Table 5: Maximum phonation time (MPT) of trial participant.

Phase 1: Training 2x/week Phase 2: Training 1x/week Seven weeks post-study follow-up Normative data for adult females
First test Mid test Last test First test Last test
22.3s 19.1s 16.8s 16.6s 17.2s 14.6s 16 - 35s