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Descriptive statistics (mean and standard deviation) for reading SPL (in dB) at 30cm for the healthy controls (N = 20), LSVT LOUD (N = 20), LSVT ARTIC (N = 20), and Untreated (N = 20) groups.
| Group | Pre-Treatment | Post-Treatment | Follow-up |
|---|---|---|---|
| Healthy controls | 73.0 [2.22] | 73.4 [2.51] | 73.1 [2.19] |
| LSVT LOUD | 71.9 [2.86] | 78.0 [2.85] | 75.7 [2.14] |
| LSVT ARTIC | 72.9 [3.12] | 73.6 [3.34] | 73.2 [3.05] |
| Untreated PD | 71.5 [3.23] | 72.3 [2.81] | 71.8 [3.16] |
