著者
村上 祐介 濱田 大佐 菅村 玄二
出版者
一般社団法人 日本体育・スポーツ・健康学会
雑誌
体育学研究 (ISSN:04846710)
巻号頁・発行日
vol.67, pp.859-877, 2022 (Released:2022-10-16)
参考文献数
51

We examined the effects of postural intervention using a “risshin chair” (an upright support seat assisting a zazen-like posture) on posture maintenance, classroom time perception, implicit affect, mental health, and life meaningfulness in an actual high school setting. Twenty-seven second-grade high school students (15 girls and 12 boys; Mage = 16.93 years, SD = 0.27) sat on either a conventional chair or a risshin chair in A-B-A order for approximately four weeks in total. One-way ANOVA revealed that (a) mental health score was highest in the intervention period than in the pre- or post-intervention period (p < .001; p = .002), and that (b) the living in the present moment score was higher in the intervention period than in the pre-intervention period (p < .001). Twocondition within-participant serial mediation analysis also showed that the use of the risshin chair affected mental health and daily meaning in life through a higher level of postural improvement and a faster level of classroom time perception change (indirect effect = 0.27, 95% CI [0.02, 0.74]; 0.28, 95% CI [0.04, 0.66]). The need for examining the effectiveness of longer-term postural interventions was discussed.