Table 3 Effect of overload on resting and maximal heart rate
CategoriesnWMD (95% CI), beats/minutep Value
Rest
    ⩽2 weeks894.49 (−2.22 to 6.75)0.0001
    >2 weeks1550.27 (−1.16 to 1.96)0.62
    Overall effect2441.99 (0.58 to 3.41)0.006
Submaximal exercise
    ⩽2 weeks61−1.25 (−4.87 to 1.58)0.39
    >2 weeks132−3.59 (−5.87 to −1.31)0.002
    Overall effect193−2.61 (−4.39 to −0.84)0.004
Maximal exercise
    ⩽2 weeks26−7.47 (−12.21 to −2.74)0.002
    >2 weeks163−3.62 (−5.60 to −1.64)0.0003
    Overall effect189−4.19 (−6.02 to −2.36)<0.00001
  • HR, heart rate; HRV, heart rate variability; HF, high frequency; LF, low frequency; WMD, weighted mean difference.