Table 1

Generalized gait dynamics descriptors for a rat model of lumbar radiculopathy

Body weight

Pre-operative

Sham

NP Alone

NP + sTNFRII


Mass (g)

285 ± 4

348 ± 6*

325 ± 9*

340 ± 11*

Affected limb

Pre-operative

Sham

NP Alone

NP + sTNFRII

Max Fz (mN)

2,156 ± 65

2,069 ± 79

1,877 ± 88

2,016 ± 85

Iz (mN-s)

416.6 ± 25.5

463.2 ± 31.0

325.4 ± 34.5∀,#

417.9 ± 33.5

Max F-x (mN)

-56 ± 15

-170 ± 18*

-111 ± 20

-142 ± 20*

I-x (mN-s)

-3.5 ± 1.6

-15.3 ± 2.0*

-6.7 ± 2.2

-10.3 ± 2.1

t-x (% stance time)

20.7 ± 2.8

30.4 ± 3.4

21.2 ± 3.8

27.7 ± 3.7

Max Fx (mN)

177 ± 18

204 ± 22

240 ± 25*

256 ± 24*

Ix (mN-s)

24.0 ± 3.2

28.6 ± 3.9

34.0 ± 4.3

32.9 ± 4.2

Max Fy,0-100% (mN)

280 ± 19

301 ± 23

301 ± 25

286 ± 25

Max Fy,50-100% (mN)

182 ± 12

203 ± 15

185 ± 16

176 ± 16

Iy (mN-sec)

38.9 ± 2.2

46.2 ± 4.3

38.0 ± 4.2

40.4 ± 2.8

Contralateral limb

Pre-operative

Sham

NP Alone

NP + sTNFRII

Max Fz (mN)

2,154 ± 74

2,079 ± 83

1,984 ± 97

1,914 ± 81

Iz (mN-s)

439.5 ± 29.0

475.6 ± 32.6

488.3 ± 38.0

440.3 ± 31.8

Max F-x (mN)

-79 ± 17

-160 ± 19*

-124 ± 22

-116 ± 19

I-x (mN-s)

-5.7 ± 1.9

-13.3 ± 2.1*

-11.6 ± 2.4

-6.7 ± 2.0

t-x (% stance time)

23.4 ± 3.2

30.4 ± 3.6

22.7 ± 4.2

18.1 ± 3.5

Max Fx (mN)

169 ± 21

263 ± 23*

274 ± 27*

304 ± 23*

Ix (mN-s)

23.0 ± 3.6

33.2 ± 4.1

40.2 ± 4.7*

42.4 ± 3.9*

Max Fy,0-100% (mN)

285 ± 21

304 ± 24

276 ± 28

231 ± 23

Max Fy,50-100% (mN)

167 ± 14

210 ± 16

182 ± 18

184 ± 15

Iy (mN-sec)

40.5 ± 2.6

45.2 ± 4.3

49.1 ± 5.7

36.2 ± 3.6


∀, P <0.05 vs. contralateral control limb

*, P <0.05 vs. pre-operative control

#, P <0.05 vs. sham control

Data presented as mean ± standard error

Allen et al. Arthritis Research & Therapy 2011 13:R137   doi:10.1186/ar3451

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