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. Author manuscript; available in PMC: 2010 Oct 16.
Published in final edited form as: J Biomech. 2009 Jul 30;42(14):2273–2278. doi: 10.1016/j.jbiomech.2009.06.046

Table 2.

Mean (SE) total, vertical (V), horizontal (H) and lateral (L) positive external work (J/step/kg) for each group and walking speed. O = obese, N = normal weight.

Positive External Work (J/step/kg)
Speed
(m/s)		 Total+ V+ H+ L+
O N O N O N O N
0.50 0.186
(0.019)		 0.155
(0.018)		 0.212
(0.026)		 0.149
(0.024)		 0.138
(0.006)		 0.106
(0.008)		 0.014
(0.005)		 0.008
(0.002)
0.75 0.185
(0.008)		 0.168
(0.010)		 0.247
(0.013)		 0.207
(0.013)		 0.211
(0.014)		 0.184
(0.009)		 0.015
(0.002)		 0.011
(0.002)
1.00 0.229
(0.011)		 0.226
(0.010)		 0.293
(0.018)		 0.272
(0.022)		 0.303
(0.016)		 0.275
(0.016)		 0.016
(0.003)		 0.010
(0.002)
1.25 0.292
(0.015)		 0.305
(0.017)		 0.358
(0.019)		 0.339
(0.019)		 0.402
(0.013)		 0.385
(0.018)		 0.014
(0.002)		 0.008
(0.001)
1.50 0.376
(0.019)		 0.375
(0.012)		 0.425
(0.025)		 0.415
(0.019)		 0.528
(0.018)		 0.508
(0.016)		 0.012
(0.002)		 0.007
(0.001)
1.75 0.430
(0.023)		 0.419
(0.025)		 0.456
(0.028)		 0.449
(0.027)		 0.603
(0.029)		 0.586
(0.033)		 0.010
(0.002)		 0.007
(0.001)