1351. Boating, Power, Passenger, Light 1352. Walking, Backwards, 3.5 mph, Level 1353. Boating, Power, Driving 1354. Walking, for Exercise, with Ski Poles, Nordic Walking, Uphill 1355. Walking, Backwards, 3.5 mph, Uphill, 5% Grade 1356. Recreational Walk, Work Break 1357. Walking, to and from an Outhouse 1358. Walking, to Work or School 1359. Walking, Normal Pace, Plowed Field or Sand 1360. Walking, for Exercise, 3.5 to 4 mph, with Ski Poles, Nordic Walking, Level, Moderate Pace 1361. Nordic Walking, for Exercise, 5.0 mph, with Ski Poles, Level, Fast Pace 1362. Walking, 5.0 mph, uphill, 3% grade 1363. Walking, Grass Track 1364. Walking, 2.8 to 3.2 mph, level, moderate pace, firm surface 1365. Walking, 4.0 mph, level, firm surface, very brisk pace 1366. Walking, 4.5 mph, level, firm surface, very, very brisk 1367. Walking, 2.5 mph, level, firm surface 1368. Walking, 2.9 to 3.5 mph, uphill, 6% to 15% grade 1369. Walking, 2.9 to 3.5 mph, uphill, 1 to 5% grade 1370. Walking, 2.5 mph, downhill 1371. Walking, 5.0 mph, Level, Firm Surface 1372. Walking from Home to Car or Bus and Back, from Car or Bus to Destinations, from Car or Bus to and from Worksite 1373. Walking, 3.5 mph, level, brisk, firm surface, walking for exercise 1374. Walking, 2.0 mph, level, slow pace, firm surface 1375. Walking to Neighbor's House or Family's House for Social Reasons 1376. Walking for Pleasure 1377. Pushing or Pulling Stroller with Child or Walking with Children, 2.5 to 3.1 mph 1378. Walking, Household 1379. Slow Strolling, less than 2.0 mph, Level 1380. Pushing an Unoccupied Wheelchair