Session frequency matters more than programme length in speech rehabilitation. Patients who attend therapy more often per week recover faster than those in longer but less frequent programmes, even when total therapy hours are held constant.
Key Takeaways
- ✓Programmes delivering more than five hours of therapy per week produce significantly larger gains, across multiple meta-analyses.
- ✓Repetition count per session is as important as session frequency. Twenty trials per session produces different outcomes than two hundred.
- ✓The most common barriers to intensity are practical: cost, travel, and fatigue. Not clinical.
- ✓Structured home practice is the most evidence-supported way to increase total dose without adding clinic sessions.
What does "intensity" mean in speech therapy?
Intensity has two independent components. The first is session frequency: how many times per week therapy occurs. The second is within-session dose: how many practice trials the patient completes during each session. A patient attending five sessions per week but completing only fifteen trials per session receives less therapeutic dose than one attending twice a week and completing three hundred trials.
Both dimensions matter independently, and they do not compensate for each other.
What does the research show?
A 2024 meta-analysis in PMC reviewed aphasia rehabilitation programmes across multiple therapy types and found that programmes delivering more than five hours per week consistently produced effect sizes roughly twice as large as lower-intensity programmes, after controlling for total treatment hours. Earlier work by Bhogal and colleagues found that studies with positive outcomes delivered an average of 8.8 hours of therapy per week, compared to 2.0 hours per week in studies with non-significant results.
Why do most patients not receive high-intensity therapy?
The barriers are practical, not clinical. Insurance coverage caps session frequency. Travel burden reduces adherence, particularly for older stroke survivors. Post-stroke fatigue makes sustained effort difficult, especially early in recovery.
The most evidence-supported solution is technology-assisted home practice: structured exercises completed between clinic visits, assigned by the treating SLP, and tracked well enough that the clinician can monitor progress and adjust targets without waiting for the next in-person session. Our aphasia home practice guide covers exactly how to structure these sessions.
How much home practice is enough?
Fifteen to twenty minutes of focused, structured daily practice is the most commonly recommended starting point in the clinical literature. The key word is structured: practising the specific exercises the SLP has assigned, not general language tasks or apps selected independently.
ReSpeak gives clinicians the ability to assign specific exercise sets, set target difficulty, and review session data (accuracy, trial count, cueing used) before the next appointment.
