Fig. 5

a Influence of lockdown on perceived effort of cardiac rehabilitation in our sample. Differences between pre- and post-lockdown were analysed by repeated measures Wilcoxon signed ranked tests, p < 0.05. b Individual changes in perception of effort. Simple dashed lines indicate increased perceived effort post-lockdown; dot-dashed lines indicate decreased perceived effort post-lockdown; solid lines indicate no-change in perceived effort post-lockdown