João Martins

Dr. João Martins

Laboratório de Pedagogia, Faculdade de Motricidade Humana e UIDEF, Instituto de Educação, Universidade de Lisboa, Lisboa, Portugal
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Research Focus & Metrics

Academic Career Length

17Years (2010-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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31 August 2015 in Health Education Research
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Journal Article
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JMJoão Martins
João Martins
Adilson MarquesAdilson Marques
Adilson Marques
Hugo SarmentoHugo Sarmento
Hugo Sarmento
FCFrancisco Carreiro da Costa
Francisco Carreiro da Costa
This article examined qualitative studies of adolescents’ perspectives about the facilitators and barriers of physical activity, published from 2007 to 2014. A systematic review of ‘Web of Science’, ‘EBSCO’, ‘Psychinfo’ and ‘ERIC’ databases was performed according to Preferred Reporting Items for Systematic reviews and Meta-analyses guidelines. The following keywords were used: ‘physical activity’ and ‘physical education’, each one individually associated with ‘correlate’, ‘determinant’, ‘facilitator’, ‘barrier’, ‘factor influen*’, and with ‘qualitative’, ‘focus group’, ‘interview’, “narrative’. Out of 3815 studies initially identified, due to inclusion and quality criteria, only 12 were fully reviewed. Studies’ outcomes were analyzed through thematic analysis. The majority of these reported research with young adolescent girls. Few studies have considered the socioeconomic status influence. According to young people’s perspectives, the main facilitators and hampering factors to their participation in physical activity were the following: attitude toward physical activity; motivation; perceptions of competence and body image; fun; influence of friends, family and physical education teachers and environmental physical activity opportunities. Specific life transition periods were referred only as a barrier to physical activity. Strategies of pedagogical actions and for developing physical activity intervention programs were discussed, in order to effectively promote the adoption of active lifestyles among youth.

JMJoão Martins
João Martins
Joao CostaJoao Costa
Joao Costa
Hugo SarmentoHugo Sarmento
Hugo Sarmento
Adilson MarquesAdilson Marques
Adilson Marques
Claudio FariasClaudio Farias
Claudio Farias
MVMiguel Valeiro
Miguel Valeiro
Listening to adolescents’ voices has been important to promote meaningful physical activity (PA) opportunities. Therefore, an updated systematic review of the available qualitative literature on adolescents’ perspectives on the barriers and facilitators of PA was conducted, according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Studies published between 2014 (date of the last systematic review) and 2020 were searched in the Web of Science, EBSCO, and SCOPUS databases. Based on the inclusion criteria applied, 30 out of 8069 studies were included in the review. A thematic analysis was used to inductively and deductively analyze the perspectives of ~1250 adolescents (13–18 years). The studies took place in 13 countries from different continents. The main PA barriers and facilitators of PA were presented and discussed around five higher-order themes: (1) Individual factors (e.g., psychological—motivation, self—efficacy; cognitive—knowledge, understanding; physical—motor skills); (2) social and relational factors (family, friends, significant others); (3) PA nature factors (fun, school-based PA and physical education); (4) life factors (time and competing activities; life-course); and (5) sociocultural and environmental factors (e.g., availability/access to PA facilities, programs; urban/rural zones). By transnationally framing adolescents’ voices, this study provides updated evidence and discusses innovative implications for developing tailored interventions and pedagogical strategies aimed at promoting active and healthy lifestyles.

23 March 2018 in Scandinavian Journal of Public Health
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Open access
Miguel PeraltaMiguel Peralta
Miguel Peralta
MRMadalena Ramos
Madalena Ramos
Anna LipertAnna Lipert
Anna Lipert
JMJoão Martins
João Martins
Adilson MarquesAdilson Marques
Adilson Marques
Aims: Overweight and obesity are clinical public-health concerns worldwide. Amongst older adults, the prevalence of overweight and obesity is considered high. The purpose of this study was to provide current data regarding the prevalence and trends of overweight and obesity of adults from 2005 to 2013 in 10 European countries. Methods: The data used in the present study were derived from the first, second, fourth and fifth waves of the Survey of Health, Ageing and Retirement in Europe. The present study includes individuals aged ⩾50 years from 10 European countries. Body mass index (BMI) was calculated from self-reported height and weight (kg/m2). Results: The general prevalence of overweight (BMI ⩾25 kg/m2) was slightly above 60% and remained stable between 2005 (60.1%, 95% confidence interval (CI): 59.3–60.9%) and 2013 (60.3%, 95% CI: 59.7–60.9%). On the other hand, the prevalence of obesity (BMI ⩾30 kg/m2) increased significantly (1.6 points, 95% CI: 0.7–2.6) from 17.5% in 2005 to 19.2% in 2013. Although the prevalence of obesity increased in most countries, the only significant increase was observed in Germany (5.8 points, 95% CI: 1.8–9.9). Spain was the only country where the prevalence of obesity decreased significantly (−4.7 points, 95% CI: −8.8 to −0.5). Sex and age differences are reported. Conclusions: Although the prevalence of overweight was stable, the prevalence of obesity rose. Based on the data currently available for Europe, the prevalence of obesity in European older adults has already reached epidemic proportions, which reinforces the need for the development of effective healthy lifestyle programs.

7 August 2020 in European Journal of Teacher Education
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Journal Article
Closed access
Wesley O'BrienWesley O'Brien
Wesley O'Brien
MAManolis Adamakis
Manolis Adamakis
NBNiamh O' Brien
Niamh O' Brien
MOMarcos Onofre
Marcos Onofre
JMJoão Martins
João Martins
Joao CostaJoao Costa
Joao Costa
The present study, using a sample of Physical Education Teacher Education (PETE) representatives from five Higher Education European institutions (England, Finland, Greece, Ireland, and Portugal) sought to investigate the proposed measures of change required for programme delivery during the academic year of 2020–21. Each team completed a SWOT (strengths, weaknesses, opportunities and threats) examination through inductive cross-analysis, using a deductive structure, following the dimensions of: PETE Programme; PETE Staff; PETE Students. The findings presented at a case level show how each PETE programme is seeking to manage an important tension between the experiential nature of Physical Education (PE) as a subject, in light of the institutional and external constraints towards online and blended approaches. Having identified the thematic variables for PETE at an overall programme, staff and student level, the SWOT analysis heightened PETE pedagogue understanding of the subject beyond ‘physical’ contact spaces, for meaningful third-level teacher education delivery.

Adilson MarquesAdilson Marques
Adilson Marques
Duarte Henriques-NetoDuarte Henriques-Neto
Duarte Henriques-Neto
Miguel PeraltaMiguel Peralta
Miguel Peralta
JMJoão Martins
João Martins
YDYolanda Demetriou
Yolanda Demetriou
MMMargarida Gaspar de Matos
Margarida Gaspar de Matos
Introduction: Physical activity (PA) is a beneficial health behaviour, however most adolescents worldwide are physically inactive. Updated information on the prevalence and trends of PA is important to inform national and international authorities and support countries’ public health policies and actions. This study aimed to present the worldwide, regional, and national prevalence of PA participation according to its frequency in adolescents. Methods: This study is based on cross-sectional surveys of adolescents’ populations from several countries and all regions worldwide. The sample comprised 520,533 adolescents (251,788 boys; 268,745 girls), from 105 countries and regions. Results: Most adolescents engaged in PA up to 3 days/week (57.1%; 95% CI: 56.9; 57.2). The prevalence of engaging in PA every day decreases over the age from 28.2% at age of 11–12 years (95% CI: 27.4; 29.0) to 21.2% at age of 16–17 years (95% CI: 20.3; 22.0) among boys; and from 19.4% (95% CI: 18.5; 20.2) to 11.1% (95% CI: 10.1; 12.0) among girls. For boys and girls who engaged in PA 5-6 days/week, the prevalence increases from countries with the lowest human development index to countries with the highest. Cambodia (7.3%, 95% CI: 3.8; 10.8), Philippines (7.7%, 95% CI: 5.6; 9.7), Sudan (8.8%, 95% CI: 4.7; 12.9), Timor-Leste (8.9%, 95% CI: 5.5; 12.3), and Afghanistan (10.1%, 95% CI: 6.1; 14.1) were the countries with the lowest prevalence of sufficient PA. Conclusions: National, regional, and worldwide data on the prevalence of physical activity in adolescents highlights the importance of improving the global levels of PA, especially in girls. Identifying the factors causing the age-related decrease in physical activity levels will permit public health entities to define priority actions and policies against physical inactivity.