Neuromuscular Responses to Conditioned Soccer Sessions Assessed via GPS-Embedded Accelerometers: Insights Into Tactical Periodization
| Autor: | Mathieu Lacome, Yannick Cholley, Ben M Simpson, Martin Buchheit |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Male
medicine.medical_specialty Physical Exertion Physical Therapy Sports Therapy and Rehabilitation Plyometric Exercise Accelerometer Running 03 medical and health sciences Vertical jump Recovery period 0302 clinical medicine Physical medicine and rehabilitation Heart Rate Accelerometry Soccer medicine Humans Orthopedics and Sports Medicine Muscle Strength Vertical stiffness Muscle Skeletal Simulation Mathematics business.industry 030229 sport sciences Time and Motion Studies Muscle Fatigue Geographic Information Systems Physical Endurance Countermovement jump Global Positioning System Perception business 030217 neurology & neurosurgery |
| Zdroj: | International Journal of Sports Physiology and Performance. 13:577-583 |
| ISSN: | 1555-0273 1555-0265 |
| DOI: | 10.1123/ijspp.2017-0045 |
| Popis: | Purpose: To examine the reliability of field-based running-specific measures of neuromuscular function assessed using global positioning system (GPS)–embedded accelerometers and their responses to 3 typical conditioned sessions (ie, strength, endurance, and speed) in elite soccer players. Methods: Before and immediately after each session, vertical jump (countermovement jump [CMJ]) and adductor squeeze strength (groin) performances were recorded. Players also performed a 4-min run at 12 km/h followed by four ∼60-m runs (run = 12 s, r = 33 s). GPS (5 Hz) and accelerometer (100 Hz) data collected during the 4 runs and the recovery periods, excluding the last recovery period, were used to derive vertical stiffness (K), peak loading force (peak force over all the foot strikes [Fpeak]), and propulsion efficiency (ie, the ratio between velocity and force loads [Vl/Fl]). Results: Typical errors were small (CMJ, groin, K, and Vl/Fl) and moderate (Fpeak), with moderate (Fpeak), high (K and Vl/Fl), and very high ICCs (CMJ and groin). After all sessions, there were small decreases in groin and increases in K, but changes in F were all unclear. By contrast, the CMJ and Vl/Fl ratio responses were session dependent. There was a small increase in CMJ after speed and endurance, but unclear changes after strength; the Vl/Fl ratio increased substantially after strength, but there were a small and a moderate decrease after endurance and speed, respectively. Conclusions: Running-specific measures of neuromuscular function assessed in the field via GPS-embedded accelerometers show acceptable levels of reliability. Although the 3 sessions examined may be associated with limited neuromuscular fatigue, changes in neuromuscular performance and propulsion efficiency are likely session-objective dependent. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|