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Hideaki Soya,Hiroki Yanagisawa,Ippeita Dan 한국체육학회 2009 International journal of human movement science Vol.3 No.2
Recently a growing number of human studies have reported the beneficial influence of acute moderate exercise on cognitive functions. Neurocognitive investigations into such neural substrates have mainly been performed using electroencephalography. However, we recently introduced multichannel functional near-infrared spectroscopy (fNIRS), which is a noninvasive and nonrestrictive optical method to monitor cerebral hemodynamics reflecting regional neural activation. We found improved cognitive performance for Stroop interference elicited by an acute bout of moderate exercise that coincided with enhanced cortical activation in the dorsolateral prefrontal cortex. In a previous study, we set the duration of the exercise at 10 min, but the extent to which we could shorten exercise duration remained uncertain. Thus, here we assessed the effects of various durations of acute exercise on neurocognitive performance during an incongruent Stroop task. We present the first experimental evidence that a minimum of 10 min of acute exercise with an intensity of 50% of the maximum oxygen intake is necessary in order to improve cognitive performance on a Stroop interference test. In combination with facilities enabling strict physiological control, fNIRS is a promising tool that will serve to cultivate a novel application in sports science namely, elucidating, in detail, the cognitive effects of physical exercise.
Takashi Nonaka,Takaomi Kessoku,Yuji Ogawa,Shogo Yanagisawa,Tadahiko Shiba,Takashi Sakaguchi,Kazuhiro Atsukawa,Hisao Takahashi,Yusuke Sekino,Hiroshi Iida,Hiroki Endo,Yasunari Sakamoto,Tomoko Koide,Hiro 대한소화기 기능성질환∙운동학회 2013 Journal of Neurogastroenterology and Motility (JNM Vol.19 No.1
Background/Aims The aim of this study was to examine the convenience of the quality of life and utility evaluation survey technology (QUEST) questionnaire and the frequency scale for the symptoms of gastroesophageal reflux disease (FSSG) questionnaire as self-assessment diagnostic instrument. Methods This was a two-way crossover study conducted over 6 weeks from September 2010 to November 2010. The subjects were 60 consecutive patients admitted to the Hiratsuka city hospital with a gastrointestinal condition, regardless of the coexistence of heartburn. They were assigned to fill in both the QUEST and FSSG questionnaires in random order. We analyzed the time taken to complete the questionnaires, whether subjects asked any questions as they filled in the questionnaire, and the questionnaire scores. Results Comparison of the QUEST and the FSSG revealed significant differences in the completion time (196.5 vs. 97.5 seconds, respectively; P < 0.0001) and in whether subjects asked any questions (37 vs. 15 subjects, respectively; P < 0.0001). Completion time in QUEST scores of ≥ 4 was lower than < 4 (170.5 vs. 214.0 seconds, respectively; P = 0.022), and the QUEST score was significantly higher without questions than with question (3 vs. 1 points, respectively; P = 0.025). Conclusions This study revealed that the FSSG questionnaire may be easier for Japanese subjects to complete than the QUEST questionnaire.