Intra- and inter-rater reliability and validity of the tandem gait test for the assessment of dynamic gait balance

Soichiro Koyama, Shigeo Tanabe, Norihide Itoh, Eiichi Saito, Kazuya Takeda, Satoshi Hirano, Kei Ohtsuka, Masahiko Mukaino, Ryuzo Yanohara, Hiroaki Sakurai, Yoshikiyo Kanada

Research output: Contribution to journalArticle

Abstract

Purpose: To establish the within-day and between-day intra-rater reliability, inter-rater reliability, validity and systematic errors of the tandem gait test (TGT). Materials and methods: Thirty participants performed the TGT and the timed up and go test (TUG) twice on the first day. Three independent raters measured these tests. After two weeks, the protocol was repeated by one tester to assess between-day reliability. The within-day and between-day intra-rater reliability was estimated by intraclass correlation coefficient (ICC) and Bland–Altman plots to assess systematic errors associated with the learning effect. Inter-rater reliability was estimated by ICC and minimum detectable change at 95% confidence. Concurrent validity was assessed by examination of the correlation between TGT and TUG using Pearson’s correlation coefficient. Results: Within-day and between-day intra-rater reliability were good (ICC > 0.9 and ICC > 0.7). The Bland–Altman plots showed systematic error in the between-day measurements. Inter-rater reliability was supported by strong values for ICC (ICC > 0.9). The Pearson’s correlation coefficient between the TGT and TUG showed a significant positive correlation (r > 0.67, p <.001). Conclusions: These results show that the learning effect of the TGT might be a considerable factor when interpreting follow-up measurements after a few days.

Original languageEnglish
Pages (from-to)135-140
Number of pages6
JournalEuropean Journal of Physiotherapy
Volume20
Issue number3
DOIs
Publication statusPublished - 03-07-2018

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Gait
Reproducibility of Results
Learning

All Science Journal Classification (ASJC) codes

  • Physical Therapy, Sports Therapy and Rehabilitation

Cite this

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title = "Intra- and inter-rater reliability and validity of the tandem gait test for the assessment of dynamic gait balance",
abstract = "Purpose: To establish the within-day and between-day intra-rater reliability, inter-rater reliability, validity and systematic errors of the tandem gait test (TGT). Materials and methods: Thirty participants performed the TGT and the timed up and go test (TUG) twice on the first day. Three independent raters measured these tests. After two weeks, the protocol was repeated by one tester to assess between-day reliability. The within-day and between-day intra-rater reliability was estimated by intraclass correlation coefficient (ICC) and Bland–Altman plots to assess systematic errors associated with the learning effect. Inter-rater reliability was estimated by ICC and minimum detectable change at 95{\%} confidence. Concurrent validity was assessed by examination of the correlation between TGT and TUG using Pearson’s correlation coefficient. Results: Within-day and between-day intra-rater reliability were good (ICC > 0.9 and ICC > 0.7). The Bland–Altman plots showed systematic error in the between-day measurements. Inter-rater reliability was supported by strong values for ICC (ICC > 0.9). The Pearson’s correlation coefficient between the TGT and TUG showed a significant positive correlation (r > 0.67, p <.001). Conclusions: These results show that the learning effect of the TGT might be a considerable factor when interpreting follow-up measurements after a few days.",
author = "Soichiro Koyama and Shigeo Tanabe and Norihide Itoh and Eiichi Saito and Kazuya Takeda and Satoshi Hirano and Kei Ohtsuka and Masahiko Mukaino and Ryuzo Yanohara and Hiroaki Sakurai and Yoshikiyo Kanada",
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Intra- and inter-rater reliability and validity of the tandem gait test for the assessment of dynamic gait balance. / Koyama, Soichiro; Tanabe, Shigeo; Itoh, Norihide; Saito, Eiichi; Takeda, Kazuya; Hirano, Satoshi; Ohtsuka, Kei; Mukaino, Masahiko; Yanohara, Ryuzo; Sakurai, Hiroaki; Kanada, Yoshikiyo.

In: European Journal of Physiotherapy, Vol. 20, No. 3, 03.07.2018, p. 135-140.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Intra- and inter-rater reliability and validity of the tandem gait test for the assessment of dynamic gait balance

AU - Koyama, Soichiro

AU - Tanabe, Shigeo

AU - Itoh, Norihide

AU - Saito, Eiichi

AU - Takeda, Kazuya

AU - Hirano, Satoshi

AU - Ohtsuka, Kei

AU - Mukaino, Masahiko

AU - Yanohara, Ryuzo

AU - Sakurai, Hiroaki

AU - Kanada, Yoshikiyo

PY - 2018/7/3

Y1 - 2018/7/3

N2 - Purpose: To establish the within-day and between-day intra-rater reliability, inter-rater reliability, validity and systematic errors of the tandem gait test (TGT). Materials and methods: Thirty participants performed the TGT and the timed up and go test (TUG) twice on the first day. Three independent raters measured these tests. After two weeks, the protocol was repeated by one tester to assess between-day reliability. The within-day and between-day intra-rater reliability was estimated by intraclass correlation coefficient (ICC) and Bland–Altman plots to assess systematic errors associated with the learning effect. Inter-rater reliability was estimated by ICC and minimum detectable change at 95% confidence. Concurrent validity was assessed by examination of the correlation between TGT and TUG using Pearson’s correlation coefficient. Results: Within-day and between-day intra-rater reliability were good (ICC > 0.9 and ICC > 0.7). The Bland–Altman plots showed systematic error in the between-day measurements. Inter-rater reliability was supported by strong values for ICC (ICC > 0.9). The Pearson’s correlation coefficient between the TGT and TUG showed a significant positive correlation (r > 0.67, p <.001). Conclusions: These results show that the learning effect of the TGT might be a considerable factor when interpreting follow-up measurements after a few days.

AB - Purpose: To establish the within-day and between-day intra-rater reliability, inter-rater reliability, validity and systematic errors of the tandem gait test (TGT). Materials and methods: Thirty participants performed the TGT and the timed up and go test (TUG) twice on the first day. Three independent raters measured these tests. After two weeks, the protocol was repeated by one tester to assess between-day reliability. The within-day and between-day intra-rater reliability was estimated by intraclass correlation coefficient (ICC) and Bland–Altman plots to assess systematic errors associated with the learning effect. Inter-rater reliability was estimated by ICC and minimum detectable change at 95% confidence. Concurrent validity was assessed by examination of the correlation between TGT and TUG using Pearson’s correlation coefficient. Results: Within-day and between-day intra-rater reliability were good (ICC > 0.9 and ICC > 0.7). The Bland–Altman plots showed systematic error in the between-day measurements. Inter-rater reliability was supported by strong values for ICC (ICC > 0.9). The Pearson’s correlation coefficient between the TGT and TUG showed a significant positive correlation (r > 0.67, p <.001). Conclusions: These results show that the learning effect of the TGT might be a considerable factor when interpreting follow-up measurements after a few days.

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