Swimming Athlete" Water Feeling " Quantification Evaluation Experimental Study

Over the years, swimmer "feel" is mainly coached according to the subjective qualitative evaluation by virtue of years of accumulated experience. Despite the presence of certain subjective difference in this experience evaluation, the qualitative evaluation of the accuracy has received professional recognition in the past few years. Though there is no scientific and effective evaluation method that can replace, this screening method has been used in swimming training and scientific research by experience. How to use the scientific quantitative expression rather than coaches’ subjective judgment, And it has been the " bottleneck" problem in the study of " water" theoryat home and abroad.Purposes:in the swimming Quad pulley mounted on a rotating encoder--computer data acquisition system, through the" time displacement curve" athletes get pulley tension displacement, frequency, power and tension average velocity index, comparative analysis of strong and weak" water."" feel" athletes tension curve of different and the difference, for coaches to" feel" the quantitative evaluation to provide data support.Methods:The trainer selects" feel" or put in certain differencel2swimmers in athletes, unknowingly, respectively, for land pulley tension test, analysis of strong and weak" water."" feel" athlete" time displacement curve" differences. After a literature search, have applied this method to a "feel" for quantitative research reports.Results:(1) strong" water" group of male members of60%maximum tensile load, tensile total displacement is larger than the weak" water" group of men (P<0.05);30%load, strong" water" and" water" group of weak force displacement of male members of no difference (P>0.05); strong" water sense" group female players pull total displacement is larger than the weak" water" group of female players (P<0.05).(2) strong" water" group of male members of60%maximum tensile load, frequency and weak force" feel" group had no difference (P>0.05), strong" water" group of male members of30%maximum tensile load, pull more than weak" feel" group (P<0.05); strong" water a sense of group of female players in60%and30%of maximum tensile load, tension times significantly more than the weak" feel" group (P<0.01).(3) strong" water" group of male members60%and30%maximum tensile load, smoothness of less than weak" feel" group (P<0.05). Strong" of water" group of female players60%and30%maximum tensile load, smoothness is significantly smaller than the weak" feel" group (P<0.01). Male and female weak" feel" team tension waveform steep, strong" feel" team pulling smooth waveform.(4) strong" feel" and" feel" weak group60%and30%maximum power load, average tensile speed no difference (P>0.05).(5) strong" water" group of male members60%and30%maximum tensile load, each pulling average work than weak" feel" group (P<0.05); strong" water" group of female members of60%maximum tensile load and weak" feel" group had no difference (P>0.05), strong" water sense" group of female members of30%maximum tensile load, each pulling average work more than weak" feel" group (P<0.05).(6) strong" water" group of male members60%and30%maximum tensile load, tensile total more than weak" feel" group (P<0.05); strong" water" group of female players60%and30%maximum tensile load, tensile power significantly more than the weak" feel" group (P<0.01).Conclusion:(1) strong" feel" athlete tensile displacement than weak" feel" players, while at the same time tensile total displacement is larger than the weak" feel" athletes; strong" feel" athletes tension speed and weak" feel" athletes tension speed did not differ, but at the same time in strong," feel" athletes tension frequency greater than weak" feel" athletes tension times, show weak" feel" athlete in rowing arm movements than the effective range of motion.(2) the weak" feel" athlete of the tensile displacement instability, ups and downs; and" feel" the tensile displacement uniformity, stability of athletes. Tension waveform rise period smoothness, strong" feel" athletes tension waveform smooth, weak" feel" athletes tension waveform steep. That athletes rowing acceleration uniform, the supporting reaction force in.(3) strong" feel" athlete force average work above the weak" feel" athletes, work directly reflect the efficiency of the stroke size.(4) research data description, data analysis and the coaches’ subjective judgment trend, adopting the research methods of swimming athletes "feel" for quantitative evaluation of train of thought is feasible, the further conclusion need to be in the future sports practice further verification.