No evidence of cardiac fatigue in tissue velocity curves at rest after 6 days of ultra-endurance exercise

↓ Direkt till sidans innehåll
↓ Direkt till sidans sekundära innehåll (sidomenyn)

Search: onr:"swepub:oai:DiVA.org:gih-1242" > No evidence of card...

1 of 1
Previous record
Next record
To hitlist

Details
MARC

Mattsson, C. MikaelGymnastik- och idrottshögskolan,Björn Ekbloms forskningsgrupp (author)

No evidence of cardiac fatigue in tissue velocity curves at rest after 6 days of ultra-endurance exercise

Article/chapterEnglish2010

Publisher, publication year, extent ...

Oxford Journals,2010
printrdacarrier

Numbers

LIBRIS-ID:oai:DiVA.org:gih-1242
https://urn.kb.se/resolve?urn=urn:nbn:se:gih:diva-1242URI

Supplementary language notes

Language:English
Summary in:English

Part of subdatabase

SwePubSwePub

Classification

Subject category:ref swepub-contenttype
Subject category:kon swepub-publicationtype

Notes

Purpose: The aim of this study was to investigate if extreme workload would induce signs of cardiac fatigue similar to that in skeletal muscle, e.g. decreased velocity of contraction. Methods: The subjects were 12 men and 3 women who participated in the Adventure Racing World Championship, a 5-7 days non-stop competition open for mixed gender teams of four. All subjects were healthy, well-trained ultra-endurance athletes with experince from several years of training and competition at international elite level. Measurements of the heart's contraction velocities were conducted using tissue Doppler imaging (VIVID7) in a resting situation at baseline, immediately after the race, and after 24 hours of recovery. Results: Characteristics for the subjects were at baseline (mean ± SD, for men and women): age 30±3 and 27±4; interventricular septal thickness 10.5±0.7 and 8.0±0.0 mm; left ventricular end-diastolic diameter 54.4±3.4 and 45.0±3.0 mm; posterior wall thickness 10.4±0.9 and 8.0±1.0 mm; early to late diastolic filling velocity (E/A) 2.3±0.6 and 2.2±0.2. Exercise duration was approx. 150 hours, and the calculated average work intensity was 40% of respective VO2peak, including time for rest, change of equipment, and food intake. Values of contraction velocities are presented in the table. Conclusions: All athletes had normally sized hearts. Based on contraction velocities we found no evidence of cardiac fatigue after ultra-endurance exercise. A difference compared to studies that found cardiac fatigue in other sports (e.g. marathon, triathlon) is that even though our population exercised for an extreme duration the average intensity was low. This might point towards that exercise intensity, not duration, is the primary source for cardiac fatigue.

Subject headings and genre

MEDICIN OCH HÄLSOVETENSKAP Klinisk medicin Kardiologi hsv//swe
MEDICAL AND HEALTH SCIENCES Clinical Medicine Cardiac and Cardiovascular Systems hsv//eng
MEDICIN OCH HÄLSOVETENSKAP Hälsovetenskap Idrottsvetenskap hsv//swe
MEDICAL AND HEALTH SCIENCES Health Sciences Sport and Fitness Sciences hsv//eng
Sports cardiology
cardiac fatigue
ultra-endurance exercise
adventure race
Cardiology
Kardiologi
Sports
Idrott
Medicin/Teknik
Medicine/Technology

Added entries (persons, corporate bodies, meetings, titles ...)

Lind, BrittaKTH, Skolan för teknik och hälsa (author)
Enqvist, Jonas K.Gymnastik- och idrottshögskolan,Björn Ekbloms forskningsgrupp(Swepub:gih)jonase (author)
Mårtensson, MattiasKTH, Skolan för teknik och hälsa (author)
Ekblom, BjörnGymnastik- och idrottshögskolan,Björn Ekbloms forskningsgrupp(Swepub:gih)bjorne (author)
Brodin, Lars-ÅkeKTH, Skolan för teknik och hälsa (author)
Gymnastik- och idrottshögskolanBjörn Ekbloms forskningsgrupp (creator_code:org_t)

Related titles

In:European Heart Journal (2010) 31 (Abstract Supplement), 304-305: Oxford Journals, s. 304-305

Internet link

https://urn.kb.se/resolve?urn=urn:nbn:se:gih:diva-1242

To the university's database

1 of 1
Previous record
Next record
To hitlist

Find more in SwePub

By the author/editor: Mattsson, C. Mik ...; Lind, Britta; Enqvist, Jonas K ...; Mårtensson, Matt ...; Ekblom, Björn; Brodin, Lars-Åke

About the subject

MEDICAL AND HEALTH SCIENCES: MEDICAL AND HEAL ...; and Clinical Medicin ...; and Cardiac and Card ...

MEDICAL AND HEALTH SCIENCES: MEDICAL AND HEAL ...; and Health Sciences; and Sport and Fitnes ...

Articles in the publication: European Heart J ...

By the university: The Swedish School of Sport and Health Sciences

Search outside SwePub

Extend your search to:: Google; Google Book Search; Google Scholar

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

LIBRIS.kb.se