Duk-hyun An

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[Purpose] The purpose of this study was to investigate the effects of an 8-week balance exercise and elastic-resistance exercise program on muscle strength and balance of the old-old elderly (over the age of 75). [Subjects and Methods] Fifty-five elderly persons were recruited from the community and assigned to three groups for convenience: balance exercise(More)
This study was conducted to identify the effects of a fall-prevention exercise program on the participation and static balance of elderly persons in daily life roles. [Subjects] Ten participants over 65 years of age (75.29±2.93) who were healthy community-dwellers (two men and eight women) were recruited. [Methods] The participants exercised three times a(More)
[Purpose] To investigate the effects of erect sitting, slouched posture with cross-legged sitting, and erect posture with cross-legged sitting on the lumbar and pelvic angles, and gluteal pressure. [Subjects] For the experiments, 17 healthy women were recruited. [Methods] All subjects were asked to perform three sitting postures: erect sitting, slouched(More)
[Purpose] The purpose of this study was to investigate gait velocity and center of mass (COM) during square and semicircular turning gaits between two groups of elderly people with differing visual acuity. [Subjects] Twenty elderly Korean women who could walk independently and who lived in the community were recruited. [Methods] We measured gait velocity(More)
[Purpose] This study investigated the effect of a motor dual-task balance program on balance and gait of elderly women to suggest a more effective balance exercise method. [Subjects] Twenty elderly Korean women who could walk independently were recruited from the community dwelling. [Methods] The motor dual-task balance training (experimental) group stood(More)
This study compared the gait parameters of young women using various methods to carry a single-strap bag during walking. Twenty-one Korean healthy women walked on a GAITRite-instrumented carpet at a self-paced speed for each of the four following conditions in random order: no bag, carrying a bag over the shoulder, carrying a bag on the forearm, and(More)
This study investigated the relationship between the active cervical range of motion (ROM) and changes in the head and neck posture after continuous visual display terminal (VDT) work. Twenty VDT workers were recruited from laboratories. The active cervical ROM of the participants was measured and videotaped to capture the craniocervical and cervicothoracic(More)
We investigated the effectiveness of an AFO-shaped band as an assistive walking device in patients with neurological lesions. The participants included 11 patients with a recent history of a CVA and one multiple sclerosis patient. In each patient, the order of conditions (AFO, AFO-shaped band, barefoot) was randomized. Participants were required to walk on(More)
BACKGROUND Hamstring-stretching exercises are frequently used to change lumbar spine and hip movements in the clinic. However, little research into the effects of hamstring flexibility on lumbar spine and hip movements during lifting tasks has been reported. OBJECTIVE We investigated effects of hamstring-stretching exercises on the kinematics of the(More)
BACKGROUND AND OBJECTIVE Forward bending is frequently performed in daily activities. However, excessive lumbar flexion during forward bending has been reported as a risk factor for low back pain. Therefore, we examined the effects of an exercise strategy using a stick on the angular displacement and movement onset of lumbar and hip flexion during(More)