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Dr Duncan Radley

Reader

Duncan has been involved in obesity research since the commencement of community-based child weight management interventions in the UK in 1999. He has unique experience in the field having held former appointments as Research Manager for two of the UK’s leading weight management service providers (MoreLife and MEND).

Duncan completed his PhD examining the cross-sectional and longitudinal validity of body composition measurement techniques in overweight and obese adolescents in 2008, having previously gained a First Class BSc (Hons) in Sport and Exercise Science.

Duncan’s published work and continued research interests focus on community-based interventions, body composition methodologies, dietary manipulation, appetite, obesity prevalence and the obesogenic environment.

Research Interests

Duncan is currently working on a range of research projects, including:

Methods to monitor location and food/physical activity behaviours.
The association between obesity, food exposure and consumption.
The association between obesity, green space and physical activity.
Community-based weight management.
Physical activity and academic achievement.

Carnegie School of Sport

Selected Outputs

Griffiths C; Radley D; Gately P; South J; Sanders G; Morris M; Clare K; martin A; Heppenstall A; McCann M (In press) A complex systems approach to obesity: A transdisciplinary framework for action. Perspectives in public health, pp. 1-5.

https://doi.org/10.1177/1757913923118076
Drew KJ; Homer C; Radley D; Jones S; Freeman C; Bakhai C; Ells L (2024) Normalisation and equity of referral to the NHS Low Calorie Diet programme pilot; a qualitative evaluation of the experiences of health care staff. BMC Public Health, 24 pp. 1-12.

https://doi.org/10.1186/s12889-023-17526-2
Drew K; Homer C; Radley D; Freeman C; Kinsella K; Maynard M; Bakhai C; Ells L (2023) Equity and Local Health Systems – a qualitative evaluation of the experiences of Local Health Service Leads during the first two years of the NHS Low Calorie Diet Programme pilot. The British Journal of Diabetes, 23 (2), pp. 77-12.

https://doi.org/10.15277/bjd.2023.416
Radley D; Homer C (2023) Editorial. Perspectives in Public Health, 143 (6), pp. 5-21.

https://doi.org/10.1177/17579139231214436
Evans T; Drew K; McKenna J; Dhir P; Marwood J; Freeman C; Hill AJ; Newson L; Homer C; Matu J (2023) Can the delivery of behavioural support be improved in the NHS England Low‐Calorie Diet Programme? An observational study of behaviour change techniques. Diabetic Medicine

https://doi.org/10.1111/dme.15245
Evans TS; Dhir P; Radley D; Duarte C; Keyworth C; Homer C; Hill AJ; Hawkes R; Matu J; McKenna J (2022) Does the design of the NHS Low-Calorie Diet Programme have fidelity to the programme specification? A documentary review of service parameters and behaviour change content in a type 2 diabetes intervention. Diabetic Medicine, pp. 1-30.

https://doi.org/10.1111/dme.15022
Clare K; Ojo A; Teke J; Willis M; Akhtar G; Clegg B; Goddard C; Freeman C; Drew KJ; Radley D (2022) 'Valued and listened to': the collective experience of patient and public involvement in a national evaluation. Perspect Public Health, 142 (4), pp. 199-201.

https://doi.org/10.1177/17579139221103184
Evans T; Hawkes R; Keyworth C; Newson L; Radley D; Hill A; Matu J; Ells L (2022) How is the NHS Low-Calorie Diet Programme expected to produce behavioural change to support diabetes remission: An examination of underpinning theory. British Journal of Diabetes, 22 (1), pp. 20-29.

https://doi.org/10.15277/bjd.2022.341
Nobles JD; Radley D; Mytton OT (2021) The Action Scales Model: A conceptual tool to identify key points for action within complex adaptive systems. Perspectives in Public Health, pp. 175791392110067-175791392110067.

https://doi.org/10.1177/17579139211006747
Hobbs M; Radley D (2020) Obesogenic environments and obesity : a comment on ‘Are environmental area characteristics at birth associated with overweight and obesity in school-aged children? Findings from the SLOPE (Studying Lifecourse Obesity PrEdictors) population-based cohort in the south of England’. BMC Medicine, 18 (1),

https://doi.org/10.1186/s12916-020-01538-5
Nobles J; Christensen A; Butler M; Radley D; Pickering K; Saunders J; Weir C; Sahota P; Gately P (2019) Understanding how local authorities in England address obesity: A wider determinants of health perspective. Health Policy, 123 (10), pp. 998-1003.

https://doi.org/10.1016/j.healthpol.2019.07.016
Wilkins EL; Morris M; Radley D; Griffiths C (2019) Methods of measuring associations between the Retail Food Environment and weight status: importance of classifications and metrics. SSM - Population Health

https://doi.org/10.1016/j.ssmph.2019.100404
Wilkins EL; Radley D; Morris M; Hobbs M; Christensen A; Lameck Marwa W; Morrin A; Griffiths C (2019) A systematic review employing the GeoFERN framework to examine methods, reporting quality and associations between the Retail Food Environment and obesity. Health and Place, 57 pp. 186-199.

https://doi.org/10.1016/j.healthplace.2019.02.007
Bagnall A; Radley D; Jones R; Gately P; Nobles J; Van Dijk M; Blackshaw J; Montel S; Sahota P (2019) Whole systems approaches to obesity and other complex public health challenges: a systematic review. BMC Public Health, 19 (8),

https://doi.org/10.1186/s12889-018-6274-z
Sacher PM; Kolotourou M; Poupakis S; Chadwick P; Radley DI; Fagg J (2018) Addressing childhood obesity in low-income, ethnically diverse families: outcomes and peer effects of MEND 7–13 when delivered at scale in US communities. International Journal of Obesity, 43 pp. 91-102.

https://doi.org/10.1038/s41366-018-0158-2
Timmins K; Green M; Radley DI; Morris M; Pearce J (2018) How has big data contributed to obesity research? A review of the literature. International Journal of Obesity, 42 pp. 1951-1962.

https://doi.org/10.1038/s41366-018-0153-7
Green M; Radley D; Lomax N; Morris M; Griffiths C (2018) Is adolescent body mass index and waist circumference associated with the food environments surrounding schools and homes? A longitudinal analysis. BMC Public Health

https://doi.org/10.1186/s12889-018-5383-z
Wilkins EL; Radley D; Morris M; Griffiths C (2017) Examining the validity and utility of two secondary sources of food environment data against street audits in England. Nutrition Journal

https://doi.org/10.1186/s12937-017-0302-1
Wilkins EL; Morris MA; Radley D; Griffiths C (2017) Using Geographic Information Systems to measure retail food environments: discussion of methodological considerations and a proposed reporting checklist (Geo-FERN). Health and Place, 44 pp. 110-117.

https://doi.org/10.1016/j.healthplace.2017.01.008
Nobles J; Radley D; Dimitri P; Sharman K (2016) Psychosocial Interventions in the Treatment of Severe Adolescent Obesity: The SHINE Program. Journal of Adolescent Health, 59 (5), pp. 523-529.

https://doi.org/10.1016/j.jadohealth.2016.06.014
Fagg J; Cole TJ; Cummins S; Goldstein H; Morris S; Radley D; Sacher P; Law C (2015) After the RCT: who comes to a family-based intervention for childhood overweight or obesity when it is implemented at scale in the community?. Journal of epidemiology and community health, 69 (2), pp. 142-148.

https://doi.org/10.1136/jech-2014-204155
Kolotourou M; Radley D; Gammon C; Smith L; Chadwick P; Sacher PM (2015) Long-Term Outcomes following the MEND 7-13 Child Weight Management Program. Childhood obesity (Print), 11 (3), pp. 325-330.

https://doi.org/10.1089/chi.2014.0092
Fagg J; Chadwick P; Cole TJ; Cummins S; Goldstein H; Lewis H; Morris S; Radley D; Sacher P; Law C (2014) From trial to population: a study of a family-based community intervention for childhood overweight implemented at scale. International journal of obesity (2005), 38 (10), pp. 1343-1349.

https://doi.org/10.1038/ijo.2014.103
Griffiths C; Frearson A; Taylor A; Radley D; Cooke CB (2014) A cross sectional study investigating the association between exposure to food outlets and childhood obesity in Leeds, UK. International Journal of Behavioral Nutrition and Physical Activity, 11 pp. 138-?.

https://doi.org/10.1186/s12966-014-0138-4
Kolotourou M; Radley D; Chadwick P; Smith L; Orfanos S; Kapetanakis V; Singhal A; Cole TJ; Sacher PM (2013) Is BMI alone a sufficient outcome to evaluate interventions for child obesity?. Childhood obesity (Print), 9 (4), pp. 350-356.

https://doi.org/10.1089/chi.2013.0019
Smith LR; Chadwick P; Radley D; Kolotourou M; Gammon CS; Rosborough J; Sacher PM (2013) Assessing the short-term outcomes of a community-based intervention for overweight and obese children: The MEND 5-7 programme. BMJ Open, 3 (5),

https://doi.org/10.1136/bmjopen-2013-002607
Daly-Smith AJW; McKenna J; Radley D; Long J (2011) The impact of additional weekdays of active commuting to school on children achieving a criterion of 300+minutes of moderate-to-vigorous physical activity. Health Education Journal, 70 (4), pp. 428-434.

https://doi.org/10.1177/0017896910379367
Radley D; Cooke CB; Fuller NJ; Oldroyd B; Truscott JG; Coward WA; Wright A; Gately PJ (2009) Validity of foot-to-foot bio-electrical impedance analysis body composition estimates in overweight and obese children. International Journal of Body Composition Research, 7 (1), pp. 15-20.
Duckworth LC; Gately PJ; Radley D; Cooke CB; King RFGJ; Hill A (2009) RCT of a high-protein diet on hunger, motivation and weight-loss in obese children: An extension and replication. Obesity, 17 pp. 1808-1810.

https://doi.org/10.1038/oby.2009.95
King RFGJ; Hobkirk JP; Cooke CB; Radley D; Gately PJ (2008) Low-density lipoprotein sub-fraction profiles in obese children before and after attending a residential weight loss intervention. Journal of Atherosclerosis and Thrombosis, 15 (2), pp. 100-107.

https://doi.org/10.5551/jat.E490
Cullingworth J; Biglands JD; Truscott JG; Ridgway JP; Radley D (2008) Reproducibility of volumetric adipose tissue measurements using magnetic resonance imaging. International Journal of Body Composition Research, 6 (1), pp. 35-42.
Gately P; King N; Greatwood H; Humprey L; Radley D; Cooke CB; Hill AJ (2007) Does a High-protein Diet Improve Weight Loss in Overweight and Obese Children?. Obesity, 15 pp. 1527-1534.
Radley D; Fields DA; Gately PJ (2007) Validity of thoracic gas volume equations in children of varying body mass index classifications. International Journal of Pediatric Obesity, 2 (3), pp. 180-187.

https://doi.org/10.1080/17477160701191710
Hull HR; Radley D; Dinger MK; Fields DA (2006) The effect of the Thanksgiving Holiday on weight gain. Nutrition Journal, 5 (1),

https://doi.org/10.1186/1475-2891-5-29
Radley D; Fields DA (2006) Need for optimal body composition data analysis using air-displacement plethysmography in children and adolescents [1]. Journal of Nutrition, 136 (3), pp. 709-709.
Fields DA; Higgins PB; Radley D (2005) Air-displacement plethysmography: here to stay. Current Opinion in Clinical Nutrition & Metabolic Care, 8 (6), pp. 624-629.

https://doi.org/10.1097/01.mco.0000171127.44525.07
Gately PJ; Cooke CB; Barth JH; Bewick BM; Radley D; Hill AJ (2005) Children's residential weight-loss programs can work: a prospective cohort study of short-term outcomes for overweight and obese children. Pediatrics, 116 (1), pp. 73-77.

https://doi.org/10.1542/peds.2004-0397
Radley D; Gately PJ; Cooke CB; Carroll S; Oldroyd B; Truscott JG (2005) Percentage Fat in Overweight and Obese Children: Comparison of DXA and Air Displacement Plethysmography<sup>**</sup>. Obesity Research, 13 (1), pp. 75-85.

https://doi.org/10.1038/oby.2005.10
Radley D; Carroll S (2004) Validity of methods for measurement of body composition in boys. OBESITY RESEARCH, 12 (6), pp. 1034-1035.

https://doi.org/10.1038/oby.2004.128
Gately P; Radley D; Barth J; Cooke C (2004) Acute clinical outcomes of a residential weight-loss camp programme. International Journal of Obesity, 28 pp. S194-S194.
Radley D; Gately PJ; Cooke CB; Carroll S; Oldroyd B; Truscott JG (2003) Estimates of percentage body fat in young adolescents: a comparison of dual-energy X-ray absorptiometry and air displacement plethysmography. European Journal of Clinical Nutrition, 57 (11), pp. 1402-1410.

https://doi.org/10.1038/sj.ejcn.1601702
Gately PJ; Radley D; Cooke CB; Carroll S; Oldroyd B; Truscott JG; Coward WA; Wright A (2003) Comparison of body composition methods in overweight and obese children. Journal of Applied Physiology, 95 (5), pp. 2039-2046.

https://doi.org/10.1152/japplphysiol.00377.2003