Effect of countermovement on power–force–velocity profile

Purpose To study the effect of a countermovement on the lower limb force–velocity ( F – v ) mechanical profile and to experimentally test the influence of F – v mechanical profile on countermovement jump (CMJ) performance, independently from the effect of maximal power output ( P max ). Methods Fift...

Full description

Saved in:
Bibliographic Details
Published in:European journal of applied physiology 2014-11, Vol.114 (11), p.2281-2288
Main Authors: Jiménez-Reyes, Pedro, Samozino, Pierre, Cuadrado-Peñafiel, Víctor, Conceição, Filipe, González-Badillo, Juan José, Morin, Jean-Benoît
Format: Article
Language:English
Subjects:
Adult
Athletes
Biomedical and Life Sciences
Biomedicine
Exercise physiology
Human Physiology
Humans
Jumping
Life Sciences
Male
Mechanical properties
Movement
Neuromuscular system
Occupational Medicine/Industrial Medicine
Original Article
Performance evaluation
Resistance Training - methods
Running - physiology
Sports Medicine
Velocity
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Purpose To study the effect of a countermovement on the lower limb force–velocity ( F – v ) mechanical profile and to experimentally test the influence of F – v mechanical profile on countermovement jump (CMJ) performance, independently from the effect of maximal power output ( P max ). Methods Fifty-four high-level sprinters and jumpers performed vertical maximal CMJ and squat jump (SJ) against five to eight additional loads ranging from 17 to 87 kg. Vertical ground reaction force data were recorded (1,000 Hz) and used to compute center of mass vertical displacement. For each condition, mean force, velocity, and power output were determined over the entire push-off phase of the best trial, and used to determine individual linear F – v relationships and P max . From a previously validated biomechanical model, the optimal F – v profile maximizing jumping performance was determined for each subject and used to compute the individual mechanical F – v imbalance ( Fv IMB ) as the difference between actual and optimal F – v profiles. Results A multiple regression analysis clearly showed ( r 2  = 0.952, P  
ISSN:1439-6319
1439-6327
DOI:10.1007/s00421-014-2947-1