Washington, April 6 (ANI): A simple finger tapping test has shown that fine motor skill decline doesn't start until most people reach their mid-60s - and unless they have abnormal conditions like Parkinson's disease, middle-aged people do just as well as young adults.
In the study, participants' speed declined only slightly with age until a marked drop in ability with participants in their mid-60s.
Priscila Cacola, an assistant professor of kinesiology at The University of Texas at Arlington, hopes the new work will help clinicians identify abnormal loss of function in their patients. Though motor ability in older adults has been studied widely, not a lot of research has focused on when deficits begin, she said.
"We have this so-called age decline, everybody knows that. I wanted to see if that was a gradual process," Cacola said. "It's good news really because I didn't see differences between the young and middle-aged people."
Cacola's co-authors on the paper are Jerroed Roberson, a senior kinesiology major at UT Arlington, and Carl Gabbard, a professor in the Texas A and M University Department of Health and Kinesiology.
The researchers based their work on the idea that before movements are made, the brain makes a mental plan. They used an evaluation process called chronometry that compares the time of test participants' imagined movements to actual movements. Study participants - 99 people ranging in age from 18 to 93 - were asked to imagine and perform a series of increasingly difficult, ordered finger movements.
They were divided into three age groups - 18-32, 40-63 and 65-93 - and the results were analyzed.
"What we found is that there is a significant drop-off after the age of 64," Roberson said. "So if you see a drop-off in ability before that, then it could be a signal that there might be something wrong with that person and they might need further evaluation."
The study has been published in journal Brain and Cognition. (ANI)
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