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Joggers face significant solar ultraviolet radiation (UVR) exposure, especially on the shoulders, increasing health risks. Protective measures are recommended even at low UV index levels for photosensitive individuals.

Keywords:
exposure ratio to ambientpersonal UV dosimetrypersonal UV exposurepersonal dosimetryrecreational outdoor sportsun burn timesun protection

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Area of Science:

  • Environmental Health
  • Sports Medicine
  • Dermatology

Background:

  • Jogging is a popular recreational activity promoting fitness and health.
  • Reduced clothing during exercise increases exposure to solar ultraviolet radiation (UVR).
  • Limited research exists on UVR exposure levels for joggers.

Purpose of the Study:

  • To quantify UVR exposure at various body sites during jogging.
  • To assess the health risks associated with UVR overexposure for joggers.
  • To provide recommendations for UVR protection during jogging.

Main Methods:

  • UVR exposure was measured at seven body sites during jogging.
  • Measurements were taken under cloud-free conditions with solar elevations from 20° to 60°.
  • Data were analyzed considering different body alignments and durations.

Main Results:

  • The shoulders receive the highest UVR exposure, averaging 80% and up to 110% of ambient levels.
  • Other body parts receive up to 55% UVR on average, with higher values in specific cases.
  • Monotonous body alignment to the sun increases exposure risk compared to alternating alignment.

Conclusions:

  • Shoulder protection is crucial for joggers, especially photosensitive individuals, starting at UV index 2 for unvaried paths and 3 for all-directional paths.
  • Recommendations for UVR protection should consider jogging duration and path.
  • Accurate UVR exposure measurements have an uncertainty of ±15%.