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Table 2 Results

From: Variation in the location of the shoe sole flexion point influences plantar loading patterns during gait

Peak pressure (PP)

Sub-MTPJ

 

Prox-MTPJ

  

Midfoot

  

(kPa)

average

(95% CI)

average

(95% CI)

p-value

average

(95% CI)

p-value

Hallux

278.3

(239.7-316.9)

266.2

(247.4-285.0)

0.208

268.8

(250.0-287.6)

0.322

Lesser toes

112.4

(97.9-126.9)

115

(107.4-122.6)

0.505

114.7

(107.1-122.3)

0.555

MTP 1

244.4

(224.2-264.6)

239.8

(228.2-251.4)

0.436

244.1

(232.5-255.7)

0.959

MTP 2&3

226

(207.4-244.6)

229.9

(222.3-237.5)

0.317

226.1

(218.5-233.7)

0.979

MTP 4&5

145.2

(132.9-157.5)

154.2

(146.2-162.2)

0.028*

147.4

(139.4-155.4)

0.592

Medial midfoot

99.9

(92.6-107.2)

91.5

(86.6-96.4)

0.008*

94

(88.9-99.1)

0.023*

Lateral midfoot

108

(94.5-121.5)

116.2

(101.3-131.1)

0.281

103.1

(88.2-118.0)

0.519

Medial hindfoot

237

(222.5-251.5)

232.9

(224.3-241.5)

0.351

227

(218.4-235.6)

0.023*

Lateral hindfoot

243.3

(228.6-258.0)

239.6

(230.2-249.0)

0.441

231

(221.6-240.4)

0.010*

Contact time (CT)

Sub-MTPJ

 

Prox-MTPJ

  

Midfoot

  

(ms)

average

(95% CI)

average

(95% CI)

p-value

average

(95% CI)

p-value

Hallux

492.5

(461.1-523.9)

495.6

(471.1-520.1)

0.804

493.4

(468.9-517.9)

0.943

Lesser toes

471.8

(440.4-503.2)

497.9

(471.6-524.2)

0.052

486.9

(460.6-513.2)

0.26

MTP 1

511.3

(487.4-535.2)

514.3

(494.7-533.9)

0.764

502.7

(483.1-522.3)

0.9

MTP 2&3

560.3

(538.5-582.1)

570.9

(559.5-582.3)

0.068

570.8

(559.4-582.2)

0.07

MTP 4&5

581.8

(562.0-601.6)

587.7

(577.3-598.1)

0.266

576.4

(565.8-587.0)

0.317

Medial midfoot

608.4

(590.8-626.0)

606.7

(593.0-620.4)

0.808

591

(577.3-604.7)

0.013**

Lateral midfoot

628.7

(611.5-645.9)

624.1

(613.5-634.7)

0.394

607.2

(596.6-617.8)

0.000**

Medial hindfoot

485.7

(449.6-521.8)

472

(439.3-504.7)

0.412

458

(425.3-490.7)

0.097

Lateral hindfoot

444.8

(415.0-474.6)

426.5

(400.8-452.2)

0.162

415.4

(389.7-441.1)

0.025*

Pressure time integral (PTI)

Sub-MTPJ

 

Prox-MTPJ

  

Midfoot

  

(Ns/cm 2 )

average

(95% CI)

average

(95% CI)

p-value

average

(95% CI)

p-value

Hallux

3.243

(2.735-3.751)

3.238

(3.058-3.418)

0.957

3.243

(3.063-3.423)

1

Lesser toes

1.262

(1.021-1.503)

1.252

(1.152-1.352)

0.845

1.205

(1.105-1.305)

0.264

MTP 1

4.5

(4.035-4.965)

4.452

(4.252-4.652)

0.638

4.405

(4.205-4.605)

0.352

MTP 2&3

4.476

(4.002-4.950)

4.338

(4.171-4.505)

0.105

4.481

(4.314-4.648)

0.953

MTP 4&5

3.181

(2.762-3.600)

3.367

(3.136-3.598)

0.115

3.162

(2.931-3.393)

0.872

Medial midfoot

1.09

(0.955-1.225)

1.09

(1.004-1.176)

1

0.957

(0.871-1.043)

0.003**

Lateral midfoot

1.514

(1.255-1.773)

1.628

(1.371-1.885)

0.384

1.252

(0.995-1.509)

0.046**

Medial hindfoot

3.895

(3.560-4.230)

3.809

(3.631-3.987)

0.345

3.628

(3.450-3.806)

0.003**

Lateral hindfoot

3.852

(3.497-4.207)

3.914

(3.759-4.069)

0.433

3.633

(3.478-3.788)

0.006**

Ratio’s

Sub-MTPJ

 

Prox-MTPJ

  

Midfoot

  
 

average

(95% CI)

average

(95% CI)

p-value

average

(95% CI)

p-value

PP MTP2&3 / MTP 1

0.952

(0.834-1.070)

1

(0.949-1.051)

0.065

0.957

(0.906-1.008)

0.848

PTI MTP2&3 / MTP 1

1.033

(0.898-1.168)

1.081

(1.022-1.140)

0.11

1.09

(1.031-1.149)

0.057

  1. Peak pressure, contact time, pressure–time integral and ratioof MTPJ23/MTPJ1 peak pressure results for each of the three sole flexion points.
  2. *p value < 0.05 compared to sub-MTPJ condition.
  3. **p value < 0.05 compared to sub-MTPJ condition and prox-MTPJ condition.