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Values of the Pearson correlation coefficient between teenagers’ initial features and their fitness levels.
| Feature | HRrest | HRincrease | HRmax | HRreserve | SpO2mean | SpO2SD | TD | HRdescent | HRinstant | |
|---|---|---|---|---|---|---|---|---|---|---|
| PCC | Boy | 0.392 | 0.598 | 0.440 | 0.113 | −0.136 | −0.493 | 0.370 | 0.492 | 0.625 |
| Girl | 0.826 | 0.676 | 0.699 | −0.119 | 0.082 | −0.529 | 0.299 | 0.450 | 0.830 | |
