Energy Expenditure during Sexual Activity in Young Healthy Couples Frappier, Julie ; Toupin, Isabelle ; Levy, Joseph J. ; Aubertin-Leheudre, Mylene ; Karelis, Antony D. Abstract Publication: PLoS ONE Pub Date: October 2013 DOI: 10.1371/journal.pone.0079342 Bibcode: 2013PLoSO...879342F