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Three dimensional influence factors on standard values and standard value deviations of one dimensional isometric trunk strength measurements

  • The question of connections between pain and strength development and the influence of muscular imbalances on the development of pain and strength deficits has been of interest for therapy scientists for decades. During the examination period from June until December 2014, one-dimensional isometric trunk strength measurements were carried out on healthy, middle-aged probands using the biofeedback device "Pegasus". The aim was to check out the predefined standard values of the company BfMC and generate standard value ranges for muscular imbalances. Furthermore, these examinations were used to capture occurring forces on other levels to assess their impact on one-dimensional measurements. A standardized warm up was followed by the determination of the maximum trunk strength in flexion, extension, rotation and lateral inclination. Two measurements on 54 probands at the age of 22.8 ± 3.3 years and an average BMI of 28.9 ± 3.2 were conducted. In addition, the deviating forces were determined. In target-actual value comparison, theThe question of connections between pain and strength development and the influence of muscular imbalances on the development of pain and strength deficits has been of interest for therapy scientists for decades. During the examination period from June until December 2014, one-dimensional isometric trunk strength measurements were carried out on healthy, middle-aged probands using the biofeedback device "Pegasus". The aim was to check out the predefined standard values of the company BfMC and generate standard value ranges for muscular imbalances. Furthermore, these examinations were used to capture occurring forces on other levels to assess their impact on one-dimensional measurements. A standardized warm up was followed by the determination of the maximum trunk strength in flexion, extension, rotation and lateral inclination. Two measurements on 54 probands at the age of 22.8 ± 3.3 years and an average BMI of 28.9 ± 3.2 were conducted. In addition, the deviating forces were determined. In target-actual value comparison, the probands were about 17.1% above the normal range of their respective age groups, with an average isometric trunk strength development in all six directions of movement of 835Nm. For the male probands it was also found out that they positioned themselves 63.6% above (average?). The female probands in total were also within the normal range, but 200Nm less power was generated and 34% did not reach the normal range. Looking at the deviating forces, it is noticeable that 549.1 Nm (54%) were also applied in the other anatomic plains. Here, there were clear differences between the deviating forces in the isometric testing in the sagittal and frontal plain. In the measurement results of the sagittal plain (Ext; Flex), the deviating forces were 45.8Nm (29.9%) on average in the frontal and transverse direction. In the measurement results of lateral inclination and rotation, the deviating forces were 95.3% and 110% in sagittal and transverse direction. As a result, it can be noted that, despite the absence of pain, postural imbalances and diseases of the spine, more than half of the forces cannot be generated according to the axis. At this, synergistic functions seem to be physiological in this scope, in order to produce maximum plain equitable forces which basically questions one-dimensional measurements. The test results show significant deviations from the normal range, which raises the issue of the relevance of the defined standard values based on the evaluation of isometric force development. Further studies will have to prove the relevance of three-dimensional maximum force measurements.show moreshow less

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Metadaten
Author: Jana Kirschner, Sven MichelGND, Annegret Nitscher, Titus Martin, Alexander Braun, Robert PrillORCiDGND
URL:http://mdi-online.net/cms/images/Streszczenia_Abstracts_MDI2016_web.pdf
ISBN:978-83-88380-74-7
Title of the source (Polnisch):Międzynarodowy Dzień Inwalidy, XXII-edycja "Życie bez bólu, Zdrowe dzieci - zdrowa Europa", Zgorzelec, 18-20 marca 2016
Publisher:Obrzeża Oficyna Wydawnicza
Place of publication:Zgorzelec
Document Type:Conference Proceeding
Language:English
Year of publication:2016
Tag:isometric; trunk strenght
First Page:66
Last Page:67
Faculty/Chair:Fakultät 4 Humanwissenschaften (bis 2023 Soziale Arbeit, Gesundheit und Musik) / FG Therapiewissenschaften II
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