Stretching

Sex,Age,Initial,Final
Female,19,17.0,19.8
Female,22,5.5,8.2
Female,20,1.3,5.5
Female,16,12.8,15.5
Female,44,2.0,4.8
Female,42,4.5,7.3
Female,23,21.2,22.8
Female,22,11.2,13.3
Female,21,29.1,30.0
Male,53,13.6,15.8
Male,23,26.1,27.2
Male,45,2.1,9.1
Male,37,2.3,7.3
Male,38,11.8,14.6
Male,30,3.2,5.9
Male,38,15.5,17.9
Male,29,9.1,11.2
Male,26,16.3,17.5