Below is an example of how shapefiles will appear in ArcCatalog. You can also see the dBASE file (that may be associated with a shapefile). All files that have the file extensions .txt, .asc, .csv, or .tab appear in ArcCatalog as text files by default.
Variables: Intensity, Weight and Time. The amount of calories that you burn when swimming this stroke will depend a lot on the intensity that you put forth, how much you weigh, and the amount of time that you swim. The more you weigh and the harder that you swim, the higher the amount of calories you will burn doing the elementary backstroke. A 120-pound person swimming an easy pace will burn 120 to 220 calories in 30 minutes. A 200-pound person swimming at a vigorous pace will burn 200 to 400 calories in 30 minutes.
Swimming is an aerobic exercise that works large muscles groups without putting a lot of stress on your body. You can use a swimming calculator to estimate how many calories you have burned after each work out. To lose one pound, you need to burn 3500 calories. The amount of calories burned depends on the activity, the intensity the activity is performed and your weight. For example, swimming laps for an hour will burn approximately 423 calories if you are 160 pounds, 528 calories if you are 200 pounds, and 632 calories if you are 240 pounds. In comparison, the average person weighing 200 pounds will approximately burn per hour: 1  273 calories bowling. 2  273 calories ballroom dancing.