“Live High–Train Low and High” Hypoxic Training Improves Team-Sport Performance
PURPOSEThis study aims to investigate physical performance and hematological changes in 32 elite male team-sport players after 14 d of “live high–train low” (LHTL) training in normobaric hypoxia (≥14 h·d at 2800–3000 m) combined with repeated-sprint training (six sessions of four sets of 5 × 5-s sprints with 25 s of passive recovery) either in normobaric hypoxia at 3000 m (LHTL + RSH, namely, LHTLH; n = 11) or in normoxia (LHTL + RSN, namely, LHTL; n = 12) compared with controlled “live low–train low” (LLTL; n = 9) training. METHODSBefore (Pre), immediately after (Post-1), and 3 wk after (Post-2) the intervention, hemoglobin mass (Hbmass) was measured in duplicate [optimized carbon monoxide (CO) rebreathing method], and vertical jump, repeated-sprint (8 × 20 m–20 s recovery), and Yo-Yo Intermittent Recovery level 2 (YYIR2) performances were tested. RESULTSBoth hypoxic groups similarly increased their Hbmass at Post-1 and Post-2 in reference to Pre (LHTLH+4.0%, P < 0.001 and +2.7%, P < 0.01; LHTL+3.0% and +3.0%, both P < 0.001), whereas no change occurred in LLTL. Compared with Pre, YYIR2 performance increased by ∼21% at Post-1 (P < 0.01) and by ∼45% at Post-2 (P < 0.001), with no difference between the two intervention groups (vs no change in LLTL). From Pre to Post-1, cumulated sprint time decreased in LHTLH (−3.6%, P < 0.001) and LHTL (−1.9%, P < 0.01), but not in LLTL (−0.7%), and remained significantly reduced at Post-2 (−3.5%, P < 0.001) in LHTLH only. Vertical jump performance did not change. CONCLUSIONS“Live high–train low and high” hypoxic training interspersed with repeated sprints in hypoxia for 14 d (in season) increases the Hbmass, YYIR2 performance, and repeated-sprint ability of elite field team-sport players, with benefits lasting for at least 3 wk postintervention..
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Artikel |
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Erscheinungsjahr: |
2015 |
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Erschienen: |
2015 |
Enthalten in: |
Zur Gesamtaufnahme - volume:47 |
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Enthalten in: |
Medicine and science in sports and exercise - 47(2015), 10, Seite 2140-2149 |
Sprache: |
Englisch |
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Beteiligte Personen: |
BROCHERIE, FRANCK [VerfasserIn] |
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Links: |
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doi: |
10.1249/MSS.0000000000000630 |
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funding: |
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PPN (Katalog-ID): |
OLC1963598849 |
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520 | |a PURPOSEThis study aims to investigate physical performance and hematological changes in 32 elite male team-sport players after 14 d of “live high–train low” (LHTL) training in normobaric hypoxia (≥14 h·d at 2800–3000 m) combined with repeated-sprint training (six sessions of four sets of 5 × 5-s sprints with 25 s of passive recovery) either in normobaric hypoxia at 3000 m (LHTL + RSH, namely, LHTLH; n = 11) or in normoxia (LHTL + RSN, namely, LHTL; n = 12) compared with controlled “live low–train low” (LLTL; n = 9) training. METHODSBefore (Pre), immediately after (Post-1), and 3 wk after (Post-2) the intervention, hemoglobin mass (Hbmass) was measured in duplicate [optimized carbon monoxide (CO) rebreathing method], and vertical jump, repeated-sprint (8 × 20 m–20 s recovery), and Yo-Yo Intermittent Recovery level 2 (YYIR2) performances were tested. RESULTSBoth hypoxic groups similarly increased their Hbmass at Post-1 and Post-2 in reference to Pre (LHTLH+4.0%, P < 0.001 and +2.7%, P < 0.01; LHTL+3.0% and +3.0%, both P < 0.001), whereas no change occurred in LLTL. Compared with Pre, YYIR2 performance increased by ∼21% at Post-1 (P < 0.01) and by ∼45% at Post-2 (P < 0.001), with no difference between the two intervention groups (vs no change in LLTL). From Pre to Post-1, cumulated sprint time decreased in LHTLH (−3.6%, P < 0.001) and LHTL (−1.9%, P < 0.01), but not in LLTL (−0.7%), and remained significantly reduced at Post-2 (−3.5%, P < 0.001) in LHTLH only. Vertical jump performance did not change. CONCLUSIONS“Live high–train low and high” hypoxic training interspersed with repeated sprints in hypoxia for 14 d (in season) increases the Hbmass, YYIR2 performance, and repeated-sprint ability of elite field team-sport players, with benefits lasting for at least 3 wk postintervention. | ||
540 | |a Nutzungsrecht: © 2015 American College of Sports Medicine | ||
700 | 1 | |a MILLET, GRÉGOIRE P |4 oth | |
700 | 1 | |a HAUSER, ANNA |4 oth | |
700 | 1 | |a STEINER, THOMAS |4 oth | |
700 | 1 | |a RYSMAN, JULIEN |4 oth | |
700 | 1 | |a WEHRLIN, JON P |4 oth | |
700 | 1 | |a GIRARD, OLIVIER |4 oth | |
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