Figure 6.

Boxplot of changes in urinary Ca isotopic composition obtained during our study. For comparison, the data of Skulan et al. (2007); Morgan et al. (2012), and Channon et al. (2015) are also shown. Overall, the changes observed in the study are in good agreement with those found in previous studies. A small but statistically insignificant difference between the control group (C) and the KHCO3 supplemented group (S) can be seen. Letters for the Skulan et al. dataset correspond to: (C) control group, (E) exercise group, and (A) alendronate supplemented group.