Related Experiment Video
Updated: Sep 24, 2026
An Alternative to the Traditional Cold Pressor Test: The Cold Pressor Arm Wrap
Published on: January 16, 2014
Classical back massage is associated with lower heart rate and sustained mean skin conductance during recovery after
Maciej Lachowicz1,2, Iwona Wilk1, Igor Hrehorowicz1
1Department of Fundamentals of Physical Therapy and Occupational Therapy, Wroclaw University of Health and Sport Sciences, Wrocław, Poland.
Introduction:
Physiological responses after cognitive load may differ across cardiovascular measures and electrodermal activity (EDA).
Methods:
This controlled exploratory pilot study compared heart-rate and phase-averaged mean skin-conductance responses during a 15-min post-task period conducted under two conditions: classical back massage and passive prone rest. After eligibility verification and physiological signal-quality inspection, the final analytical sample included 48 participants: 24 in the classical massage condition and 24 in the passive rest condition. Recordings were segmented into a 5-min baseline, the cognitive task, and three non-overlapping 5-min post-task windows. Heart rate and phase-averaged mean skin conductance were analyzed using mixed-design repeated-measures analyses of variance (ANOVA), with baseline-adjusted values reported descriptively and non-parametric analyses used as supplementary robustness checks.
Results:
During the post-task period, the massage group showed a lower heart rate than the passive-rest group across all recovery windows, whereas mean skin conductance remained elevated and was higher during the later windows.
Discussion:
These divergent trajectories suggest that cardiovascular and electrodermal measures capture different components of the post-load response and should not be treated as interchangeable indicators of autonomic recovery. The findings provide a basis for confirmatory studies using randomized allocation and active tactile controls, but remain hypothesis-generating because the design did not isolate somatosensory input, interpersonal contact, expectation, posture, or spontaneous recovery.
