مقایسهٔ روش‌ها

	مقیاس رتبه‌بندی فعالیت مارکس (Marx Activity Rating Scale)	مقیاس عملکرد اندام تحتانی
حوزه	طب ورزشی	طب ورزشی
خانواده	Process / pipeline	Process / pipeline
سال پیدایش	2001	1999
پدیدآور	Russell G. Marx, T. J. Stump, E. C. Jones, T. L. Wickiewicz, R. F. Warren	Jill M. Binkley, Paul W. Stratford, Sheila A. Lott, Duane L. Riddle
نوع	Patient self-report activity level	Patient self-report
منبع بنیادین	Marx RG, Stump TJ, Jones EC, Wickiewicz TL, Warren RF. Development and evaluation of an activity rating scale for disorders of the knee. Am J Sports Med. 2001;29(2):213-218.	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.
نام‌های دیگر	MARS, Marx Activity Scale	LEFS
مرتبط	4	4
خلاصه	The Marx Activity Rating Scale (MARS) is a 4-item patient-reported instrument that quantifies the frequency of high-demand athletic activities performed in the past four weeks. Developed by Marx and colleagues in 2001 and published in the American Journal of Sports Medicine, the MARS focuses specifically on quantifying participation in running, cutting, decelerating, and pivoting—the high-impact, multi-directional activities that demand the most from the knee and ankle. The MARS is widely used in orthopedic research to classify patients by activity level and to assess return to activity following surgery.	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.