Aerobic exercise linked to better vocabulary growth in children: Study
Newark: Aerobic exercise may improve a child's ability to acquire new word-object relations, a recent study has found. The study, published in the Journal of Speech, Language and Hearing Research, is one of the first studies to research on the effect of exercise on vocablary learning in children.
In simple words, the study showed that exercise can boost vocablury growth in children.
For the study, children aged 6 to 12 years were taught new words before doing one of three things -- taking part in CrossFit exercises, swimming, or completing a coloring sheet. The children who swam were found to be 13% more accurate in follow-up tests of the vocablury words.
It makes sense to the lead researcher, Maddy Pruitt, herself a former college swimmer who now regularly takes CrossFit classes. "Motor movement helps in encoding new words," she said, explaining that exercise is known to increase levels of brain-derived neurotrophic factor, a protein Pruitt describes as the "Miracle-Gro of the brain."
Why then, did swimming make a difference while CrossFit did not? Pruitt attributes it to the amount of energy each exercise demands of the brain. Swimming is an activity the kids could complete without much thought or instruction. It was more automatic, while the CrossFit exercises were new to them. The children needed to learn the moves, which required mental energy.
Pruitt conducted the research as part of her Master's Capstone Project and graduated in 2020. She now works as a speech language pathologist at an elementary school in South Carolina, where she puts her findings into practice.
"My sessions are very rarely at a table," she said. "I'll take my kids out to the playground or we'll take a walk around the school."
Pruitt's adviser and coauthor Giovanna Morini is building on the findings in her lab. Morini, an assistant professor in the Department of Communication Sciences and Disorders, said most research into exercise examines it from the angle of a healthy lifestyle, not much enters the domain of language acquisition. She said she sees this as a rich line of inquiry and has another student running a similar experiment now with toddlers.
"We were so excited about this study because it applies to clinicians, caregivers and educators who can put it into practice," Morini said. "It's simple stuff, nothing out of the ordinary. But it could really help boost the outcomes."
Reference:
The study titled, "Examining the Role of Physical Activity on Word Learning in School-Aged Children," is published in the Journal of Speech, Language and Hearing Research.
DOI: https://pubs.asha.org/doi/10.1044/2021_JSLHR-20-00359
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