Mechanical, Metabolic and Perceptual Response during Sprint Training.
This study aimed to analyze perceptual, metabolic and mechanical responses to sprint training sessions. 9 male high-level sprinters performed 40 m running sprints up to a loss of 3% in speed, with 4 min rests between sets. Perceptual (rating of perceived exertion, RPE), mechanical (speed and countermovement jump height loss) and metabolic (blood lactate and ammonia) parameters were measured pre-exercise and after each sprint was performed. Relationships between the variables were calculated with a 90% confidence interval. Jump height loss showed almost perfect relationships with both blood lactate (r=0.96 (0.95 to 0.97)) and ammonia (r=0.95 (0.94 to 0.95)), whereas speed loss, number of sprints performed and RPE values showed large-very large relationships with blood lactate and ammonia. Furthermore, an almost perfect curvilinear relationship was observed between lactate and ammonia concentrations (R(2)=0.96 (0.95 to 0.97)). These results suggest that countermovement jump (CMJ) height can be used to quantify the fatigue induced during a typical sprint training session, and may prove a useful tool to facilitate individualized load monitoring. The results indicate that the CMJ is a better monitor of metabolic fatigue than traditional measures.
Physical Activity and Sports Science, Catholic University of San Antonio, Murcia, Spain.
P
P
Jimenez-Reyes
Faculty of Sport, Pablo de Olavide University, Seville, Spain.
F
F
Pareja-Blanco
Physical Activity and Sports Science, University of Jaen, Jaén, Spain.
V
V
Cuadrado-Peñafiel
Physical Activity and Sports Science, University of Jaen, Jaén, Spain.
J A
JA
Morcillo
Physical Activity and Sports Science, University of Jaen, Jaén, Spain.
J A
JA
Párraga
Faculty of Sport, Pablo de Olavide University, Seville, Spain.
J J
JJ
González-Badillo
D000293:Adolescent; D000328:Adult; D000641:Ammonia / Q000097:blood; D054874:Athletic Performance / Q000502:physiology*; D015444:Exercise / Q000502:physiology*; D006801:Humans; D019344:Lactic Acid / Q000097:blood; D008297:Male; D018763:Muscle Fatigue / Q000502:physiology*; D012420:Running / Q000502:physiology*; D055815:Young Adult
D019344:Lactic Acid; D000641:Ammonia