Kinetic and kinematic patterns during high intensity clean movement: searching for optimal load

Autoren

Achraf Ammar
Bryan L Riemann
Liwa Masmoudi
Marcel Blaumann
Osama Abdelkarim
Anita Hökelmann

DOI

10.1080/02640414.2017.1376521

eISSN

1466-447X

ISSN

0264-0414

Ausgabe der Veröffentlichung

12

Zeitschrift

Journal of Sports Sciences

Sprache

en

Online publication date

2017

Paginierung

1319 - 1330

Datum der Veröffentlichung

2018

Status

Published

Herausgeber

Informa UK Limited

Herausgeber URL

http://dx.doi.org/10.1080/02640414.2017.1376521

Datum der Datenerfassung

2018

Titel

Kinetic and kinematic patterns during high intensity clean movement: searching for optimal load

Ausgabe der Zeitschrift

36

Data source: Crossref

Abstract

The aim of the present study was to investigate loading effects on kinematic and kinetic variables among elite-weightlifters in order to identify an optimal training load to maximize power production for clean-movement. Nine elite-weightlifter (age: 24 ± 4years, body-mass: 77 ± 6.5kg, height: 176 ± 6.1cm and 1RM clean: 170 ± 5kg) performed 2 separate repetitions of the clean using 85, 90, 95% and 100%, in a randomized order, while standing on a force platform and being recorded using 3D-capture-system. Differences in kinematics (barbell displacement, velocity and acceleration) and kinetics (power, vertical ground reaction force (vGRF), rate of force development (RFD), and work) across the loads were statistically assessed. Results revealed significant load effects for the majority of the studied parameters (p < 0.01) and showed that typical bar-displacement, greatest bar-velocity and peak-power were achieved at 85 and 90% 1RM (p < 0.001). Additionally greater average power was shown for 90 and 95% (p < 0.01) and greater work and vGRF were shown for 90, 95 and 100% than 85% 1RM (p < 0.05). Load had no significant effect on peak-vGRF and peak-RFD (p > 0.05). The results of this study, suggest 90% 1RM to be the most advantageous load to train explosive-force and to enhance power-outputs while maintaining technical efficiency in elite-weightlifters.

Addresses

a Research Unit: Education, Motricity, Sport and Health, UR15JS01, High Institute of Sport and Physical Education of Sfax , Sfax University , Sfax , Tunisia.

Autoren

Achraf Ammar
Bryan L Riemann
Liwa Masmoudi
Marcel Blaumann
Osama Abdelkarim
Anita Hökelmann

DOI

10.1080/02640414.2017.1376521

eISSN

1466-447X

Externe Identifier

PubMed Identifier: 28895467

Funding acknowledgements

German Academic Exchange Service (DAAD):

Open access

false

ISSN

0264-0414

Ausgabe der Veröffentlichung

12

Zeitschrift

Journal of sports sciences

Schlüsselwörter

Muscle, Skeletal
Humans
Acceleration
Weight Lifting
Adult
Male
Muscle Strength
Athletic Performance
Young Adult
Biomechanical Phenomena

Sprache

eng

Medium

Print-Electronic

Online publication date

2017

Paginierung

1319 - 1330

Datum der Veröffentlichung

2018

Status

Published

Datum der Datenerfassung

2017

Titel

Kinetic and kinematic patterns during high intensity clean movement: searching for optimal load.

Sub types

Journal Article

Ausgabe der Zeitschrift

36

Data source: Europe PubMed Central

Abstract

The aim of the present study was to investigate loading effects on kinematic and kinetic variables among elite-weightlifters in order to identify an optimal training load to maximize power production for clean-movement. Nine elite-weightlifter (age: 24 ± 4years, body-mass: 77 ± 6.5kg, height: 176 ± 6.1cm and 1RM clean: 170 ± 5kg) performed 2 separate repetitions of the clean using 85, 90, 95% and 100%, in a randomized order, while standing on a force platform and being recorded using 3D-capture-system. Differences in kinematics (barbell displacement, velocity and acceleration) and kinetics (power, vertical ground reaction force (vGRF), rate of force development (RFD), and work) across the loads were statistically assessed. Results revealed significant load effects for the majority of the studied parameters (p < 0.01) and showed that typical bar-displacement, greatest bar-velocity and peak-power were achieved at 85 and 90% 1RM (p < 0.001). Additionally greater average power was shown for 90 and 95% (p < 0.01) and greater work and vGRF were shown for 90, 95 and 100% than 85% 1RM (p < 0.05). Load had no significant effect on peak-vGRF and peak-RFD (p > 0.05). The results of this study, suggest 90% 1RM to be the most advantageous load to train explosive-force and to enhance power-outputs while maintaining technical efficiency in elite-weightlifters.

Autoren

Achraf Ammar
Bryan L Riemann
Liwa Masmoudi
Marcel Blaumann
Osama Abdelkarim
Anita Hökelmann

Autoren-URL

https://www.ncbi.nlm.nih.gov/pubmed/28895467

DOI

10.1080/02640414.2017.1376521

eISSN

1466-447X

Ausgabe der Veröffentlichung

12

Zeitschrift

J Sports Sci

Schlüsselwörter

Loading
bar path
power
rate of force development
vertical reaction force
Acceleration
Adult
Athletic Performance
Biomechanical Phenomena
Humans
Male
Muscle Strength
Muscle, Skeletal
Weight Lifting
Young Adult

Sprache

eng

Country

England

Paginierung

1319 - 1330

Datum der Veröffentlichung

2018

Status

Published

Datum, an dem der Datensatz öffentlich gemacht wurde

2018

Titel

Kinetic and kinematic patterns during high intensity clean movement: searching for optimal load.

Sub types

Journal Article

Ausgabe der Zeitschrift

36

Data source: PubMed

Kinetic and kinematic patterns during high intensity clean movement: searching for optimal load

Tools