2013, Volume 9, Issue 1
The method to evaluate the body balance disturbation tolerance skills – validation procedure of the “Rotational Test”
Roman Maciej Kalina1, Władysław Jagiełło2, Bartłomiej Jan Barczyński3
1Faculty of Physiotherapy, Department of Health Promotion & Research Methodology, Academy of Physical Education, Katowice, Poland
2Gdańsk University of Physical Education and Sports, Faculty of Physical Education, Gdańsk, Poland
3Index Copernicus International S.A., Warsaw, Poland
Author for correspondence: Roman Maciej Kalina; Faculty of Physiotherapy, Department of Health Promotion & Research Methodology, Academy of Physical Education, Katowice, Poland; email: kom.kalina[at]op.pl
Background and Study Aim: Body balance disturbation tolerance skills (BBDTS) – defined as the keeping of vertical posture in the circumstances of the fall threat. Aim of this study is to appropriateness and reliability of “Rotational Test” (RT) as a BBDTS measurement tool.
Material and Methods: RT is a 6 tasks system (consecutive jumps with body rotation of 360° alternately to the right and to the left), the overall result is the sum of the six tasks and includes from 0 to 18 contractual points. As the main criteria of appropriateness we assumed: criterion oriented validity (concurrent validity and predictive validity); content validity; construct validity. Reliability RT is based on “test-retest” formula. Considering all phases of the validation process we examined 1398 people aged from 6 to 60 years.
Results: RT individual results contained from 0 to 18 points, however in homogeneous groups RT average result from 0.33 to 11.06 points respectively. RT meets methodological criteria appropriateness and reliability tools which indirectly indicates the quality of functioning of the body mechanisms responsible for stability and postural control. A reliability of the RT is high (correlation “test-retest” from 0.828 to 0.849).
Conclusions: RT is sensitive to the influence of factors modifying BBDTS - especially adaptive changes under the influence of long-term training, but also the effects of the current state of the body and/or a sudden change in the conditions of motor action. Thus, RT can be widely used in rehabilitation, health-related training, motor control (sport, physical education, etc.), the selection procedures to the army, police, emergency services, etc.
Key words: appropriateness, postural control, reliability, safe fall, stability