Table 2

Patterns of colonic motor activity after ingestion of a high fat meal and a high carbohydrate meal

FatCarbohydrate
Control First hourSecond hourThird hourControlFirst hour Second hourThird hour
No of propagated waves3.8 (2.0) 8.8 (3.0)2-150 7.2 (2.7)2-150 6.9 (2.0)2-150 2.4 (1.4)7.7 (2.9)2-150 4.9 (2.3)2.1 (1.5)
Amplitude of propagating waves (mm Hg)71 (19)85 (20)87 (18)69 (19)62 (19)75 (20)83 (21)61 (20)
No of simultaneous waves6.4 (2.6)11.4 (3.5)2-150 9.4 (3.2)2-151 9.7 (3.3)2-151 5.8 (2.6)8.2 (3.1)2.8 (2.0)2.5 (1.7)2-150
No of retrograde waves0.7 (0.8) 1.8 (1.2)2-150 1.3 (1.0)1.1 (0.9)0.7 (0.7)1.3 (1.0)0.7 (0.7)0.6 (0.7)
No of PRMA cycles0.6 (0.5)0.5 (0.6)0.6 (0.6)0.5 (0.4)0.6 (0.4)0.5 (0.5)0.3 (0.3)1.1 (0.6)2-150 2-151
  • Results expressed as mean (95% confidence interval).

  • 2-150 p<0.05 meal versus control;

  • 2-151 p<0.05 fat versus carbohydrate.

  • PRMA, periodic rectal motor activity.