Table 2

Tools for activity assessment

Assessment toolDescription
IKDC-SKF19
  • 4—Very strenuous activities like jumping or pivoting as in basketball or soccer

  • 3—Strenuous activities like heavy physical work, skiing or tennis

  • 2—Moderate activities like moderate physical work, running or jogging

  • 1—Light activities like walking, housework or yard work

  • 0—Unable to perform any of the above activities due to knee

Tegner Activity Scale18
  • Level 10 Competitive sports—soccer, football, rugby (national elite)

  • Level 9 Competitive sports—soccer, football, rugby (lower divisions), ice hockey, wrestling, gymnastics, basketball

  • Level 8 Competitive sports—racquetball or bandy, squash or badminton, track and field athletics (jumping, etc), down-hill skiing

  • Level 7 Competitive sports—tennis, running, motorcars speedway, handball. Recreational sports—soccer, football, rugby, bandy, ice hockey, basketball, squash, racquetball, running

  • Level 6 Recreational sports—tennis and badminton, handball, racquetball, down-hill skiing, jogging at least 5 times per week

  • Level 5 Work—heavy labour (construction, etc). Competitive sports—cycling, cross-country skiing. Recreational sports—jogging on uneven ground at least twice weekly

  • Level 4 Work—moderately heavy labour (eg, truck driving, etc)

  • Level 3 Work—light labour (nursing, etc)

  • Level 2 Work—light labour. Walking on uneven ground possible, but impossible to backpack or hike

  • Level 1 Work—sedentary (secretarial, etc)

  • Level 0 Sick leave or disability pension because of knee problems

Marx Activity Rating Scale17 Patient is asked how often the activities running, cutting, deceleration and pivoting have been performed during the last year in your healthiest and most active state. Each activity is scored on a 0–4 scale as follows:
  • 0—Less than one time in a month

  • 1—One time in a month

  • 2—One time in a week

  • 3—Two to three times in a week

  • 4—Four or more times in a week

Cincinnati Sports Activity Scale24 Divided into four major levels, with subcategories.
  • Level I (participates 4–7 days/week)

  • Level II (participates 1–3 days/week)

  • Level III (participates 1–3 times/month)

  • Level IV (no sports)


Subcategories for level I–III (5-point decline for every step downwards, starting from 100 p):
  • Jumping, hard pivoting, cutting (basketball, volleyball, football, gymnastics, soccer)

  • Running, twisting, turning (tennis, racquetball, handball, ice hockey, field hockey, skiing, wrestling

  • No running, twisting jumping (cycling, swimming)


Level IV with the following subcategories and points for each:
  • 40—Activities of daily living without problems

  • 20—Moderate problems with activities of daily living

  • 0—Severe problems with activities of daily living; on crutches, full disability

IKDC Knee Ligament Standard Evaluation Form20
  • Level I—jumping, pivoting, hard cutting, football, soccer

  • Level II—heavy manual work, skiing, tennis

  • Level III—light manual work, jogging, running

  • Level IV—activities of daily living, sedentary work

  • IKDC, International Knee Documentation Committee; IKDC-SKF, International Knee Documentation Committee Subjective Knee Form.