Acute high-intensity interval training improves T-vent and peak power output in highly trained males.

Laursen, PB, Blanchard, MA and Jenkins, DG (2002) Acute high-intensity interval training improves T-vent and peak power output in highly trained males.. Canadian Journal of Applied Physiology-revue Canadienne De Physiologie Appliquee, 27 4: 336-348. doi:10.1139/h02-019


Author Laursen, PB
Blanchard, MA
Jenkins, DG
Title Acute high-intensity interval training improves T-vent and peak power output in highly trained males.
Journal name Canadian Journal of Applied Physiology-revue Canadienne De Physiologie Appliquee   Check publisher's open access policy
ISSN 1066-7814
Publication date 2002-01-01
Year available 2002
Sub-type Article (original research)
DOI 10.1139/h02-019
Open Access Status Not yet assessed
Volume 27
Issue 4
Start page 336
End page 348
Total pages 13
Place of publication Champaign
Publisher Human Kinetics Publ Inc
Language eng
Abstract This study examined the effects of four high-intensity interval-training (HIT) sessions performed over 2 weeks on peak volume of oxygen uptake (VO2peak), the first and second ventilatory thresholds (UT VT2) and peak power output (PPO) in highly trained cyclists. Fourteen highly trained male cyclists (VO2peak = 67.5 +/- 3.7 ml . kg(-1) . min(-1)) performed a ramped cycle test to determine VO2peak VT1 VT2, and PPO. Subjects were divided equally into a HIT group and a control group. The HIT group performed four HIT sessions (20 x 60 s at PPO, 120 s recovery); the V-02peak test was repeated <I wk after the HIT program. Control subjects maintained their regular training program and were reassessed under the same timeline. There was no change in V0(2peak) for either group; however, the HIT group showed a significantly greater increase in VT1, (+22% vs. -3%), VT2 (+15% vs. -1%), and PPO (+4.3 vs. -.4%) compared to controls (all P <.05). This study has demonstrated that HIT can improve VT1, VT2,, and PPO, following only four HIT sessions in already highly trained cyclists.
Keyword Physiology
Sport Sciences
Cycling
Cyclists
Heart Rate
Oxygen Uptake
Short-term Training
Ventilatory Threshold
Skeletal-muscle
Endurance Performance
Oxygen-uptake
Prolonged Exercise
Cardiac-function
Down-regulation
Plasma Lactate
Gas-exchange
Adaptations
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Human Movement and Nutrition Sciences Publications
 
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Created: Mon, 13 Aug 2007, 23:07:46 EST