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Childhood leukemia survivors at increased risk of experiencing neurocognitive deficits, reduced exercise capacity

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Washington D.C. | October 21, 2019 12:41:40 PM IST
People who have survived the most commonly occurring childhood cancer - acute lymphoblastic leukemia (ALL) - are at an increased risk of experiencing neurocognitive deficits and reduced exercise capacity, a new study has found.

Researchers looked for an association between these outcomes by examining exercise and neuropsychological test results, as well as questionnaire answers, from 341 adult survivors of childhood ALL and 288 healthy controls.

They measured how much physical activity survivors could tolerate and how that related to their ability to think, learn, memorise, read, and do math.

Compared with controls, survivors had worse cardiovascular fitness and poorer performance on neuropsychological tests, including those related to attention, memory, and academic skills.

After adjusting for age, sex, radiation and chemotherapy treatments, smoking status, and physical activity, the authors found that increases in exercise capacity were associated with better performance on various neuropsychological tests among survivors.

Previous studies in children and older adults without cancer have suggested that physical fitness can provide benefits to brain function and academic performance.

Results from the study published in the journal Cancer, indicate that such benefits might also be experienced by children with cancer who need potentially neurotoxic anticancer treatments.

"Our research suggests that a minor improvement in exercise tolerance, such as going from sitting on the couch and watching TV to walking around the block for 30 minutes a day, can have a significant impact on survivors' intellectual health," said lead author Nicolas Phillips, MD, PhD, of St. Jude Children's Research Hospital in Memphis.

"We know that memory and thinking skills decline as we age. Any improvement in exercise tolerance, even in adulthood, may have an impact on a survivor's ability to think, learn, and memorize," added co-lead Kirsten Ness. (ANI)

 
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