1.RELATIONSHIP BETWEEN MUSCLE PROPORTION AND QUANTITY OF EXTREMITIES IN YOUNG JAPANESE WOMEN
HIRONORI SATO ; AKIRA MIURA ; MANABU SAKAI ; NOBORU TAKAMOTO ; HARUHIKO SATO ; YOSHIYUKI FUKUBA
Japanese Journal of Physical Fitness and Sports Medicine 2003;52(2):207-217
Recently, a long-term health concern has been identified in young Japanese women. These women have a high percentage of body fat despite a normal shape index indicator such as BMI. This condition is called marked obesity, and shows relative low lean body mass. Using an analogous determination, we investigated low percentage of muscle quantity (LM) in the extremities of young Japanese women (n=156) . The cross-sectional areas of muscle, subcutaneous fat, and bone were measured in the upper arm and thigh using ultrasonography. Extremity shape index (CSAt/L) was defined as the total extremity cross-sectional area (CSAt) divided by the length of the limb (L), Percent muscle in each extremity (% MA) was calculated from the ratio of muscle CSA to whole limb CSA. LM was defined as the percentage of muscle in the upper arm or thigh less than 1 SD below average and the limb shape index less than 1 SD above average. Nine of 91 subjects displayed LM for the upper arm. A similar proportion of subjects showed LM for the thigh (15/156) . The muscle mass and strength in the upper arm or thigh were compared between the subjects with LM and non-LM subjects with a similar shape index of extremity. There was a tendency towards lower muscle mass and muscle strength in the subjects with LM. From the same comparison, the subjects with LM showed a greater load on extremity muscles to sustain the body weight (i.e., body weight per unit of upper arm or thigh muscle CSA) . To mitigate the deleterious health consequences of low percent muscle quantity it is recommended that young Japanese women who display such a condition should participate in a resistance-training program.
2.Usability of Auxiliary Devices for Eye Drop Administration
Masahiro Murakami ; Yuri Miura ; Satoko Katsuragi ; Masako Ohno ; Manabu Amano ; Masahiro Moriyama
Japanese Journal of Drug Informatics 2015;17(3):140-144
Objective: For pharmacists to select a suitable auxiliary device for eye drop administration for patients who have difficulty in applying eye drops, the pharmacists need to know the characteristics and level of difficulty of using each device.
Methods: Thus, we compared the characteristics of New Rakuraku Tengan, Rakuraku Tengan III, and an eye-drop self-help device and also conducted a survey involving 40 healthy volunteers on each device’s accessibility and suitability for people with motor disabilities.
Results: New Rakuraku Tengan received the highest score for “usage was able to easily understand” (70.0% of the respondents answered positively) and “suitability for poor-sighted people” (65.0%). Rakuraku Tengan III received the highest score for the “effectiveness of photos and illustrations in the manual” (77.5%),but was evaluated to be difficult to use. The eye-drop self-help device received the highest score for “suitability for people with difficulty raising their shoulders and arms” (75.0%).
Results: Thus, we observed the need for pharmacists to have thorough knowledge of the products in order to recommend suitable auxiliary devices for eye drop administration for each patient.
3.Appropriate Color Enhancement Settings for Blue Laser Imaging Facilitates the Diagnosis of Early Gastric Cancer with High Color Contrast
Yuji HIRAOKA ; Yoshimasa MIURA ; Hiroyuki OSAWA ; Yoshie NOMOTO ; Haruo TAKAHASHI ; Masato TSUNODA ; Manabu NAGAYAMA ; Takashi UENO ; Alan Kawarai LEFOR ; Hironori YAMAMOTO
Journal of Gastric Cancer 2021;21(2):142-154
Purpose:
Screening image-enhanced endoscopy for gastrointestinal malignant lesions has progressed. However, the influence of the color enhancement settings for the laser endoscopic system on the visibility of lesions with higher color contrast than their surrounding mucosa has not been established.
Materials and Methods:
Forty early gastric cancers were retrospectively evaluated using color enhancement settings C1 and C2 for laser endoscopic systems with blue laser imaging (BLI), BLI-bright, and linked color imaging (LCI). The visibilities of the malignant lesions in the stomach with the C1 and C2 color enhancements were scored by expert and non-expert endoscopists and compared, and the color differences between the malignant lesions and the surrounding mucosa were assessed.
Results:
Early gastric cancers mainly appeared orange-red on LCI and brown on BLI-bright or BLI. The surrounding mucosae were purple on LCI regardless of the color enhancement but brown or pale green with C1 enhancement and dark green with C2 enhancement on BLIbright or BLI. The mean visibility scores for BLI-bright, BLI, and LCI with C2 enhancement were significantly higher than those with C1 enhancement. The superiority of the C2 enhancement was not demonstrated in the assessments by non-experts, but it was significant for experts using all modes. The C2 color enhancement produced a significantly greater color difference between the malignant lesions and the surrounding mucosa, especially with the use of BLI-bright (P=0.033) and BLI (P<0.001). C2 enhancement tended to be superior regardless of the morphological type, Helicobacter pylori status, or the extension of intestinal metaplasia around the cancer.
Conclusions
Appropriate color enhancement settings improve the visibility of malignant lesions in the stomach and color contrast between the malignant lesions and the surrounding mucosa.
4.Eliminating Discrepancies Between Assessments of Left Ventricular Wall Motion on Echocardiograms
Rina WAKISAKA ; Chinari FURUICHI ; Hideto FUKUOKA ; Masaya HIGUCHI ; Chihiro YANAGIMACHI ; Masahiko SODA ; Eizo MIYATA ; Manabu MIURA
Journal of the Japanese Association of Rural Medicine 2022;71(1):41-45
Echocardiographic assessment of wall motion is prone to interrater variability because it requires subjective visual evaluation. Echocardiography technicians were divided into 2 groups by years of experience, and their assessments of left ventricular wall motion on previously recorded echocardiograms were scored and compared. Scores did not differ within the more experienced group but differed significantly between technicians in the less experienced group. However, this difference disappeared after 3 months of training. This suggests that training can eliminate discrepancies between technicians, even inexperienced ones, in a relatively short period of time.