After the baseline measurements were
obtained, the subjects were randomly divided
into 3 groups by drawing lots to assign into a
group, with the single intervention of ensuring a
similar gender-match quota in each group. Each
group contained 25 subjects. The measurement
researcher was blinded to subject division
and intervention application. After baseline
measurement, the subjects were allowed to take
a rest up to 30 minutes if needed to dissipate
any discomfort sensation during the baseline
measurement might cause before their intervention
was performed. After they rested, they
underwent according to the designated group: no
heating, 15-minute heating, or 30-minute heating.
After the intervention, their ankle dorsiflexion
AROMs were immediately measured, again 3
times, with the highest value recorded.
Interventions
Subjects in the no heating group did not
undergo any heating intervention. They were
positioned supine on a bed, and asked to remain
in this position for 30 minutes