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Determinant Factors of Repeat Sprint Sequences in Young Soccer Players
- Source :
- Int J Sports Med. 2015 Feb;36(2):130-6., RIO. Repositorio Institucional Olavide, instname
- Publication Year :
- 2014
- Publisher :
- Thieme Publishing, 2014.
-
Abstract
- The aim of this study was to investigate the relationships between repeated explosive effort sequences (20+20¿m shuttle sprint with change of direction, kicking and jumping), metabolic response (lactate and ammonia), and fitness qualities (strength and endurance) in under-19 soccer players. 21 players completed: 1) sprint test: 30¿m (T30) and 40¿m (20+20¿m) shuttle sprints; 2) countermovement jumps (CMJ); 3) maximal kicking; and 4) 9 repeated-explosive effort sequences (RES); 4) a progressive isoinertial loading test in full squat to determine the load which subjects achieved ~1¿m¿·¿s¿1 (V1-load); 6) Yo-Yo Intermittent Recovery Test Level 1 (YYIRT-1). Mean sprint time of the 9 repeated sprints (RSAmean1¿9) showed correlation with V1-load (r=¿¿0.52 [¿¿0.79, ¿¿0.25]) metabolic response (lactate, r=0.67 [0.47, 0.87] and ammonia, r=0.53 [0.27, 0.79]). YYIRT-1 correlated with RSAmean1-9 (rw=¿¿0.78 [¿¿0.92, ¿¿0.64]) when the body weight was controlled. Furthermore, the 3 first sprints (RSAmean1-3) correlated with RSAbest (r=0.93 [0.88, 0.98]), V1-load (r=¿¿0.64 [¿0.86, ¿¿0.42]), and T30 (r=0.63 [0.41, 0.85]). These results suggest that the soccer player¿s lower body strength (V1-load, jumping and sprinting) explains a large part of the performance in the first sequences, whereas the aerobic capacity, estimated through YYIRT-1, becomes more important to performance as the number of sprints is increases.<br />Universidad Pablo de Olavide de Sevilla. Departamento de Deporte e Informática<br />Postprint
- Subjects :
- medicine.medical_specialty
Adolescent
Kicking
Lactic acid blood
Physical Therapy, Sports Therapy and Rehabilitation
Squat
Athletic Performance
medicine.disease_cause
Body weight
Running
Vertical jump
Oxygen Consumption
Jumping
Physical medicine and rehabilitation
Lower body
Ammonia
Soccer
medicine
Metabolites
Humans
Orthopedics and Sports Medicine
Lactic Acid
Muscle Strength
CIRFD - VBT
Aerobic capacity
Mathematics
Muscle strength
Repeated sprint ability
Intermittent fitness testing
Sprint
Motor Skills
Exercise Test
Physical Endurance
CIRFD - Centro de Investigación en Rendimiento Físico y Deportivo
human activities
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Int J Sports Med. 2015 Feb;36(2):130-6., RIO. Repositorio Institucional Olavide, instname
- Accession number :
- edsair.doi.dedup.....e4da4d9bcd5718ade109e30cac426ef5