In the article titled “Integrated Wearable System for Monitoring Heart Rate and Step during Physical Activity” [1], the text appearing in the last paragraph of Section  2.5 should be corrected as follows: “A maximum value is set when the first fall signal is detected, and a minimum value is set when current input is higher than previous one.” The magnitude and unit of -axis data () from Figure (a) should be corrected, as well as the magnitude and unit of integration process data () and description of Figure (b). For Table , the header text and value in the first column should be corrected, as well as the header text in the second column.

Figure 8 and Table 1 are corrected as follows.

Table 1 
Relationship between peak-to-valley amplitude and adaptive threshold.
(a)
(a)
(b)
(b)
Figure 8 
Step signal: (a) before preprocessing and (b) peak detection.