FIGURE 6.

Canal number (N.Ca) summed over all samples within exercise and rested groups versus canal area (Ca.Ar) for canals with Ca.Ar >0.002 mm², for each sample site. Note the greater number of large canals in the rested metacarpal metaphysis (d) and the similar distributions of canal sizes in rested and exercised ribs (a). See Tables 3, 4, 5, 6 for statistical summaries and comparisons. Vertical dashed line at 0.04 mm² indicates the cut‐off value between large (resorption spaces; illustrated in Figure 5) and small (partially infilled) canals. Vertical dashed line at 0.002 mm² indicates the cut‐off value between completely infilled mature Haversian canals and closing cones. Conversion between area and diameter assuming a circle provided in (e).