• The Journal of Korean Physical Therapy
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• v.34 no.5
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• pp.242-247
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• 2022

Purpose: This study investigates the effect of 60° semi-squat exercises according to three different types of support surfaces. The effects were examined on joint position sense and balancing ability using stable and unstable surfaces in patients afflicted with post-stroke hemiplegia. Methods: Subjects were instructed to perform three sets of 60° semi-squat exercises according to the characteristics of the support surface conditions. The three ground states were bilateral stable surface (BSS), nonaffected side unstable surface (NUS), and bilateral unstable surface (BUS). The joint position sense, characteristics of body sway, and dynamic balance were analyzed according to floor conditions before and after the experiment. A balance-pad (50 cm W×41 cm L×6 cm H; Alcan Airex AG, Sins, Switzerland) was used for the unstable floor. Results: The 60° semi-squat exercises applied to hemiplegic patients showed the highest statistical significance in joint position sense in the NUS group, and Timed Up and Go test (TUG) in the BUS group (p<0.05). Conclusion: Functional training using an unstable surface can be applied as a meaningful intervention method for improving the balance and joint position sense of stroke patients.

• Journal of the Korean Society of Physical Medicine
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• v.18 no.1
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• pp.59-66
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• 2023

PURPOSE: This study examined the foot pressure distribution using the sprinter and skater patterns of coordinative locomotor training. METHODS: Thirty healthy adults, comprising 11 men and 19 women, participated in the study. All the participants performed patterns in sprinter pattern conditions 1-3 and skater pattern conditions 1-3, and were measured using a pedoscan to determine the applied foot pressure distribution. RESULTS: The participants significantly differed in the big toe during the sprinter pattern. As a result of the post hoc test, opposite and opposite sprinters showed a significant difference from the same sprinters (same sprinter; 21.33 ± 5.92, opposite sprinter; 23.54 ± 5.41, and reopposite sprinter; 24.14 ± 6.46). There was a significant difference in the lateral side during the skater pattern. As a result of the post hoc test, reopposite and same skaters showed a significant difference from opposite skaters (same skater; 49.88 ± 5.75, opposite skater; 48.78 ± 5.64, and reopposite skater; 51.15 ± 5.37). CONCLUSION: The foot pressure was distributed toward the hallux and fifth toe according to the sprinter and skater patterns of coordinative locomotor training.

• Journal of Korean Physical Therapy Science
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• v.30 no.1
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• pp.52-61
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• 2023

Background: The purpose of this study was to investigate the immediate effects of ankle elastic and non-elastic taping on postural balance and gait ability in subject with stroke. Design: Cross-sectional study Methods: Twenty-seven subjects with stroke participated in this study. The subjects performed to stand quietly for 30s on the balance platform and walking test with three different ankle taping conditions. The sway length, sway area and sway velocity of center of gravity (COG) displacement was measured to assess the postural balance and the timed up and go test, 10m walking test, 6 minutes walking test was measured to assess the gait ability. Repeated measured ANOVA was used to compare the postural balance parameters and gait ability according to three different ankle taping conditions. Results: Postural balance with non-elastic ankle taping was significantly improved compared to no ankle taping and elastic ankle taping condition(p<0.05). On the other hand, gait ability with elastic ankle taping was significantly increased compared to no ankle taping and non-elastic ankle taping condition(p<0.05). Conclusion: These findings suggest that an elastic ankle taping could effect to improve the gait ability, whereas a non-elastic ankle taping could effect to improve the postural balance in subject with stroke.

• Journal of Korean Physical Therapy Science
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• v.1 no.1
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• pp.203-213
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• 1994

As a new concept of resistive exercise, isokinetic exercise was developed during the late 1960's. In isokinetic exercise, the subject works at a fixed speed aganist variable and totally accommodating resistance. During isokinetic exercise the resistance accommodates the external maintains maximum output throughout the full range of motion. The maximum torque during isokinetic movements is a measure of the muscular force applied in dynamic conditions.

• Journal of the Korea Society of Computer and Information
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• v.22 no.6
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• pp.149-156
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• 2017

In this paper, we propose to enhance a Physical working conditions to decrease absence from work. we demonstrated the correlation of worker's absence with various environmental factors in workplace by surveying 6,962 workers. As result, first, concerning exposure to physical work factors, most of them complained of vibration, and concerning exposure to improper working posture, most of them complained of repetitive arm and hand motions. Second, the absence experience had correlations with age, monthly income, smoking, number of employees, long term working, and shift work, and of the physical factors, hand vibration, noise, high temperature, low temperature and improper working posture had correlations with physical pain posture, movement of people and carrying heavy materials. Third, experience of exposure to hand vibration, noise and low temperature of the physical factors had impact on absence, and of the improper working posture, physical pain posture and carrying heavy stuff had impacts on absence. Through this study, it was found that of the work factors of Korean workers, physical factors and improper working posture had impacts on absence. The results of this study confirmed that physical factors and inappropriate working posture among work factors influenced the absenteeism. Therefore, it is required to improve the work environment regarding physical risk factors and prepare a systematic management plan.

• The Journal of Korean Physical Therapy
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• v.15 no.1
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• pp.1-8
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• 2003

We need to study about lower extremity alignment because the structure dictates the function of lower extremity. Through lower extremity alignment assessment in static posture, we recognize abnormal structural conditions which could affect dynamic motion such as gait. To evaluate of lower extremity alignment provide so many useful information, but method of measurement is so limited. Therefore, this review will assist understanding for measurement of lower extremity alignment in static posture. From now on study about the objective measurement method must be achieved much more in physical therapy.

• Advances in nano research
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• v.13 no.6
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• pp.561-574
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• 2022

The stability of protein tissues and protein fibers in the human muscle is investigated in the presented paper. The protein fibers are modeled via tube structures embedded in others proteins fibers like the elastic substrate. Physical sport and physical exercise play an important role in the stability of synthesis and strength of the protein tissues. In physical exercise, the temperature of the body increases, and this temperature change impacts the stability of the protein tissues, which is the aim of the current study. The mathematical simulation of the protein tissues is done based on the mechanical sciences, and the protein fibers are modeled via wire structures according to the high-order theory beams. The thermal stress due to the conditions of the sport is applied to the nanoscale protein fibers, then the stability regarding the frequency analysis is investigated. Finally, the impact of temperature change, physical exercise, and small-scale parameters on the stability of the protein tissues are examined in detail.

• International Journal of Advanced Culture Technology
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• v.11 no.3
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• pp.131-141
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• 2023

This study aimed to identify the determinants of physical frailty among the old-old adults in rural Korean communities. A total of 191 individuals aged 75 and older were included in the study, with the majority being female. Participants were classified into healthy (n=47), pre-frail (n=54), and frail (n=90) groups. Significant differences were found across these groups in terms of age, gender, education level, depression, and nutritional status. Multiple logistic regression analysis revealed that age (OR=1.16), depression (OR=0.21), malnourishment (OR=10.85), and short physical performance ability (OR=0.70) were significant predictors of physical frailty. These findings underscore the multifaceted nature of physical frailty among old-old adults in urban-rural complex communities and highlight the need for comprehensive and integrated interventions. Such interventions should consider not only physical factors but also broader health conditions and socio-demographic influences impacting the elderly. Further research is needed to develop and evaluate interventions that address these determinants and promote health equity among the elderly population in urban-rural complex communities

• The Journal of Korean Physical Therapy
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• v.34 no.2
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• pp.73-79
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• 2022

Purpose: This descriptive study aimed at physical therapists to determine the actual conditions of sexual harassment occurring in the workplace, their coping strategies, and effective coping methods. Methods: In total, 186 responses were collected through Google from June 28 to August 21, 2021. The questionnaire consisted of 102 questions about the subject's general characteristics, sexual harassment, psychological stress, physical stress, and sexual harassment prevention education. Statistical Package For The Social Sciences (SPSS) was used for analysis, frequency analysis, percentage, standard deviation, and corresponding sample t-test, and the significance level was set to 0.05. Results: The perception of sexual harassment was 7.1, which was lower than that of other occupations. The perpetrators of visual, verbal, and physical sexual harassment appeared in the order of patients, coworkers, and guardians. Psychological and physical stresses were higher than the average due to damage caused by sexual harassment, requiring some attention. Work stress showed an average level. With the higher perception, a negative correlation was observed in the face of mitigation (p<0.001). Conclusion: The number of victims of sexual harassment is increasing every year. To cope with sexual harassment, there should be a department capable of counseling and processing in the workplace, and what occurs should be analyzed. In addition, educational programs are needed to prevent sexual harassment in consideration of the characteristics of hospitals.

• Physical Therapy Korea
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• v.20 no.1
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• pp.55-63
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• 2013

This study investigated the effects of axillary crutch length on trunk muscle activity and lumbo-pelvic-hip complex movements during crutch gait. Eleven healthy men participated in this study. The participants performed a three-point gait with optimal, shorter, and longer crutch lengths. Weight-bearing (WB) side was determined as the dominant leg side. The electromyography (EMG) activity of the bilateral rectus abdominis (RA) and erector spinae (ES) muscles and lumbo-pelvic-hip complex movements were monitored using a three-dimensional motion system with wireless surface EMG. Differences in the EMG activity of RA and ES muscles and range of motion (ROM) of lumbar spine, pelvis, and hip among conditions were analyzed using one-way repeated-measures analysis of variance, and a Bonferroni correction was conducted. There was less RA muscle activity on the WB side under the optimal crutch length condition compared with shorter and longer crutch length conditions (p<.05). The EMG activity of the RA muscle on the non-WB side and ES muscle on the WB side were significantly decreased under the optimal crutch length condition compared with shorter crutch length condition (p<.05). No significant differences in the EMG activity of the ES muscle on the non-WB side and ROM of lumbo-pelvic-hip complex were found among conditions (p>.05). These findings indicate that the optimal crutch length improves the trunk muscle efficiency during crutch gait.