Measurement | HF | LF | Total |
Initial | 2.00 ± 1.15 | 3.00 ± 1.24 | 2.50 ± 1.27 |
Final | 1.70 ± 1.63 | 2.60 ± 1.43 | 2.15 ± 1.56 |
Maintenance | 1.90 ± 1.85 | 2.60 ± 1.43 | 2.25 ± 1.65 |