title: [Force-velocity test: effect of a heavy-load start on maximal anaerobic power and blood lactate levels].
abstract: The purpose of this study was to determine the effect of starting the force-velocity test with a heavy load on both maximal anaerobic power and blood lactate concentration. Nine male subjects aged 23.4 +/- 1.3 yr (mean +/- sem) participated in a first force-velocity test (FV1) which had an initial load of 1 kg (classical protocol). Then a week later in a second force-velocity test (FV2) which had an initial load corresponding to maximal power developed during FV1 (W1). The increase in load was of 1 kg for FV1 and FV2. Our results show that during FV2, compared to FV1: 1) maximal anaerobic power developed (W2) is superior to W1 (W1 = 1,165.2 +/- 70.4 W; W2 = 1,278.6 +/- 92.3 W; p less than 0.02); 2) blood lactate concentration after the first load is inferior (p less than 0.001); 3) blood lactate concentration is not significantly different at the peak of power. Thus, starting the force-velocity test with a heavy load allows an increase of maximal anaerobic power until a blood lactate concentration which may be compared to the one obtained during the classic force-velocity test. In conclusion, maximal anaerobic power measured during the force-velocity test seems to depend on protocol used.
authors: Service d'Exploration de la Fonction Respiratoire, Hôpital Aiguelongue, Montpellier, France.
authors: B
authors: B
authors: Mercier
authors: J
authors: J
authors: Mercier
authors: P
authors: P
authors: Granier
authors: C
authors: C
authors: Prefaut
mesh_terms: D000328:Adult; D015444:Exercise / Q000502:physiology; D005080:Exercise Test; D006801:Humans; D007773:Lactates / Q000097:blood*; D008297:Male
chemical_list: D007773:Lactates
vernacular_title: Epreuve force-vitesse: effet d'un démarrage à charge élevée sur la puissance maximale anaérobie et la lactatémie.