p-ISSN: 1300-0551
e-ISSN: 2587-1498

Sabriye Ercan1, Esma Arslan1, Cem Çetin1, Zeliha Başkurt2, Ferdi Başkurt2, Mukadder İnci Başer Kolcu3, Giray Kolcu3

1Sports Medicine Department, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
2Physiotherapy and Rehabilitation, Faculty of Health Sciences, Suleyman Demirel University, Isparta, Turkey
3Department of Medical Education and Informatics, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey

Keywords: Movement assessment, jump, landing


Objective: The purpose of this study is to conduct the validity and reliability study of Turkish version of the Landing Error Scoring System-Real Time (LESS-RT) and submit it for the use of relevant researchers.

Material and Methods: The study was designed as a validity study in the quantitative research design. The ten-item directive had been translated into Turkish. After the translation, an evaluation was performed in a group of 13 participants to determine comprehensibility, language and cultural conformity assessment and to receive expert opinion. Receiving the feedback with the completion of the evaluation, the Turkish version was finalized and submitted for implementation. Sixty-two participants (%40.3 male, %59.7 female) were subjected to the jump test in order to evaluate the Turkish version by two raters. The video recordings were obtained from the front and side during the jumps.

Results: The mean Item-Content Validity Index (I-CVI) was 0.91 (lowest 0.84; highest 1.00). The lowest expert proportion relevant for the scale item (S-CVI) was 0.80 and the highest was 1.00 and the Scale-Level Index/Average (S-CVI / Ave) value was 0.91. There are no differences between the first rater’s (test: 6.84 ± 1.85; retest: 6.94 ± 1.93; p˃ 0.05) and the second rater’s (test: 6.37 ± 1.46; retest: 6.37 ± 1.72; p˃ 0.05) error scores (p˃ 0.05). The reliability level was found to be good both in intra-rater (Rater1 ICC: 0.81, Rater2 ICC: 0.71) and inter-rater (Rater1,2 ICC: 0.73).

Conclusion: The validity and reliability of the LESS-RT in Turkish were accomplished. Thus, a practical system that facilitates the detection of landing errors is presented for the use of Turkish researchers and health professionals.

Cite this article as: Ercan S, Arslan E, Cetin C, Baskurt Z, Baskurt F, Baser Kolcu MI, et al. The validity and reliability study of Turkish version of the Landing Error Scoring System-Real Time. Turk J Sports Med. 2021;56(1).20-27.; http://dx.doi.org/10.47447/tjsm.0465

Conflict of Interest

The authors declared no conflicts of interest with respect to authorship and/or publication of the article.

Financial Disclosure

The authors received no financial support for the research and/or publication of this article.