Correction to: Heart and Vessels https://doi.org/10.1007/s00380-018-1120-x

In the original publication of the article, the unit of hand in Fig. 2 was wrongly given as “N/kg” instead of “kg”.

This error has been rectified and the correct figure is provided here.

Fig. 2
figure 2

a The time course of brain natriuretic peptide (BNP) levels and body weight. Measurements were performed at the start of exercise training, the start of high-intensity interval training (HIIT), and the end of HIIT. The mean ± standard deviation values were plotted in body weight and median with the 25th to 75th percentiles values were plotted in the level of BNP. b The time course of hand grip strength and knee extensor strength. The value of knee extensor strength was standardized by the body weight. Measurements were performed at the start of exercise training, the start of HIIT, and the end of HIIT. Mean ± standard deviation values were plotted

The original article was corrected.