The effects of an arm lifting movement (ALM) on maximum vertical jumps with all but the ankle joints fixed (propelled only by plantar flexion) were studied in five subjects. ALM increased flight time, but did not alter maximum angular velocity of the ankle before takeoff. Holding 4kg dumbbells in their hands enhanced the effect of ALM on flight time. ALM increased the maximum force and the force at the onset of plantar flexion. Elbow angle recordings showed that both arms were accelerated before or around plantar flexion onset, and decelerated mainly after takeoff. In another series of experiments, we measured the vertical component of head and hand acceleration with accelerometers. ALM produced positive acceleration of the head after takeoff, which was related to negative acceleration of the hand. The results suggest that ALM increased flight time by enhancing plantar flexion torque under suppression of ankle angular velocity before takeoff. We discussed the relationship between this suppression and different acceleration between the arms and the body except the arms.

【Objective】

To investigate the role of the back and foot muscles during lateral weight-shifting in the standing position by examining the corresponding muscle activity patterns associated with a postural change.

【Methods】

The subjects were 24 healthy men (age 24.3 ± 2.6 [mean ± SD] years). The following parameters were recorded : center of pressure (COP) ; surface electromyograms of the multifidus, iliocostalis, longissimus (bilateral), peroneus, and foot supinator (on the moving side) muscles ; and video imaging during lateral weight-shifting after 2 seconds in the standing position.

【Results】

Horizontal movement of the pelvis resulted in elevation of the non-moving side from the middle of the COP, with moving side displacement. In the lower limbs, lateral weight shifting resulted in an outward tilt due to foot pronation. Activity of the multifidus, iliocostalis, and longissimus muscles on the non-moving side, and the peroneus and foot supinator muscles on the moving side, tended to increase with displacement of the COP on the moving side.

【Conclusion】

The multifidus, iliocostalis, and longissimus muscles were involved in lateral flexion of the thoracolumbar area and elevation of the pelvis on the non-moving side. Simultaneously, the foot supinator and peroneus muscles were involved in pronation of the grounded foot.

Since the model core curriculum was shown in public, the discussion about the medical education is getting hot in every medical school. In the model core curriculum, the integrated course is designed with the basic sciences and the clinical medicine via pathophysiology, which will be educated by the PBL tutorial. Thus, the model core curriculum is suitable for growing up better clinician. The problem involved in the context is the lower recognition to the basic sciences and also the missing of the next generation in the teaching staff of the basic sciences. The introduction of the information technology to the medical education should be much progressive. The new integrated course with the structure and function should be designed with the information technology, which will fit to the new medical education in the 21st century.

STATEMENT OF PROBLEM: Use of the conventional dental impression procedure is problematic in patients who have difficulty opening their mouth, difficulty breathing through their nose or tendency to gag. PURPOSE: It is necessary to make individual trays more comfortable for patients during impression taking procedure. It was reported at the KAP Annual Meeting 2001 Seoul that an improved impression technique was suitable for this purpose. In this study, the accuracy of the improved dental impression method for implant was compared with the conventional dental impression method. MATERIAL AND METHODS: An oral simulator was made from clear acrylic resin block which had similar form of edentulous ridge. For setting up the standard, five fixtures were installed on it. Study casts were made using two kinds of impression techniques. One was the conventional method that was taken using silicone impression material and an individual resin tray under connection of inter-fixture relation. The other was the improved method in which was the connection of the impression coping and the thermoformed polymethyl methacrylate tray. In addition, two different study casts were made from the improved impression body. The coordinates of the fixture on the study model were measured by three-dimensional coordinate measuring equipment. Then the distances between each fixture were calculated and compared with that of oral simulator. Accuracy of the each impression method was also assessed. RESULTS: The differences of inter-fixture dimension between study casts and simulator in the improved impression technique showed 0.014+/-0.016mm and 0.017+/-0.022mm, respectively and that of the conventional method was 0.017+/-0.014mm. There was no significant difference between the improved impression technique and conventional method. CONCLUSION: The improved impression technique is useful for multiple support implants.
Humans ; Mouth ; Nose ; Polymethyl Methacrylate* ; Respiration ; Seoul ; Silicones

A case of abdominal aortic aneurysm associated with systemic lupus erythematosus (SLE) is described. SLE is rarely associated with aneurysm of great arteries. Histological investigation revealed marked infiltration of inflammatory cells in the aneurysmal aortic wall. Immunocytochemical analysis using anti-factor VIII-related antigen antibody showed a marked increase of the vasa vasorum with luminal narrowing due to intimal thickning. In this case the major etiology of aortic aneurysm is considered to be non-specific inflammation of the abdominal aorta, not arteriosclerosis.

Background/Aims: The recovery room used after endoscopy has limited capacity, and an efficient flow of the endoscopy unit is desired. We investigated the duration of hospital stay after endoscopy and the risk factors for prolonged hospital stay among outpatients. Methods: We retrospectively studied consecutive patients who underwent esophagogastroduodenoscopy or colonoscopy at the Toyoshima Endoscopy Clinic. We collected data on age, sex, body weight, midazolam and pethidine dosage, respiratory depression during endoscopy, and duration of hospital stay after endoscopy (scope out to check out). Risk factors for prolonged hospital stay (>100 minutes) were identified using multiple logistic regression analysis. Results: We enrolled 3,898 patients, including 3,517 (90.2%) patients tested under sedation and 381 (9.8%) patients tested without sedation. Overall, 442 (11.3%) patients had prolonged stay (>100 min). The mean time difference between sedation group and non-sedation group was 44.2 minutes for esophagogastroduodenoscopy and 39.1 minutes for colonoscopy. Age (odds ratio [OR], 1.025; 95% confidence interval [CI], 1.014−1.036), female sex (OR, 1.657; 95% CI, 1.220−2.249), and midazolam dose (OR, 1.019; 95% CI, 1.013−1.026) were independently associated with prolonged hospital stay after esophagogastroduodenoscopy, with similar results for colonoscopy. Conclusions Old age, female sex, and midazolam dose were independent risk factors for prolonged hospital stay after endoscopy.

Objective: Direct oral anticoagulants (DOACs) are increasingly being used for the treatment of cancer-associated venous thromboembolism (CAT). However, there is limited evidence of the efficacy of DOACs for the treatment of gynecological CAT. Thus, this study aimed to investigate the efficacy and safety of edoxaban for the treatment of gynecological CAT using Japanese real-world data. Methods: We reviewed the medical records of patients with 371 gynecological cancer who received edoxaban or vitamin K antagonist (VKA) between January 2011 and December 2018. Results: Altogether, 211 and 160 patients were treated with edoxaban and VKA, respectively. Fourteen patients (6.8%) in the edoxaban group and 22 (13.8%) in the VKA group showed recurrence of venous thromboembolism (VTE). Cumulative VTE recurrence was not significantly different between the 2 groups (p=0.340). Adverse events occurred in 15 (7.1%) and 11 (6.9%) patients in the edoxaban and VKA groups, respectively (p=0.697). Subgroup analysis of the edoxaban and VKA groups according to different tumor types, including ovarian, endometrial, and cervical cancer, showed equivalent outcomes in terms of VTE recurrence and adverse events. Patients without pulmonary embolism (PE) were mostly omitted from initial unfractionated heparin (UFH) therapy prior to administration of edoxaban. However, this did not increase the recurrence of VTE. Conclusion This study confirmed that edoxaban is effective and safe for the treatment of gynecological CAT. This finding was consistent for different types of gynecological cancer. Additionally, initial UFH therapy prior to the administration of edoxaban may be unnecessary for patients without PE.

At the 71st Annual Meeting of the Japan Society for Oriental Medicine held in August 2021, we conducted a special program focusing on Kampo medicine education, “Pre-graduation post-graduation Kampo medicine education for the next generation.” The following is a summary report on the practical training in Kampo medicine at each educational facility where the project was conducted. We recorded videos with explanations of topics in advance : “Four examinations,” “Decoction and crude drugs,” and “Acupuncture and moxibustion.” The report on the hands-on training in Kampo medicine was viewed 501 times by medical students, educators, and the society members across the country. This initiative was the first nationwide educational activity of the society.