Fig. 5. Relative bone formation rate (rBFR/BS) shows essentially the same response to 8 h of recovery as would be expected from extrapolation (grey line) to 12 h of recovery, which is the maximum recovery period possible for this experimental design (spacing the bouts more than 12 h apart would have extended the first group of four bouts (load ‘day’ 1) into the second group of four bouts (load ‘day’ 2), which began 48 h after the first group of bouts began; see Fig. 2). The curve is described by the equation: rBFR/BS=272+44.5log₂(recovery time). Values are means ± S.E.M., N=7–9 per data point.