type: general – SubjectFull: Electric displacement Type: general – SubjectFull: Projectors Type: general – SubjectFull: Magnetic resonance Type: general Titles: – TitleFull: Technical note: MR‐compatible pedal ergometer with electromechanical pedal resistance and exercise triggering enhanced by visual feedback via video display. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Sedivy, Petr – PersonEntity: Name: NameFull: Dezortova, Monika – PersonEntity: Name: NameFull: Rydlo, Jan – PersonEntity: Name: NameFull: Moravec, Petr – PersonEntity: Name: NameFull: Krizek, Ivan – PersonEntity: Name: NameFull: Setinova, Bara – PersonEntity: Name: NameFull: Pajuelo, Dita – PersonEntity: Name: NameFull: Burian, Martin – PersonEntity: Name: NameFull: Hajek, Milan IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 12 Text: Dec2023 Type: published Y: 2023 Identifiers: – Type: issn-print Value: 00942405 Numbering: – Type: volume Value: 50 – Type: issue Value: 12 Titles: – TitleFull: Medical Physics Type: main |
| ResultId | 1 |
