Convergent validation of training loads measurements in taekwondo athletes

The purpose of this study was to analyze if both the Banister's TRIMP method and the Foster method are convergent to calculate the training loads in Taekwondo athletes. There was a total number of 8 Taekwondo athletes as participants, of which composed of 4 women and 4 men. Together, the participants performed a total number of 61 training sessions. The study also had a significant Pearson correlation found between the Banister’s TRIMP and Foster’s method (r= 0.33, p ˂ 0.01), but according to Lin’s Concordance Correlation Coefficient, the measurement was very low (Rc between 0.002 and 0.022). An individual correlation was also made through the Pearson Product-Moment between the two methods and through this it was discovered that only one participant had a significant association (r=0.812, p˂0.014), but with Lin’s Concordance Correlation Coefficient, the result was low (Rc between -0.004 and 0.037). In conclusion, both the Banister's TRIMP method and the Foster method are not convergent to measure the training loads in Taekwondo athletes.