Effect of Blocked Versus Random Practice on Physical Therapy Students' Manual Force Modulation

Area of Science:

• Motor Learning
• Physical Therapy Education

Background:

• Understanding effective motor skill acquisition is crucial for physical therapy training.
• Manual force modulation is a fundamental skill in many therapeutic interventions.

Purpose of the Study:

• To investigate the impact of practice organization (blocked vs. random) on learning manual force modulation.
• To determine how force magnitude influences the accuracy of force reproduction in novice learners.

Main Methods:

• Fifty-two novice physical therapy students were randomly assigned to blocked or random practice groups.
• Participants learned to apply varying manual forces, with testing immediately post-training and one week later.
• A three-way mixed design ANOVA analyzed the effects of practice organization, test timing, and force level.

Main Results:

• Blocked practice resulted in significantly more accurate force application compared to random practice.
• Performance was more accurate immediately after training than during the retention test.
• Lower force levels were reproduced more accurately than higher force levels, which showed greater errors.

Conclusions:

• Blocked practice schedules are recommended for teaching manual force modulation in this context.
• Higher force magnitudes present a challenge for accurate reproduction and require consideration in clinical skill development.
• Learner skill, task characteristics, and practice duration may moderate the effectiveness of different practice schedules.