title: [Method for recovering and concentrating lactic acid during interval training].
abstract: Sixteen athletes were divided into 2 equal groups, A and B. Then, they were put through a series of repetitive trial exercises consisting in a sequence of 400 m races run to a sub-maximum speed (75% of maximum speed) and with pauses of a length of time equal to race time, and repeated to exhaustion, i.e., inability to keep up required speed. Recuperation in between races varied: Group A was completely passive, motionless; Group B was still going, albeit rather slowly. The parameters measured included blood concentration of lactic acid at rest and on completion of exercise and overall distance covered. At rest, there was a significant difference of lactatemia between the two groups. During the exercise, the distance run by Group B was longer (by 187.5 m) that that covered by Group A, though the difference was not significant (0.05 < P < 0.10), but his lactatemia was significantly much lower (P < 0.05). On average, the race speed and the time for recuperation which were alternatively measured were just the same for the two groups.
authors.affiliation: Institut National Supérieur de l'Education Populaire et du Sport (INSEPS), Dakar.
authors.forename: J
authors.initials: J
authors.lastname: Faye
authors.forename: F
authors.initials: F
authors.lastname: Arabi
authors.forename: B
authors.initials: B
authors.lastname: Faye
authors.forename: D
authors.initials: D
authors.lastname: Seck
authors.forename: F
authors.initials: F
authors.lastname: Cisse
authors.forename: J P
authors.initials: JP
authors.lastname: Martineaud
authors.forename: A
authors.initials: A
authors.lastname: Thiam
mesh_terms: D000328:Adult; D002498:Centrifugation; D015444:Exercise / Q000502:physiology*; D006801:Humans; D019344:Lactic Acid / Q000097:blood / Q000302:isolation & purification*; D008297:Male; D009994:Osmolar Concentration; D012146:Rest; D012420:Running / Q000502:physiology*; D013053:Spectrophotometry
chemical_list: D019344:Lactic Acid
vernacular_title: Mode de récupération et concentration d'acide lactique au cours d'un entraînement par intervalles.