title: Recovery (passive vs. active) during interval training and plasma catecholamine responses.
abstract: The effect of recovery mode (Active [AR] vs. Passive [PR]) on plasma catecholamine (Adrenaline [A] and Noradrenaline [NA]) responses to maximal exercise (Exemax) was studied during interval training (IT). 24 male subjects (21.1±1.1 years) were randomly assigned to a control group (CG, n=6), AR training group (ARG, n=9) or PR group (PRG, n=9). ARG and PRG participated in an IT program 3 times a week for 7 weeks. Before and after training, maximal oxygen uptake (VO2max) and maximal aerobic velocity (MAV) were measured. Plasma A and NA were determined at rest, at the end of Exemax and after 10 and 30 min of recovery. Training induced significant changes only in ARG: an increase of VO2max and MAV along with a significant increase of A and NA at the end of Exemax (2.82±0.15 vs. 1.03±0.15 nmol/l and 7.22±0.36 vs. 6.65±0.57 nmol/l, respectively p<0.05). The ratio A/NA measured at the end of Exemax also increased significantly after training (0.41±0.11 vs. 0.16±0.08, P>0.05). The present results show that IT with AR induces a significant increase of A and NA concentrations in response to maximal exercise. The study furthermore shows that IT program with AR may induce more stress than the same program with PR.
authors: Movement, Sport and health Sciences Laboratory (M2S), UFR APS University of Rennes 2, Rennes, France.
authors: A B
authors: AB
authors: Abderrahmane
authors: J
authors: J
authors: Prioux
authors: I
authors: I
authors: Mrizek
authors: K
authors: K
authors: Chamari
authors: Z
authors: Z
authors: Tabka
authors: A
authors: A
authors: Bouslama
authors: H
authors: H
authors: Zouhal
mesh_terms: D004837:Epinephrine / Q000097:blood*; D015444:Exercise / Q000502:physiology*; D005080:Exercise Test; D006801:Humans; D008297:Male; D009638:Norepinephrine / Q000097:blood*; D010101:Oxygen Consumption / Q000502:physiology*; D010807:Physical Endurance / Q000502:physiology; D055815:Young Adult
chemical_list: D009638:Norepinephrine; D004837:Epinephrine