Sd. Farber et al., QUANTITATIVE AND QUALITATIVE VIDEO ANALYSIS OF INFANTS FEEDING - ANGLED-BOTTLE AND STRAIGHT-BOTTLE FEEDING SYSTEMS, The Journal of pediatrics, 126(6), 1995, pp. 118-124
Objective: To determine whether an angled-bottle feeding system is mor
e effective than a straight-bottle feeding system in facilitating the
medically recommended semiupright infant posture and to determine whet
her an angled bottle promotes improved ergonomic alignment and comfort
for the feeder. Study design: On two consecutive days, 23 pairs of pa
rent-infant teams, seated in an ergonomic chair, were videotaped at th
e same time of day, during which infants were fed by their parents wit
h either an angled or a straight bottle (presented in balanced order)
fitted with the infants' regular nipple. Infants were given their regu
lar type and amount of formula. Results: The angled bottle provided a
higher level of satisfaction compared with the straight bottle, Less g
astric discomfort occurred with the angled bottle versus the straight
bottle when each was compared with the bottle used at home. In additio
n, feeders assumed ergonomically sound positions. Conclusion: This stu
dy indicates that an angled bottle is preferable to a straight bottle
because it encourages more physiologic positioning of the infant, impr
oves the comfort level of the feeder, improves ergonomic feeding perfo
rmance, and decreases the need for burping.