The inter-tester reliability of the squeeze and bent-knee-fall-out tests in elite academy football players

Document Type

Journal Article

Publication Title

Physical Therapy in Sport

ISSN

1466853X

Volume

34

First Page

8

Last Page

13

Publisher

Churchill Livingstone

School

School of Medical and Health Sciences

RAS ID

28252

Comments

O'Brien, J., Santner, E., & Finch, C. F. (2018). The inter-tester reliability of the squeeze and bent-knee-fall-out tests in elite academy football players. Physical Therapy in Sport, 34, 8-13. Available here

Abstract

Objectives

To evaluate the inter-tester reliability of two common tests for assessing hip and groin injuries, using a protocol closely reflecting normal clinical conditions.

Design

Same-session, single-trial, inter-tester reliability study.

Setting

Elite European football academy.

Participants

Two testers and fifty-eight football players aged 14–21 years.

Main outcome measures

Inter-tester reliability of the squeeze (in approximately 45° hip flexion) and bent-knee-fall-out (BKFO) tests, evaluated with intraclass correlation coefficients (two-way mixed, single measure) and minimal detectable change.

Results

Both tests demonstrated excellent inter-tester reliability. The intraclass correlation coefficients were 0.92 (95% CI: 0.87–0.95) for the squeeze test, 0.91 (95% CI: 0.67–0.96) for the BKFO test on the right side and 0.92 (95% CI 0.87–0.95) for BKFO on the left side. The minimal detectable changes were 7.21  mmHg for the squeeze test, 0.95 cm and 0.75 cm for BKFO (right) and BKFO (left) respectively.

Conclusion

The squeeze and the BKFO tests demonstrated excellent inter-tester reliability in elite academy football players, using a protocol reflective of normal clinical conditions.

DOI

10.1016/j.ptsp.2018.08.004

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