Activity classification
| Activity Intensity Category | Activity/Sport |
| A=Non-weightbearing simple | Cycling, fishing from boat (seated), scuba diving, snorkelling, swimming laps |
| B=Non-weightbearing complex | Assisting someone bathing, canoe/row/kayak, scrubbing floors, golfing riding in cart, horseback riding, sled/toboggan |
| C=Low-impact simple | Hiking (carrying <20 lb), light housework, lawn mowing, ice skating (not hockey), skiing cross-country, table tennis/ping pong, walking for exercise, walking for pleasure |
| D=Low-impact complex | Aerobics class, backpacking (>20 lb), bowling, carpentry, dancing, fishing standing, golfing carrying clubs, golfing pulling clubs, home aerobics, home weights, lifting a dependent, lifting laundry/boxes, etc, painting, raking, sailing, shovelling snow, spading/digging, stairs, tennis doubles, waterskiing, weeding/planting, weight training, washing windows, home aerobics |
| E=High-impact simple | Jogging/running |
| F=High Impact Complex | Badminton, hockey, martial arts, skiing downhill, snowboarding, soccer, squash/raquetball, tennis singles, volleyball, basketball, ultimate frisbee |