Gray , S R , Aird , T P , Farquharson , A J , Horgan , G W , Fisher , E , Wilson , J , Hopkins , G E , Anderson , B , Ahmad , S A , Davis , S R & Drew , J E 2017 , ' Inter-individual responses to sprint interval training, a pilot study investigating interactions with the sirtuin system ' Applied Physiology Nutrition and Metabolism / Physiologie Appliquée, Nutrition et Métabolisme .