Relationship between volition, physical activity and weight loss maintenance: Study rationale, design, methods and baseline characteristics

TY - JOUR

T1 - Relationship between volition, physical activity and weight loss maintenance: Study rationale, design, methods and baseline characteristics

AU - Dandanell, Sune

AU - Elbe, Anne-Marie

AU - Pfister, Gertrud Ursula

AU - Elsborg, Peter

AU - Helge, Jørn Wulff

N1 - CURIS 2017 NEXS 034

PY - 2017/5/1

Y1 - 2017/5/1

N2 - Aims: To investigate the relationship between volition, physical activity and weight loss maintenance. Methods: We recruited 84 sedentary (maximal oxygen uptake: 25 ± 5 ml/min), overweight and obese (Body mass index (BMI) 38 ± 7 m/h2, fat 44 ± 7 %) women (n = 55) and men (n = 29) for an interdisciplinary prospective study with follow-up. The change in lifestyle and weight loss is promoted via a 3-month intensive lifestyle intervention at a private health school. The intervention consists of supervised training (1–3 hours/day), a healthy hypo-caloric diet (−500 to −700 kCal/day) and education in healthy lifestyle in classes/groups. The participants’ body weight and composition (Dual Energy X-ray absorptiometry), volitional skills (questionnaire), physical activity level (heart rate accelerometer / questionnaire) and maximal oxygen uptake (indirect calorimetry) are to be monitored before, after, and 3 and 12 months after the intervention. Results: At the 12-month followup, three different groups will be established: Clinical weight loss maintenance (> 10% weight loss from baseline), moderate weight loss maintenance (1–10% weight loss) and no weight loss (or weight regain). A linear mixed model analysis will be used to compare levels of volitional skills, physical activity and maximal oxygen uptake over time, between the three groups. Correlational analyses will be used to investigate possible associations between volition, maximal oxygen uptake, physical activity level and weight loss maintenance. Conclusions: If specific volitional skills are identified as predictors of adherence to physical activity and success in clinical weight loss maintenance, these can be trained in future intensive lifestyle interventions in order to optimize the success rate.

AB - Aims: To investigate the relationship between volition, physical activity and weight loss maintenance. Methods: We recruited 84 sedentary (maximal oxygen uptake: 25 ± 5 ml/min), overweight and obese (Body mass index (BMI) 38 ± 7 m/h2, fat 44 ± 7 %) women (n = 55) and men (n = 29) for an interdisciplinary prospective study with follow-up. The change in lifestyle and weight loss is promoted via a 3-month intensive lifestyle intervention at a private health school. The intervention consists of supervised training (1–3 hours/day), a healthy hypo-caloric diet (−500 to −700 kCal/day) and education in healthy lifestyle in classes/groups. The participants’ body weight and composition (Dual Energy X-ray absorptiometry), volitional skills (questionnaire), physical activity level (heart rate accelerometer / questionnaire) and maximal oxygen uptake (indirect calorimetry) are to be monitored before, after, and 3 and 12 months after the intervention. Results: At the 12-month followup, three different groups will be established: Clinical weight loss maintenance (> 10% weight loss from baseline), moderate weight loss maintenance (1–10% weight loss) and no weight loss (or weight regain). A linear mixed model analysis will be used to compare levels of volitional skills, physical activity and maximal oxygen uptake over time, between the three groups. Correlational analyses will be used to investigate possible associations between volition, maximal oxygen uptake, physical activity level and weight loss maintenance. Conclusions: If specific volitional skills are identified as predictors of adherence to physical activity and success in clinical weight loss maintenance, these can be trained in future intensive lifestyle interventions in order to optimize the success rate.

KW - Faculty of Science

KW - Adherence

KW - Exercise

KW - Interdisciplinary study

KW - Lifestyle interventions

KW - Obesity

KW - Oxygene uptake

KW - Physical activity

KW - Study design

KW - Success rate

KW - Volition

KW - Weight loss

KW - Weight maintenance

KW - Will

U2 - 10.1177/1403494816682378

DO - 10.1177/1403494816682378

M3 - Journal article

C2 - 28443489

SN - 1403-4948

VL - 45

SP - 299

EP - 304

JO - Acta socio-medica Scandinavica

JF - Acta socio-medica Scandinavica

IS - 3

ER -