著者

Shun-ichiro HIRANO Tetsuya FUJIMOTO Hiroshi INOUE Kenji UCHIHASHI Yasuo NISHIKAWA

出版者

Osaka Odontological Society

雑誌

Journal of Osaka Dental University (ISSN:04752058)

巻号頁・発行日

vol.51, no.2, pp.151-156, 2017-10-25 (Released:2018-01-25)

参考文献数

13

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The seating location in the classroom is thought to have a close relationship to the aca­ demic performance of each student. However, as teachers taking part in higher educa­ tion, we know that "common sense" must give way to many exceptional cases. To verify the truth of this widely held belief, we recorded the students' seating locations at a den­ tal hygiene college for many years, and correlated this information with their academic performance. As the rooms in which they were taught were identical, and the seating ar­ rangements were consistent throughout the years, it allowed us to analyze the data in a single environment. Many studies have reported that although students with poor grades sit in "low interaction" seats, students with good grades do not select "high interaction"seats, but rather prefer to occupy "moderate interaction" seats. Average or middle stu­ dents tended to have no favored location. We were not able to correlate each student's academic performance with her preferred seating location, especially in the case of high performing students. However, the pre­ ferred seating location for students with poor grades tended to follow commonly ac­ cepted norms which have been described in many reports. Our findings suggest that stu­ dents who are at risk of failing could be determined by where they sit in the classroom. This helps to identify the potentially unsuccessful candidates, and permits remedial ac­ tion at an early stage. (J Osaka Dent Univ 2017; 51: 151­-156)

著者

Katsuyuki MORISHITA Hiroshi KARASUNO Yuka YOKOI Kazunori MOROZUMI Hisayoshi OGIHARA Toshikazu ITO Takayuki FUJIWARA Tetsuya FUJIMOTO Koji ABE

出版者

日本理学療法士協会

雑誌

Journal of the Japanese Physical Therapy Association (ISSN:13441272)

巻号頁・発行日

vol.17, no.1, pp.1-7, 2014 (Released:2014-12-20)

参考文献数

32

被引用文献数

19

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Purpose: This study aimed to clarify the effects of therapeutic ultrasound on intramuscular local blood circulation (and oxygen dynamics) using near-infrared spectroscopy (NIRS). Participants: The participants were 11 healthy males. Methods: All participants performed all three trials; (1) the ultrasound (US group), (2) without powered ultrasound (placebo group), and (3) rest (control group). Ultrasound was applied at 3 MHz, 1.0 W/cm2, and 100% duty cycle for 10 minutes. Evaluation index were oxygenated, deoxygenated, and total hemoglobin (Hb) concentrations in the intramuscular and skin surface temperature (SST). The experimental protocol was a total of 40 minutes, that is, 10 minutes before trial (rest), 10 minutes during the trial (ultrasound, placebo, and control), and 20 minutes after trial (rest). The NIRS and SST data collected before and after the trial were divided into 5 minutes intervals for further analysis. Results: Oxygenated and total hemoglobin levels were significantly higher in the US group than in the placebo and control groups for the 20 minutes after ultrasound ( p < 0.01). The SST was significantly higher in the US group than in the control for 15 minutes after ultrasound ( p < 0.05), while it was significantly lower in the placebo group than in the US and control groups for 20 minutes after the trials ( p < 0.01). Conclusion: The effects of ultrasound were maintained for 20 minutes after the trial on intramuscular blood circulation and oxygen dynamics. These effects were caused by a combination of thermal and mechanical effects of the ultrasound.

著者

Katsuyuki Morishita Hiroshi Karasuno Yuka Yokoi Kazunori Morozumi Hisayoshi Ogihara Toshikazu Ito Masaaki Hanaoka Takayuki Fujiwara Tetsuya Fujimoto Koji Abe

出版者

理学療法科学学会

雑誌

Journal of Physical Therapy Science (ISSN:09155287)

巻号頁・発行日

vol.26, no.5, pp.711-715, 2014 (Released:2014-05-29)

参考文献数

23

被引用文献数

7 29

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[Purpose] This study aimed to clarify the effects of therapeutic ultrasound on range of motion and stretch pain and the relationships between the effects. [Subjects] The subjects were 15 healthy males. [Methods] Subjects performed all three interventions: (1) ultrasound (US group), (2) without powered ultrasound (placebo group), and (3) rest (control group). Ultrasound was applied at 3 MHz with an intensity of 1.0 W/cm2 and a 100% duty cycle for 10 minutes. The evaluation indices were active and passive range of motion (ROM), stretch pain (visual analog scale; VAS), and skin surface temperature (SST). The experimental protocol lasted a total of 40 minutes; this was comprised of 10 minutes before the intervention, 10 minutes during the intervention (US, placebo, and control), and 20 minutes after the intervention. [Results] ROM and SST were significantly higher in the US group than in the placebo and control groups for the 20 minutes after ultrasound, though there was no change in stretch pain. [Conclusion] The effects of ultrasound on ROM and SST were maintained for 20 minutes after the intervention. The SST increased with ultrasound and decreased afterwards. Additionally, the SST tended to return to baseline levels within 20 minutes after ultrasound exposure. Therefore, these effects were caused by a combination of thermal and mechanical effects of the ultrasound.