“…In addition, the studies by Abbott et al 28 , Beato et al 32 , Curtis et al 33 , Fitzpatrick et al 29 , Jaspers et al 34 , Knight et al 20 , Madison et al 19 , Rago et al 13 , Ramos et al 27 and Scott et and Lovell 2 presented some internal load monitoring. The studies by Fitzpatrick et al 26 , Madison et al 16 , and Scott and Lovell et al 2 used heart rate (HR) records as the only control of the internal load.…”