Corresponding Author:

1Lecturer, Department of Physiotherapy, School of Health Sciences, KPJ Healthcare University College, Nilai, Malaysia. Mail id:


2 Physiotherapist, Department of Physiotherapy, KPJ Selangor Specialist Hospital, Selangor, Malaysia.

3Professor, Faculty of Physiotherapy, Dr.MGR Deemed to be University, Chennai, Tamilnadu, India.


Purpose: Intra-rater reliability refers to the consistency of measurements demonstrated in similar assessment situation at two different times by the same examiner which also refers to test-retest. Inter-rater reliability test denotes the consistency of assessments performed by two different examiners. The objective of the study was to determine the inter-rater and intra-rater reliability between experienced and non-experienced physiotherapist on 90-90 active knee extension test using goniometer among healthy college students.

Methodology: This study method is a reliability design in determining hamstring flexibility among 42 young healthy college students of School of Physiotherapy, KPJ Healthcare University College, Nilai, Malaysia. The 90-90 active knee extension was performed using goniometry. Four physiotherapists involved in the study consist of two non-experienced physiotherapist and two experienced physiotherapists.

Results: The mean and standard deviation of active knee extension 90-90 Active Knee extension test among two experienced physiotherapist were 19.830(SD= 10.21) and 43.14 (SD= 47.05). Mean and standard deviation for two non-experienced physiotherapist value were 21.21(SD 11.14) and 42.55 (47.66).

Conclusion: The conclusion of the inter-rater and intra-rater evaluation between experienced and non- experienced physiotherapist showed that goniometer is a reliable tool to evaluate hamstring flexibility among healthy college students.

Keywords: Experienced, Non-Experienced, Physiotherapist, Goniometer, AKE, Inter-rater, Intra-rater

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