The influence of barbell’s weight, lifting technique and skills on weightlifter’s blood pressure and heart rate

Abstract

Abstract. Article presents hodographs of the arterial blood pressure relation to heart-rate enabling to evaluate organism sensitivity of trained weightlifter to the magnitude of lifted weight, lifting technique and weight repeatability. Variation regularities of the latter relation have been explained and approximate criterions of relative stability and skill level were formulated. Analysing variations of the relation of the arterial blood pressure to the heart-rate and barbell's lifting accelerations and velocities the weaknesses of trained weightlifters have been explained. It has shown that in most cases the blood pressure of the weightlifter can increase 8-13% after the barbell drop.Keywords: blood pressure, heart rate, snatch, clean and jerk, lifting accelerations and velocities, organism reaction to weight, indexes of relative stability and technique, hodograph. IntroductionThe reaction of weightlifter's organism to the lifted weight and lifting technique can be evaluated analysing the variations of the arterial blood pressure and the heart-rate. Regularities of variations can give insight on weightlifter's skill level. High competition results can be achieved having mastered optimal trajectories of barbell's lifting, i.e. its kinematics. Barbell's lifting kinematics during snatch and clean and jerk has been fairly explored in various scientific works [2,3,4,5,6,7]. For example, in the article [5] authors have analysed the parameters of elite athletes' lifting trajectories during 2010 weightlifting championship. They've determined relation of the final result to common barbell's trajectories of the women weightlifters. Despite many research works on kinematics of the barbell only few pay attention to variations of arterial blood pressure and heart-rate after the barbell drop, however presented results are only descriptive [1,3,8,10]. In these work regularities of arterial blood pressure and heart-rate variations are not explored. Some authors attempted to analyse the regularities of time variations of arterial blood pressure and heart rate in response to constant load [9]. A lack of works studies reaction of the organism to load and lifting manner.The goal of present research is to investigate relationship between the arterial blood pressure of the weightlifter and heart rate after dropping the barbell, understand the variation tendencies of latter parameters and to formulate criterions of organism's sensitivity reaction to lifted weight and technique. By analysing barbell's lifting accelerations and velocities to investigate weaknesses of the athlete and approximately evaluate his prospective abilities in chosen sport.