1) Käesoleva uuringu tulemused annavad treeneritele kindlust, et laboratoorsetes tingimustes liikuval jooksurajal läbi viidud testimistel näidatud muutused RE ja/või V̇O2max näitajates on üle kantavad staadionil jooksmisele.
2) Varasem jooksulindi kasutamise kogemus ei mõjuta RE ning V̇O2max väärtuseid laboratoorsetes tingimustes testil, kui enne testi algust on antud piisavalt aega jooksulindiga kohanemiseks.
3) Jooksulindi tõusunurk 1% on tõenäoliselt liiga suur võrdsustamaks lindil jooksmist staadionil jooksmisega.
30
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36
Running Economy During Field Running than on Treadmill Running:
Kenyans and Estonians Summary
Treadmill running is widely used to assess maximal oxygen uptake (V̇O2max) and running economy (RE) during stepwise incremental test in distance runners. Given on-going interest in ways to improve the specificity of physiological testing for elite athletes in their "natural"
environment, portable metabolic systems provide a means of assessing the metabolic demand of exercise in sport-specific settings.
The aim of the present study was to compare RE and V̇O2max values between running on treadmill and on track in Kenyan runners with no previous experience with treadmill running as well as Estonian runners who were habitual treadmill runners.
A total of 23 competitive male Kenyan (25.5 ± 5.6 yrs; 57.9 ± 5.7 kg) and 13 Estonian (25.4 ± 4.4 yrs; 69.0 ± 5.9 kg) distance runners were recruited to this study. Kenyan runners performed V̇O2max test together with RE measurements on treadmill and outdoor track in randomized order. Estonian runners performed first test on outdoor track and second one on treadmill. Despite similar V̇O2max (KEN: 67.6 ± 5.3 vs. 68.9 ± 3.8 ml∙kg-1∙min-1, p = 0.069;
EST: 68.5 ± 5.3 vs. 71.4 ± 6.4 ml∙kg-1∙min-1, p = 0.105, track and treadmill respectively), superior RE was found on the track compared to the treadmill in both groups (KEN: 211.8 ± 11.0 vs. 230.1 ± 13.4 O2 ml∙kg-1∙km-1, p = 0.000; EST: 215.4 ± 12.4 vs. 236.8 ± 18.0 O2
ml∙kg-1∙km-1, p = 0.000).
Present findings indicated that high level Kenyan distance runners who were familiarized with treadmill running before the test, have significantly better RE on track than on treadmill. This finding was confirmed by habitual treadmill runners. It can be concluded that despite running on track involves several aspects that are different to those of an treadmill, RE and V̇O2max
measured on treadmill and on track are highly correlated and it is reasonable to assume that interventions affecting RE on treadmill will have similar effect to RE on track.
Finally, the practical implications of the findings of the present study give confidence for running coaches that training methods resulting in an improvement in RE and V̇O2max on treadmill tests would lead to a similar improvement in running on track in high level distance runners. However, the 1% inclination on the treadmill is likely to be too high to reproduce similar efforts to those on track running.
37
Lisad
Lisa 1. Jooksuökonoomsust mõjutavad faktorid (Saunders et al., 2004 järgi).
Jooksu ökonoomsus
38 Lisa 2. Gaasivahetuse mõõtmine jooksulindil joostes Douglase koti meetodiga
(http://www.denstoredanske.dk).
39 Lisa 3. Gaasivahetuse mõõtmine välistingimustes joostes Douglase koti meetodiga (http://www.fact-canada.com).
40 Lisa 4. Gaasivahetuse mõõtmine välistingimustes joostes Douglase koti meetodiga (Basset et al., 1985).
41 Lihtlitsents lõputöö reprodutseerimiseks ja lõputöö üldsusele kättesaadavaks tegemiseks
Mina: Bert Tippi ,
(sünnikuupäev: 27.07.1990 )
1. annan Tartu Ülikoolile tasuta loa (lihtlitsentsi) enda loodud teose
Eesti ja Kenya jooksjate ökonoomsus ning maksimaalne aeroobne võimekus: jooksulint vs staadion ,
mille juhendaja on Martin Mooses ,
1.1. reprodutseerimiseks säilitamise ja üldsusele kättesaadavaks tegemise eesmärgil, sealhulgas digitaalarhiivi DSpace-is lisamise eesmärgil kuni autoriõiguse kehtivuse tähtaja lõppemiseni;
1.2. üldsusele kättesaadavaks tegemiseks Tartu Ülikooli veebikeskkonna kaudu, sealhulgas digitaalarhiivi DSpace´i kaudu kuni autoriõiguse kehtivuse tähtaja lõppemiseni.
2. olen teadlik, et punktis 1 nimetatud õigused jäävad alles ka autorile.
3. kinnitan, et lihtlitsentsi andmisega ei rikuta teiste isikute intellektuaalomandi ega isikuandmete kaitse seadusest tulenevaid õigusi.
Tartu, 20.05.2014