Do-young Jung

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OBJECTIVE To compare the muscle activity of the abductor hallucis (AbdH) and the medial longitudinal arch (MLA) angle during toe curl (TC) and short foot (SF) exercises while sitting or in one-leg standing position. DESIGN Two-way repeated-measures ANOVA was used to analyze the effects of exercise type and position on the muscle activity of the AbdH and(More)
Ankle exercises are commonly used to facilitate venous return in the lower extremity and to prevent deep vein thrombosis. Moreover, the respiratory cycle affects venous return. This study examined the effects of ankle exercise combined with deep breathing on the blood flow velocity in the femoral vein. Twenty healthy males (mean age 21.3 years), who had no(More)
[Purpose] This study investigated whether the toe-spread-out exercise affects the hallux valgus angle, the cross-sectional area of the abductor hallucis muscle, and the hallux valgus angle during active abduction. [Subjects and Methods] Twenty-four subjects with hallux valgus were randomly assigned to orthosis and orthosis plus toe-spread-out exercise(More)
OBJECTIVE To prevent overuse injuries related to excessively pronated feet, the strengthening of the foot intrinsic muscles has been recommended. The purpose of this study was to examine the effects of foot orthoses and a short-foot exercise intervention on the cross-sectional area (CSA) of the abductor hallucis (AbdH) muscle and strength of the flexor(More)
BACKGROUND AND OBJECTIVE Muscle imbalance between the abductor hallucis (AbdH) and adductor hallucis (AddH) has been demonstrated in hallux valgus (HV). Clinically, the short-foot (SF) is performed for strengthening foot intrinsic muscle. The toes-spread-out (TSO), the newly introduced, was devised to correct HV deformity. However, there was no study to(More)
STUDY DESIGN Controlled laboratory study. OBJECTIVES To examine the effects of standing wall stretching with and without medial arch support (WMAS versus WOMAS) on the displacement of the myotendinous junction (DMTJ) of the medial gastrocnemius, rearfoot angle, and navicular height in subjects with neutral foot alignment and pes planus. BACKGROUND(More)
In this paper, we study on a new buck-boost dc/dc converter of high efficiency by soft switching technique. The switching devices in the proposed converter are operated by soft switching with a new partial resonant circuit. The partial resonant circuit is designed to replacement of an energy storage inductor and a snubber circuit used in a conventional(More)
Lean construction theory is universally being applied in many actual projects for productivity improvement and process innovation. Most of proposed lean approaches, however, could not guide an actual implementation to the level of expected improvement, largely due to their inapplicability under in-situ circumstances. To reduce the gap between the(More)
OBJECTIVE To determine the most effective exercise to specifically activate the scapular posterior tilting muscles by comparing muscle activity generated by different exercises (wall facing arm lift, prone arm lift, backward rocking arm lift, backward rocking diagonal arm lift). DESIGN Repeated-measure within-subject intervention. PARTICIPANTS The(More)
OBJECTIVES This study was conducted in order to determine the effect of feedback tools on activities of the gluteus maximus (Gmax) and oblique abdominal muscles and the angle of pelvic rotation during clam exercise (CE). DESIGN Comparative study using repeated measures. SETTING University laboratory. PARTICIPANTS Sixteen subjects with lower back pain.(More)
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