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Table 4 Breaking force and energy of the femoral diaphysis

From: Hydrolyzed collagen intake increases bone mass of growing rats trained with running exercise

  20% protein Two-way ANOVA (p value) 40% protein Two-way ANOVA (p value)
   Exercise Collagen Interaction   Exercise Collagen Interaction
Breaking force (×106 dyn)         
Collagen(-) EX(-) 29.358 ± 1.396 0.574 0.523 0.068 27.864 ± 1.105 0.757 0.708 0.547
EX(+) 26.702 ± 0.928 29.132 ± 1.994
Collagen(+) EX(-) 26.618 ± 1.358 29.222 ± 1.101
EX(+) 28.037 ± 0.803 28.816 ± 1.255
Breaking force (×106 dyn/100g Body Wt.)1         
Collagen(-) EX(-) 7.234 ± 0.329 0.001 0.909 0.082 6.766 ± 0.227 0.002 0.274 0.605
EX(+) 7.741 ± 0.231 8.343 ± 0.179
Collagen(+) EX(-) 6.798 ± 0.31 7.455 ± 0.254
EX(+) 8.237 ± 0.218 8.591 ± 0.352
Breaking energy (×105 erg)         
Collagen(-) EX(-) 20.301 ± 1.598 0.458 0.919 0.182 17.202 ± 1.778 0.492 0.195 0.145
EX(+) 19.430 ± 1.116 20.546 ± 1.048
Collagen(+) EX(-) 18.203 ± 1.704 21.499 ± 1.280
EX(+) 21.231 ± 1.480 20.290 ± 1.982
Breaking energy (×105 erg/100d Body Wt.)1         
Collagen(-) EX(-) 4.987 ± 0.37 0.002 0.886 0.269 4.191 ± 0.436 0.010 0.070 0.190
EX(+) 5.758 ± 0.221 5.833 ± 0.296
Collagen(+) EX(-) 4.644 ± 0.407 5.496 ± 0.376
  EX(+) 6.202 ± 0.389     6.047 ± 0.569    
  1. Values are expressed as means ± SD. Data were analyzed by two-way ANOVA at the 5% level of significance. Interaction means Exercise-Collagen interaction.
  2. 1Breaking force and energy adjusted to the 100g body weight to exclude the influence of body mass.