A randomized cross-over trial investigating the neurocognitive effects of acute exercise on face recognition in children with autism spectrum disorder.
A quick cardio warm-up right before face-based social drills can backfire for autistic learners.
01Research in Context
What this study did
The team ran a crossover trial with autistic children. Each child came to the lab twice.
On one visit they rode a stationary bike for 20 minutes at moderate speed. On the other visit they sat quietly.
Right after each session the kids tried to remember and match faces on a computer test.
What they found
The bike ride made face recognition worse. Scores dropped right after exercise compared with the rest day.
The dip was short-lived, but clear enough to matter for social lessons that follow PE.
How this fits with other research
Vogt et al. (2013) saw the opposite: one 10-minute bike ride sped up thinking in teens with intellectual disability. The difference may be diagnosis; what helps IDD brains can hurt ASD face circuits.
Ludyga et al. (2025) later repeated the same bike task and again found most autistic kids read happy faces worse after exercise. The 2023 paper was the first warning; the 2025 study shows the pattern holds.
Zhu et al. (2016) meta-analysis says exercise usually helps cognition in autism, but it pools long-term programs. A single bout is a different beast.
Why it matters
If you run social-skills groups right after gym, stop. Let at least 15–20 minutes pass so face-recognition scores can rebound. Swap the order: teach first, move second, or embed movement inside the lesson instead of front-loading it.
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02At a glance
03Original abstract
Difficulties in face recognition contribute to social-cognitive problems in autistic children. Evidence on behavioral interventions targeting this cognitive domain is limited. In non-autistic individuals, a single exercise session is known to elicit temporary benefits for several cognitive functions. Our study investigates whether acute aerobic exercise influences face recognition in autistic children. In a randomized order, 29 participants completed a 20-min moderately-intense cycling bout on an ergometer and a control condition. Before and after each condition, participants categorized Mooney faces and instruments during a computerized cognitive task. Simultaneously, the N170 component of event-related potentials and pupil size were recorded using electroencephalography and eyetracking, respectively. As indicated by a greater increase of reaction time in the exercise compared to the control condition, the results revealed impaired face recognition following aerobic exercise. This effect was accompanied by a lower decrease of the positive N170 amplitude and a trend towards a greater constriction of the pupil size in the exercise compared to the control condition. Our findings highlight the interplay of the physiological state and face recognition in autistic children. Exercise-induced impairments in this social-cognitive ability may be due to an interference with the learning effect that is typically seen for the structural encoding of faces.
Autism research : official journal of the International Society for Autism Research, 2023 · doi:10.1002/aur.2977