A discussion among some successful rowing coaches with teenagers led to the discovery that all had shut down cellphone use on the drive to their kids' sports practices and games, as otherwise the kids were in a nearly complete daze when they got out of the car.
Music in the headphones was fine, but video games, YouTube, doomscrolling, and other dopamine-inducing apps on the phone were out; otherwise we found that the first 15 minutes of warmup or practice were almost useless.
"They were out of it; almost couldn't get themselves over to the field!"
Many parents have seen the same - it doesn't take a seasoned coach to recognize a player who is not ready to play. As it turns out, to the surprise of very few coaches and parents (and athletes as you will read), research confirms that the screentime haze is very real.
A report by Malaysian educators and sports scientists Kim Geok Soh, Samsilah Roslan, Mohd Rozilee Wazir Norjali Wazir, and Kim Lam Soh titled Does mental fatigue affect skilled performance in athletes? A systematic review tries to find a consensus among various different studies regarding effect of performing cognitive tasks before engaging in skill and performance sports including soccer, basketball, and table tennis.
The researchers found that athletic performance, and particularly skilled performance, was negatively affected by cognitive tasks of many types, significantly and specifically including video games, social media scrolling, and other smartphone uses, as well as well-known 'lab' tests such as the Stroop test, a word and color test that pairs the word for a color with a mismatched font color - so the word Blue might be shown in orange lettering, and the subject is asked to name the color of the word, not the word.
Perception of Effort is Most Affected; Task Speed Maintained but Accuracy Declined; Age-Related Factors
The details of the paper are interesting in several regards; among other observations:
For rowers, this may be the most significant data point; if what feels like 'full pressure' is some number of percentage points off, you could be significantly slower, especially in the boat when you don't have clear, individual splits to show you are off pace.
For example, soccer players made the same number of passes when fatigued, but made more errors and fewer perfect passes.
For soccer defenders, they had the same number of total tackles, but significantly fewer successful tackles. This may be related to another finding in the study where players were less aware of where their own teammates were on the field as compared to their opponents due to 'visual search strategy' being affected (coxswains take note!).
In basketball, turnovers increased among the mentally fatigued subjects, and in table tennis more faults were made.
Notably for rowers, the study focuses on technical and decision-making performance, and not on 'physical performance,' which is predominant in rowing. We will look for studies that address physical performance and will report on any findings.
Athletes Know When It is Time to Put Down the Phone
Perhaps the most encouraging element of the report is that an athlete's perception of mental fatigue is as reliable a marker as any for avoiding decline in performance. The study notes that 'subjective mental fatigue precedes any decrements in performance,' and can be used very effectively to self-govern exposure to mentally challenging tasks.
It would seem, however, that the addictive nature of many smartphone activities could undermine an honest assessment of fatigue until it is too late. No athletes are taking a Stroop test before practice or competition, but tons are distracting themselves with smartphone shenanigans, and many have a very hard time swiping the apps away and dousing the phone.
You can take a Stroop test here - but don't do it before practice!
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