caa a22 4500 467942196 CHVBK 20180406153016.0 cr unu---uuuuu 170328e20060701xx s 000 0 eng 10.1007/s00421-006-0228-3 doi (NATIONALLICENCE)springer-10.1007/s00421-006-0228-3 Influence of "living high-training low” on aerobic performance and economy of work in elite athletes [Elektronische Daten] [Laurent Schmitt, Grégoire Millet, Paul Robach, Gérard Nicolet, Julien Brugniaux, Jean-Pierre Fouillot, Jean-Paul Richalet] This study tested the effects of "living high-training low” (Hi-Lo) on aerobic performance and economy of work in elite athletes. Forty endurance athletes (cross-country skiers, swimmers, runners) performed 13-18 consecutive days of training at 1,200m altitude, by sleeping at 1,200m (LL, n=20) or in hypoxic rooms with 5-6 nights at 2,500m followed by 8-12 nights at 3,000-3,500m (HL, n=20). The athletes were evaluated before (pre-), one (post-1) and 15days (post-15) after Hi-Lo. Economy was assessed from two sub-maximal tests, one non-specific (cycling) and one specific (running or swimming). From pre- to post-1: $$\dot{V}\hbox{O}_{2{\rm max}}$$ increased both in HL (+7.8%, P<0.01) and in LL (+3.3%, P<0.05), peak power output (PPO) tended to increase more (P=0.06) in HL (+4.1%, P<0.01) than in LL (+1.9%). At post-15, $$\dot{V}\hbox{O}_{2{\rm max}}$$ has returned to pre-values in both groups, PPO increased more (P<0.05) in HL (+8.3%, P<0.01) than in LL (+3.8%), $$\dot{V}\hbox{O}_{2}$$ and power at respiratory compensation point (RCP) increased more (P<0.05) in HL (+9.5%, P<0.01 and +11.2%, P<0.01) than in LL (+3.2 and +3.3%). Cycling mechanical efficiency (8-5%) and economy during specific locomotion (7-7%) increased (P<0.05) in both groups. This study shows that, for a similar increase in $$\dot{V}\hbox{O}_{2{\rm max}},$$ HL had a greater increase in PPO than LL. The efficiency of Hi-Lo is also evidenced 15days later by higher $$\dot{V}\hbox{O}_{2}$$ and power at RCP. This study emphasizes that during the post-altitude period, economy of work greatly increases in both groups. Springer-Verlag, 2006 Hypoxia nationallicence Maximal oxygen uptake nationallicence Respiratory compensation point nationallicence Energy cost nationallicence Schmitt Laurent Université Paris 13, EA2363, ARPE, 74 rue Marcel Cachin, 93017, Bobigny, France aut Millet Grégoire Aspire, Academy for Sports Excellence, PO Box 2287, Doha, Qatar aut Robach Paul Université Paris 13, EA2363, ARPE, 74 rue Marcel Cachin, 93017, Bobigny, France aut Nicolet Gérard Centre National de Ski Nordique, Prémanon, 39220, Les Rousses, France aut Brugniaux Julien Université Paris 13, EA2363, ARPE, 74 rue Marcel Cachin, 93017, Bobigny, France aut Fouillot Jean-Pierre Université Paris 13, EA2363, ARPE, 74 rue Marcel Cachin, 93017, Bobigny, France aut Richalet Jean-Paul Université Paris 13, EA2363, ARPE, 74 rue Marcel Cachin, 93017, Bobigny, France aut European Journal of Applied Physiology Springer-Verlag 97/5(2006-07-01), 627-636 1439-6319 97:5<627 2006 97 421 https://doi.org/10.1007/s00421-006-0228-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00421-006-0228-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Schmitt Laurent Université Paris 13, EA2363, ARPE, 74 rue Marcel Cachin, 93017, Bobigny, France aut NATIONALLICENCE 700 1- Millet Grégoire Aspire, Academy for Sports Excellence, PO Box 2287, Doha, Qatar aut NATIONALLICENCE 700 1- Robach Paul Université Paris 13, EA2363, ARPE, 74 rue Marcel Cachin, 93017, Bobigny, France aut NATIONALLICENCE 700 1- Nicolet Gérard Centre National de Ski Nordique, Prémanon, 39220, Les Rousses, France aut NATIONALLICENCE 700 1- Brugniaux Julien Université Paris 13, EA2363, ARPE, 74 rue Marcel Cachin, 93017, Bobigny, France aut NATIONALLICENCE 700 1- Fouillot Jean-Pierre Université Paris 13, EA2363, ARPE, 74 rue Marcel Cachin, 93017, Bobigny, France aut NATIONALLICENCE 700 1- Richalet Jean-Paul Université Paris 13, EA2363, ARPE, 74 rue Marcel Cachin, 93017, Bobigny, France aut NATIONALLICENCE 773 0- European Journal of Applied Physiology Springer-Verlag 97/5(2006-07-01), 627-636 1439-6319 97:5<627 2006 97 421 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer