The effect on haemoglobin saturation was higher in the CRet group than in the HP group. In addition, the CRet intervention warmed deep tissue more effectively than HP intervention.
Introduction: The differences between Capacitive and Resistive electric transfer (CRet) and hot pack (HP) in their effects on tissue temperature, muscle flexibility, and blood circulation are unknown. This study aimed to clarify the effect of CRet and HP on tissue temperature, muscle flexibility, and blood circulation.
[Purpose] This study aimed to clarify the effects of Capacitive and Resistive electric
transfer (CRet) on changes in muscle flexibility and lumbopelvic alignment after fatiguing
exercise. [Subjects and Methods] Twenty-two healthy males were assigned into either the
CRet (n=11) or control (n=11) group. Fatiguing exercise and CRet intervention were applied
at the quadriceps muscle of the participants’ dominant legs. The Ely test, pelvic tilt,
lumbar lordosis, and superficial temperature were measured before and after exercise and
for 30 minutes after intervention. Statistical analysis was performed using one-way
analysis of variance, with Tukey’s post-hoc multiple comparison test to clarify
within-group changes and Student’s t-test to clarify between-group differences. [Results]
The Ely test and pelvic tilt were significantly different in both groups after exercise,
but there was no difference in the CRet group after intervention. Superficial temperature
significantly increased in the CRet group for 30 minutes after intervention, in contrast
to after the exercise and intervention in the control group. There was no significant
between-group difference at any timepoint, except in superficial temperature. [Conclusion]
CRet could effectively improve muscle flexibility and lumbopelvic alignment after
fatiguing exercise.
[Purpose] Few studies on the transverse arch (TA) in the forefoot have been conducted.
The forefoot is where pains occur most frequently and is related to walking and balance;
hence, paying attention to TA is vital. However, the relationship between TA and foot
muscles has not been investigated. Therefore, this study aims to investigate muscles
related to TA. [Subjects and Methods] Nineteen healthy young males were included.
Measurements of their feet, excluding one foot with recent foot pain (n=37), were
obtained. The height of TA (TAH) was measured in two ways: during 10% and 90% loading of
body weight. The cross-sectional area and thickness of five muscles were measured: flexor
digitorum longus, peroneus longus and brevis, flexor hallucis brevis, flexor digitorum
brevis (FDB) and abductor hallucis (ABH). All measurements were performed with an
ultrasound device. [Results] FDB and ABH were correlated with TAH during 10% and 90%
loading after removing the effect of body mass index and age. The greater FDB and ABH, the
higher TAH. [Conclusion] As FDB becomes larger, the second, third and fourth metatarsal
heads are raised more. Furthermore, the height of the first metatarsal head is lowered by
a larger ABH. These mechanisms may increase TAH.
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