著者

宮口 和義 出村 慎一

出版者

日本体育測定評価学会

雑誌

体育測定評価研究 (ISSN:13471309)

巻号頁・発行日

vol.14, pp.43-52, 2015-03-31 (Released:2016-04-14)

参考文献数

38

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This study clarified the influences of wearing Japanese-style sandals on standing postural sway and posture in preschool children. The participants were 159 healthy children, aged between 4 and 5 years (sandal group: 106; control group: 53). Both groups were participating in indoor barefoot education. The experimental group wore sandals as indoor shoes for five months. The control group continued barefoot education for the same period. In both the groups, the soles' ground contact area and track length of center of pressure (T-COP) were measured before and after five months with a plantar pressure measurement device. Additionally, for the sandal group, their natural standing posture was photographed. Two-way ANOVA (analysis of variance) revealed the mean differences between the groups as well as the before–after ground contact area and T-COP. In the sandal group, the ground contact area became smaller due to the foot's arch formation. As for T-COP, the sandal group (p < 0.05) showed significant change, becoming smaller, but the control group did not. When the sandal groups' standing posture was observed post-measurement, these results suggested posture improvement in the straightening of the back. Consequently, Japanese-style sandals greatly influence standing postural sway and natural standing posture.

著者

宮口 和義 田口 師永

出版者

石川県立大学

雑誌

石川県立大学研究紀要 = Bulletin of Ishikawa Prefectural University (ISSN:24347167)

巻号頁・発行日

vol.5, pp.105-111, 2022

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本研究は児童を対象に、二重跳び最高記録を調査するとともに、前跳びによる 30 秒間および 10 秒間スピード跳びを測定し、両者の関係を検証するとともに、二重跳び習得に向けた明確な指標を提示することを目的とした。対象は 1 年から 6 年の小学生 1022 人(男子 538 人、女児 484 人)だった。二重跳びが 1 回以上跳べる児童は 1 年では 19.7% であったが、3 年で88.8%、6 年では 93.7% となっていた。5、6 年生でも 6% の児童が 1 回も跳べないことがわかった。二重跳びと 30 秒間スピード跳びとの間に中程度(r=0.45)の、10 秒間スピード跳びとの間に低い相関(r=0.37)が認められた。二重跳びのレベル別にスピード跳びの記録を比較した。その結果、30 秒間で 70 回以上跳ぶことができれば、二重跳びを 1 回跳べることが示唆された。二重跳びの練習方法の一つとしてスピード跳びが有効であることがわかった。

著者

宮口 和義

出版者

石川県立大学

雑誌

基盤研究(C)

巻号頁・発行日

2012-04-01

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近年、日本では子どもの体力・運動能力の低下に比例して転倒による子どもの事故や怪我が増えている。以前に比べ咄嗟時の反応が鈍くなっていると思われる。保育園で有効な運動プログラムを提供するためにも、遊びの反応時間への影響について検討しておく必要があろう。鬼ごっこやサッカーのような動的な遊びは、反応スピードと全身運動の敏捷性を発達させることがわかった。特に鬼ごっこを好む園児は左右の切り替え動作を含む敏捷性能力に優れているといえる。また、ラダー運動は今日の子ども達の各反応動作の改善に有効であることが示唆された。さらに、草履の着用はバランス能力に関わる足裏形成や立位姿勢の改善に有効であることがわかった。

著者

宮口 和義 出村 愼一 蒲 真理子

出版者

日本発育発達学会

雑誌

発育発達研究 (ISSN:13408682)

巻号頁・発行日

vol.2009, no.43, pp.43_1-43_10, 2009 (Released:2010-09-30)

参考文献数

17

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This study aimed to verify the achievability of various motor tasks using a children's ladder according to age level in preschool children, and to examine the relationship between motor tasks and fundamental motor ability. The subjects were 625 preschool children (300 boys and 325 girls) aged 4 and 5 years old. They performed nine kinds of ladder tasks and fundamental motor ability tests (20 meter dash, standing long jump, tennis-ball throw, and beam cross-jump). There are significant differences between the achievement rates of both age groups in all motor tasks. The 5 year old group showed higher values than the 4 year old group. The achievement rate of a quick skip was the low in both age groups. It was suggested that the relationship among motor tasks differs largely in both age groups from verifying correlations ; these figures being higher in the 5 year old group. Because the nervous system functions coordinating movement develops markedly between the ages of 4 and 5, this relationship may increase with age. Multiple correlations between the total score of motor ability and the nine ladder tasks were significant in both age groups (4 yrs : 0.547, 5 yrs : 0.502, p<0.05). It was suggested that the contribution of the “open-close jump” to the fundamental motor ability is substantial. Partial correlations for the “open-close jump”, “quick skip”, and “zigzag jump” were large in the 4 year old group. The scores for the “quick skip”, “twist jump”, and “lateral dash” were greater in the 5 year old group. It is therefore concluded that these motor tasks are effective in improving the coordination ability of today's children.

著者

宮口 和義 出村 慎一

出版者

日本発育発達学会

雑誌

発育発達研究 (ISSN:13408682)

巻号頁・発行日

vol.2012, no.55, pp.23-32, 2012 (Released:2012-10-09)

参考文献数

33

被引用文献数

2 2

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This study evaluates the agility of preschool children by measuring simple reaction time and repeated sideways jumps. It also examines the influence of video games and exercise on development of the agility. The subjects were 636 preschool children(315 boys and 321 girls)aged 4 to 5. They performed the simple reaction time test with light stimulation and the repeated sideways jump test for five seconds. The agility score was calculated from the total T-score of both agility tests. This study investigates video games and preferred play time for the benefit of parents and nursery school teachers. The test results show that 37.6% of the 4-year-olds and 36.5% of the 5-year-olds frequently played video games and 57.1% of the 4-year-olds and 61.0% of the 5-year-olds showed a predilection for whole-body dynamic play(tag, jump-rope, dodge ball, etc.). The 5-year-old children were superior to the 4-year-old children in both agility tests. The children who played video games well showed higher values in simple reaction time than the children who did not play video games, but not in the repeated sideways jumps. The children who like whole-body dynamic play scored higher than the children who like static play, not only in simple reaction time, but also in the repeated sideways jump test. Although video games affect reaction time of the upper limbs withrespect to visual information, there is no effect on agility for the rest of the body. Enforcing exercise and play time activities, however, would be an effective way to improve the agility of the whole body, in addition to the reaction time of the upper limbs.

著者

宮口 和義 出村 慎一

出版者

日本発育発達学会

雑誌

発育発達研究 (ISSN:13408682)

巻号頁・発行日

vol.2013, no.61, pp.1-8, 2013-11-01 (Released:2014-01-30)

参考文献数

21

被引用文献数

2

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This study aimed to clarify the effects of wearing Japanese-style sandals, which was conducted as a part of barefoot education on sole shape and position of the center of foot pressure (CFP) in preschool children. The subjects were 81 healthy children ages 4 to 5 (sandal group:28;control group:53) . Both groups were conducting indoor barefoot education. The sandal group wore sandals when commuting to school, going for a walk and playing outdoors for four months. The control group wore casual shoes in that time. The ground contact area of the soles and CFP were measured before and after four months (run-in period) in both groups. In the sandal group, the ground contact area of the foot became smaller with the formation of arch of foot. Specifically, a marked effect was found in the five-year-old children. As for CFP, there were significant changes in both groups. However, a change in the CFP towards the front of foot in the sandal group was large and the position of CFP varied from negative to positive along the Y-coordinate in the five-year-old children. From this, it is inferred that the effects of using Japanese-style sandals on changes in childrenʼs feet are large, even in preschools that use barefoot education.

著者

宮口 和義 出村 慎一

出版者

日本発育発達学会

雑誌

発育発達研究 (ISSN:13408682)

巻号頁・発行日

vol.2013, no.61, pp.1-8, 2013

被引用文献数

2

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This study aimed to clarify the effects of wearing Japanese-style sandals, which was conducted as a part of barefoot education on sole shape and position of the center of foot pressure (CFP) in preschool children. The subjects were 81 healthy children ages 4 to 5 (sandal group:28;control group:53) . Both groups were conducting indoor barefoot education. The sandal group wore sandals when commuting to school, going for a walk and playing outdoors for four months. The control group wore casual shoes in that time. The ground contact area of the soles and CFP were measured before and after four months (run-in period) in both groups. In the sandal group, the ground contact area of the foot became smaller with the formation of arch of foot. Specifically, a marked effect was found in the five-year-old children. As for CFP, there were significant changes in both groups. However, a change in the CFP towards the front of foot in the sandal group was large and the position of CFP varied from negative to positive along the Y-coordinate in the five-year-old children. From this, it is inferred that the effects of using Japanese-style sandals on changes in childrenʼs feet are large, even in preschools that use barefoot education.