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. Author manuscript; available in PMC: 2019 Feb 1.
Published in final edited form as: J Orthop Res. 2017 Oct 9;36(2):682–691. doi: 10.1002/jor.23727

Table 2.

Periosteal (Ps) bone formation indices. Values are mean ± SD.

Group n Cycles Strain (με) Weeks Days/Week Side sLS/BS (%) dLS/BS (%) MS/BS (%) MAR (um/day) BFR/BS (um/day) Incidence Wo.B
1 4 1200 1000 2 5 Control 11.2 ± 6.2 1.4 ± 1.8 7 ± 4 1.0 ± 0.5 0.1 ± 0.1 0
Loaded 19.1 ± 12.2* 12.8 ± 13 22.4 ± 13.1 1.4 ± 0.5 0.4 ± 0.2* 0
2 6 1200 1400 2 5 Control 20.6 ± 10.6 0.5 ± 1.3 11 ± 6.3 0.8 ± 0.2 0.1 ± 0 0
Loaded 32.7 ± 7.5* 21.3 ± 21.7* 37.7 ± 21.1* 1.4 ± 0.3 0.6 ± 0.4 0
3 8 1200 1800 2 5 Control 15.3 ± 9.4 0.9 ± 0.8 8.6 ± 4.7 0.8 ± 0.3 0.1 ± 0 0
Loaded 28.5 ± 9.5* 38.5 ± 17.9* 53.7 ± 15.3* 1.5 ± 0.4* 0.8 ± 0.3* 1
4 7 1200 2200 2 5 Control 15.7 ± 7.7 1.0 ± 1.1 8.8± 4.3 1.0 ± 0.2 0.1 ± 0 0
Loaded 23.5 ± 13.2* 48 ± 11.5* 63.5 ± 10.4* 1.7 ± 0.5 1.0 ± 0.3* 3
5 8 300 1800 2 5 Control 18.2 ± 7.9 1.1 ± 0.8 10.2 ± 4.4 0.7 ± 0.2 0.1 ± 0 0
Loaded 23.7 ± 10.2 48.3 ± 29* 62.2 ± 26.9* 1.8 ± 0.7* 1.2 ± 0.8* 2
6 9 60 1800 2 5 Control 28.5 ± 21.8 2.9 ± 1.9 17.1 ± 12.4 1.0 ± 0.4 0.2 ± 0.2 0
Loaded 24.5 ± 5.7 42.9 ± 22* 55.2 ± 20.2* 1.4 ± 0.5* 0.8 ± 0.5* 0
7 9 60 1800 1 5 Control 16.0 ± 9.1 3.2 ± 5.9 11.1 ± 9.3 1.1 ± 0.3 0.1 ± 0.1 0
Loaded 34.4 ± 12.6* 33.8 ± 7.5* 53.3 ± 8.7* 1.7 ± 0.3* 0.9 ± 0.3* 1
8 9 60 1800 2 3 Control 19.2± 9.9 3.1 ± 2.5 12.7 ± 6.8 0.9 ± 0.1 0.1 ± 0.1 0
Loaded 35.0 ± 13.8* 10.2 ± 7.9* 27.7 ± 10.2* 1.0 ± 0.2 0.3 ± 0.2* 0
*

Loaded different from Control, p < 0.05