Biology of Sport
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ISSN: 0860-021X
Biology of Sport
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2/2017
vol. 34
 
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abstract:
Original paper

Training-induced changes in physical performance can be achieved without body mass reduction after eight week of strength and injury prevention oriented programme in volleyball female players

M Lehnert
1
,
M Sigmund
1
,
P Lipinska
2
,
R Vařeková
1
,
M Hroch
1
,
Z Xaverová
1
,
P Stastny
3
,
P Háp
1
,
P Zmijewski
4

  1. Faculty of Physical Culture, Palacký University in Olomouc, Czech Republic
  2. Institute of Sport – National Research Institute, Warsaw, Poland
  3. Faculty of Physical Education and Sport, Charles University, Prague, Czech Republic
  4. Faculty of Medicine, University of Information Technology and Management in Rzeszow, Rzeszow, Poland
Biol. Sport 2017;34:205-213
DOI: https://doi.org/10.5114/biolsport.2017.65995
Online publish date: 2017/04/13
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The purpose of the study was to analyse the changes in muscle strength, power, and somatic parameters in elite volleyball players after a specific pre-season training programme aimed at improving jumping and strength performance and injury prevention. Twelve junior female volleyball players participated in an 8-week training programme. Anthropometric characteristics, isokinetic peak torque (PT) single-joint knee flexion (H) and extension (Q) at 60º/s and 180º/s, counter movement jump (CMJ), squat jump (SJ), and reactive strength index (RSI) were measured before and after intervention. Significant moderate effects were found in flexor concentric PT at 60º/s and at 180 º/s in the dominant leg (DL) (18.3±15.1%, likely; 17.8±11.2%, very likely) and in extensor concentric PT at 180º/s (7.4%±7.8%, very likely) in the DL. In the non-dominant leg (NL) significant moderate effects were found in flexor concentric PT at 60º/s and at 180º/s (13.7±11.3%, likely; 13.4±8.0%, very likely) and in extensor concentric PT at 180º/s (10.7±11.5%, very likely). Small to moderate changes were observed for H/QCONV in the DL at 60º/s and 180º/s (15.9±14.1%; 9.6±10.4%, both likely) and in the NL at 60º/s (moderate change, 9.6±11.8%, likely), and small to moderate decreases were detected for H/QFUNC at 180º/s, in both the DL and NL (-7.0±8.3%, likely; -9.5±10.0%, likely). Training-induced changes in jumping performance were trivial (for RSI) to small (for CMJ and SJ). The applied pre-season training programme induced a number of positive changes in physical performance and risk of injury, despite a lack of changes in body mass and composition.

CITATION: Lehnert M, Sigmund M, Lipinska P et al. Training-induced changes in physical performance can be achieved without body mass reduction after eight week of strength and injury prevention oriented programme in volleyball female players. Biol Sport. 2017;34(2):205-213.
keywords:

Fitness, Body composition, Training, Isokinetics, H/Q ratios, Reactive strength index, Magnitude based inference

  
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