After the control tests , participants were randomly assigned to either a CR ( 20 g day ( -1 ) for 7 days followed by 5 g day ( -1 ) throughout the study ) or a placebo ( PL-dextrose ) group , and then completed 4 experimental sessions , consisting of a 5-km run on a treadmill either continuously ( 90 % ATv ) or intermittently ( 1:1 min at vVO2max ) followed by either a leg - or bench-press SE/1RM test .