Mathematics and Society - OS X Lion Server

,,/The information gained from this activity involving muscle fatigue can be usedfor graphing, finding mean and range, and finding percent of decrease and increase.Three students are needed per group; o~e as the "muscle" person, one as thetimer, and one as the counter.The "muscle" person places the right forearm flat on a table so the back ofthe fingertips are flat on the tabletop. He/she closes and opens the right handas fast as possible until the timer says stop, being sure the fingertips touch thepalm when closed and the fingertips touch the table when open.The timer times each trial for 30 seconds and records the tally on the chart.Between the 3rd and 4th trials the "muscle" person is given a 3D-second rest period.The counter counts the number of times the fingertips touch the table, relaysthe count to the timer, and begins the count over at 1 for each trial.After the activity has been completed for the right hand, repeat the steps forthe left hand.A chart with sample data and a graph of that data are shown below.8030 SECOtJD RIGHT UTTPERIODS HAtJD HAND'70GORIGHTLEFT~1\ ,'1 72-