Unit:
Κατεύθυνση Προπονητικό πεδίοLibrary of the School of Physical Education and Sport Science
Supervisors info:
Παραδείσης Γιώργος, Καθηγητής, Σχολή Επιστήμης Φυσικής Αγωγής και Αθλητισμού, Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών
Μπογδάνης Γρηγόρης, Καθηγητής, Σχολή Επιστήμης Φυσικής Αγωγής και Αθλητισμού, Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών
Τερζής Γεράσιμος, Καθηγητής, Σχολή Επιστήμης Φυσικής Αγωγής και Αθλητισμού, Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών
Original Title:
Η επίδραση ασκήσεων μεταδιεγερτικής ενεργοποίησης στα κινηματικά χαρακτηριστικά και στο ταχοδυναμικό προφίλ των δρόμων ταχύτητας
Translated title:
Effect of potentiating exercises on kinematic characteristics and force - velocity profile of sprint
Summary:
According to the phenomenon of post – activation potentiation, an intense exercise performed before a sprint attempt can cause acute and short – term improvement of performance. The aim of this thesis was to investigate the acute effects of horizontal leg bounding and sled towing on subsequent 30 m sprint performance and the intermediate distances per 5 m, sprint kinematics (step length and rate, contact and flight time) and individual force – velocity profile. For this purpose, two studies were carried out. In the first study, 14 participants performed two experimental conditions which included alternate leg bounding or single leg bounding and one control condition which consisted of walking. Before and 5 min after each condition, 30 m sprint performance, kinematic characteristics and force – velocity profile were evaluated. In the second study, 12 participants performed one experimental condition which consisted of sled towing with the load causing a reduction of the theoretical maximum velocity by 50% and one control condition which consisted of walking. Measurement of sprint performance and calculation of kinematic characteristics and force–velocity profile were performed before and after 8 min of recovery in each condition. The results of the first study showed that performing alternate leg bounding improved the performance time to 5 and 10 m of sprint and increased the running velocity and step frequency to 5 m. The second study showed that sled towing resulted in improved performance at 25 and 30 m and an increase in running velocity at distances of 5 – 30 m. Alternate leg bounding that emphasizes horizontal impulse can be used to acutely improve performance in the early acceleration phase, while heavy sled towing seems to be effective in enhancing performance in the later acceleration phase.
Main subject category:
Education - Sport science
Keywords:
Post-activation potentiation, plyometric exercise, sled towing, sprint running, force – velocity profile
Number of references:
121
