Physical activity,sedentary behaviour,and socioeconomic status among Finnish girls and boys aged 6–8 years

We studied differences in physical activity (PA), sedentary behaviour (SB), and the types of PA and SB between Finnish girls and boys and children from different socioeconomic backgrounds (SES). We assessed PA, SB, parental education, and household income using detailed questionnaires in a representative population sample of 486 children (238 girls, 248 boys) aged 6–8 years. Girls spent on average 1.7 h/day and boys 2.0 h/day in total PA (p?=?0.002). Altogether 66% of girls and 54% of boys had less than 2 h of total PA per day (p?=?0.012). Girls had lower levels of unsupervised PA (45 vs. 54 min/day, p?=?0.001), supervised PA (1.5 vs. 1.9 h/week, p?=?0.009), and PA during school recess (1.8 vs. 1.9 h/week, p?=?0.032) than boys. Girls had higher levels of total SB (3.8 vs. 3.4 h/day, p?=?0.015) but lower levels of screen-based SB (1.5 vs. 1.9 h/day, p?<?0.001) than boys. Lower parental education and household income were associated with lower levels of supervised PA in girls (p?=?0.011 and p?=?0.008, respectively) and in boys (p?=?0.006 and p?=?0.003, respectively). Lower parental education and household income were also related to higher levels of screen-based SB in boys (p?=?0.005 and p?<?0.001, respectively) but not in girls. Girls have lower levels of total, unsupervised, and supervised PA, PA during recess, and screen-based SB but higher levels of total SB than boys. Lower parental education and household income are associated with lower levels of supervised PA in both genders and higher levels of screen-based SB in boys.     

Physical fitness normative values for 6–18-year-old Greek boys and girls,using the empirical distribution and the lambda,mu, and sigma statistical method

The aim of the this study was to establish age- and gender-specific physical fitness normative values and to compare percentiles and Z scores values in a large, nationwide sample of Greek children aged 6–18 years. From March 2014 to May 2014, a total of 424,328 boys and girls aged 6–18 years who attended school in Greece were enrolled. The studied sample was representative, in terms of age–sex distribution and geographical region. Physical fitness tests (i.e. 20?m shuttle run test (SRT), standing long jump, sit and reach, sit-ups, and 10?×?5?m SRT) were performed and used to calculate normative values, using the percentiles of the empirical distributions and the lambda, mu, and sigma statistical method. Normative values were presented as tabulated percentiles for five health-related fitness tests based on a large data set comprising 424,328 test performances. Boys typically scored higher than girls on cardiovascular endurance, muscular strength, muscular endurance, and speed/agility, but lower on flexibility (all p values <0.001). Older boys and girls had better performances than younger ones (p?相似文献   

Low fundamental movement skill proficiency is associated with high BMI and body fatness in girls but not boys aged 6–11 years old

This study examined differences in children’s body mass index (BMI) and body fatness (BF%) as a function of gender and fundamental movement skill (FMS) proficiency. Following ethics approval and parental consent, 248, 6–11 year-old children (112 boys, 136 girls) underwent assessment of 7 FMS: sprint run, side gallop, hop, kick, catch, throw and vertical jump. FMS tertiles (“high”, “medium” or “low” FMS) were created based on the summed components of the FMS. Skinfold measures were used to calculate BF%. Physical activity (PA) was assessed using pedometry and maturation predicted using anthropometry. Data were analysed using a 2 (Gender) × 3 (FMS tertile) ways analysis of covariance (ANCOVA), controlling for age, maturation and PA. Age (P = .001) and maturation (P = .006) were associated with BMI. Girls classified as high FMS proficiency had significantly lower BMI compared to girls with low and medium FMS proficiency. Age (P = .0001) and maturation (P = .007) were associated with BF%. BF% was also higher for girls with low FMS compared to those with medium and high FMS. BF% and BMI were not different across FMS tertile in boys. Such findings suggest focusing on FMS may be especially important for healthy weight, particularly in girls.     

The relationship between adolescents’ physical activity,fundamental movement skills and weight status

The aim of this study was to determine if a potential relationship among physical activity (PA), fundamental movement skills and weight status exists amongst early adolescent youth. Participants were a sample of 85 students; 54 boys (mean age = 12.94 ± 0.33 years) and 31 girls (mean age = 12.75 ± 0.43 years). Data gathered during physical education class included PA (accelerometry), fundamental movement skills and anthropometric measurements. Standard multiple regression revealed that PA and total fundamental movement skill proficiency scores explained 16.5% (P < 0.001) of the variance in the prediction of body mass index. Chi-square tests for independence further indicated that compared with overweight or obese adolescents, a significantly higher proportion of adolescents classified as normal weight achieved mastery/near-mastery in fundamental movement skills. Results from the current investigation indicate that weight status is an important correlate of fundamental movement skill proficiency during adolescence. Aligned with most recent research, school- and community-based programmes that include developmentally structured learning experiences delivered by specialists can significantly improve fundamental movement skill proficiency in youth.     

Lacrosse-related injuries in boys and girls treated in U.S. emergency departments, 2000–2016

BackgroundLacrosse is one of the fastest-growing sports in the United States. Its rules regarding permitted contact differ by sex and age. There are no known studies using a nationally representative data set to analyze lacrosse injury patterns over several years by sex and age in the youth population.MethodsA retrospective analysis was performed using data from the National Electronic Injury Surveillance System for youth aged 11–18 years who were treated for lacrosse-related injuries in U.S. emergency departments from 2000 to 2016. Based on our review of the case narratives, we created and coded a new injury-mechanism variable. We generated national estimates from 6406 cases.ResultsAn estimated 206,274 lacrosse-related injuries to youths aged 11–18 years were treated in U.S. emergency departments from 2000 to 2016. The rate of injuries per 10,000 significantly increased from 1.9 in 2000 to a peak of 5.3 in 2012 (p < 0.0001), followed by a significant decrease to 3.4 in 2016 (p = 0.020). Injury mechanism, body part injured, and diagnosis differed by sex. Boys were 1.62 times (95% confidence interval (95%CI): 1.25–2.09) more likely than girls to be injured by player-to-player contact. Girls were 2.21 times (95%CI: 1.96–2.49) more likely than boys to have non-contact injuries. Overall, as age increased, the percentage of injuries from lacrosse sticks decreased and player-to-player contact increased.ConclusionDespite additional protective regulations in the sport, lacrosse is an important source of injury where we continue to see differences by sex and age. This study supports the continuation, modification, and addition of rules aimed at reducing lacrosse injury risk.     

Skeletal maturation,fundamental motor skills and motor coordination in children 7–10 years

Relationships between skeletal maturation and fundamental motor skills and gross motor coordination were evaluated in 429 children (213 boys and 216 girls) 7–10 years. Skeletal age was assessed (Tanner-Whitehouse 2 method), and stature, body mass, motor coordination (Körperkoordinations Test für Kinder, KTK) and fundamental motor skills (Test of Gross Motor Development, TGMD-2) were measured. Relationships among chronological age, skeletal age (expressed as the standardised residual of skeletal age on chronological age) and body size and fundamental motor skills and motor coordination were analysed with hierarchical multiple regression. Standardised residual of skeletal age on chronological age interacting with stature and body mass explained a maximum of 7.0% of the variance in fundamental motor skills and motor coordination over that attributed to body size per se. Standardised residual of skeletal age on chronological age alone accounted for a maximum of 9.0% of variance in fundamental motor skills, and motor coordination over that attributed to body size per se and interactions between standardised residual of skeletal age on chronological age and body size. In conclusion, skeletal age alone or interacting with body size has a negligible influence on fundamental motor skills and motor coordination in children 7–10 years.     

Cultural Imperialism,Nationalism, and the Modernization of Physical Education and Sport in China, 1840–1949

Abstract

This paper examines how missionary educational institutions and Young Men’s Christian Association physical education and sport programmes, in conjunction with the nation-building project of the Nationalist government, transformed and modernized physical education and sport in China from 1840 to 1937. The concepts of cultural imperialism and nationalism are central to this study, to understand how the two interacted in the process of the development of modern physical education and sports in China. This paper argues that the cultural imperialism model is ineffective for an understanding of the impact of missionaries on Chinese society and the subsequent transformation and indigenization of physical education and sport in modern China. More precisely, the way in which Chinese nationalism played an active role in resisting, selecting, and reshaping the cultural products (modern physical education and sport) evidences a process that was an active negotiation, rather than a passive consumption, of Western culture. This said, Christian physical education and sport programmes had long-lasting effects on how physical education and sports became the way to define ‘modern’ bodies as they were incorporated into the wider education programme of modernizing China under the Nationalist government.     

Christianity and the Rise of Western Physical Education and Sport in Modern China, 1840–1920s

Christianity, as practised by missionary educational institutions and the Young Men's Christian Association (YMCA) and Young Women's Christian Association (YWCA), was an important means of introducing and popularizing Western physical education and sport in modern China from 1840 to the 1920s. The research investigates how and why missionary educational institutions and the YMCA and YWCA contributed to the rise of physical education and sport in modern China. This analysis examines the activities of missionary educational institutions and the YMCA and YWCA in China during this period to uncover what really contributed to pave the way for Christianity, as well as led to this rise of Western physical education and sport in modern China from 1840 to the 1920s.     

Biomedical Discourse on Women's Physical Education and Sport in France (1880–1922)

This article aims at studying the contradictions in scientific discourse on physical education for women in France from 1880 to 1922. In 1880 a law made gymnastics compulsory at school, and physical practices became a topic of public and scientific debate. 1922 is the date of the first medical congress on women's and children's physical education. Our study is based on a corpus of more than 200 scholarly texts about physical education or sport. They discuss women, exclusively conceived in their biological functions as procreators, thus physiologically qualifying the socially constructed properties of femininity. However, as soon as the first steps towards female physical practices appeared, contradictions came up. On the one hand, some doctors wanted to preserve reproductive organs from any violent exercises. On the other hand, other doctors wanted to reinforce female bodies through sport practices.     

The Joinville School and the Institutionalization of a French-Style Physical Education, 1852–1939

Since the mid-nineteenth century, the Joinville School in France has worked to promote an innovative method of physical education, the French method, which was strongly marked by ideological and geopolitical challenges. Most of the French actors, whether they be military, doctors, scientists, or teachers, fought to defend France on the move. Physical education and its scholastic responsibility thus represented an original means to serve the national community and to give the country the necessary influence it required on the political and cultural international scene. If during the Second Empire, the Joinville School participated in the development of the physical instruction of French troops, during the third Republic, this officers' training school expanded the promotion of its method for physical education in schools. Among the challenges of this strategy, the actors for French physical education were faced with the organization of a common national teaching method as additional support for the promotion of a method that bore the mark of an eclectic philosophy. Until World War II, the Joinville School was a center for innovation that would spread practical physical education throughout France and Europe.     

Food intake and appetite following school-based high-intensity interval training in 9–11-year-old children

Using a randomised cross-over design, free-living lunch intake and subjective appetite were examined in 10 children (9.8 ± 0.6 years) following high-intensity interval training (HIIT) versus a control sedentary (SED) period, within a school setting. The 22-min HIIT took place during a regular PE lesson and consisted of two rounds of 4 × 30 s sprints. Foods were offered at a regular school lunch immediately following HIIT and SED and were matched between conditions. All food was covertly weighed before and after the meal. Hunger, fullness and prospective consumption were reported immediately before and after HIIT/SED, using visual analogue scales. Heart rate was higher during HIIT than SED (159.3 ± 23.1 vs. 76.9 ± 2.2 bpm, P < 0.05). Lunch energy intake was not different (P = 0.52) following HIIT, compared to SED (2.06 ± 0.35 vs. 2.09 ± 0.29 MJ, respectively). There were no significant differences in macronutrient intake or subjective appetite (P > 0.05). Results suggest that HIIT can be implemented in a PE lesson immediately before lunch, without causing a compensatory increase in food consumption.     

Struggling with Science and Status: Physiotherapy – Including Radiology and Cancer Treatment – and Physical Education at the State University in Ghent,Belgium, 1906–1936

The establishment of new academic specialties is an intriguing research topic from a social history of science perspective. In this article we focus on the ‘scientific migration’ within the Higher Institute of Physical Education (HIPE) and the Faculty of Medicine at the State University in Ghent, Belgium. The HIPE was ‘attached’ to the Faculty of Medicine in 1908, a world first that led to an interesting triangular relationship between physical education, physiotherapy, and medicine. The physiatrists (physicians-physiotherapists) who were appointed at the HIPE had to struggle with inferior status with respect to their colleagues within the Faculty of Medicine itself. Territorial power struggles arose on several levels. In 1936, after the first generation of physicians-physiotherapists had retired, physiotherapy was integrated fully into the Faculty of Medicine, and radiology and cancer treatment – which had been considered subsectors of physiotherapy – became autonomous specialties. Physical education, however, retained its inferior academic status.     

Moulding Future Soldiers and Mothers of the Iranian Nation: Gender and Physical Education under Reza Shah, 1921–41

This article discusses the development of male and female physical education and scouting in early twentieth-century Iran and the construction of ideal gender images through the process of implementation. Utilizing articles from various Iranian periodicals, it argues that physical education constituted an important medium for the state and its new middle class supporters to convey two major messages, which internally circulated among themselves and reinforced their distinct class consciousness. While the press presented images of equality between moral, healthy, and productive boys and girls as civic partners in working to bring the Iranian nation back to prosperity, it also made sure by discrediting such counter images as masculine women and consumer women that Iranian girls would not deviate from proper motherhood. The paper also suggests that Iran's experience was influenced by developments in other parts of the world.     

Comparison of ActiGraph GT3X+ and Actical accelerometer data in 9–11-year-old Canadian children

Accelerometry is the gold standard for field-based physical activity assessment in children; however, the plethora of devices, data reduction procedures, and cut-points available limits comparability between studies. This study aimed to compare physical activity variables from the ActiGraph GT3X+ and Actical accelerometers in children under free-living conditions. A cross-sectional study of 379 children aged 9–11 years from Ottawa (Canada) was conducted. Children wore the ActiGraph GT3X+ and Actical accelerometers on the hip simultaneously for 7 consecutive days (24-h protocol). Moderate-to-vigorous (MVPA), vigorous (VPA), moderate (MPA), and light (LPA) physical activity, as well as sedentary time, (SED) were derived using established data reduction protocols. Excellent agreement between devices was observed for MVPA (ICC = 0.73–0.80), with fair to good agreement for MPA, LPA and SED, and poor agreement for VPA. Bland-Altman plots showed excellent agreement for MVPA, LPA, and SED, adequate agreement for MPA, and poor agreement for VPA. MVPA derived from the Actical was 11.7% lower than the ActiGraph GT3X+. The ActiGraph GT3X+ and Actical are comparable for measuring children’s MVPA. However, comparison between devices for VPA, MPA, LPA, and SED are highly dependent on data reduction procedures and cut-points, and should be interpreted with caution.     

Trends in International Research Presented Through the Research Consortium of the American Alliance for Health,Physical Education,Recreation and Dance (1965–2008)

The extent of international research on the Research Consortium's program between 1965 and 2008 was documented. A total of 9,132 abstracts were reviewed, and 657 (7.19%) had an international component. Inclusion of international research ranged from a low of 1.97% in 1983 to a high of 14.24% in 2007. There was a decrease in the amount of international research presented between 1965 and 1983, after which there was an increase through 2008. Most growth was from increased contributions coming from researchers in Southeast Asia. In terms of general research topics, eight areas increased over the 44-year history reviewed, and five areas decreased. Seven recommendations are advanced for expanding the place and role of international research within the Research Consortium.     

Cultural Exchange,Appropriation and Physical Culture: Strongman Eugen Sandow in Colonial India, 1904–1905

This paper examines the eight-month 1904–1905 Indian tour of world-renowned strongman and physical culture pioneer Eugen Sandow, which occurred as nationalism surged and Japan shockingly defeated Russia during the Russo-Japanese War. Using Sandow’s writings, numerous newspaper accounts and several fascinating Indian texts it penetrates beyond Sandow’s claims that he ‘learnt little’ in the subcontinent to explore processes of cultural exchange despite the power imbalances inherent in the colonial context. The paper provides details about Sandow’s itinerary, shows and reception in key cities such as Calcutta, Bombay and Madras between October 1904 and June 1905, when the strongman headed further east to the Straits Settlements and China, but it also reveals the voices of Indian physical culture practitioners, including wrestlers and pahlwans such as Ramamurti Naidu – the ‘Indian Sandow’ – who repeatedly challenged Sandow. The paper suggests that through the careful reading of a variety of sources it is even possible to glimpse moments of recognition and respect between Sandow and Indian strongmen or physical culturists. In Sandow’s case this was particularly apparent in his use of Indian knowledge to produce a new health product named ‘Sandow’s Concentrated Embrocation’ following his stay in India.     

What knowledge appears as valid in the subject of Physical Education and Health? A study of the subject on three levels in year 9 in Sweden

Background: Many studies have found that Physical Education and Health (PEH) is a popular subject among the majority of pupils. Still, there is an on-going discussion concerning the aim of PEH and what legitimises it as a school subject. It is difficult to identify what knowledge appears as legitimate within PEH, and this creates conflicts within the field.

Purpose: The main purpose of this study is to contribute to the on-going debate regarding the knowledge content and the identity problems described in PEH. The conceptual framework used is curriculum theory, inspired by Bernstein's and Lundgren's theoretical work on the social construction of knowledge and the relationship between the production and reproduction of curricular knowledge, further developed by Linde. The specific research questions are the following: (1) What knowledge appears as legitimate in the subject in Sweden on these three levels: In the syllabus, as viewed by teachers, and during the realisation of lessons? (2) What are the similarities and differences between these levels with regard to legitimate subject knowledge? (3) Can we understand the described identity problem in the subject with the help of what knowledge appears legitimate?

Research design and data collection: The data used originate from three empirical materials obtained in Sweden from 2003 to 2005: the syllabus valid for compulsory school (i.e. Lpo 94) at the time the interviews and observations took place, material from semi-structured interviews with six PEH teachers who teach year 9 in four different secondary schools, and information from 20 videotaped PEH lessons taught by the interviewed teachers.

Findings: The results indicate that one can distinguish two largely dissimilar objects of learning which differ most markedly between the field of formulation and the field of transformation and realisation. The content knowledge of the field of formulation is largely reformulated in the field of transformation, but no major change takes place from the field of transformation to the field of realisation. The ‘formulated object of learning’ primarily comprises functional physical exercise, conceptual development, and the understanding of health and lifestyles. The ‘realised object of learning’ consists of formalised sport and physical exercise, with a minor focus on conceptual development.

Conclusions: Since two largely different objects of learning emerge in the subject, consensus is low regarding what knowledge is considered legitimate; the knowledge domain on the primary field most likely differs between the two arenas. A main problem for PEH in trying to gain legitimacy is that there are many different actors in the primary field who are related to and have interest in the subject and the knowledge basis of the subject derives from several different academic disciplines and from non-academic ones.