title: Effects of adding a preceding run-up on performance, blood lactate concentration and heart rate during maximal intermittent vertical jumping.
abstract: In this study, we examined the effects of a prior run-up on intermittent maximal vertical jump performance. Seven regionally ranked male volleyball players volunteered to participate in the study. They performed three randomized tests: (1) six repeated intermittent maximal jumps (jump condition), (2) six repeated intermittent run-ups (run-up condition), and (3) six repeated run-ups followed by maximal jumps (run-up plus jump condition). All performances were assessed and blood lactate concentration and heart rate were measured before and after each of the tests. Mean ( +/- ) jump performance (64.7 +/- 2.3 cm) increased significantly (P = 0.02) over the course of the jump condition and was significantly higher (P < 0.001) than for the run-up plus jump condition (58.0 +/- 3.2 cm), which tended to decrease with repetition. Blood lactate concentration was significantly higher in the run-up plus jump condition (3.73 +/- 0.24 mmol . l(-1)) than in the jump (2.61 +/- 0.26 mmol . l(-1), P = 0.02) and run-up (2.86 +/- 0.18 mmol . l(-1), P = 0.03) conditions. The increase in heart rate was significantly higher both in the run-up plus jump condition (33 +/- 6 beats . min(-1), P = 0.05) and run-up condition (33 +/- 4 beats . min(-1), P = 0.02) than in the jump condition (21 +/- 3 beats . min(-1)). The results indicate that the addition of run-ups probably impeded performance in the repetition of vertical jumps.
authors.affiliation: Laboratoire ACTES, Université des Antilles et de la Guyane, Campus de Fouillole, 97159 Pointe à Pitre cedex, France.
authors.forename: C
authors.initials: C
authors.lastname: Hertogh
authors.forename: K
authors.initials: K
authors.lastname: Chamari
authors.forename: M
authors.initials: M
authors.lastname: Damiani
authors.forename: R
authors.initials: R
authors.lastname: Martin
authors.forename: Y
authors.initials: Y
authors.lastname: Hachana
authors.forename: S
authors.initials: S
authors.lastname: Blonc
authors.forename: O
authors.initials: O
authors.lastname: Hue
mesh_terms: D000222:Adaptation, Physiological / Q000502:physiology; D000328:Adult; D015444:Exercise / Q000502:physiology; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D019344:Lactic Acid / Q000097:blood*; D008297:Male; D009068:Movement / Q000502:physiology*; D012420:Running / Q000502:physiology; D013177:Sports / Q000502:physiology*; D013647:Task Performance and Analysis
chemical_list: D019344:Lactic Acid