1 Correction to: Sports Med https://doi.org/10.1007/s40279-017-0809-9

Page 10, Fig. 2: The filled circle labelled “3” was plotted inaccurately and should have been in the “harmful” section of the graph, as shown in the corrected version below (Fig. 2):

Fig. 2
figure 2

The effect of hypoxic dose (km h) on change in high-intensity, intermittent running performance (YYIR). Three studies have been excluded from this graph due to absence of a normoxic control group [36], risk of publication bias [40] and a particularly small sample size [39]. YYIR Yo-Yo intermittent recovery test, filled circle: hypoxic training, open circle: intermittent hypoxic exposure, filled triangle: live high, train low and high, open triangle: live high, train low, d intervention duration (days), km h kilometre hours (height above sea level in meters/1000 total number of hours of exposure)

Page 10, Fig. 3: The filled circle labelled “3” was plotted inaccurately and should have been in the “harmful” section of the graph. In addition, the open triangle labelled “5c” was inaccurately plotted and should have been between the data points labelled “2” (filled circle) and “6” (filled triangle). These corrections are shown in the corrected version below (Fig. 3):

Fig. 3
figure 3

The post-intervention longevity of the change in high-intensity, intermittent running performance (YYIR) following hypoxic exposure. Three studies have been excluded from this graph due to absence of a normoxic control group [36], risk of publication bias [40], and a particularly small sample size [39]. YYIR Yo-Yo intermittent recovery test, filled circle: hypoxic training, open circle: intermittent hypoxic exposure, filled triangle: live high, train low and high, open triangle: live high, train low, d intervention duration (days), km h kilometre hours (height above sea level in meters/1000 total number of hours of exposure)