2008/03/01 by Stephen A. Ingham, Helen Carter, Gregory P. Whyte +1 · 2 citations
Engineering · Medicine · #Animal science #Biology #Blood lactate #Blood pressure #Cardiology #Cardiovascular and exercise physiology #Cycle ergometer #Heart rate #Intensity (physics) #Internal medicine #Lactate threshold #Medicine #Physical therapy #Physics #Rowing #Sports Dynamics and Biomechanics #Sports Performance and Training #Time trial
paper · doi:10.1249/mss.0b013e31815ecc6a
openalex publication_date 2008/03/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
PURPOSE: To examine the impact of low-intensity and a mixture of low- and high-intensity training on physiological and performance responses in rowing. METHODS: Eighteen experienced rowers undertook a 12-wk program of 100% < or = lactate threshold (LT) training (LOW) or 70% training at < or = LT and 30% at halfway (50%Delta) between the V O2 at LT and V O2peak (MIX). Responses were assessed before and after training by a progressive exercise test to exhaustion; multiple "square-wave" rest-to-exercise transitions of 6-min duration at 50%Delta; and a maximal 2000-m ergometer time trial. RESULTS: Improvements (P < 0.001) in 2000-m ergometer performance and V O2peak occurred independently of groups (P = 0.8 and 0.42, respectively). LOW improved the power at LT (23.5 +/- 12.2 vs 5.1 +/- 5.0 W, P = 0.013) and power at a [blood lactate] of 4 mM (32.3 +/- 6.9 vs 13.1 +/- 3.7 W, P = 0.03) compared with MIX. The time constant and gain of the primary component were unchanged with training, whereas the gain of the V O2 slow component was reduced with training, but independently of group. CONCLUSIONS: Both LOW and MIX training programs improved performance and V O2peak by the same magnitude, whereas LOW attenuated the blood lactate response to a given exercise intensity more so than MIX.