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. Author manuscript; available in PMC: 2014 May 1.
Published in final edited form as: Arch Phys Med Rehabil. 2012 Dec 28;94(5):829–838. doi: 10.1016/j.apmr.2012.12.015

Table 2.

Summary of results of outcome variables

Variable Group Pretest Value Mean ± SD Posttest Value Mean ± SD Mean Within-Group Time Difference (95% CI) Mean Between-Group Difference, Change Over Time (95% CI) Group × Time Interaction P
Primary variables
 6MWD (m) WB 378±72 404±78 27 (11 to 42)
NWB 418±106 417±112 −2 (−18 to 14) 29 (6 to 51) .014
 Average daily step WB 4909±1398 5593±1449 685 (−29 to 1399)
 count (steps) NWB 6571±2186 6078±2023 −493 (−1232 to 246) 1178 (150 to 2205) .026
Secondary variables
 Overall perception, WB 73.0±21.6 83.7±12.5 10.7 (1.8 to 19.5)
 FAAM (0–100) (%) NWB 79.5±16.8 85.2±13.7 5.7 (−3.8 to 15.2) 5 (−8 to 17.9) NS
 Beck Depression WB 7.7±5.8 5.8±4.8 −1.9 (−4.1 to 0.3)
 Inventory (0−63) NWB 7.9±7.1 5.3±3.8 −2.6 (−4.9 to −0.4) 0.8 (−2.4 to 4.0) NS
 Physical Performance WB 28.1±4.6 29.5±4.9 1.4 (0.04 to 2.8)
 Test (9 items; 36 max) NWB 27.1±4.6 28.7±4.2 1.6 (0.2 to 3.0) −0.2 (−2.1 to 1.8) NS
 Glycated hemoglobin WB 6.9±1.3 7.0±1.3 0.1 (−0.2 to 0.4)
 (HbA1c) (%) NWB 7.8±2.1 7.4±1.6 −0.4 (−0.8 to −0.1) 0.5 (0.03 to 0.96) .037
 Fat free mass WB 63.5±11.6 63.3±11.5 −0.2 (−1.2 to 0.8)
 DXA (kg) NWB 57.3±11.6 57.9±11.9 0.6 (−0.5 to 1.6) −0.8 (−2.2 to 0.6) NS
 Plantar flexion WB 38.0±20.3 42.8±24.2 4.8 (−2.6 to 12.1)
 Peak torque (Nm) NWB 38.4±12.6 39.1±12.1 0.7 (−6.9 to 8.2) 4.1 (−6.5 to 14.6) NS
 Dorsiflexion WB 3.6±6.9 7.7±4.2 4.1 (1.7 to 6.5)
 Range of motion (deg) NWB 3.1±4.7 5.5±5.2 2.4 (−0.1 to 4.9) 1.7 (−1.8 to 5.2) NS

Abbreviations: DXA, dual-energy x-ray absorptiometry; FAAM, Foot and Ankle Ability Measure; max, maximum; NS, not significant.