Table 2. Repeated measures correlations between different heart rate variability and direct current potential variables with competitive performance for four elite international long jump athletes in a 16-week period that included the qualification for and competition at the 2016 Olympic Games.
|
r [95% CI] |
p |
| LnRMSSD |
-0.46 [-0.76, -0.01] |
0.03* |
| LnRMSSD %CV |
0.41 [0.00, 0.71] |
0.05* |
| R-R interval |
-0.17 [-0.58, 0.31] |
0.46 |
| LnRMSSD:RR |
-0.28 [-0.65, 0.21] |
0.23 |
| LnRMSSD-7 |
-0.55 [-0.79, -0.17] |
<0.01** |
| LnRMSSD:RR-7 |
-0.01 [-0.43, 0.42] |
0.97 |
| DC |
0.09 [-0.40, 0.55] |
0.69 |
| DC-7 |
0.26 [-0.22, 0.64] |
0.26 |
* - p <0.05.LnRMSSD - natural logarithm of the square of the mean sum of the squared differences between R-R intervals, LnRMSSD %CV - LnRMSSD coefficient of variation, LnRMSSD:RR - LnRMSSD to R-R interval ratio, LnRMSSD-7 – LnRMSSD averaged over 7 days, LnRMSSD:RR-7 - LnRMSSD:RR averaged over 7 days, DC – direct current potential, DC-7 – direct current potential averaged over 7 days, r – correlation coefficient; CI – confidence interval,
