@article{Ainsworth2000,
author = {Ainsworth, B.E. and Haskell, W.L. and Whitt, M.C. and Irwin, M.L. and Swartz, A.M. and Strath, S.J. and Leon, A.S.},
title= {Compendium of physical activities: An update of activity codes and MET intensities},
year = {2000},
volume = {32},
number = {9; suppl. 1},
pages = {S498--S504},
}