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Impact of Calory Restriction and Biofeedback on Endocrine and Mental Health

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Medical University of Vienna

Status

Completed

Conditions

Mental Stress
Psychological
Obesity
Neuroendocrinology

Treatments

Behavioral: Calory Restriction (F.X. Mayr & VLCD)
Behavioral: Biofeedback

Study type

Interventional

Funder types

Other

Identifiers

NCT04848948
2020-GI-01

Details and patient eligibility

About

Backgroup/relevance: Overweight and obesity, defined by a respective body mass index of above 25 and 30 kg/m2, are getting increasingly common in all regions of the world. Obesity is currently estimated to be present in more than 10% of the global population while overweight roughly reached an estimate of 40% in 2016.

Overweight dramatically increases the risk for a wide range of disorders such as diabetes mellitus and other metabolic and cardiovascular disorders subsumed under the term metabolic syndrome, increasing the risk for life-threatening cardiovascular events such as myocardial infarction and stroke. Similar to other chronic diseases such as mental health disorders, prescribing medication was oftentimes insufficient and should be complemented by patient empowerment to reach sufficient treatment adherence and control of lifestyle factors. Thereby, overweight and obesity can easily be challenged by patients themselves without pharmacological intervention.

Overweight may place central in the crossroad between metabolic and mental health for several reasons. Excessive body fat is known to cause subclinical inflammation that was also associated with many psychiatric disorders such as major depression. Similarly, the hypothalamic-pituitary-adrenal axis relevant for stress response was shown to be dysregulated in both metabolic and mental health disorders.

Study design: In this study, non-pharmacological interventions are applied in healthy women with overweight or obesity and self-perceived psychological stress. Women staying at the "la pura" women´s health resort (www.lapura.at/) are invited to partake in the study and receive a short-term intervention of calory restriction. Thereby, either F.X. Mayr or very-low-calory-diet (VLCD) will be applied, reducing calory intake to 700-800 kcal/die. Following random assigment to four treatment arms, half of the women also receive a 7-session clinical-psychological intervention consisting of biofeedback, individualized psycho-education on stress prevention and mindlessness training.

Women are assessed at baseline and after two weeks of interventions for metabolic parameters such as insulin functioning, anthropometric parameters such as body weight and body fat, blood parameters such as sex hormones, fat metabolism and liver function, parameters of neuroplasticity such as brain derived neurotrophic factor (BDNF), as well as psychological and biological stress correlates and mental health symptom dimensions.

Enrollment

44 patients

Sex

Female

Ages

18+ years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  • women willing to undergo two-weeks of calory restriction
  • at least 18 years of age

Exclusion criteria

  • currently pregnant
  • any acute or a severe chronic illness

Trial design

Primary purpose

Prevention

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

None (Open label)

44 participants in 4 patient groups

F.X.Mayr & Biofeedback
Experimental group
Description:
two weeks of F.X. Mayr diet and biofeedback
Treatment:
Behavioral: Biofeedback
Behavioral: Calory Restriction (F.X. Mayr & VLCD)
F.X.Mayr
Active Comparator group
Description:
two weeks of F.X. Mayr diet
Treatment:
Behavioral: Calory Restriction (F.X. Mayr & VLCD)
VLCD & Biofeedback
Experimental group
Description:
two weeks of very low calorie diet and biofeedback
Treatment:
Behavioral: Biofeedback
Behavioral: Calory Restriction (F.X. Mayr & VLCD)
VLCD
Active Comparator group
Description:
two weeks of very low calorie diet
Treatment:
Behavioral: Calory Restriction (F.X. Mayr & VLCD)

Trial contacts and locations

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Data sourced from clinicaltrials.gov

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