Effect of the post-learning period on the accuracy and self-efficacy of measuring the joint range of motion.
Ryohei Yamamoto, Yushin Yoshizato, Takaki Imai and 1 others
PMID 37791003WHAT IT FOUND
Knee joint measurement error decreased significantly with longer time since learning, but elbow joint error did not.
Student self-efficacy scores showed no significant difference across time periods and did not correlate with actual measurement accuracy.
Key findings
01Measurement error for the knee joint was significantly higher in students who learned the technique less than one year ago compared to those who learned it 1-2 years ago or more than 2 years ago.
02There was no significant difference in measurement error for the elbow joint across the different post-learning periods.
03Self-efficacy scores did not differ significantly between groups based on how long ago they learned the technique, and self-efficacy did not correlate with measurement accuracy for either joint.
STILL TO COME
How it was doneWhat they foundWhat it means for PTs
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What it does not show
The study only examined knee and elbow flexion, so results may not apply to other joints or movements. Self-efficacy was measured with a single item per joint, which may not capture the complexity of confidence. Participants were from a single university in Japan, limiting generalizability. The study did not control for the amount of practice students did outside of class, which the authors suggest may explain why knee accuracy improved but elbow accuracy did not.
Declared interests
The authors declare no conflicts of interest. The work was supported by a JSPS KAKENHI grant.
The easy way to misread this
Do not assume that students who feel confident in their measurement skills are actually accurate. The study found no relationship between self-efficacy scores and measurement error, meaning a student's belief in their ability does not predict how well they can measure joint angles.