著者

秋原 悠 小田 俊明 山本 忠志 曽我部 晋哉

出版者

Japan Society of Human Growth and Development

雑誌

発育発達研究 (ISSN:13408682)

巻号頁・発行日

vol.2020, no.89, pp.22-32, 2020 (Released:2020-12-25)

参考文献数

25

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The purpose of this study was to clarify the characteristics of body composition of Japanese elementary and junior high school students. In this study, body composition was measured using a body composition analyzer (Inbody470).In this method, body composition take as a 4-components model (total body water/protein/mineral/body fat mass), and the subdivided data can be easily analyzed. Subjects that were included in this study total 791 students (Boys: 373, Girls: 418) from the 1st grade of elementary school to the 3rd grade of junior high school.As a result of the analysis, both the boys and girls height and weight gradually increased year by year. The amount of fat-free mass also increased, but body fat mass decreased in boys after the 6th grade of elementary school. For the girls, it increased year by year. The results showed the differences for each gender in all components since junior high school. In particular, there was a marked difference in the 3rd grade of junior high school (total body water: p < 0.001, protein: p < 0.001, mineral: p < 0.001, body fat mass: p < 0.001). In the 4-components, regardless of the age difference in junior high school students, only protein significantly increased in boys (p < 0.05). For the girls, total body water (p < 0.001), protein (p < 0.001), and minerals (p < 0.01) were significantly decreased, and body fat percentage (p < 0.001) was significantly increased.This study clarified the gender differences and age differences of the 4 components of the body. From these results, the deterioration of the body components especially for junior high school student girls were concerned, and the necessity of taking countermeasures in exercise habits and lifestyle habits were indicated.

著者

広瀬 統一 平野 篤

出版者

Japan Society of Human Growth and Development

雑誌

発育発達研究 (ISSN:13408682)

巻号頁・発行日

vol.2008, no.37, pp.17-24, 2008-02-01 (Released:2010-03-12)

参考文献数

21

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In this study, we examined the relationship between birth-month distribution, skeletal age, height, and weight in adolescent soccer players. The participants were 271 well-trained male adolescent soccer players aged between 9.1 to 15.9 years (N=101 for U12, N=132 for U15, and N=38 for U18). They were divided into four groups according to their month of birth (Q1: Apr-Jun, Q2: Jul-Sep, Q3: Oct-Dec, and Q4: Jan-Mar). Then, the number of players in each group was compared with the standard population of children in Tokyo. Our result showed significant asymmetries in the birth-month distribution for participants of all age groups (p<0.001); it was less than 10% for participants belonging to group Q4. However, no significant difference in maturation ratio (skeletal age-chronological age) was seen among the groups. Moreover, skeletal age did not differ significantly among birth-month for all groups except for Q3. These tendencies were also seen in height and weight distributions. These findings imply that players who biologically mature at an early stage may be selected systematically as soccer players at competitive levels; however, biases based on maturation and physique may cause asymmetric birth-month distribution, as seen in this study.

著者

丹羽 昇

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.1995, no.23, pp.1-7, 1995-06-30 (Released:2010-03-16)

参考文献数

12

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The posture of school children was studied to find the method to correct their poor postures. The development of the back muscles which are related to the posture maintenance and the equilibrium was also examined.Moiré-topography method was used for measurement. Subjects were 537 boys and girls at 2nd to 6th grade of elementary school and the their full-length bach figures were photogrphed.The following results were obtained.1. Those who had an abnormal posture were 239 pupils, 44.5% of the whole. Those who had a normal one were 298, 55.5%.2. As for the reform training, the following exercise proved to be effective. The child whose right side waist is higher than the left should turn the face rightward, wherever practicable, carry the bag in the right hand, and stand on an inclined plane as the right side on the inclined side. The child whose left waist is higher than the right should do the reverse movements.3. Most of the child who had good posture could stand on one leg with eyes closed for longer time, and balanced themselves on the forward side of their legs when they stood correct. Their good poise had no relation to the development of the back muscles.

著者

國土 将平 中野 貴博 佐川 哲也 笠井 直美 小磯 透 鈴木 和弘 下田 敦子 大澤 清二

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.2010, no.46, pp.46_11-46_26, 2010 (Released:2011-02-20)

参考文献数

36

被引用文献数

1

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The purpose of this study was to investigate the standardization of height growth curves of 8 ethnic groups in Thailand and Union of Myanmar. The height of 16,000 children from 5 to 18 years old of 8 ethnic groups, i. e., Thai, Karen, Hmong, Lisu, Akha, and Lahu in Thailand, Burmese and Mon in Myanmar, was measured from 1994 to 2004 in Thailand, from 2005 to 2008 in the Myanmar. Modified BTT model was applied to height growth curve, and the fluctuation of standard deviation was smoothed using weighted moving variation and smoothing function developed by the authors. Finally growth charts were obtained using z-score of normal distribution. Resultant growth charts were generally satisfactory and were seemed to be useful from the perspective of data utilization. Though there are a few problems on the growth charts such as variance was decreased for more than 15 years old, or height growth has continued till 18 years old in some ethnic groups. Representing heights were different more than 10 cm among ethnic groups at 18 years of age. It was confirmed that it is important to create a growth chart by ethnic group respectively and utilize it in order to evaluate properly the growth status and the nutritional condition of the children.

著者

田口 喜久恵 遠藤 知里 栗田 泰成 田村 元延

出版者

Japan Society of Human Growth and Development

雑誌

発育発達研究 (ISSN:13408682)

巻号頁・発行日

vol.2017, no.74, pp.34-44, 2017 (Released:2017-06-27)

参考文献数

21

被引用文献数

1

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The aim of this study was to clarify the grip strength and progress of development in infants aged 0 to 2 years old. The subjects were 396 infants and we measured their grip strength with grip dynamometer (T. K. K. 1269r) for the infants. Date on 313 subjects out of the 396 were analyzed. The average of grip strength was followed:0 to 5 months was 0.81 kg, 6 to 11 months was 1.05 kg, 12 to 17 months was 1.45 kg, 18 to 23 months was 1.72 kg, 24 to 29 months was 2.31 kg and 30 to 35 months was 3.00 kg. Significant difference between boys and girls were not shown. The relationships between grip strength and age was the most significant, then height and weight next to age. Grip strength increased with age, as a result, we were able to draw the growth diagrams for grip development in infants aged 0 to 2 years old.

著者

カルマール 良子

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.2017, no.76, pp.1-7, 2017 (Released:2017-12-09)

参考文献数

16

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In Japan previous data did not consider distinguishing between infants' creeping, hands and knees crawling and hands and feet crawling. Therefore the process of these motor skills has not been clearly understood in the national literature and it is incomparable with well-defined international data. In 2015 a detailed questionnaire survey of 307 infants in three prefectures (Hyogo, Okayama and Tottori) revealed that the majority of infants (76.1%) did both creeping and hands and knees crawling. The length of crawling was most frequent between 3 and 4 months, which is a similar figure compared to international research findings. The results further included the measure of shuffling, which is an irregular way of crawling on the back. Substantially 14.7% infants did not process with hands and knees crawling. 11.1% of the group skipped the complete acquisition process and progressed to walking without doing either creeping or any types of crawling.

著者

大澤 清二 下田 敦子 タン ナイン

出版者

Japan Society of Human Growth and Development

雑誌

発育発達研究 (ISSN:13408682)

巻号頁・発行日

vol.2021, no.90, pp.1-10, 2021 (Released:2021-07-02)

参考文献数

10

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The existence of adolescent growth spurts (PHV, Peak Height Velocity) has long been the norm for human height growth theory. However, according to Ohsawa's report, the hunter-gatherer Mlaburi, who lived in the forests of Thailand and Laos, did not see the adolescent growth spurt of their stature. The study reexamined this issue from growth data for the hunter-gatherer Salone (Moken) living in the Andaman Waters of Myanmar. As a result, similar to Mlabri, the adolescent growth spurt (PHV) could not be observed in Salone. The growth period of Salone was very long, and stature continued to grow to nearly 20 years of age.

著者

田中 綾帆 野井 真吾

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.2016, no.73, pp.1-12, 2016

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<p>Background:In recent Japan, the sleep situations of children are worried about. As one background of such a problem, the screen thyme of children increase is regarded as uneasiness. Therefore, the practices of "no media" which limits screen time are spreading all over the country.</p><p>Objective:The purpose of this study was to inspect the effects of the "no-media" practice in junior high school.</p><p>Methods:Subjects were 672 children at a public junior high school in Shizuoka. All investigations were carried out on control day and practice period in October 2014. The sleep situation and subjective symptoms of fatigue were measured in this survey.</p><p>Results:Subjects were early to bed and early to rise. There were also few shortage and issues of sleep. Additionally, they had few subjective symptoms of fatigue and Internet addiction tendency. Furthermore, as a result of having inspected the "no media" practice, the bed duration was significantly earlier and sleep time was also significantly longer in practice period. The subjective symptoms of fatigue in practice period were decreased. In this study, the sleep situations and subjective symptoms of fatigue by the difference of the challenge item in this practice were also analyzed. As a result, in the group which challenged the practice of "no media", it was shown that the sleep situation was improved and tiredness was decreased.</p><p>Conclusion:From the above facts, we reached the conclusion that the "no media" practice analyzed in this study is effective in children's health.</p>

著者

平塚 寛之 引原 有輝

出版者

Japan Society of Human Growth and Development

雑誌

発育発達研究 (ISSN:13408682)

巻号頁・発行日

vol.2015, no.67, pp.1-15, 2015 (Released:2015-08-04)

参考文献数

21

被引用文献数

1 3

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Primary aim of this study is to investigate the characteristics of playgrounds based on area, the number of playground equipment and its space. Moreover, we examined the use frequency and the interest in playground of primary schoolchildren. Three hundred ninety two playgrounds in major urban area and medium-size city were classified into 7 categories based on the arrangement of playground equipment space, open space and nature space. Moreover, total number of playgrounds was divided equally among four based on playground area. We investigated the size and the kinds of playground equipment by each 25 percentile of area. We asked 4111 subjects of primary schoolchildren to answer eight questions about usage situation and four questions about the interest in playground. As a result, this research showed that most of playgrounds consisted only of a playground equipment space. In addition, we clarified that there were a lot of playground equipment in playgrounds categorized into the highest quartile compared to other quartiles. On the other hand, the kinds of equipment in playgrounds larger than middle scale appear to be similar. With regard to status of utilization, “unused” and “1-2 times a week” were mostly selected. The duration of usage on weekends tends to be divided into “less than 30 min” and “more than 2 hours”. In conclusion, it was likely that children's favorite equipment differed from what they usually used. Therefore, it might be important to establish playground which consists the various kinds of equipment and space. Moreover, we suggest that several playgrounds around children's houses should be more conceptually clearly-defined on equipment and space in future.

著者

中田 英雄

出版者

Japan Society of Human Growth and Development

雑誌

発育発達研究 (ISSN:13408682)

巻号頁・発行日

vol.1995, no.23, pp.67-73, 1995-06-30 (Released:2010-03-16)

参考文献数

46

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It is reported that physical growth of blind and partially sighted children is in a poor level and the adolescent growth spurt is earlier in the blind than in the partially sighted and the sighted. Most of studies of age at menarche have noted earlier onset in the blind than in the sighted. These studies have suggested that blindness is associated with an age of menarche which is earlier than sighted adolescents. Previous studies described delays in the appearance of motor skills, especially agility, with poor physical work capacity and balance. A recent research has suggested that the physical work capacity and postural control of the blind and partially sighted can be developed by appropriate training. By some well-designed program, the blind and partially sighted children should be able to enhance the ability to use their potential to the fullest. The adapted physical activity should be better understood.

著者

アチャヤ ウシャ 下田 敦子 大澤 清二

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.2014, no.62, pp.12-23, 2014-03-01 (Released:2014-05-05)

参考文献数

19

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This study investigated the differences in physical characteristics of Nepalʼs major castes and ethnic groups to create more appropriate standard values with which to evaluate the growth and development of Nepalese children. Data was collected to determine the unique physical characteristics for each group, and this data was further analyzed to combine groups into clusters. Six body measurements (height, weight, chest circumference, sitting height, biacromion breadth, skinfold thickness) were taken of 1,344 children, ages 2-6, from 6 castes and 1 ethnic group in the Sunsari and Sankhuwasava districts of Nepal. Analysis of this data showed growth and physical attributes characteristic for each group. Cluster analysis (Wardʼs Method) was then used to determine similarities between the groups, which resulted in three clusters:high and middle caste cluster (Brahman, Chhetri, Yadav and Koiri), a low caste cluster (Kami and Mushar), and a Sherpa ethnic group cluster. These results indicate that standard values established for each of these clusters will be needed to more accurately evaluate the physical growth of Nepalese children. Because of the distinct physical growth characteristics of each cluster, Nepalese children cannot be properly evaluated using a single standard value for all groups.

著者

遠山 健太 鈴木 宏哉 渡 正

出版者

Japan Society of Human Growth and Development

雑誌

発育発達研究 (ISSN:13408682)

巻号頁・発行日

vol.2023, no.95, pp.52-70, 2023 (Released:2023-08-18)

参考文献数

36

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The decline in children's physical fitness has become a widely recognized problem in recent years. To address this issue, the Japanese government introduced the New Physical Fitness Test in 2008. The latest report shows that more than 80% of elementary schools throughout Japan have been complying with this directive. According to the Japan Sports Agency, 71.1% of the schools were using the test results to help develop their yearly plans; however, as the questionnaires were answered by each of the schools, it is unclear whether the elementary school teachers were actually using the test results effectively or not. The purpose of this research is to identify elementary school teachers' attitude toward the physical fitness test, and to determine how they are utilizing it as an educational tool to stimulate and promote students' personal fitness goals. The research was conducted among 840 teachers who are currently working at elementary schools across Japan. The questionnaires consisted of a total of 11 questions, of which nine required descriptive answers. The KJ method was used to categorize each answer into smaller groups of similar answer. The results showed that the elementary school teachers had both positive and negative perceptions of the physical fitness test, and the two major findings were as follows: (1) Although some of the teachers used the fitness test in their class, they were unable to identify a relationship between the education guidelines and the fitness test; therefore, they could not utilize the test results effectively. (2) Teachers felt burdened by the limited time they have to prepare and manage the New Physical Fitness Test. According to these findings, there should be clearer guidelines on how to use the test effectively, so that both teachers and students will be able to utilize the assessment and implement it to improve their fitness.

著者

浦上 大輔 浦田 清 布上 恭子 渡会 雅明 浜野 貢 須田 力 中川 功哉

出版者

Japan Society of Human Growth and Development

雑誌

発育発達研究 (ISSN:13408682)

巻号頁・発行日

vol.1997, no.25, pp.20-28, 1997-07-31 (Released:2010-03-16)

参考文献数

11

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The purpose of this study was to investigate the life styles and physical activities of senior high school and technical college students in a snowy region both in snowfall and non-snowfall season. Questionnaires on the life style and physical activity were sent to 1675 students in Hokkaido.The following results were obtained.1) The students went to bed and got up earlier during snowfall season than during non-snowfall season. However, the hours of sleep were almost the same in both seasons.2) More than a half of the students attend to school in snowfall season by different way from non-snowfall season. The commuting time in snowfall season was much longer than that in non-snowfall season.3) More than one-third of the students answered that the amount of their physical activities decreased during the snowfall season. This trend was more noticeable among students who exercised 3 or more times a week than among students who exercised less than 3 times a week.4) For students who did not participate in sports club activities, the shoveling snow in winter was found to be effective to compensate for hypokinetic sensation exercise.5) In snowfall season, students tend to exercise for prolonged time with low frequency and low intensity, however in non-snowfall season they tend to exercise for shorter time with high frequency and high intensity.

著者

秋武 寛 安部 惠子 三村 寛一

出版者

Japan Society of Human Growth and Development

雑誌

発育発達研究 (ISSN:13408682)

巻号頁・発行日

vol.2016, no.70, pp.17-26, 2016 (Released:2016-10-14)

参考文献数

39

被引用文献数

2

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Children need a minimum of 60 minutes of physical activity per day, a standard proposed by various national guidelines. To our knowledge, however, it is unclear whether there is any positive association between motor ability and vigorous intensity time in preschool children. Therefore, this study aimed to clarify the relationship between motor ability and step counts or vigorous physical activity time in preschool children (n=754, 383 boys and 371 girls). We measured the subjects' motor ability while performing 6 activities. The performance in each activity was rated on a 5-point scale (5-1), as suggested by Japanese previous study. Daily physical activity was assessed using accelerometers (Lifecorder EX, Suzuken, Japan) throughout the day for 7 consecutive days. LC intensity assessed LC1-6 (lower intensity than runnning) and LC7-9 (higher intensity than running). LC7-9 time (min/day) was from 23.4±8.3 to 24.4±8.2 in boys and from 18.0±5.2 to 18.9±7.8 in girls on weekdays and from 15.5±9.1 to 17.0±10.7 in boys and from 15.2±8.3 to 15.5±9.4 in girls on weekends, respectively. The total fitness scores were weakly but significantly positively correlated with step counts in both sexes and LC7-9 time in girls. Until B rank in the total fitness scores, step counts (step/day) needed 14685.4 boys and 12419.0 girls on weekdays, and 11384.4 boys and 10398.0 girls on weekends, respectively. LC7-9 needed 24.1 boys and 18.5 girls on weekdays, and 21.4 boys and 17.1 on weekends at least, respectively. Our findings were suggested daily step counts and LC7-9 time to improve motor ability in preschool children.

著者

梅﨑 さゆり 中谷 敏昭 山本 大輔 中須賀 巧 橋元 真央

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.59, pp.27-40, 2013 (Released:2013-07-23)

参考文献数

38

被引用文献数

1 3

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This study investigated the effects of a coordination exercise program on quantitative and qualitative changes of throwing and catching ability with the subjects of 5 and 6-year-old 30 preschool children. A4-week control period and a 4-week exercise period were separately set. The exercise program was conducted for 40 minutes a day following the instruction guidance, during 8 days over 4 weeks. The subjects performed motion capacity tests (standing broad jump, side jump) and ball handling tests (control, catching,tennis ball handling) in each period. We evaluated the throwing and catching motions by using five typical developmental stages of motion patterns. As the results, we found a statistically significant increase in the side jump, catching, tennis ball handling and score evaluation for throwing and catching motions in the exercise period compared to the control period. The same results were obtained in both genders. These results suggested that, the coordination exercise program focused on basic ball handling technique may be beneficial to enhance the agility and ball handling capacity in preschool boys and girls aged 5-6, who need an adequate exercise instruction to improve their throwing and catching motions.

著者

渡邊 將司 田村 真理子

出版者

Japan Society of Human Growth and Development

雑誌

発育発達研究 (ISSN:13408682)

巻号頁・発行日

vol.2017, no.74, pp.1-8, 2017 (Released:2017-06-27)

参考文献数

29

被引用文献数

2

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This study was conducted to elucidate the characteristics of children who were born later in the school year, exhibiting better physical fitness. The subjects were 1202 public elementary school children (grades 1-6) in Ibaraki prefecture, for whom birth date, height, weight, physical fitness test scores, and physical activity had been assessed by questionnaire. They were divided into four categories by birth date:Q1, April-June;Q2, July-September;Q3, October-December;and Q4, January-March (including April first). All data were integrated after classification by grade and gender. Physical fitness groups were defined to include subjects who had more than 50 physical fitness deviation score as a higher physical fitness group (HPF). The others were a lower physical fitness group (LPF). Results of statistical analysis show for Q4 that physical activity of HPF had a higher value than LPF, although no difference was found for height or BMI. For HPF, a lower value was found for height of Q4 than for either Q1 or Q2, although no difference was found for BMI or physical activity. These results demonstrate that although elementary school children who were born later in the school year and who had higher physical fitness showed poor body size, they attained higher physical fitness through higher levels of physical activity.

著者

鈴木 綾子 野井 真吾

出版者

Japan Society of Human Growth and Development

雑誌

発育発達研究 (ISSN:13408682)

巻号頁・発行日

no.36, pp.21-26, 2007

被引用文献数

1

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The purpose of this study was to make clear the relationship between sleeping habits and sleeping problems and/or physical discomforts among junior high school students. The subjects were comprised of 146 boys and 170 girls in three public junior high schools. The investigation was carried out by a questionnaire in September 2003. The questionnaire contained questions about the time subjects go to bed, time subjects wake up, sleeping problems and physical discomfort. The main findings were as follows: 1) The time subjects go to bed becomes later with increasing age among both boys and girls (p<0.05). Meanwhile, the fluctuations in time to bed showed no significant differences according to sex or grade. 2) The group who went to bed late had significantly higher values for sleeping problem scores and physical discomfort scores (p<0.05). 3) The sleeping problem scores according to fluctuations in time to bed were: for the low fluctuations group, 12.5±13.7 points, 18.7±17.2 points for the middle fluctuations group, and 24.3±20.5 points for the high fluctuations group. The sleeping problem scores for the high fluctuations group were significantly higher than it was for the low fluctuations group (p<0.05). 4) The physical discomfort scores were 20.1±29.8 points for the low fluctuations group, 29.5±30.3 points for the middle fluctuations group and 41.3±30.2 points for the high fluctuations group. The physical discomfort scores for the high fluctuations group were significantly higher than those for the low and middle groups (p<0.05).<br>From the above, it was shown that there is a need for the regulation of time to bed to be added to traditional health education.

著者

鈴木 綾子 野井 真吾

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.2007, no.36, pp.21-26, 2007-10-01 (Released:2010-03-12)

参考文献数

20

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The purpose of this study was to make clear the relationship between sleeping habits and sleeping problems and/or physical discomforts among junior high school students. The subjects were comprised of 146 boys and 170 girls in three public junior high schools. The investigation was carried out by a questionnaire in September 2003. The questionnaire contained questions about the time subjects go to bed, time subjects wake up, sleeping problems and physical discomfort. The main findings were as follows: 1) The time subjects go to bed becomes later with increasing age among both boys and girls (p<0.05). Meanwhile, the fluctuations in time to bed showed no significant differences according to sex or grade. 2) The group who went to bed late had significantly higher values for sleeping problem scores and physical discomfort scores (p<0.05). 3) The sleeping problem scores according to fluctuations in time to bed were: for the low fluctuations group, 12.5±13.7 points, 18.7±17.2 points for the middle fluctuations group, and 24.3±20.5 points for the high fluctuations group. The sleeping problem scores for the high fluctuations group were significantly higher than it was for the low fluctuations group (p<0.05). 4) The physical discomfort scores were 20.1±29.8 points for the low fluctuations group, 29.5±30.3 points for the middle fluctuations group and 41.3±30.2 points for the high fluctuations group. The physical discomfort scores for the high fluctuations group were significantly higher than those for the low and middle groups (p<0.05).From the above, it was shown that there is a need for the regulation of time to bed to be added to traditional health education.

著者

Gallahue David L.

出版者

Japan Society of Human Growth and Development

雑誌

発育発達研究 (ISSN:13408682)

巻号頁・発行日

pp.15-16, 2004

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今回の講演の焦点は, 記述的および解説的な運動発達の理論モデルを示すことである. 記述的モデルについては, 出生から老年に至る過程において普通に成長していく個人が通過する典型的な局面と段階を表現する砂時計モデルを中心に示す. 解説的モデルについては, 運動課題の必要条件, 個人の生物学的特徴および学習環境条件の中で生ずる一連の過程を表現する逆三角形モデルを利用する.<br>このような知識は, 同時に運動スキル習得の過程に関して我々が理解していることと結び付けられる. すなわち, 新しい運動スキルの習得は段階および水準ごとに生じ, 学習者の目標と同様に学習者の認識状況の両方から検証されうる.<br>最後に, 我々は運動発達と運動スキル習得について観察される水準を考慮に入れて, 学習者の役割に対する指導者の役割について検討する. この場合の論点は, 両者を考慮して, 運動スキルの教師としての我々は, 運動スキルの観察された水準において良い変化をもたらすように利用された教授法に関して, 我々の行動を適応させることができるということである.

著者

鈴木 宏哉 西嶋 尚彦 鈴木 和弘

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.2010, no.46, pp.46_27-46_36, 2010 (Released:2011-02-20)

参考文献数

22

被引用文献数

2 1

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The purpose of this study was to examine the effects of a change in life habits on a change in physical fitness in Japanese children using 3-year longitudinal data. The participants were 456 Japanese children aged 6-9 (230 boys, and 226 girls). Data were collected on 3 occasions over a one year period. Survey items included life habits (exercise habits, eating habit, sleeping habit, and TV/video game viewing habit), physical fitness (Japan Fitness Test : Grip Strength, Sit-ups, Sit & Reach, Side Steps, 20 m Shuttle Running, 50 m Dash, Standing Long Jump, and Handball Throwing). Physical fitness in participants was graded into five categories (A-E) according to norm-referenced criteria. Participants of lower two categories (D and E) of physical fitness level was defined as a lower level group. A latent growth modeling was used to examine the influence of the change in a life habit score to a change in a physical fitness score. With the physical fitness change factor, there were statistically significant and positive direct effects from the change in eating habits (slope) only in the lower level group. There were also significant effects from the initial levels of the eating habits, the exercise habits in the all data, and all life habits except for TV/video game viewing habit in the lower level group. These findings, with limited samples and a statistical method, might suggest that an improvement of eating habits has an effect on improvement of physical fitness in a lower level group of physical fitness, and initial levels of life habits also affects improvement of physical fitness.