Handgrip Muscle Force Characteristics With General Reference Values at Chelyabinsk and Belgrade Students

Abstract

The Aim. The aim of this paper is to define the contractile characteristics of maximal isometric handgrip force and to establish possible differences between the students of the Universities of Chelyabinsk and Belgrade. The secondary aim is to create a practically applicable initial model in order to explore the mentioned characteristics in the future. Material and methods. For the purposes of this research, the overall sample of 225 subjects was tested. 91 subjects were from Russia and 134 were from Serbia. The results were gathered using a strain gage and a standardized isometric handgrip test protocol. The contractile properties of HG muscle force were measured in relation to three different contractile dimensions: the maximal muscle force (F max ), the maximal explosive muscle force (RFD max ), the time need for achieving maximal (tF max ) and maximal explosive (tRFD max ) muscle force. Results. This study has shown that there are no generally statistically significant differences for all observed variables of HG contractile characteristics between tested Russian and Serbian students. Based on the results of the present study, six different models of the equation for evaluation of HG contractile characteristics of female and male students, i.e. young adults, were made. All defined models are highly statistically significant, accurate and sensitive in the prediction of the general distributive position of an individual or particular group of subjects in relation to the measured contractile characteristics. Conclusions. The obtained results can generally indicate the stability of potential to exert the given contractile characteristic in relation to the population of similar evolutionary (Slavs) at different geographical background.

Multidimensional Prediction Approach in the Assessment of Male Volleyball Players’ Optimal Body Composition: The Case of Two Elite European Teams

“…The study protocol was consisted of basic anthropometric parameters and body composition measurements according to procedures previously described earlier (Dopsaj et al, 2019;Bankovic et al). Measurement of body height was performed using an anthropometer (GPM, Swiss made) with a measurement accuracy of 0.001 m, while measurement of body composition was carried out using the method of electrical multichannel bioimpedance (BIA) with an InBody 720 body composition analysis device (Biospace Co., Ltd, Seoul, Korea).…”

“…In this study, 10 variables were used: one longitudinal, and nine as a system of body composition indicators. Considering body composition variables, three of which were primary, and six were derived (index) variables, divided into three categories: voluminously independent, longitudinally independent, and index variable (Santos et al;Dopsaj et al, 2019;Kukic et al). In this manner, the original variables of body mass, as a measure of total body mass quantity, skeletal muscle mass, as a measure of the contractile tissue amount, and fat mass, as a measure of the ballast tissue amount, are corrected with regards to the individual measure of body longitudinality and voluminosity.…”

“…Considering the methodological aspect, the previously mentioned characteristics, as specific dimensions of the body composition, could be used to create mathematical models for assessing optimal body composition status. These models could be used for the screening purposes in the daily routine assessment process, as a sport-specific level, or even playing position-specific level control (Nikolaidis et al;Santos et al;Kukic et al, 2018;Dopsaj et al, 2019;Báez-San-Martín et al, 2019). Considering all the previously mentioned facts and the need to establish quick and sport-specific methods for assessing the body composition status of top volleyball players, this research aims to define a multidimensional model of optimal body composition screening for top volleyball players.…”

Relationship among the quality of cognitive abilities, depression symptoms, and various aspects of handgrip strength in the elderly

“…The evaluation of the contractile characteristics 21 with visual feedback on the computer for as long as possible (time was measured in seconds). Due to possible fatigue, only one attempt was carried out.…”

Maximal and explosive strength normative data for handgrip test according to gender: international standardization approach

“…In daily life, hands are the basic organs for manipulative tasks of the human body, and they are specialized for various motor skills to interact with physical objects [2]. This is the biologi-cal reason why the handgrip movement and achieved strength dimensions are recognized as a limiting factor in all the manipulative activities by the upper part of the body, regardless of whether this refers to daily activities, work and the professional environment, or sports [3][4][5].…”