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Table 3 Correlation coefficients among PPP, PPG, and PGA in three walking durations (1.8, 3.6, and 5.4 mph) at two walking durations (10 and 20 min)

From: Effects of walking speeds and durations on the plantar pressure gradient and pressure gradient angle

  

PPP and PPG

PPP and PGA

PPG and PGA

Duration

Speed

r

p-value

r

p-value

r

p-value

10 min

1.8 mph

0.831

 < 0.000

**

0.147

0.319

 

0.223

0.127

 
 

3.6 mph

0.808

 < 0.000

**

-0.078

0.599

 

0.089

0.546

 
 

5.4 mph

0.834

 < 0.000

**

0.309

0.032

*

0.308

0.033

*

20 min

1.8 mph

0.819

 < 0.000

**

0.383

0.007

**

0.591

 < 0.001

**

 

3.6 mph

0.865

 < 0.000

**

0.136

0.356

 

0.193

0.189

 
 

5.4 mph

0.846

 < 0.000

**

0.213

0.146

 

0.332

0.021

*

  1. PPG Peak pressure gradient, PGA Pressure gradient angle, T1 First toe, M1 First metatarsal head, M2 Second metatarsal head, and HL Heel; Data are shown as correlation coefficients
  2. *, a significant difference (p < 0.05)
  3. **, a significant difference (p < 0.01)
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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