विधियों की तुलना करें

	लोअर एक्सट्रीमिटी फंक्शनल स्केल	परिवर्तन पैमाने का वैश्विक मूल्यांकन
क्षेत्र	खेल चिकित्सा	खेल चिकित्सा
परिवार	Process / pipeline	Process / pipeline
उद्भव वर्ष	1999	1989
प्रवर्तक	Jill M. Binkley, Paul W. Stratford, Sheila A. Lott, Duane L. Riddle	Ruben Jaeschke, Jack Singer, Gordon H. Guyatt
प्रकार	Patient self-report	Patient global perception
मौलिक स्रोत	Binkley JM, Stratford PW, Lott SA, Riddle DL. The Lower Extremity Functional Scale (LEFS): scale development, measurement properties, and clinical application. Phys Ther. 1999;79(4):371-383.	Jaeschke R, Singer J, Guyatt GH. Measurement of health status. Ascertaining the minimal clinically important difference. Control Clin Trials. 1989;10(4):407-415.
उपनाम	LEFS	GRC, Global Rating of Change
संबंधित	4	4
सारांश	The Lower Extremity Functional Scale (LEFS) is a 20-item patient self-report instrument designed to assess functional limitations in individuals with lower extremity musculoskeletal disorders. Developed by Binkley, Stratford, Lott, and Riddle in 1999 and published in Physical Therapy, the LEFS provides a validated, general lower-extremity outcome measure applicable across diverse pathologies (knee, ankle, hip, foot injuries and conditions), making it particularly valuable in physical therapy and rehabilitation settings.	The Global Rating of Change (GRC) Scale is a single-item, self-report outcome measure that asks patients to rate the overall change in their condition since baseline assessment. Developed by Jaeschke, Singer, and Guyatt in 1989 and published in Controlled Clinical Trials, the GRC Scale has become a fundamental method for anchor-based interpretation of change scores on clinical outcome measures, enabling clinicians and researchers to determine the minimal clinically important difference (MCID) in standardized scales.