Sökning: WFRF:(Pettersson Stefan) >
Off- to in-season b...
Off- to in-season body composition adaptations in elite male and female endurance and power event athletics competitors: an observational study
-
- Pettersson, Stefan, 1972 (författare)
- Gothenburg University,Göteborgs universitet,Centrum för hälsa och prestationsutveckling,Center for Health and Performance,Center for Health and Performance, Department of Food and Nutrition, and Sport Science, University of Gothenburg, Gothenburg, Sweden; Swedish Olympic Committee, Sofiatornet, Olympiastadion, Stockholm, Sweden,Institutionen för kost- och idrottsvetenskap,Department of Food and Nutrition, and Sport Science
-
- Kalén, Anton (författare)
- Luleå tekniska universitet,Digitala tjänster och system,Swedish Olympic Committee, Sofiatornet, Olympiastadion, Stockholm, Sweden;
-
- Gustafsson, Mikael, 1991 (författare)
- Gothenburg University,Göteborgs universitet,Centrum för hälsa och prestationsutveckling,Center for Health and Performance,Center for Health and Performance, Department of Food and Nutrition, and Sport Science, University of Gothenburg, Gothenburg, Sweden,Institutionen för kost- och idrottsvetenskap,Department of Food and Nutrition, and Sport Science
-
visa fler...
-
- Grau, Stefan (författare)
- Gothenburg University,Göteborgs universitet,Centrum för hälsa och prestationsutveckling,Institutionen för kost- och idrottsvetenskap,Center for Health and Performance,Department of Food and Nutrition, and Sport Science
-
- Caspers, Andreas, 1987 (författare)
- Gothenburg University,Göteborgs universitet,Centrum för hälsa och prestationsutveckling,Center for Health and Performance,Center for Health and Performance, Department of Food and Nutrition, and Sport Science, University of Gothenburg, Gothenburg, Sweden,Institutionen för kost- och idrottsvetenskap,Department of Food and Nutrition, and Sport Science
-
visa färre...
-
(creator_code:org_t)
- Springer Nature, 2024
- 2024
- Engelska.
-
Ingår i: BMC Sports Science, Medicine and Rehabilitation. - : Springer Nature. - 2052-1847. ; 16
- Relaterad länk:
-
https://doi.org/10.1...
-
visa fler...
-
https://ltu.diva-por... (primary) (Raw object)
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
https://gup.ub.gu.se...
-
https://gup.ub.gu.se...
-
visa färre...
Abstract
Ämnesord
Stäng
- Background: Monitoring elite athletes’ body composition (BC) is vital for health and optimizing performance in sports emphasizing leanness, such as athletics. This study aims to investigate and compare sex- and event-specific off-to in-season BC changes in endurance and power event athletics competitors.Methods: Elite male and female endurance athletes (> 800 m runners; n = 21) and power event athletes (sprinters, jumpers; n = 32) underwent dual-energy X-ray absorptiometry (DXA) scans for whole and regional lean mass (LM), fat mass (FM), bone mineral content (BMC), and density (BMD) during off-season (September-October) and in-season (April-May). Linear mixed models tested between-group off-season differences in BC, within-group off-season to in-season changes, and between-group differences in change. To assess meaningful or least significant changes (LSC) in BC, DXA precision errors were determined from two consecutive total body scans in a subsample of athletes (n = 30).Results: Male athletes (n = 26) gained significantly (p < 0.05) more body mass (BM; mean difference 1.5 [95% confidence interval (CI):0.5–2.4] kg), LM (843 [95% CI:-253:1459] g), and trunk LM (756 [-502:1156] g) than female athletes (n = 27). The proportion of changes in athlete’s BC exceeding the LSC threshold for LM and trunk LM were 70% and 65% in males, and 48% and 26% in females. Significant (p < 0.05) within-group off-season to in-season increases in LM were found for male endurance and power athletes, and female power athletes. All groups significantly increased BMD (p < 0.05). Only male and female power athletes had significant in- to-off-season increases in BMC. 80% of all athletes who had a meaningful increase in BMC belonged to the power event group. No significant within- or between group change in FM was observed.Conclusions: The present study found that male athletes gained more BM, LM and trunk LM than females. Within-group increases in regional and whole-body LM and BMC were predominantly found among power event competitors. Incorporating individual meaningful changes alongside traditional statistics provided additional insights into sex and event-group differences. Future research on elite athletic event groups should include DXA measurements closer to major outdoor-season competitions, coupled with site-specific measures (ultrasound, MRI) for better detection of subtle changes in LM and FM.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap -- Idrottsvetenskap (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Health Sciences -- Sport and Fitness Sciences (hsv//eng)
Nyckelord
- Dual-energy X-ray absorptiometry
- BMC
- BMD
- Lean mass
- Fat mass
- Least significant change
- Track and field
- Informationssystem
- Information Systems
- Dual-energy X-ray absorptiometry
- BMC
- BMD
- Lean mass
- Fat mass
- Least significant change
- Track and Field
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas