571. Pushing or Pulling Stroller with Child or Walking with Children, 2.5 to 3.1 mph 572. Using Balls 573. Slow Strolling, less than 2.0 mph, Level 574. Walking, 2.8 to 3.2 mph, level, moderate pace, firm surface 575. Walking, Grass Track 576. Boating, Power, Driving 577. Boating, Power, Passenger, Light 578. Canoeing, rowing, 2.0-3.9 mph, light effort 579. Skindiving, fast 580. Surfing, Body or Board, General 581. Skindiving, Moderate 582. Stand-Up Paddle Board 583. Swimming, Backstroke, Recreational 584. Butterfly Swimming, General 585. Swimming, Crawl, Medium Speed, ~50 Yards/Minute, Vigorous Effort 586. Water Aerobics, Water Gymnastics 587. Ice Fishing, Sitting 588. Dog Sledding, Mushing 589. Skiing, cross country, 4.0-4.9 mph, moderate speed and effort, general 590. Skiing, downhill, alpine or snowboarding, moderate effort, general, active time only 591. Sledding, Tobogganing, Bobsledding, Luge 592. Hand Snow Shoveling, Moderate Effort 593. Sitting in Church, Talking or Singing, Attending a Ceremony, Sitting, Active Participation 594. Walking, 3.5 mph, Brisk Speed, Not Carrying Anything 595. Eating at Church 596. Bicycling 14-15.9 mph, racing or recreational, fast, vigorous effort 597. Weight Lifting (Free Weights, Cybex, Nautilus, or Universal), Power Lifting or Body Building: Vigorous Effort. Resistance and Repetitions are Specific to Muscular Endurance or Strength. Record Only the Time Spent Moving Weights. 598. Stationary Rowing, 150 W, Heavy Load 599. Stationary Rowing, 100 W, Medium Load 600. Aerobic, Ballet or Modern Dance