Document Detail


Optimization of fin-swim training for SCUBA divers.
MedLine Citation:
PMID:  18251440     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Underwater swimming is a unique exercise and its fitness is not accomplished by other types of training. This study compared high intensity intermittent fin-swim training (HIIT) with moderate intensity continuous (MICT). Divers (n = 20; age = 23 +/- 4 yrs; weight = 82.57 +/- 10.38 kg; height = 180 +/- 6 cm) were assigned to MICT (65%-75% heart rate max (HRmax), for 45 min) or HIIT three 10 min swims/rest cycles (77%, 83%, and 92% HRmax, respectively) for 50 min. They trained using snorkel and fins at the surface paced by an underwater light system 3 times per week for 4 weeks. Swim tests were the energy cost of swimming, VO2max and timed endurance swim (at 70%/VO2max). The VO2 was a non-significantly reduced at any velocity with either HIIT or MICT. Maximal swim velocity increased after HIIT (10%) (p < or = 0.05) but not after MICT (p > 0.05). VO2max increased 18% after HIIT and 6% after MICT (p < or = 0.05). The endurance times increased 131% after HIIT and 78% after MICT (p < or = 0.05), and in spite of this post-swim lactate was not significantly different and averaged 4.69 +/- 1.10mM (p > 0.05). Although both training methods significantly improved fin swimming performance with similar time commitments, the HIIT improved VO2max and endurance more than MICT (p < or = 0.05). As no improvements in ventilation were observed, combining HIIT with respiratory muscle training could optimize diver swim fitness.
Authors:
J Wylegala; M Schafer-Owczarzak; D R Pendergast
Publication Detail:
Type:  Journal Article; Randomized Controlled Trial; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Undersea & hyperbaric medicine : journal of the Undersea and Hyperbaric Medical Society, Inc     Volume:  34     ISSN:  1066-2936     ISO Abbreviation:  Undersea Hyperb Med     Publication Date:    2007 Nov-Dec
Date Detail:
Created Date:  2008-02-06     Completed Date:  2008-02-11     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9312954     Medline TA:  Undersea Hyperb Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  431-8     Citation Subset:  IM; S    
Affiliation:
Center for Research and Education in Special Environments, Department of Rehabilitation Sciences, University at Buffalo, Buffalo, NY 14214, USA.
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MeSH Terms
Descriptor/Qualifier:
Adult
Analysis of Variance
Carbon Dioxide / analysis
Diving / physiology*
Energy Metabolism / physiology
Equipment and Supplies
Heart Rate / physiology
Humans
Lactic Acid / blood
Male
Oxygen / analysis
Physical Endurance / physiology
Swimming / physiology*
Chemical
Reg. No./Substance:
124-38-9/Carbon Dioxide; 50-21-5/Lactic Acid; 7782-44-7/Oxygen

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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