So sánh phương pháp

	Thang đo Hoạt động Marx (MARS)	Bảng đánh giá chủ quan về khớp gối của Ủy ban Tài liệu Khớp gối Quốc tế
Lĩnh vực	Y học thể thao	Y học thể thao
Họ	Process / pipeline	Process / pipeline
Năm ra đời	2001	2001
Người khởi xướng	Russell G. Marx, T. J. Stump, E. C. Jones, T. L. Wickiewicz, R. F. Warren	International Knee Documentation Committee (IKDC)
Loại	Patient self-report activity level	Patient self-report
Công trình gốc	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.	Irrgang JJ, Anderson AF, Boyle JB, et al. Development and validation of the International Knee Documentation Committee Subjective Knee Form. Am J Sports Med. 2001;29(5):600-613.
Tên gọi khác	MARS, Marx Activity Scale	IKDC, IKDC-SK
Liên quan	4	5
Tóm tắt	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 IKDC Subjective Knee Form is an 18-item patient self-report instrument that measures knee function and symptoms in individuals with various knee conditions. Developed by the International Knee Documentation Committee in 2001 and published in the American Journal of Sports Medicine, it has become the gold standard for assessing knee-specific outcomes across diverse populations, from athletes returning to sport after anterior cruciate ligament injury to patients with osteoarthritis or meniscal pathology.