Spain’s medical team is deploying a mix of advanced recovery tools—hyperbaric chambers, chromotherapy and audiotherapy—around Mikel Merino, but the Arsenal midfielder warns those methods are marginal gains compared with the fundamentals: sleep and nutrition. The RFEF’s medical lead frames these therapies as tools to shave fatigue and help players arrive fitter for the next match.
Spain’s recovery toolbox for Mikel Merino
Claudio Vázquez, head of the RFEF’s medical services, outlines a structured recovery programme used with Spain’s squad in the World Cup that blends conventional and high-tech modalities.

Hyperbaric oxygen sessions, targeted light therapy and sound-based recovery treatments sit alongside cryotherapy and compression work to tackle match-induced stress and muscle fatigue.
Hyperbaric therapy and physical regeneration
Hyperbaric chambers increase oxygen availability to tissues, accelerating repair processes and reducing perception of fatigue. For a midfielder like Mikel Merino, who covers high distances and engages in repeated sprints, the goal is clearer recovery between fixtures rather than dramatic overnight improvements.
Chromotherapy, audiotherapy and the recovery environment
Light-based treatments and curated soundscapes are used to modulate mood, circadian rhythms and relaxation. These interventions are low-risk, non-invasive methods intended to optimise recovery habits such as sleep onset and stress reduction—small levers that can influence readiness across a tournament schedule.
Merino’s priorities: sleep and nutrition first
Merino himself is unequivocal: “The most important thing is to sleep well and eat well.” He frames the high-tech sessions as “a 1%” contribution—helpful, but not decisive. That perspective underlines a veteran player’s understanding that marginal gains matter only when core foundations are secure.
Why the approach matters for Spain
In congested international calendars, marginal gains accumulate. Spain’s medical strategy acknowledges that elite performance is multi-factorial: scientific recovery tools can shave recovery time, but they are supplements to load management, quality sleep and nutrition. For managers and coaching staffs, the challenge is balancing trust in technology with evidence-based player care.
Implications for selection and squad management
These protocols give Spain options: more confident rotation, quicker top-ups after intense matches, and targeted care for key contributors like Merino. Practically, that can translate into fresher legs in second halves, reduced soft-tissue issues and better cumulative match performance.
What to watch next
Track how Spain integrates these sessions during tournament stretches and whether players report measurable wellness improvements or reduced injury blips.
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If Merino maintains his fitness and form, the combination of disciplined fundamentals plus marginal recovery tools will look like prudent, modern player management rather than gimmickry.
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