The purpopse of this study was to determine the effect of pyridoxine supplementation with ballet exercise on cardiorespiratory function, cell blood component, bone lipoprotein, serum lipid lipoprotein and amino-acid metabolism
14 college female balle...
The purpopse of this study was to determine the effect of pyridoxine supplementation with ballet exercise on cardiorespiratory function, cell blood component, bone lipoprotein, serum lipid lipoprotein and amino-acid metabolism
14 college female ballet dancers were participated in 30 days study for a double blind and subjects were randomly assigned to one of the three groups, i.e., Group Ⅰ(n=4): placebo (2.4mg/day); Group Ⅱ(n=5): pyridoxine (1.6mg/day); Group Ⅲ(n=5): pyridoxine(2.4mg/day) with ballet exercise 3-5 times per week.
Study subjects measured ventilation(VE), maximal oxygen uptake(O₂max), respiratory quotient(RQ), O₂pulse, maximal heart rate(HRmax), exercise time(ET), exercise work(EW), rating perceived exertion(RPE), white blood cell(WBC), red blood cell(RBC), hematocrit(HT), hemoglobin(HB), osteocalcin(OS), calcium(CA), total cholesterol(TC), HDL-cholesterol(HDL-C), LDL-cholesterol(LDL-C), TC/HDL-C ratio, triglyceride(TG), free fat acid(FFA), isoleucine, leucine, lysine, phenylaianine, methionire, threonine, tryptophan, valine, before and after the treatment.
Modified Bruce Protocol, Radioimmunoassy(RIA), Enzymatic Colorimetric and HPLC were used to method of experiment.
Analysis of Covariance (ANCOVA), Multiple Range Test(Scheffe), Analysis of Correlation, Analysis of Regression, and Dubin Watson Test were used to determine the statistical significance.
There were no group differences in the VE, O₂max, RQ, HRmax, RPE, EW, ET, HT, HB, Osteocalcin, TC, HDL-C, LDL-C, TC/HDL-C ratio, TG, FFA, and essential amino acids, but O₂pulse, WBC, RBC, calcium were significantly changed(p〈.05). And, there were significantly differences between O₂max, TC/HDL-C ratio, isoleucine, leucine, valine, and percent body fat (p〈.05).
The result of this study does not lend support to the contention that pyridoxine intake has much practical impact on ballet exercise performance as a ergogenic acid. However, it does appear that several significant research topics in pyridoxine biochemistry metabolism as well as ballet dancer and nutrition can be explored profitably in the future using experimental designs involving interaction between pyridoxine status and exercise performance.