Unit:
Κατεύθυνση Προπονητικό πεδίοLibrary of the School of Physical Education and Sport Science
Author:
Arsoniadis Gavriil
Supervisors info:
Τουμπέκης Ανάργυρος, Επίκουρος Καθηγητής, ΣΕΦΑΑ, ΕΚΠΑ
Τερζής Γεράσιμος, Αναπληρωτής Καθηγητής, ΣΕΦΑΑ, ΕΚΠΑ
Μπογδάνης Γρηγόρης, Επίκουρος Καθηγητής, ΣΕΦΑΑ, ΕΚΠΑ
Original Title:
Άμεση επίδραση της προπόνησης δύναμης εκτός νερού σε παραμέτρους απόδοσης και τεχνικής στην προπόνηση κολύμβησης που ακολουθεί
Translated title:
Acute effect of dryland maximum strength training on performance and biomechanical parameters in the following swimming training
Summary:
The aim of the study was to examine the acute effect of maximum dryland strength training on metabolic and biomechanical parameters in the following swimming training session. Twelve competitive national level male swimmers (n=12, age: 19.0±2.2 years, VO2max: 53.4±9.2 ml/kg/min) performed a 5x200-m test with progressively increasing intensity. A blood sample was collected after each 200-m repetition for the determination of blood lactate concentration and the speed corresponding to blood lactate concentration of 4 mmol/l (V4) was calculated. On two separate experimental conditions, swimmers applied a swimming training session consisted of, 1000 m warm-up, a 10-s tethered swimming sprint and 5x400-m at V4 in a counterbalanced order and one week apart. In the experimental condition (Π) the swimmers completed a dryland maximum strength training 15 minutes before the swimming training session. In the control condition (Ε) the swimmers participated in the swimming training session only. Blood lactate concentration [La-], oxygen uptake (VO2), heart rate (HR) as well as stroke rate (SR), stroke length (SL) and arm-stroke efficiency (ηF) were measured during the 5X400 m. The [La-] was higher in Π compared to Ε condition after the fifth repetition of 400-m (6.4±2.7 vs. 4.6±2.8 mmol/l, p<0.05). ηF was maintained, SL was decreased and SR was increased in Π, but was unchanged during 400 m repetitions during Ε condition (p<0.05). Maximum strength training 15 minutes before the swimming training affected negatively the biomechanical variables (SR and SL) and increased the blood lactate concentration during a submaximal intensity training set with a constant velocity. Changes induced after maximum strength training are possibly attributed to a reduced swimming economy and/or to increased anaerobic metabolism.
Main subject category:
Athletic
Keywords:
maximum muscle strength training, performance, biomechanical parameters, competitive swimming
