Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
Androit-APP Journal of Sports Science and Medicine
Views
6439
Download
42
from September 2014
 
©Journal of Sports Science and Medicine ( 2014 ) 13 , 439 - 443

Research article
Correct, Fake and Absent Pre-Information Does Not Affect the Occurrence and Magnitude of the Bilateral Force Deficit
Lars Donath1,3, , Tobias Siebert2,4, Oliver Faude1, Christian Puta3
Author Information
1 Institute of Exercise and Health Sciences, University of Basel, Basel, Switzerland
2 Institute of Sport Sciences, Department of Motion Science, University of Jena, Jena, Germany
3 Institute of Sport Sciences, Department of Sports Medicine and Health Promotion, University of Jena, Jena, Germany
4 University of Stuttgart, Stuttgart, Germany

Lars Donath
✉ Institute of Exercise and Health Science, Birsstrasse 320B, 4052 Basel, Switzerland
Email: lars.donath@unibas.ch
Publish Date
Received: 09-09-2013
Accepted: 13-02-2014
Published (online): 01-05-2014
Share this article
 
 
ABSTRACT

The present study examined whether different pre-information conditions could lead to a volitional modulation of the occurrence and magnitude of the bilateral force deficit (BFD) during isometric leg press. Twenty trained male adults (age: 24.5 ± 1.7 years; weight: 77.5 ± 7.1 kg; height: 1.81 ± 0.05 m) were examined on three days within a week. Isometric leg press was performed on a negatively inclined leg press slide. Each participant completed three maximal isometric strength test sessions with different pre-information conditions given in a graphical chart: no pre-information (NPI; first day), false pre-information (FPI; bilateral force > sum of unilateral forces; second or third day) and correct pre-information (CPI; bilateral force < sum of unilateral forces; second or third day) during bilateral, unilateral-left and unilateral-right leg-press. The sum of left- and right-sided force values were calculated for bilateral (FBL = FBL_left + FBL_right) and unilateral (FUL = FUL_left + FUL_right) analyses. Force data for NPI revealed: Mean (SD): FUL_NPI = 3023 N (435) vs. FBL_NPI = 2812 (453); FPI showed FUL_FPI = 3013 N (459) vs. FBL_FPI = 2843 (446) and the CPI revealed FUL_CPI = 3035 (425) vs. FBL_CPI = 2844 (385). The three (no, false, correct) x 2 (FUL, FBL) rANOVA revealed a high significant main effect of Force (F = 61.82, p < 0.001). No significant main effect of the factor Condition and no significant interaction between Force x Condition was observed. The BFD does not rely on the trueness of the given pre-information (no, false, correct). Cognition-based volitional influences on the BFD on supra-spinal level seem negligible.

Key words: Bilateral force deficit, strength training, lower extremities, unilateral strength


           Key Points
  • BFD is reliable occurring phenomenon
  • Available theoretical knowledge does not affect the BFD
  • Alternating sport should include alternating strength exercises
 
 
Home Issues About Authors
Contact Current Editorial board Authors instructions
Email alerts In Press Mission For Reviewers
Archive Scope
Supplements Statistics
Most Read Articles
  Most Cited Articles
 
    
 
JSSM | Copyright 2001-2019 | All rights reserved. | LEGAL NOTICES | Publisher

It is forbidden the total or partial reproduction of this web site and the published materials, the treatment of its database, any kind of transition and for any means, either electronic, mechanic or other methods, without the previous written permission of the JSSM.

This work is licensed under a Creative Commons License Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.