Fig. 5

The relationship between oxygen uptake (\(\dot{\rm {V}} {\rm{O_2}}/W\)), heart rate (HR), and trait anxiety. a Linear plot of \(\dot{\rm {V}} {\rm{O_2}}/W\) and trait scores. No significant correlation was observed (ρ = 0.209). b Comparison of \(\dot{\rm {V}} {\rm{O_2}}/W\) in HT and in LT. No significant difference was observed in \(\dot{\rm {V}} {\rm{O_2}}/W\). c Linear plots of HR and trait scores. No significant correlation was observed (ρ = −0.047). d Comparison of HR in HT and in LT. No significant difference was observed in HR. Median \(\dot{\rm {V}} {\rm{O_2}}/W\) and HR in HT and LT were indicated with horizontal bars. The vertical bars indicate the range and the horizontal boundaries of the boxes represent the first and third quartiles