Effects of recreational alpine skiing on altitudes from 1250 to 2000 m on oxygen transport system

Cilj ovog istraživanja bio je utvrditi dovodi li desetodnevni boravak i skijanje na visinama do 2000 metara do promjena na pokazateljima krvi koji su uključeni u sustav prijenosa kisika i eritropoezu. Boravak i trening na nadmorskoj visini često je korištena metoda pripreme vrhunskih sportaša čiji je glavni cilj utjecati na poboljšanje funkcioniranja prijenosnog sustava za kisik putem povećanja broja eritrocita i hemoglobina. Visine na kojima su takva istraživanja provedena su uglavnom veće od 2 i 3 tisuće metara, te traju po nekoliko tjedana (3 i više), jer se smatra da je toliko potrebno za postići utjecaj na vrhunsko treniran organizam. U ovom istraživanju odabran je boravak od 10 dana na visini do 2000 metara s ispitanicima koji su dio rekreativne populacije, upravo kako bi se vidjelo ima li takav boravak utjecaja na osobu koja nije vrhunski sportaš. Eksperimentalna skupina je živjela na visini od 1250 m te 6-7 sati dnevno skijala na visinama do 2000 m, dok je kontrolna skupina živjela svoj uobičajeni svakodnevni život na razini mora (122 m). U dva navrata izvršena je laboratorijska dijagnostika pokazatelja krvi, u razmaku od 12 dana, prvo mjerenje dan prije i drugo mjerenje dan nakon intervencije kod eksperimentalne skupine (N=17, DOB= 21,52, SD=1,06) te u isto vrijeme kod kontrolne skupine koja nije prolazila intervenciju (N=15, DOB= 21,47, SD=1,07). Statističkom obradom podataka (t-test, ANOVA) utvrđeno je da je eksperimentalna skupina pokazala značajnu promjenu u vrijednostima eritropoetina (pad, p The research objective was to determine if 10 days of alpine skiing at altitudes up to 2000 m can lead to improvements on oxygen transport system blood parameters which are showed by erythropoetic changes. Altitude stay and training is regularly used method for elite athletes training regime and it's aim is to enhance oxygen transport system by raising red blood cell and hemoglobin levels. Altitudes at which such endeavours are usually partaken are higher than 2 or 3 thousand meters above sea level and they last 2, 3 weeks or more. It is considered that such altitude and duration is needed to obtain effects for an elite athlete. It was opted that this research intervention lasts for 10 days and at altitude lower than 2000 meters with subjects who are not elite athletes but active general population, exactly for reason to see if it's possible for them to obtain effects on such „lower altitudes“. Experimental group has lived at 1250 m and skied for 6-7 hours per day at altitudes up to 2000 m, while control group lived their usual everyday life at sea level (122 m). Laboratory measurements were conducted at two occasions, 12 days apart, one day before and one day after the experimental group (N=17, AGE= 21,52, SD=1,06) had their skiing trip. Control group was also measured at the same time (N=15, AGE= 21,47, SD=1,07). Statistical analysis (t test, ANOVA) has shown that experimental group had significant change of erythropoeitin levels (fall, p