Fig. 5

Intra-oral vacuum traces of a breastfeed for 2 preterm infants (a) this infant displays peak vacuums between −90 mmHg and – 250 mmHg and is able to maintain suck bursts with more than 10 sucks per burst (b) this infant applies peak vacuum between −10 mmHg and −150 mmHg and often has less than 10 sucks per suck burst and longer pauses than infant (a)