Prevalence of Premenstrual Syndrome in Korean Female National Athletes and Associated Risk Factors / 대한스포츠의학회지

Purpose@#The purpose of this study was to investigate the prevalence of premenstrual syndrome in elite female athletes and the associated factors. @*Methods@#We surveyed elite female athletes in the National Training Center about their experiences of premenstrual syndrome. Premenstrual syndrome was diagnosed using the premenstrual symptoms screening tool. The MannWhitney test was applied to determine the association of premenstrual syndrome with differences in age, training time, and body mass index; and the chi-squared test was performed to investigate the association of premenstrual syndrome with differences in alcohol and coffee intake, diet for weight loss, stress fracture, and menstrual regularity. @*Results@#Of the 124 athletes, 18 (14.5%) met the criteria for the diagnosis of premenstrual syndrome. These athletes complained of symptoms such as fatigue/lack of energy (18, 100%), anger/irritability (14, 77.8%), joint/muscle pain (10, 55.6%). There was no significant difference in menarche age, training time, or body mass index between the premenstrual syndrome and non-premenstrual syndrome groups. There was also no significant difference in alcohol or coffee intake, diet for weight, stress fracture, or menstrual regularity between the two groups. The athletes with premenstrual syndrome felt that premenstrual symptoms interfered with their performance, but few of them visited the doctor. @*Conclusion@#Premenstrual syndrome athletes felt that their performance was hampered because their symptoms were not adequately managed. However, none of the factors we investigated showed any association with premenstrual syndrome. Hence more research and proactive management of the premenstrual symptoms of female athletes is recommended.

Reliability and Validity of the Korean Kessler Foundation Neglect Assessment Process

OBJECTIVE: To develop the Korean version of the Kessler Foundation Neglect Assessment Process (KF-NAP), which enables a more functional assessment of unilateral spatial neglect, by first translating it into Korean and then statistically standardizing it. METHODS: Two rehabilitation specialists translated the KF-NAP into Korean. The entire process of administering the Korean KF-NAP to 30 patients with brain disease was video-recorded. Five occupational therapists from 4 university hospitals nationwide evaluated the 30 video-recorded examination cases. We analyzed inter- and intra-reliabilities of the Korean KF-NAP using the intraclass coefficient and Pearson correlation coefficient. Internal consistency reliability of the assessment categories was also examined using Cronbach's alpha coefficient. RESULTS: For the construct validation study, the Korean KF-NAP was strongly correlated with the Albert's test and letter cancellation test (r ≥ 0.8; p < 0.05). The intraclass correlation coefficients for the first and second assessments of the Korean KF-NAP were 0.973 and 0.982, respectively, showing high reliability (p < 0.05). The intra-rater reliabilities exceeded 0.9 (p < 0.05), and Cronbach's alpha coefficient exceeded 0.8, showing internal consistency reliability. CONCLUSION: The Korean KF-NAP is a reliable and valid instrument for assessing hemispatial neglect symptoms in patients with brain diseases.

Comparisons of Spinal Stabilization Exercise and Lumbar Extensor Strengthening Exercise in Chronic Low Back Pain

OBJECTIVE: To compare the effects of spinal stabilization exercise against with lumbar extensor strengthening exercise. METHOD: Sixty patients with chronic low back pain were enrolled into the study and randomly classified into three groups. Groups were treated with spinal stabilization exercise (Group 1), lumbar extensor strengthening exercise using a MedX machine (Group 2), or with a combination program (Group 3) for 8 weeks. Patients were not given any other treatment modalities. Isometric peak torque of the lumbar extensors, pain rating score (PRS), Medical Outcomes Study Short Form-36 (SF-36) score, and the Oswestry low back pain disability questionnaire (OLBPD-Q) were assessed at 0, 4, and 8 weeks of exercise. RESULTS: 1) After 8 weeks, all groups showed incremental improvements in maximal isometric torque of the lumbar extensors and exhibited improvement in SF-36, PRS, and OLBD-Q scores (p<0.05). 2) There were no significant differences in the degree of improvement among the three groups after 8 weeks of exercise. 3) The percentage of patients with scores of good or excellent in Group 3 was higher than in Groups 1 and 2 according to all evaluation tools. CONCLUSION: In the treatment of chronic low back pain, all exercise groups showed decreased pain, improved quality of life, and increased lumbar extensor strength regardless of the exercise type employed. We suggest that exercise programs in general are effective for the treatment of chronic low back pain and a combination exercise program seems to be most beneficial.

Exercise Performance Test Using Bicycle Ergometer in Patients with Diabetes Mellitus

The physical activity has an important physiological and psychological benefit for all people, and the exercise program has a key role in the management of diabetes. This article presents exercise recommendations for people with diabetes. Though the patients with diabetes may give many benefits from regular physical exercise, there may be several hazards from exercise as well. We assessed 30 patients with type 2 Diabetes Mellitus and 15 normal control subjects with sedentary life-style for their workload, heart rate on maximal performance and maximal oxygen uptake, change of blood glucose level after exercise using bicycle ergometer and Astrand nomogram. The workload, heart rate on maximal performance and maximal oxygen uptake were lower in diabetic patient than control subjects. Blood glucose decreased in diabetic patient than control subjects, after exercise and the lowered value was maintained until 60 minutes after exercise. The maximal oxygen uptake was lower in diabetic patients than control subjects. The blood glucose decreased in both diabetic patients and normal control after exercise.