Reliability of one repetition maximum measurement for leg extension using an improved leg extension machine
Objectives: This study examined the reliability of one repetition maximum measurement (1RM) for leg extension using an improved leg extension machine through a comparison between before and after machine improvement. Methods: Twenty-one healthy adult males were recruited. A ratchet was welded to the...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Fujita Medical Society
2018-11-01
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| Series: | Fujita Medical Journal |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/fmj/4/4/4_2018002/_pdf/-char/en |
| _version_ | 1819295140902076416 |
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| author | Yoshikiyo Kanada Hiroaki Sakurai Yoshito Sugiura Tomoaki Arai Soichiro Koyama Shigeo Tanabe |
| author_facet | Yoshikiyo Kanada Hiroaki Sakurai Yoshito Sugiura Tomoaki Arai Soichiro Koyama Shigeo Tanabe |
| author_sort | Yoshikiyo Kanada |
| collection | DOAJ |
| description | Objectives: This study examined the reliability of one repetition maximum measurement (1RM) for leg extension using an improved leg extension machine through a comparison between before and after machine improvement. Methods: Twenty-one healthy adult males were recruited. A ratchet was welded to the knee rotation axis of the leg extension machine to prevent counter rotation due to the free fall of weights. The 1RM measurement for knee extension was performed before and after machine improvement to observe changes in their reliability using the intra-class correlation coefficient (ICC). Results: After machine improvement, an intra-rater reliability of ICC(1,1)=0.99 and inter-rater reliability of ICC(2,1)=0.99 were achieved. Reliability before and after machine improvement was also high, with ICC(2,1)=0.99. Conclusions: The reliability of 1RM measurement for leg extension using an improved leg extension machine was high. |
| first_indexed | 2024-12-24T04:37:29Z |
| format | Article |
| id | doaj.art-517d8e939c8946a09bce2a46b35f02cc |
| institution | Directory Open Access Journal |
| issn | 2189-7247 2189-7255 |
| language | English |
| last_indexed | 2024-12-24T04:37:29Z |
| publishDate | 2018-11-01 |
| publisher | Fujita Medical Society |
| record_format | Article |
| series | Fujita Medical Journal |
| spelling | doaj.art-517d8e939c8946a09bce2a46b35f02cc2022-12-21T17:15:02ZengFujita Medical SocietyFujita Medical Journal2189-72472189-72552018-11-0144939610.20407/fmj.4.4_93Reliability of one repetition maximum measurement for leg extension using an improved leg extension machineYoshikiyo KanadaHiroaki SakuraiYoshito SugiuraTomoaki AraiSoichiro KoyamaShigeo TanabeObjectives: This study examined the reliability of one repetition maximum measurement (1RM) for leg extension using an improved leg extension machine through a comparison between before and after machine improvement. Methods: Twenty-one healthy adult males were recruited. A ratchet was welded to the knee rotation axis of the leg extension machine to prevent counter rotation due to the free fall of weights. The 1RM measurement for knee extension was performed before and after machine improvement to observe changes in their reliability using the intra-class correlation coefficient (ICC). Results: After machine improvement, an intra-rater reliability of ICC(1,1)=0.99 and inter-rater reliability of ICC(2,1)=0.99 were achieved. Reliability before and after machine improvement was also high, with ICC(2,1)=0.99. Conclusions: The reliability of 1RM measurement for leg extension using an improved leg extension machine was high.https://www.jstage.jst.go.jp/article/fmj/4/4/4_2018002/_pdf/-char/enreliabilityone repetition maximum measurementleg extension machinemuscle force |
| spellingShingle | Yoshikiyo Kanada Hiroaki Sakurai Yoshito Sugiura Tomoaki Arai Soichiro Koyama Shigeo Tanabe Reliability of one repetition maximum measurement for leg extension using an improved leg extension machine Fujita Medical Journal reliability one repetition maximum measurement leg extension machine muscle force |
| title | Reliability of one repetition maximum measurement for leg extension using an improved leg extension machine |
| title_full | Reliability of one repetition maximum measurement for leg extension using an improved leg extension machine |
| title_fullStr | Reliability of one repetition maximum measurement for leg extension using an improved leg extension machine |
| title_full_unstemmed | Reliability of one repetition maximum measurement for leg extension using an improved leg extension machine |
| title_short | Reliability of one repetition maximum measurement for leg extension using an improved leg extension machine |
| title_sort | reliability of one repetition maximum measurement for leg extension using an improved leg extension machine |
| topic | reliability one repetition maximum measurement leg extension machine muscle force |
| url | https://www.jstage.jst.go.jp/article/fmj/4/4/4_2018002/_pdf/-char/en |
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