Using heart rate as an indicator, the youngsters establish the maximum steepness for a footpath.
- Site: Choose a hillside with a variety of slopes ranging from gentle to very steep.
- Safety: No special considerations
- Prep: Construct a slope-measuring device, locate, and mark off three trails of different slopes (see the “Measuring Slope” equipment card).
- Materials: Data board, marker, 5 or 10 meter long rope or twine, 6-8 flags, index cards, pencil, watch with second hand, slope measuring device
What is the maximum slope for a trail that hikers can use comfortably?
- Pulse rate can be used as an indicator of physical exertion.
- A resting pulse rate is the rate when a person is not exerting themselves.
- An excessive-exertion pulse rate is the rate after vigorous exercise.
Slope is an important factor to consider when designing a trail on a hillside. In this activity, the youngsters use their pulse rates as a measure of the effort expended in walking on different slopes. By checking their pulse rates after walking up various slopes, the group decides on an appropriate maximum slope for trails.
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