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Table 2 The mean between-group differences (95% CI) in the postural sway parameters for all test conditions

From: Stimulated cervical afferent input increases postural instability in older people with chronic neck pain: a cross-sectional study

  

Main effect

Interaction effect

Neck pain vs. Controls

p-value

  

Group

Condition

(Group x Condition)

Mean difference (95% CI)

 

AP displacement (mm)

 

0.01

< 0.001

0.32

  
 

EOF

   

2.08 (-0.47–4.63)

0.11

 

EOS

   

4.70 (0.54–8.86)

0.03

 

EOF-torsion

   

2.97 (0.25–5.70)

0.03

 

EOS-torsion

   

5.11 (1.00–9.22)

0.02

ML displacement (mm)

 

0.03

< 0.001

0.69

  
 

EOF

   

1.58 (-0.47–3.62)

0.13

 

EOS

   

2.13 (-1.16–5.42)

0.20

 

EOF-torsion

   

2.06 (0.07–4.06)

0.04

 

EOS-torsion

   

3.12 (0.33–5.92)

0.03

Sway area

(mm²)

 

< 0.001

< 0.001

0.01

  
 

EOF

   

159.26 (55.57–262.96)

0.003

 

EOS

   

470.39 (207.83–732.95)

0.001

 

EOF-torsion

   

193.36 (80.54–306.18)

0.001

 

EOS-torsion

   

478.60 (202.35–754.85)

0.001

Velocity

(mm/s)

 

0.01

< 0.001

0.03

  
 

EOF

   

1.37 (-0.11–2.84)

0.07

 

EOS

   

3.02 (0.59–5.46)

0.02

 

EOF-torsion

   

1.44 (-0.08–2.96)

0.06

 

EOS-torsion

   

3.18 (1.26–5.10)

0.002

  1. AP displacement = anterior-posterior displacement, ML displacement = medial-lateral displacement, EOF = eyes open on a firm surface, EOS = eyes open on a soft surface, EOF-torsion = eyes open on a firm surface with neck torsion, EOS-torsion = eyes open on a soft surface with neck torsion
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BMC Geriatrics

ISSN: 1471-2318

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