Unit:
Τομέας Βασικών Ιατρικών ΕπιστημώνLibrary of the School of Health Sciences
Author:
Katrabasas Ioannis
Dissertation committee:
Κουτσιλιέρης Μιχαήλ, Καθηγητής, Ιατρική, ΕΚΠΑ
Φατούρος Ιωάννης, Καθηγητής, ΤΕΦΑΑ Τρικάλων, Παν/μιο Θεσσαλίας
Αγγελογιάννη Παναγούλα, Καθηγήτρια, Ιατρική, ΕΚΠΑ
Φιλίππου Αναστάσιος, Αν. Καθηγητής, Ιατρική, ΕΚΠΑ
Αρμακόλας Αθανάσιος, Αν. Καθηγητής, Ιατρική, ΕΚΠΑ
Μαυραγάνη Κλειώ, Αν. Καθηγήτρια, Ιατρική, ΕΚΠΑ
Χατζηγεωργίου Αντώνιος, Επ. Καθηγητής, Ιατρική, ΕΚΠΑ
Original Title:
Φυσιολογία της άσκησης: ποδόσφαιρο και απόδοση καμπτήρων και εκτεινόντων μυών του γόνατος
Translated title:
Physiology of exercise: football and performance of knee flexors and extensors muscles
Summary:
A football match causes exertional muscle injury to increase inflammation with immediate effects on physical performance. The purpose of the study was to investigate the inflammatory response and the recovery rate of performance during recovery after two repeated soccer matches within the same racing microcycle. The study was conducted with double-blind, 2 x 3 design with volunteers crossover in both conditions (experimental & control), performing repeated measurements of time factor (six-time points). The study involved 20 healthy soccer players aged 22.51.7 yrs and training age 10.30.5 yrs who were initially randomly assigned to the two groups. Assessment: muscle injury markers, Delayed onset of muscle soreness (DOMS), and knee joint range of motion (KJRM), creatine kinase concentration (CK), and leukocyte population (WBC) inflammation markers. Also, during the matches, the performance was assessed using GPS, mean heart rate, peak heart rate percentage, and lactate concentration. To evaluate the effect of two repetitive soccer matches on physical performance up to two days later, the strength of the lower extremities was assessed by isokinetic dynamometer in all three types of muscle contraction. The results showed that in the majority of variables (power, inflammation, DOMS), repetitive matches had a cumulative effect on their values, showing higher values after the second game. The functional ratio proved to be more sensitive than conventional. The above showed that the recovery time between the two games was not sufficient to fully restore the homeostasis and functionality of the players. Accumulated fatigue increases the risk of injury. It is suggested that rehabilitation strategies should focus on the eccentric strength of the knee flexors in order to achieve the ideal functional ratio and maintain it.
Main subject category:
Health Sciences
Keywords:
Functional ratio, Injury, Inflammation, Performance
Number of references:
212
