Skin Findings in 28 Sailors Before and 18 After a Transatlantic Race

November 12, 2026

Doctor’s Notes · Life in Motion · Evidence Review

Editorial disclosure: The featured image is an AI-created illustration of a fictional activity, training or occupational setting. It is not a patient, diagnosis, before-and-after image, institutional endorsement or Dr. Arsy #003 treatment result.

Reader question: What did this exact study measure, in whom, with which comparator and timepoint—and which conclusions would go beyond its evidence?

Study snapshot

Study element	Reported detail
Population	Thirty-two eligible skippers in 16 two-person crews; 28 participated before departure and 18 completed arrival data.
Design	Prospective descriptive study with clinical examinations, photographs and a 34-question survey during the 2012 AG2R transatlantic race.
Comparator	Within-race comparison of departure findings with arrival findings; the arrival sample was smaller because of incomplete follow-up.
Timepoint	Before departure and on arrival after 22–24 days at sea.
Key result	At arrival the investigators reported more buttock folliculitis, fungal infections and hand hyperkeratosis, plus new scaling, buttock erosions, dyshidrosis, thermal burns and sunburn.
Funding/conflict context	Funding and author-conflict details were not reported in the accessible PubMed abstract.

What was actually measured?

At arrival the investigators reported more buttock folliculitis, fungal infections and hand hyperkeratosis, plus new scaling, buttock erosions, dyshidrosis, thermal burns and sunburn.

The study captures how a long offshore race coincided with a changed skin profile under prolonged protective gear, humidity and limited hygiene. It describes conditions in a very small elite sailing cohort; it does not estimate risk for recreational sailors or isolate which onboard exposure caused each finding.

The denominator defines the claim. People, visits, infections, episodes, isolates, feet and blisters are different analytic units. A percentage or rate using one unit cannot be silently rewritten as the percentage of people affected.

What the result does not prove

Only 18 of 32 eligible sailors supplied arrival data, so attrition can change the apparent before-and-after pattern. There was no non-sailing control group, diagnoses were not all laboratory-confirmed, and the PubMed abstract reports categories rather than effect estimates or uncertainty intervals.

Association and timing do not automatically prove individual causation. Footwear, surfaces, climate, ultraviolet exposure, hygiene, protective equipment, training load, prior conditions, referral patterns and access to care may change an estimate.

A PubMed record is a bibliographic source. PubMed indexing is not NIH endorsement of the authors’ conclusions, this interpretation or any product.

Keep the condition categories separate

Dryness, friction injury, sunburn, dermatitis, sensitization, fungal disease and bacterial infection are not interchangeable. A moisturizer may support hydration and the moisture barrier, but it does not diagnose infection, prevent ultraviolet injury, replace medical evaluation or substitute for activity-specific prevention.

Persistent spreading redness, drainage, fever, severe pain, rapidly worsening symptoms, a suspected contagious outbreak or major loss of function warrants prompt professional assessment. Clinicians may need microscopy, culture, patch testing, skin-prick testing or other targeted evaluation depending on the question.

Activity details worth documenting

What surface, footwear, sock, glove, mat, pool, boat, uniform, animal, climate or training load preceded the change?
Where did the problem begin, and did it change during rest, travel, deployment, competition or a different facility?
Were towels, clothing, footwear, razors, equipment or showers shared, and how were high-touch surfaces cleaned?
How often was skin wet, occluded, rubbed, heated, chilled or exposed to sun?
Did the problem alter sleep, pace, attendance, training, competition, work safety or duty status?

Prevention comes before cosmetic care

Prevention should match the hazard: well-fitted and broken-in equipment, task-appropriate textiles, friction management, clean personal gear, facility hygiene, prompt showering, ultraviolet protection and timely clinical assessment. No single intervention prevents every diagnosis.

Do not share personal skin products during an outbreak and do not test workplace, sport or environmental materials directly on skin. Follow occupational-health, sports-medicine, public-health and facility instructions for contagious or exposure-related conditions.

Primary research and authoritative guidance

Where Dr. Arsy #003 fits

Dr. Arsy #003 is a cosmetic moisturizer for hydration, moisture-barrier support and dry-skin comfort. This study did not test #003. Its findings do not show that #003 treats, cures or prevents eczema, infection, blisters, sunburn or sensitization; relieves pain or itch; neutralizes environmental exposures; is appropriate for every person; or provides pediatric or 24-hour efficacy.

Continue the evidence series

Evidence note: This educational article separates reported findings from interpretation. It is not a diagnosis, treatment recommendation or workplace, sports, military, maritime, animal-exposure or infection-control determination.

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