When your baby cries should you pick him or her up and walk or find a good rocking chair and rock back and forth? A new study from Japan says that infants respond best when mom (or any caregiver) picks them up and walks around.
Researchers said that the babies rapidly beating hearts also slowed down, proving that they felt calmer.
"Infants become calm and relaxed when they are carried by their mother said study researcher Dr. Kumi Kuroda, who investigates social behavior at the RIKEN Brain Science Institute in Saitama, Japan. Interestingly, the study also observed the same response in baby mice.
For the study, researchers monitored the responses of 12 healthy infants ages 1 month to 6 months. The scientists wanted to discover the most effective way for mothers to calm a crying baby over a 30-second period " simply holding the baby or carrying the infant while walking.
Results showed that infants carried by walking mothers were the most relaxed and soothed compared to babies whose mothers sat in a chair and held them. As a mother stood up with her cradled her baby and started to walk, scientists observed an automatic change in the baby's behavior.
These results held even after the researchers took into account other factors, such as the child's age and sex, and the mother's age and walking speed.
Kuroda said she was surprised by the strength of the calming effect. Researchers noted that the rhythm of walking might be more effective in soothing infants than any other rhythmic motion, including rocking.
Babies cry for a variety of reasons. If an infant is hungry or in pain, they'll most likely start crying again when they are laid back down. But sometimes a baby just feels a little anxious or unsure about their environment and will relax when held close and comforted. Kuroda acknowledged carrying might not completely stop the crying, but it may prevent parents from becoming frustrated by a crying infant.
The findings may also have implications for the parenting technique of letting babies cry in order to help them learn how to soothe themselves.
"Our study suggests why some babies do not respond well to the 'cry-it-out' parenting method," Kuroda said.
Babies crying during separation and maternal carrying are both built-in mechanisms for infant survival. These behaviors have been hard-wired for millions of years. "Changing these reactions would be possible as infants are flexible, but it may take time," she said.
While the study looked at a baby's response to its mother, Kudro said the calming effect was not specific to moms. Dads, grandparents and caregivers were able to provide the same calming effect by carrying the baby and walking
Many moms and dads instinctively know to pick up a baby that's crying, hold them close, pace around while gently patting baby on the back. This study just points out that if your baby is really upset, walking about may have a faster calming effect than rocking or sitting in a chair. Plus it adds more evidence that simply ignoring a baby while he or she cries isn't going to teach them how to soothe themselves. We all need a hug and a gentle pat on the back when we're upset. Babies need it maybe even a little more.
The study was published online in the journal Current Biology.
Source: Carl Nierenberg, http://www.today.com/moms/carry-study-finds-its-good-