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Visa fullständig version : Vitamin D-status kopplad till kroppsfettmängd hos idrottare


King Grub
2015-02-20, 09:58
The prevalence of insufficient vitamin D status is of concern and may negatively affect health and physical performance.

PURPOSE:

The purpose of this study was twofold, as follows: to assess the prevalence of 25-hydroxyvitamin D (25(OH)D) insufficiency among young hockey players and evaluate the association between 25(OH)D concentration and fat mass (FM) after adjusting for covariates.

METHODS:

Data were collected for 53 junior and collegiate ice hockey players residing near Minneapolis, MN (44.9° N) during the off-season (May 16 to June 28). Liquid chromatography-tandem mass spectrometry was used to assess 25(OH)D concentration, and hydrostatic weighing was used to determine FM. Dietary intake and endogenous synthesis of vitamin D were evaluated via a questionnaire.

RESULTS:

Twenty (37.7%) athletes possessed insufficient 25(OH)D concentrations (<32 ng·mL). Log-transformed 25(OH)D concentration was inversely associated with FM in the athletes (r = -0.52, n = 51, P = 0.001). After controlling for measured covariates using sequential linear regression, the adjusted R change value indicated that 8.1% of the variability in (log of) 25(OH)D concentration was predicted by FM (P = 0.005).

CONCLUSIONS:

The findings of this study demonstrate an inverse association between FM and vitamin D status after adjusting for environmental, dietary, and anthropometric predictors in a sample population of athletes. Athletes with higher levels of adiposity may be at increased risk of poor vitamin D status.


Med Sci Sports Exerc. 2015 Mar;47(3):655-61.Vitamin d status is associated with adiposity in male ice hockey players.

http://pt.wkhealth.com/pt/re/lwwgateway/landingpage.htm;jsessionid=Jm3Kj6G1pQ1gVSGTyfFhKvm TJLrK2Gpm8zn01DhS11vvqQHYz4JH!-1777306561!181195629!8091!-1?sid=WKPTLP:landingpage&an=00005768-201503000-00025

Anders The Peak
2015-02-20, 10:49
Kontrollerade man hur deras solvanor såg ut. Oftast täcker tjocka människor kroppen för att de tror att det inte synds att de är överviktiga. Normalviktiga klär av sig kläderna på sommaren och har inget att dölja

Ola Wallengren
2015-02-20, 11:58
Överviktiga och feta har lägre vitD nivåer. Detta tror man delvis beror på att vitD binds i fettet. Resultatet i ovanstående studie är alltså i linje med tidigare fynd.

cero
2015-02-20, 16:18
Överviktiga och feta har lägre vitD nivåer. Detta tror man delvis beror på att vitD binds i fettet. Resultatet i ovanstående studie är alltså i linje med tidigare fynd.

Hur menar du? Om det binds i fettet kan väl överviktiga lagra mer vitamin D?

Ola Wallengren
2015-02-20, 16:53
Jo, men det kan innebära att mindre dyker upp i blodet.

cero
2015-02-20, 17:39
Jo, men det kan innebära att mindre dyker upp i blodet.

Lust att förklara hur det går till? Blir det ett blockage av alla lager fett? :D

Ola Wallengren
2015-02-20, 18:29
Läs under rubrik 2. Vitamin D and Obesity

http://www.hindawi.com/journals/ije/2014/841248/

cero
2015-02-20, 22:14
Läs under rubrik 2. Vitamin D and Obesity

http://www.hindawi.com/journals/ije/2014/841248/

:thumbup:

Tackar och bockar.