The Impact of a 6 Week Walking Intervention on an Obese Population in Relation to Walking Distance, Waist to Height Ratio and Body Mass Index

Mills, Claire ORCID: 0000-0003-4156-4593 and Wellington, Harry (2020) The Impact of a 6 Week Walking Intervention on an Obese Population in Relation to Walking Distance, Waist to Height Ratio and Body Mass Index. Advances in Obesity, Weight Management and Control, 10 (6). pp. 181-189.

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Introduction: Obesity is a health condition, often resulting from an imbalance between physical activity and calorie intake and while invasive and intense interventions may be necessary for some obese individuals (OI), changes in activity and lifestyle over long periods of time are arguably the safest, most sustainable solution. High Intensity Interval Training (HIIT) has been widely observed to increase rapid fat oxidation in obese populations (OPs), it conversely increases health risks for OIs who often have limited cardiovascular fitness, increased joint loading and high blood pressure. However, submaximal aerobic exercise, such as walking, can be used as an initial intervention for OI who lead sedentary lifestyles, to reduce weight and increase aerobic capacity in an arguably safer way. Therefore, the aim of this study was to investigate the effect that a submaximal walking intervention has on anthropometric measures in an OP. Methods: The experiment had a within-group, longitudinal design with repeated measures on n = 6 participants aged 34-54 (M=50.3, SD=8.02, 66.7% female) who walked 30 minutes daily over a 6-week period. All participants were classified as obese at week one of the intervention period, and as such were required to have a body mass index (BMI) >30 and a waist to height ratio (WHR) of >0.58 or >0.54 for men and women, respectively. Anthropometric measurements recorded at weekly intervals throughout the intervention included BMI, WHR, Waist Circumference (WC) and body mass (BM). Results: A non-parametric Friedman Test was carried out using SPSS and a statistically significant difference in BM, BMI, WHR, WC was observed before and after the intervention (P<0.001). Post Hoc analyses using a Paired Samples t-Test confirmed the statistically significant effect of 30 minutes of daily walking on all measures over the 6-week period (p<0.05). Conclusion: Results found the prescribed 6-week walking intervention caused a significant reduction in BM, BMI, WHR and WC and an overall increase of distance walked by participants. Moreover, can be concluded that submaximal exercise can benefit OIs by reducing all areas explored whilst keeping the risk of a health implication to a lower level than HIIT.

Item Type: Article
Article Type: Article
Uncontrolled Keywords: Obesity; Intervention; Walking; Body mass index; Waist to height ratio
Subjects: Q Science > QP Physiology
Q Science > QP Physiology > QP301.H75 Physiology. Sport
R Medicine > RA Public aspects of medicine > RA0421 Public health. Hygiene. Preventive Medicine > RA645.O23 Body mass. Adult obesity
Divisions: Schools and Research Institutes > School of Education and Science
Research Priority Areas: Health, Life Sciences, Sport and Wellbeing
Depositing User: Claire Mills
Date Deposited: 17 Dec 2020 10:12
Last Modified: 31 Aug 2023 09:07

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