Butterfly swimming technique variations during an exhaustive
swim exercise

a 2017

Butterfly swimming technique variations during an exhaustive swim exercise

KALICHOVÁ, Miriam; Marek POLACH; Miloš LUKÁŠEK a Dita HLAVOŇOVÁ

Základní údaje

Originální název

Butterfly swimming technique variations during an exhaustive swim exercise

Autoři

KALICHOVÁ, Miriam; Marek POLACH; Miloš LUKÁŠEK a Dita HLAVOŇOVÁ

Vydání

11th INTERNATIONAL CONFERENCE ON KINANTHROPOLOGY "Sport and Quality ofLife" 2017

Další údaje

Jazyk

angličtina

Typ výsledku

Konferenční abstrakt

Obor

30306 Sport and fitness sciences

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14510/17:00100489

Organizační jednotka

Fakulta sportovních studií

Klíčová slova anglicky

speedometry; fatigue; lactate test; stroke technique

Štítky

rivok

Příznaky

Mezinárodní význam

Změněno: 23. 4. 2018 13:37, Mgr. Pavlína Roučová, DiS.

Anotace

V originále

Purpose: Fatigue significantly influences not only physiological parameters during swimming, but also the technique of swimming stroke. Fatigue, therefore, affects also swimmers performance. This study aims to find out to what extent fatigue influences the technical execution of the butterfly stroke with and without breathing. Method:This work is structured as a case study. The participant was one of the best Czech and European swimmers, a 50 m butterfly Czech record holder. The swimmer performed a standardized lactate test - 8 x 50 metres butterfly swim.In selected moments his heart frequency was measured using a sport tester Polar and a blood sample was taken for lactate level test using Lactate scout+ device. A speedometer “Swim-Speedo-Meter” fixed on the belt and a video record was used for the stroke technique analysis. Temporal, spatial and speed characteristics were evaluated from the acquired curve of the swimmers speed. Results: Maximum heart frequency (172 bpm) as well as blood lactate level (14.2 mmol·l-1 ) was reached after fifth 50m track. There was a huge increase in stroke frequency with increasing fatigue. This fact resulted in the decrease in stroke duration from initial 1.37 s to 1.09 s in stroke with breathing and from 1.29 s to 1.06 s in a stroke without breathing. Significant changes during the transition phase from “insweep” to “upsweep” were observed, with a huge decrease in speed. Furthermore, accumulated fatigue caused that the speed developed during “insweep” phase was smaller in the second part of lactate test compared to the previous parts. These major differences in technique negatively influence stroke effectiveness.Conclusion: The core importance lies in between relations of measured variables that show changes of butterfly stroke technique as swimmer fatigue increased. We recommend to focus on strength and dynamic preparation during training, mainly leg movement during the second kick. We also recommend regular speedometer measurements which can help control changes in technique causedby factors such as fatigue, injury, different period of training annual cycle, etc.

Citovat

KALICHOVÁ, Miriam; Marek POLACH; Miloš LUKÁŠEK a Dita HLAVOŇOVÁ. Butterfly swimming technique variations during an exhaustive swim exercise. In 11th INTERNATIONAL CONFERENCE ON KINANTHROPOLOGY "Sport and Quality ofLife". 2017.

@proceedings{1412249,
   author = {Kalichová, Miriam and Polach, Marek and Lukášek, Miloš and Hlavoňová, Dita},
   booktitle = {11th INTERNATIONAL CONFERENCE ON KINANTHROPOLOGY "Sport and Quality ofLife"},
   keywords = {speedometry; fatigue; lactate test; stroke technique},
   language = {eng},
   title = {Butterfly swimming technique variations during an exhaustive swim exercise},
   year = {2017}
}

TY  - CONF
ID  - 1412249
AU  - Kalichová, Miriam - Polach, Marek - Lukášek, Miloš - Hlavoňová, Dita
PY  - 2017
TI  - Butterfly swimming technique variations during an exhaustive swim exercise
KW  - speedometry
KW  - fatigue
KW  - lactate test
KW  - stroke technique
N2  - Purpose: Fatigue significantly influences not only physiological parameters during swimming, but also the technique of swimming stroke. Fatigue, therefore, affects also swimmers performance. This study aims to find out to what extent fatigue influences the technical execution of the butterfly stroke with and without breathing. Method:This work is structured as a case study. The participant was one of the best Czech and European swimmers, a 50 m butterfly Czech record holder. The swimmer performed a standardized lactate test - 8 x 50 metres butterfly swim.In selected moments his heart frequency was measured using a sport tester Polar and a blood sample was taken for lactate level test using Lactate scout+ device. A speedometer “Swim-Speedo-Meter” fixed on the belt and a video record was used for the stroke technique analysis. Temporal, spatial and speed characteristics were evaluated from the acquired curve of the swimmers speed. Results: Maximum heart frequency (172 bpm) as well as blood lactate level (14.2 mmol·l-1 ) was reached after fifth 50m track. There was a huge increase in stroke frequency with increasing fatigue. This fact resulted in the decrease in stroke duration from initial 1.37 s to 1.09 s in stroke with breathing and from 1.29 s to 1.06 s in a stroke without breathing. Significant changes during the transition phase from “insweep” to “upsweep” were observed, with a huge decrease in speed. Furthermore, accumulated fatigue caused that the speed developed during “insweep” phase was smaller in the second part of lactate test compared to the previous parts. These major differences in technique negatively influence stroke effectiveness.Conclusion: The core importance lies in between relations of measured variables that show changes of butterfly stroke technique as swimmer fatigue increased. We recommend to focus on strength and dynamic preparation during training, mainly leg movement during the second kick. We also recommend regular speedometer measurements which can help control changes in technique causedby factors such as fatigue, injury, different period of training annual cycle, etc.
ER  -

KALICHOVÁ, Miriam; Marek POLACH; Miloš LUKÁŠEK a Dita HLAVOŇOVÁ. Butterfly swimming technique variations during an exhaustive swim exercise. In \textit{11th INTERNATIONAL CONFERENCE ON KINANTHROPOLOGY ''Sport and Quality ofLife''}. 2017.

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