Are There Health Benefits to Being A Vegetarian? The perception of the effects of a vegetarian diet on health has gone through a transformation in the last 20 years. In 1980 the American Dietetic Association (ADA) had serious doubts about whether a vegetarian diet was nutritionally sound [1].
Step 1. ENTER THE TRACK SIZE (i.e., the distance covered when completing one lap - normally in Lane 1) and select the unit of measure. most outdoor tracks are either 400 meters or 440 yards (4 laps to a mile) most indoor tracks are either 200 meters or 220 yards (8 laps to a mile) See NOTE 3 for determining track size. Also note that a very small number of tracks use a lane other than Lane 1 to define the track size (see NOTE 4).
Most of the time the field is grass, but sometimes fake grass called artificial turf is used. Because the lines on the field look like a grid, the nickname for the field is the gridiron. Dimensions. The main playing area of the field is 100 yards (300 feet) long by 53 1/3 yards (160 feet) wide. End Zones. At each end of the field is an end zone. This area extends the field another 10 yards on each side. The line between the field and the end zone is the goal line. In order to score a touchdown some portion of the ball must cross the goal line in the possession of an offensive player.