Ji Yeon Lee ¹, Mid Eum Park ¹, Jin Seop Kim ¹, Ji Heon Hong ¹, Jae Ho Yu ¹, Dong Yeop Lee ¹

Affiliations
1 Department of Physical Therapy, SunMoon University, KR

Abstract

The quadruped position is one of the trunk stabilization exercises. This improves the pelvic stability and muscle strength during performing the complicated movements. There was no study about the comparisons of the trunk muscle activation according to the hip joint angles. The purpose of this study was to analyze trunk muscle activity in quadruped posture according to the hip flexion angle (70°, 80°,90°). The subjects were 30 healthy young adults (15males, 15females). They performed 2 different postures of trunk stabilization exercises (with one leg raise and with contralateral arm and leg raise) in the quadruped position. The surface Electro-Myography (sEMG) was bilaterally recorded from Rectus Abdominis (RA), External Oblique (EO) and Erector Spinae (ES). As a result, the ES muscle activation(%MVIC) showed a significant difference in the quadruped position according to the hip flexion angles between 70° and 90°(p<0.5). There was no significant difference in RA and EO muscle activation according to the hip flexion angles. This study suggests that we can selectively facilitate the muscle activity and exercise more effectively by considering the hip flexion angle when performing the quadruped position for enhancing the trunk stability.

Keywords

Component, Hip Flexion Angle, Muscle Activation, Quadruped Position, Trunk Stabilization

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Jae Ho Yu ¹, Eun Jeong Lee ¹, Jin Seop Kim ¹, Ji Heon Hong ¹, Dong Yeop Lee ¹

Affiliations
1 Department of Physical Therapy, Sun Moon University, KR

Abstract

The aim of this study is to prove that the change of pelvic tilt angle and backrest pressure according to hip joint angle in
healthy adult. Thirty healthy male and female adults consented to participate in this study. Subjects sat on the chair with
90°, 100° and 120° hip joint flexion while both the Pressure Sensors (PS) and Passive Makers (PM) were sticked to the
subjects by an examiner. In difference between the distance values of the total axis (in distance between Superior Iliac
Crest (SIC) and thigh) and the distance values of the total axis (in distance between Anterior Superior Iliac Spine (ASIS)
and thigh), there was significant value (p<.01). And in difference between the thoracic pressure and the lumbar pressure,
there was significant value (p<.001). Thus, in comparison with the subjects sitting down with a smaller hip joint angle, the
subjects sitting down with the bigger hip joint angle can be exposed to danger complaining of low back pain.

Keywords

Back Pressure, Component, Hip Joint Angle, Pelvic Tilt, Sitting Posture

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Ja Yeong Gu ¹, Hee Seong Choi ¹, Dong Yeop Lee ¹, Jae Ho Yu ¹, Jin Seop Kim ¹, Jiheon Hong ¹

Affiliations
1 Department Physical Therapy, Sun Moon Univeresity, Asan-si, Chungnam, KR

Abstract

Background/Objectives: Heat treatment of physical agent modalities (hot pack, paraffin bath, infrared lamp) was widely used in the treatment of the Raynaud's phenomenon. The aim of this study was to investigate effective heat treatment of physical agent modalities for hand hypothermia. Methods/Statistical Analysis: Forty-two subjects were classified into hypothermia group (21 adults) and control group (21 healthy adults). The heat treatment was applied on the subjects after exposing central part of their hands in a laboratory at 23 to 25 °C for 10 minutes before applying the heat treatment, and measured temperature of central part of their hands through Digital Infrared Thermal Imaging before and after treatment. The heat treatment included hot pack, paraffin bath, infrared lamp, and each heat treatment were applied for 20 minutes. Findings: Significant difference appeared in three factors of each group when skin temperature was compared before and after the heat treatment application. The hot pack and paraffin bath showed significant difference when temperature of the experiment group and control group were compared temperature difference before and after the application. When each factor was compared in the experiment group by temperature difference before and after the heat treatment application, between the hot pack and infrared lamp were showed significant difference. According to the result of this study, each heat treatment can be considered to have effect in increasing the skin temperature for both groups. The hot pack treatment applied to people with hypothermia is considered to show better effects when treating hypothermia. Application/Improvements: heat treatment is considered to be an appropriate physical therapy for people with hypothermia.

Keywords

Digital Infrared Thermal Imaging, Hypothermia, Hot Pack, Infrared Lamp, Paraffin bath.

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