A comparative analysis of palpatory acuity in chiropractic students between 2015 and 2024

Abstract

Objective: To explore differences in palpatory acuity between two independent student cohorts from 2015 to 2024, and to assess the potential effect of pedagogical changes in the teaching of palpation skills that emphasize sensory awareness over anatomical identification at the New Zealand College of Chiropractic (NZCC). Methods: This study was a comparative cross-sectional study using two independent student cohorts. In 2015, palpatory acuity was assessed in 199 chiropractic students (42.5% female, mean: 25.8 ± 7.4 years) from 4 different cohorts. In 2024, 154 students (54.5% female, mean: 23.6 ± 5.6 years) over 4 cohorts were assessed. Palpatory acuity was measured by the participant’s ability to accurately locate a 0.1 mm nylon monofilament under a variable number of 80gsm white copying paper sheets while blindfolded. Unpaired Wilcoxon rank sum tests were used to assess differences between timepoints (2015 and 2024) and year groups. Results: The 2024 group (mean: 67.8 ± 22.5 pages) demonstrated significantly higher palpatory acuity compared with the 2015 group (mean: 31.1 ± 22.4 pages, p