Consequences of Human Inactivity
Primary Purpose
Inactivity, Obesity, Type 2 Diabetes
Status
Completed
Phase
Not Applicable
Locations
Denmark
Study Type
Interventional
Intervention
female inactivity and hypercaloric diet
inactivity
inactivity and hypercaloric diet
normal activity and hypercaloric diet
inactivity and iso-caloric diet
Sponsored by

About this trial
This is an interventional prevention trial for Inactivity focused on measuring Inactivity, Obesity, Type 2 diabetes, glucose metabolism, Lipid metabolism, Cognitive function
Eligibility Criteria
Inclusion Criteria:
- Normal physical active
- Healthy
- 18-40 y of age
- Non-smokers
Exclusion Criteria:
- Pregnancy
- Diabetes in family
Sites / Locations
- Center og inflammation and metabolism, Rigshospitalet
Arms of the Study
Arm 1
Arm 2
Arm 3
Arm 4
Arm 5
Arm Type
Experimental
Experimental
Experimental
Experimental
Active Comparator
Arm Label
female inactivity and hypercaloric diet
inactivity
inactivity and hypercaloric diet
normal activity and hypercaloric diet
inactivity and iso-caloric diet
Arm Description
inactivity and hypercaloric diet in women for two weeks
Inactivity for two weeks
inactivity and hypercaloric diet for two weeks
Normal activity and hypercaloric diet for two weeks
inactivity and iso-caloric diet for two weeks
Outcomes
Primary Outcome Measures
Insulin sensitivity
Area under the curve of plasma glucose and insulin levels during an oral glucose tolerance test
Secondary Outcome Measures
visceral adiposity
Amount of visceral fat is determined by MRI scans
Full Information
1. Study Identification
Unique Protocol Identification Number
NCT01828229
Brief Title
Consequences of Human Inactivity
Official Title
Consequences of Human Inactivity
Study Type
Interventional
2. Study Status
Record Verification Date
June 2015
Overall Recruitment Status
Completed
Study Start Date
January 2009 (undefined)
Primary Completion Date
June 2015 (Actual)
Study Completion Date
June 2015 (Actual)
3. Sponsor/Collaborators
Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
Rigshospitalet, Denmark
4. Oversight
Data Monitoring Committee
Yes
5. Study Description
Brief Summary
Epidemiological studies as well as both longitudinal animal and human inactivity studies indicate that low physical activity is associated with the pathophysiology of type 2 diabetes mellitus (T2DM) and obesity, and recently it has been estimated that physical inactivity (worldwide) causes 7% of the burden of disease related to e.g. T2DM. Physical inactivity, a high energy dietary intake, and T2DM are also associated with dementia, depression, and impaired cognitive function. It is critical that we understand how inactivity alters body composition, glucose and lipid metabolism, and cognitive function, if normal physical activity can prevent these changes, and if there are any differences between sexes.
The present protocol is divided in several in several sub-studies:
To test whether and how a physically inactive lifestyle will influence body composition, glucose and lipid metabolism, and cognitive function.
To test whether normal physical activity can prevent the deleterious effect of a physically inactive lifestyle despite a high-caloric intake.
To test whether the influence of a physically inactive lifestyle combined with a high-caloric intake differs between sexes.
6. Conditions and Keywords
Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Inactivity, Obesity, Type 2 Diabetes
Keywords
Inactivity, Obesity, Type 2 diabetes, glucose metabolism, Lipid metabolism, Cognitive function
7. Study Design
Primary Purpose
Prevention
Study Phase
Not Applicable
Interventional Study Model
Parallel Assignment
Masking
Outcomes Assessor
Allocation
Randomized
Enrollment
50 (Anticipated)
8. Arms, Groups, and Interventions
Arm Title
female inactivity and hypercaloric diet
Arm Type
Experimental
Arm Description
inactivity and hypercaloric diet in women for two weeks
Arm Title
inactivity
Arm Type
Experimental
Arm Description
Inactivity for two weeks
Arm Title
inactivity and hypercaloric diet
Arm Type
Experimental
Arm Description
inactivity and hypercaloric diet for two weeks
Arm Title
normal activity and hypercaloric diet
Arm Type
Experimental
Arm Description
Normal activity and hypercaloric diet for two weeks
Arm Title
inactivity and iso-caloric diet
Arm Type
Active Comparator
Arm Description
inactivity and iso-caloric diet for two weeks
Intervention Type
Behavioral
Intervention Name(s)
female inactivity and hypercaloric diet
Intervention Description
female inactivity and hypercaloric diet for 2 weeks
Intervention Type
Behavioral
Intervention Name(s)
inactivity
Intervention Description
inactivity for 2 weeks
Intervention Type
Behavioral
Intervention Name(s)
inactivity and hypercaloric diet
Intervention Description
inactivity and hypercaloric diet for 2 weeks
Intervention Type
Behavioral
Intervention Name(s)
normal activity and hypercaloric diet
Intervention Description
normal activity and hypercaloric diet for 2 weeks
Intervention Type
Behavioral
Intervention Name(s)
inactivity and iso-caloric diet
Intervention Description
inactivity and iso-caloric diet for 2 weeks
Primary Outcome Measure Information:
Title
Insulin sensitivity
Description
Area under the curve of plasma glucose and insulin levels during an oral glucose tolerance test
Time Frame
2 weeks
Secondary Outcome Measure Information:
Title
visceral adiposity
Description
Amount of visceral fat is determined by MRI scans
Time Frame
2 weeks
Other Pre-specified Outcome Measures:
Title
Cognitive function
Description
Assessed by the Conner's Continuous Performance Test II 2000
Time Frame
2 weeks
Title
aerobic fitness
Description
maximal oxygen uptake (VO2max) was measured during an incremental exercise test performed on a cycle ergometer
Time Frame
2 weeks
10. Eligibility
Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
40 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria:
Normal physical active
Healthy
18-40 y of age
Non-smokers
Exclusion Criteria:
Pregnancy
Diabetes in family
Facility Information:
Facility Name
Center og inflammation and metabolism, Rigshospitalet
City
Copenhagen
Country
Denmark
12. IPD Sharing Statement
Citations:
PubMed Identifier
18349087
Citation
Olsen RH, Krogh-Madsen R, Thomsen C, Booth FW, Pedersen BK. Metabolic responses to reduced daily steps in healthy nonexercising men. JAMA. 2008 Mar 19;299(11):1261-3. doi: 10.1001/jama.299.11.1259. No abstract available.
Results Reference
background
PubMed Identifier
20044474
Citation
Krogh-Madsen R, Thyfault JP, Broholm C, Mortensen OH, Olsen RH, Mounier R, Plomgaard P, van Hall G, Booth FW, Pedersen BK. A 2-wk reduction of ambulatory activity attenuates peripheral insulin sensitivity. J Appl Physiol (1985). 2010 May;108(5):1034-40. doi: 10.1152/japplphysiol.00977.2009. Epub 2009 Dec 31. Erratum In: J Appl Physiol. 2010 May;108(5):1034.
Results Reference
result
PubMed Identifier
22556394
Citation
Knudsen SH, Hansen LS, Pedersen M, Dejgaard T, Hansen J, Hall GV, Thomsen C, Solomon TP, Pedersen BK, Krogh-Madsen R. Changes in insulin sensitivity precede changes in body composition during 14 days of step reduction combined with overfeeding in healthy young men. J Appl Physiol (1985). 2012 Jul;113(1):7-15. doi: 10.1152/japplphysiol.00189.2011. Epub 2012 May 3. Erratum In: J Appl Physiol (1985). 2015 Feb 15;118(4):504.
Results Reference
result
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Consequences of Human Inactivity
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