TY  - JOUR
AU  - Figueiredo, Pedro
A2  - Figueiredo, Pedro
A2  - Sanders, R.
A2  - Gorski, T.
A2  - Vilas-Boas, J.P.
A2  - Fernandes, R.J.
DB  - BISp
DP  - BISp
KW  - Bewegungsanalyse
KW  - Bewegungsbeobachtung
KW  - Blutlaktat
KW  - Drehwinkel
KW  - Extremität, obere
KW  - Extremität, untere
KW  - Filmkamera
KW  - Flexor
KW  - Gelenkwinkel
KW  - Geschwindigkeitsmessung
KW  - Kinematik
KW  - Kraulschwimmen
KW  - Körpersegment
KW  - Leistungsdiagnostik
KW  - M. biceps brachii
KW  - M. trapezius
KW  - M. triceps brachii
KW  - Muskelaktivität
KW  - Neigungswinkel
KW  - Oberflächen-EMG
KW  - Phasenstruktur
KW  - Schlagfrequenz
KW  - Schwimmgeschwindigkeit
KW  - Schwimmsport
KW  - Schwimmzug
KW  - Sportmedizin
KW  - Trainingswissenschaft
KW  - Tretfrequenz
KW  - Untersuchung, vergleichende
KW  - Varianzanalyse
KW  - Videotechnik
KW  - Wettkampfbedingung
KW  - Wettkampfbelastung
KW  - Winkelgeschwindigkeit
LA  - eng
TI  - Kinematic and electromyographic changes during 200 m front crawl at race pace
TT  - Kinematische und elektromyographische Veränderungen während eines 200-m-Kraulschwimmens bei Renntempo
PY  - 2013
N2  - The purpose of this study was to analyse eventual kinematic and electromyographic changes during a maximal 200 m front crawl at race pace. 10 male international level swimmers performed a 200 m maximal front crawl test. Images were recorded by 2 above and 4 under water cameras, and electromyographic signals (EMG) of 7 upper and lower limbs muscles were analysed for 1 stroke cycle in each 50 m lap. Capillary blood lactate concentrations were collected before and after the test. The variables of interest were: swimming speed, stroke length, stroke and kick frequency, hand angular velocity, upper limb and foot displacement, elbow angle, shoulder and roll angle, duration of stroke phases, and EMG for each muscle in each stroke phase. Generally, the kinematic parameters decreased, and a relative duration increased for the entry and pull phases and decreased for the recovery phase. Muscle activation of flexor carpi radialis, biceps brachii, triceps brachii, peitoral major and upper trapezius increased during specific stroke phases over the test. Blood lactate concentration increased significantly after the test. These findings suggest the occurrence of fatigue, characterised by changes in kinematic parameters and selective changes in upper limbs muscle activation according to muscle action. Verf.-Referat
L2  - https://dx.doi.org/10.1055/s-0032-1321889
DO  - 10.1055/s-0032-1321889
SP  - S. 49-5
SN  - 0172-4622
JO  - International journal of sports medicine
IS  - 1
VL  - 34
M3  - Gedruckte Ressource
M3  - Elektronische Ressource (online)
ID  - PU201304002750
ER  -