ArticleEuropean journal of applied physiology2022
Diving ergospirometry with suspended weights: breathing- and fin-swimming style matter.
Article in European journal of applied physiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Not yet cited in PubMed.
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Corrections and comments
- Erratum issued
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8 authors.
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Abstract
purposeScuba diving is a complex condition including elevated ambient pressure, limited air supply, increased breathing work, and unfamiliar fin-swimming. Earlier approaches to assess diving specific data did not comprehensively address these aspects. We first present an underwater ergospirometry system and then test the hypothesis that both breathing characteristics and fin-swimming style affect the air consumption. METHODS/
participantsA suspended-weights ergospirometry system was mounted inside a hyperbaric chamber. Ergo group: 25 divers (24.6 ± 4.1 years); three set-ups: dry normobaric cycling (75-225 W), dry cycling at 20 m simulated depth (75-225 W), fin-swimming at 20 m (5-8 kg suspended weights). Style group: 20 other divers (24.6 ± 4.1 years): fin-swimming at 20 m (5-8 kg) with regard to ventilation ([Formula: see text]E) and fin-swimming style.
resultsErgo group: linear heart rate and oxygen uptake ([Formula: see text]O
conclusionsDiving ergospirometry with suspended weights in a hyperbaric chamber allows for comprehensive studies. Little diving experience in terms of breathing characteristics and fin-swimming style significantly increases [Formula: see text]E thereby increasing the risk of running-out-of-air.
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