Poster De Un Test De Isocinetico De Tronco

Reliability of an isokinetic test to assess trunk muscular strength and endurance
García-Vaquero, MP., Barbado, D., Juan-Recio, C., Vera-Garcia, FJ.
Sports Research Centre, Miguel HernándezUniversity of Elche (Alicante), Spain.
Introduction
Isokinetic tests are commonly used in laboratory settings to measure trunk muscular strength and endurance. However, reliable protocols to assessmuscular endurance are lacking. Parameters - To assess trunk muscular strength: Peak Torque (PT) and Total Work (TW) for each trail. - To assess trunk muscular endurance: The PT and TW decrease over trials.Data Analysis - Relative and absolute reliability: ICC and SEM, respectively. - Learning effect: ANOVA with repeated measures. -30º 0º +20º
N·m 450 400
350

PT EXT

N·m 270

2 3 4

PT FLEX3 4

230

300 250
200

190

Objectives
The aim of this study was to analyze the reliability of a new flexion-extension isokinetic trunk test to measure trunk muscular strength andendurance, and to examine the effect of repetition on the measurements.

150

TRIAL 1 Joules
2450

TRIAL 2
3 4

TRIAL 3

TRIAL 4
Joules

TRIAL 1
2 3 4

TRIAL 2

TRIAL 3

TRIAL 4

TWEXT

TW FLEX
3 4
4

1400
1200

Materials & Methods
Participants Forty physically active volunteers took part in this study (age: 23.5 ± 3.19 years, mass: 70.87 ± 10.68 kg, height: 172.81 ±7.52 cm). Procedure
Table 1. Characteristics of the isokinetic protocol.
Figure 1. Images of a participant during the isokinetic trunk test throughout the ROM.

2200 1950 1700
1450 1200

1000800
600

TRIAL 1

TRIAL 2

TRIAL 3

TRIAL 4

TRIAL 1

TRIAL 2

TRIAL 3

TRIAL 4

Figure 2. Evolution of extension and flexion PT and TW throughout session 1. The numbers over theerror bars mean significant differences of this trial with the trials indicated by the referred numbers.

TRIALS/REP REST CONTRACTION MOVEMENT

4/15 1 min between trials Concentric Flexion-extension...