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. Author manuscript; available in PMC: 2013 Dec 1.
Published in final edited form as: Arthritis Care Res (Hoboken). 2012 Dec;64(12):1895–1902. doi: 10.1002/acr.21783

Table 3.

Total and Sex-Specific Spearman Rank Correlation Coefficients of COP-based Static Balance Measures with Clinical Balance Measures: The MOBILIZE Boston Study

All** Men** Women**

SPPB Berg 1-Leg (Sec) SPPB Berg 1-Leg (Sec) SPPB Berg 1-Leg (Sec)
Static Balance Measures1
1. Mediolateral Avg Sway (mm) −0.18 −0.28 −0.29 −0.21 −0.33 −0.37 −0.22 −0.31 −0.29
2. Mediolateral RMS (mm) −0.18 −0.28 −0.28 −0.21 −0.33 −0.36 −0.22 −0.30 −0.28
3. Area Ellipse Sway (mm2) −0.16 −0.26 −0.27 −0.24 −0.37 −0.39 −0.20 −0.27 −0.26
4. Anteroposterior Path Length (mm) −0.22 −0.24 −0.26 −0.27 −0.34 −0.38 −0.21 −0.19 −0.19
5. Average Sway Speed (mm/s) −0.21 −0.24 −0.26 −0.28 −0.36 −0.39 −0.19 −0.17 −0.19
SPPB Tandem Balance -- 0.74 0.62 -- 0.71 0.57 -- 0.75 0.64
Berg Balance Scale -- -- 0.82 -- --0 0.82 -- -- 0.82
1

Higher values in the Static Balance Measures indicate poorer balance while higher SPPB Tandem balance, Berg Balance Scale, and 1-Leg Stand values indicate better balance. Numbers in the table are correlation coefficients.

**

all p < 0.0001 for correlation coefficients