Why Pulsetto Argues the Nervous System Is the Most Overlooked Variable in Marathon Runner Recovery
Recovery, not just mileage, is becoming the metric serious runners obsess over. A new study from Pulsetto, the brand behind the vagus nerve stimulation device gaining traction in endurance circles, argues the nervous system itself may be the most overlooked variable in athletic performance — and the difference between burning out mid-block and showing up fresh on race day.
The findings, drawn from the brand’s HOKA Hackney Half Marathon Runner Recovery Project in London, point to measurable gains in sleep, heart rate variability and recovery readiness for both elite athletes and weekend runners.
How the Pulsetto Vagus Nerve Stimulation Device Works for Runners
Pulsetto is a wearable that delivers vagus nerve stimulation — a technique aimed at activating the parasympathetic nervous system, the body’s “rest and recover” mode. According to the study results announced by Pulsetto, participants underwent a baseline assessment and were assigned individualized protocols designed by the company’s clinical team. Researchers then tracked weekly survey responses alongside wearable-device metrics including HRV, sleep quality and recovery readiness.
The brand’s page for athletes recommends using the device after practice or games, before sleep, during travel, on rest days and at least five hours before competition if resting.
What the HOKA Hackney Half Marathon Study Found
The project followed runners through training for the half marathon, with participants reporting on how easily they could unwind after hard sessions and how recovered they felt between efforts.
Elite runner Nicholas Bester, who logs 140 kilometers or more per week, used Pulsetto after hard sessions and before bed. His HRV improved throughout the protocol, his self-reported freshness rose from seven to nine out of 10, and he rated the device’s usefulness nine out of 10.
“When I was training, the hardest part was trying to stay fresh between each race. I used Pulsetto after hard sessions and before bed each night to help me feel recovered mentally and physically,” Bester said.
Michael Adeniran, a father of two juggling training with daily stress and limited sleep, saw his evening unwinding and morning freshness scores climb from three to eight out of 10. He went on to record his fastest half marathon of the year at the HOKA Hackney event.
“The biggest change since using Pulsetto has definitely been sleep and feeling less mentally overloaded. I wake up way more refreshed, and it helps me manage my stress,” Adeniran said.
Why ‘Stress Fitness’ Matters for Athletes Right Now
Pulsetto is using the runner data to push a broader concept it calls Stress Fitness — what the brand describes as “the practice of proactively training the nervous system to become more resilient.” The company points to a peer-reviewed, PubMed-indexed clinical study showing a 56% reduction in depressive symptoms, a 45% reduction in anxiety and a 41% improvement in sleep disturbances among participants.
“What this study reinforces is that recovery is just as much neurological as it is physical. The nervous system is the foundation that every other aspect of training is built on, and when athletes learn to train it intentionally, the results show up across sleep, readiness, and resilience,” said Dr. Jone Pukėnaitė, medical and science lead at Pulsetto.
Pulsetto reports more than 300,000 users globally and uses an AI-personalized Stress Resilience Score that adapts to each user’s biomarkers and usage history. For runners weighing the device, the takeaway is less about a single gadget and more about a shift in what counts as training: treating the nervous system like any other system that needs conditioning.
This article was created by content specialists using various tools, including AI.
