| Abstract |1 ) PURPOSE:The purpose of this study was to investigate the vital capacity and maximal voluntary ventilationin subjects with forward head posture (FHP). METHODS:Twenty-eight subjects participated in this study (normal 14, FHP 14) and were resident in B city. The mean age, height and weight of subjects was 22.80yrs, capacity between normal and FHP subjects. All statistical analyses were performed using SPSS 21.0 for window versionand p-values less than 0.05 were used to identify significant differences. RESULTS:The FVC, FEV1, FEV1/FVC and MVV of FHP subjects were decreased more than that of normal subjects and the difference was statistically significant between two groups. CONCLUSION:The vital capacity of subjects with FHP was generally lower than normal subjects. This study shows that the vital capacityof subjectswith FHP could be decreased due to the bad neck posture that weakens the respiratory accessory muscles of neck.

BackgroundColonic neoplasm is associated with western diet intake and physical inactivity. These life styles are also risk factors for dyslipidemia and metabolic syndrome. The aim of this study was to evaluate the association between dyslipidemia and the prevalence of colon polyps including colon adenoma as a precancerous lesion of colonic neoplasms.MethodsWe selected subjects undergoing a colonoscopy for health screening at the Health Promotion Center of Eulji General Hospital from January 2006 to June 2010. Subjects with histories of cancers, dyslipidemia treatment, and other intestinal diseases like Crohn's disease and ulcerative colitis were excluded. The total numbers of subjects included in the study was 605. Chi-square test and t-test and were used for the analysis. Additionally we used multivariate logistic regression to adjust for sex, age, smoking, drinking, and other risk factors.ResultsThe prevalence of colon polyps was 48.70% and 28.05% in males and females, respectively. When adjusting for variables that included age, body mass index, hypertension, diabetes mellitus, smoking, drinking, and exercise, dyslipidemia was not significantly associated with the prevalence of colon polyps. However upon analyzing adenomatous colon polyps in men, dyslipidemias due to triglycerides and high density lipoproteins were significant factors (odds ratio [OR], 2.13; confidence interval [CI], 1.14 to 3.98; OR, 2.24; CI, 1.15 to 4.34, respectively).ConclusionDyslipidemia was not a significant factor in the prevalence of colon polyps. However it had a significant association with the prevalence of adenomatous colon polyps in men.

[Purpose] It is well known that visual feedback is an important factor contributing to balance and postural control. Nevertheless, there has been little discussion about the effects of visual feedback on pulmonary function. This study was conducted to investigate the role of visual feedback on respiratory muscle activation and pulmonary function. [Subjects and Methods] The subjects were 37 healthy adults who consented to participate in this study. The study measured the muscular activation of the trunk and pulmonary function according to the absence or presence of visual feedback. [Results] The results revealed significant changes in muscular activation and pulmonary function with the use of visual feedback. [Conclusion] These findings suggest that visual feedback may play a role in increasing respiratory muscle activity and pulmonary function.

[Purpose] This study researched the influences of different loads on muscle activity of the posterior fibers of the gluteus medius in a one-leg standing position. [Subjects] Twenty-four healthy adult men participated in this study. [Methods] All participants performed the one-leg standing position under four conditions: the standard no-load condition, in which the non-weight-bearing leg was lifted and kept parallel to the back and then pelvic or lumbar rotation was performed without thorax rotation, and the 0 kg, 1 kg, and 3 kg load conditions, in which horizontal shoulder abduction was performed with a load of 0 kg, 1 kg, or 3 kg added to the hand. The electromyographic activity of the posterior fibers of the gluteus medius was measured using a wireless surface electromyography under all conditions. The electromyographic activity of each muscle under the four conditions during the one-leg stance was analyzed using one-way analysis of variance. [Results] The electromyographic activity of the posterior fiber of the gluteus medius was significantly increased under the 3 kg load condition compared with the no-load, 0 kg load, and 1 kg load conditions. [Conclusion] These findings indicated that muscle activation is affected by increases in load in the one-leg standing position. The load on the upper extremity influences the muscle activity of the contralateral lower extremity.