JU:MP leads: sparking physical activity leadership and supporting positive youth development in a deprived community.

Introduction: Physical activity interventions in deprived communities should acknowledge the social, political, and cultural context in which they are delivered. Targeted young leaders programs can harness positive youth development principles and address these concerns by engaging underrepresented young people and developing them as physical activity leaders who can support local delivery efforts. Community-based Youth Leadership development programs are under-researched, and little is known about how to develop young people from deprived communities as physical activity leaders.

Reflections on co-producing an obesity-prevention toolkit for Islamic Religious Settings: a qualitative process evaluation.

Background: Islamic leaders, staff, and Muslim parents in the UK are supportive of healthy lifestyle intervention delivery through Islamic Religious Settings. Such interventions are necessary given high obesity rates in British South Asian (40%) compared to White British (32%) children of equivalent age. Co-production can facilitate the development of culturally appropriate health interventions, however it can be theoretically and practically challenging, and evaluation of co-production within an Islamic Religious Setting context is lacking.

Born in Bradford's Age of Wonder cohort: protocol for adolescent data collection.

Background: Adolescence and transition into adulthood are periods shaping life-long mental health, cardiometabolic risk, and inequalities. However, they are poorly studied and understood. By extending and expanding the Born in Bradford (BiB) cohort study through this period using innovative, co-produced approaches to collect and analyse data, we aim to understand better the interplay of factors that influence health and wellbeing, and inform/evaluate interventions to improve them and reduce inequalities.

How to develop young physical activity leaders? A Delphi study.

The International Society for Physical Activity and Health advocates for increased capability of the physical activity workforce as a key ingredient to a system-based approach. Young leader programmes are gaining traction globally as peers are a primary influence on young people and positive role models are important for increasing or maintaining physical activity. Yet, there is limited understanding of 'what works' for training young physical activity leaders.

Born in Bradford Age of Wonder cohort: A protocol for qualitative longitudinal research.

Bradford is multi-ethnic and one of the most deprived districts in the United Kingdom where around a quarter of children live in low-income families. Born in Bradford (BiB) has followed the lives of 13,776 children born in the district between 2007 and 2011. Children in the birth cohort are now entering adolescence, and the next phase of the research - Age of Wonder (AoW) - will be a whole city cohort capturing the experiences of 30,000 adolescents progressing into young adulthood.

A whole system approach to increasing children's physical activity in a multi-ethnic UK city: a process evaluation protocol.

Background: Engaging in regular physical activity requires continued complex decision-making in varied and dynamic individual, social and structural contexts. Widespread shortfalls of physical activity interventions suggests the complex underlying mechanisms of change are not yet fully understood. More insightful process evaluations are needed to design and implement more effective approaches.

Fine-scale population structure and demographic history of British Pakistanis.

Previous genetic and public health research in the Pakistani population has focused on the role of consanguinity in increasing recessive disease risk, but little is known about its recent population history or the effects of endogamy. Here, we investigate fine-scale population structure, history and consanguinity patterns using genotype chip data from 2,200 British Pakistanis. We reveal strong recent population structure driven by the biraderi social stratification system.

Covid-19 lockdown: Ethnic differences in children's self-reported physical activity and the importance of leaving the home environment; a longitudinal and cross-sectional study from the Born in Bradford birth cohort study.

Background: In England, the onset of COVID-19 and a rapidly increasing infection rate resulted in a lockdown (March-June 2020) which placed strict restrictions on movement of the public, including children. Using data collected from children living in a multi-ethnic city with high levels of deprivation, this study aimed to: (1) report children's self-reported physical activity (PA) during the first COVID-19 UK lockdown and identify associated factors; (2) examine changes of children's self-reported PA prior to and during the first UK lockdown.

Methods: This study is part of the Born in Bradford (BiB) COVID-19 Research Study.

Delivering a childhood obesity prevention intervention using Islamic religious settings in the UK: What is most important to the stakeholders?

Ten per cent of the childhood population in the UK are of South Asian (SA) origin. Within this population, over 40% are living with overweight or obesity. The majority of SA children are Muslim and attend Islamic religious settings (IRS) daily after school.

Objectively-measured sedentary time and physical activity in a bi-ethnic sample of young children: variation by socio-demographic, temporal and perinatal factors.

Background: Evidence suggests that South Asian school-aged children and adults are less active compared to the white British population. It is unknown if this generalises to young children. We aimed to describe variability in levels of physical activity and sedentary time in a bi-ethnic sample of young children from a deprived location.

A scoping review and systematic mapping of health promotion interventions associated with obesity in Islamic religious settings in the UK.

Islamic religious settings (IRS) may be useful places to implement obesity interventions for Muslims. However, little is known about the level and nature of such activity in these settings. We searched bibliographic databases and grey literature, and requested grey information from Muslim organizations, local councils, and mosques in 13 selected areas in the United Kingdom.