Abstract
Purpose: This study aimed to assess the impact of 3 heights of simulated altitude exposure on repeat-sprint performance in teamsport athletes. Methods: Ten trained male team-sport athletes completed 3 sets of repeated sprints (9 × 4 s) on a nonmotorized treadmill at sea level and at simulated altitudes of 2000, 3000, and 4000 m. Participants completed 4 trials in a random order over 4 wk, with mean power output (MPO), peak power output (PPO), blood lactate concentration (Bla), and oxygen saturation (SaO2) recorded after each set. Results: Each increase in simulated altitude corresponded with a significant decrease in SaO2. Total work across all sets was highest at sea level and correspondingly lower at each successive altitude (P < .05; sea level < 2000 m < 3000 m < 4000 m). In the first set, MPO was reduced only at 4000 m, but for subsequent sets, decreases in MPO were observed at all altitudes (P < .05; 2000 m < 3000 m < 4000 m). PPO was maintained in all sets except for set 3 at 4000 m (P < .05; vs sea level and 2000 m). BLa levels were highest at 4000 m and significantly greater (P < .05) than at sea level after all sets. Conclusions: These results suggest that "higher may not be better," as a simulated altitude of 4000 m may potentially blunt absolute training quality. Therefore, it is recommended that a moderate simulated altitude (2000-3000 m) be employed when implementing intermittent hypoxic repeat-sprint training for team-sport athletes.
| Original language | English |
|---|---|
| Pages (from-to) | 857-862 |
| Number of pages | 6 |
| Journal | International Journal of Sports Physiology and Performance |
| Volume | 9 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2014 |
| Externally published | Yes |
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Effect of different simulated altitudes on repeat-sprint performance in team-sport athletes. / Goods, Paul S R; Dawson, Brian T.; Landers, Grant J.; Gore, Christopher J.; Peeling, Peter.
In: International Journal of Sports Physiology and Performance, Vol. 9, No. 5, 2014, p. 857-862.Research output: Contribution to journal › Article
TY - JOUR
T1 - Effect of different simulated altitudes on repeat-sprint performance in team-sport athletes
AU - Goods, Paul S R
AU - Dawson, Brian T.
AU - Landers, Grant J.
AU - Gore, Christopher J.
AU - Peeling, Peter
PY - 2014
Y1 - 2014
N2 - Purpose: This study aimed to assess the impact of 3 heights of simulated altitude exposure on repeat-sprint performance in teamsport athletes. Methods: Ten trained male team-sport athletes completed 3 sets of repeated sprints (9 × 4 s) on a nonmotorized treadmill at sea level and at simulated altitudes of 2000, 3000, and 4000 m. Participants completed 4 trials in a random order over 4 wk, with mean power output (MPO), peak power output (PPO), blood lactate concentration (Bla), and oxygen saturation (SaO2) recorded after each set. Results: Each increase in simulated altitude corresponded with a significant decrease in SaO2. Total work across all sets was highest at sea level and correspondingly lower at each successive altitude (P < .05; sea level < 2000 m < 3000 m < 4000 m). In the first set, MPO was reduced only at 4000 m, but for subsequent sets, decreases in MPO were observed at all altitudes (P < .05; 2000 m < 3000 m < 4000 m). PPO was maintained in all sets except for set 3 at 4000 m (P < .05; vs sea level and 2000 m). BLa levels were highest at 4000 m and significantly greater (P < .05) than at sea level after all sets. Conclusions: These results suggest that "higher may not be better," as a simulated altitude of 4000 m may potentially blunt absolute training quality. Therefore, it is recommended that a moderate simulated altitude (2000-3000 m) be employed when implementing intermittent hypoxic repeat-sprint training for team-sport athletes.
AB - Purpose: This study aimed to assess the impact of 3 heights of simulated altitude exposure on repeat-sprint performance in teamsport athletes. Methods: Ten trained male team-sport athletes completed 3 sets of repeated sprints (9 × 4 s) on a nonmotorized treadmill at sea level and at simulated altitudes of 2000, 3000, and 4000 m. Participants completed 4 trials in a random order over 4 wk, with mean power output (MPO), peak power output (PPO), blood lactate concentration (Bla), and oxygen saturation (SaO2) recorded after each set. Results: Each increase in simulated altitude corresponded with a significant decrease in SaO2. Total work across all sets was highest at sea level and correspondingly lower at each successive altitude (P < .05; sea level < 2000 m < 3000 m < 4000 m). In the first set, MPO was reduced only at 4000 m, but for subsequent sets, decreases in MPO were observed at all altitudes (P < .05; 2000 m < 3000 m < 4000 m). PPO was maintained in all sets except for set 3 at 4000 m (P < .05; vs sea level and 2000 m). BLa levels were highest at 4000 m and significantly greater (P < .05) than at sea level after all sets. Conclusions: These results suggest that "higher may not be better," as a simulated altitude of 4000 m may potentially blunt absolute training quality. Therefore, it is recommended that a moderate simulated altitude (2000-3000 m) be employed when implementing intermittent hypoxic repeat-sprint training for team-sport athletes.
KW - Altitude training
KW - Arterial desaturation
KW - Blood lactate
KW - Hypoxia
KW - Intermittent hypoxic training
KW - Single-Blind Method
KW - Western Australia
KW - Humans
KW - Male
KW - Lactic Acid/blood
KW - Young Adult
KW - Time Factors
KW - Biomarkers/blood
KW - Muscle Strength
KW - Heart Rate
KW - Hypoxia/blood
KW - Athletic Performance
KW - Oxygen Consumption
KW - Muscle, Skeletal/metabolism
KW - Group Processes
KW - Competitive Behavior
KW - Acid-Base Equilibrium
KW - Muscle Contraction
KW - Running
KW - Perception
KW - Altitude
KW - intermittent hypoxic training
KW - blood lactate
KW - arterial desaturation
KW - altitude training
KW - hypoxia
UR - http://www.scopus.com/inward/record.url?scp=84908505378&partnerID=8YFLogxK
UR - http://www.mendeley.com/research/effect-different-simulated-altitudes-repeatsprint-performance-teamsport-athletes
U2 - 10.1123/ijspp.2013-0423
DO - 10.1123/ijspp.2013-0423
M3 - Article
VL - 9
SP - 857
EP - 862
JO - International Journal of Sports Physiology and Performance
JF - International Journal of Sports Physiology and Performance
SN - 1555-0265
IS - 5
ER -