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HyperglycemiaNCT02554669

Acute Effects of Postabsorptive and Postprandial Physical Activity

A study testing postprandial and postabsorptive physical activity on treadmill in people with Hyperglycemia and Inflammation, run by Inland Norway University of Applied Sciences.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Physical activity performed in the postprandial state has the ability to blunt postprandial glycemia acutely, even as a result of very light or small amounts of postprandial physical activity. Read more about this study

Who is it for?
Any age
Conditions the study is for
Hyperglycemia, Inflammation
What is being tested?
postprandial and postabsorptive physical activity on treadmill
Could I receive a placebo?
No, everyone receives an active treatment
How many people
12 participants
Where
No sites listed yet
Study dates
Jan 2013to Jun 2014
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Diagnosed with hyperglycemia

Who cannot join

  • Use of hypoglycemic agents or diseases directly affecting blood glucose, except of diabetes type 2 / insulin resistance

About this study

Official title: Acute Effects of Postabsorptive and Postprandial Physical Activity on Glycemia and Inflammation

Physical activity performed in the postprandial state has the ability to blunt postprandial glycemia acutely, even as a result of very light or small amounts of postprandial physical activity. Postprandial physical activity decreases postprandial glycemia more effectively than activity performed in the post-absorptive state. However, studies comparing postprandial and postabsorptive physical activity have measured glycemic outcomes in only short periods of time (hours) or have used a very large dose of physical activity.

Physical activity have the ability to entail an acute increase in markers of systemic inflammation.Previous studies has also shown that systemic inflammation is increased during glycemic spikes, such as after a high carbohydrate load. Therefore the effect of postprandial physical activity is difficult to predict. One one hand it might increase markers of systemic inflammation. On the other hand it might decrease systemic inflammation as a result of a blunting effect on postprandial glycemia. The effect of physical activity after carbohydrate intake might therefore also differ from postabsorptive physical activity.

Read more

Purpose of the study: I) The investigators hypothesized that light physical activity performed in the post-prandial sate decrease blood glucose in a day and night cycle compared to the same activity performed in the postabsorptive state and a control day. II) To test whether postabsorptive and postprandial light physical activity do affect markers of systemic inflammation different.

12 participants diagnosed with hyperglycemia but not on hypoglycemic medication took part in a randomized cross-over trial with 3 test days. A control day with no physical activity, and two days similar to the control day except that one of them contained a one hour bout of treadmill walking prior to breakfast and the other a similar exercise bout after breakfast. Continuous glucose monitoring was performed from start of exercise / breakfast until the morning next day (at least 22 hours). Venous blood was also sampled at given timepoints (before exercise / before breakfast, and 1.5, 2.5, 3.5 and 24 hours after breakfast. Dietary intake was individually standardized prior to and during test days.

Read the detailed description

Physical activity performed in the postprandial state has the ability to blunt postprandial glycemia acutely, even as a result of very light or small amounts of postprandial physical activity. Postprandial physical activity decreases postprandial glycemia more effectively than activity performed in the post-absorptive state. However, studies comparing postprandial and postabsorptive physical activity have measured glycemic outcomes in only short periods of time (hours) or have used a very large dose of physical activity.

Physical activity have the ability to entail an acute increase in markers of systemic inflammation.Previous studies has also shown that systemic inflammation is increased during glycemic spikes, such as after a high carbohydrate load. Therefore the effect of postprandial physical activity is difficult to predict. One one hand it might increase markers of systemic inflammation. On the other hand it might decrease systemic inflammation as a result of a blunting effect on postprandial glycemia. The effect of physical activity after carbohydrate intake might therefore also differ from postabsorptive physical activity.

Purpose of the study: I) The investigators hypothesized that light physical activity performed in the post-prandial sate decrease blood glucose in a day and night cycle compared to the same activity performed in the postabsorptive state and a control day. II) To test whether postabsorptive and postprandial light physical activity do affect markers of systemic inflammation different.

12 participants diagnosed with hyperglycemia but not on hypoglycemic medication took part in a randomized cross-over trial with 3 test days. A control day with no physical activity, and two days similar to the control day except that one of them contained a one hour bout of treadmill walking prior to breakfast and the other a similar exercise bout after breakfast. Continuous glucose monitoring was performed from start of exercise / breakfast until the morning next day (at least 22 hours). Venous blood was also sampled at given timepoints (before exercise / before breakfast, and 1.5, 2.5, 3.5 and 24 hours after breakfast. Dietary intake was individually standardized prior to and during test days.

Being tested
postprandial and postabsorptive physical activity on treadmill
Keywords
Blood glucose (indicated by interstitial glucose), Markers of systemic inflammation
Medical subject headings
Hyperglycemia, Inflammation

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • postprandial and postabsorptive physical activity on treadmillBehavioural

Study groups in NCT02554669
Study groupRoleWhat they receive
ControlNo interventionNo physical activity
Postabsorptive physical activityExperimentalPhysical activity performed before breakfast
Receives: Behavioral: postprandial and postabsorptive physical activity on treadmill
Postprandial physical activityExperimentalPhysical activity performed in the postprandial period after breakfast
Receives: Behavioral: postprandial and postabsorptive physical activity on treadmill

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in interstitial glucose from test day to test day

    Interstitial glucose, measured by continuous glucose monitoring

    Measured: Measured continuously on each test day, but a mean of every 5. minute during test day (from breakfast until 22 hours after breakfast) is stored and used for analysis (acute effect in a cross-over design).

  2. Change in hsCRP from test day to test day

    This is a marker of inflammation, it will be measured from plasma of venous blood samples

    Measured: Measured on each test day (acute effect in a cross-over design). A mean of the samples before exercise / before breakfast, and 1.5, 2.5, 3.5 and 24 hours after breakfast is used for analysis of change from test day to test day

  3. Change in VCAM from test day to test day

    This is a marker of inflammation, it will be measured from plasma of venous blood samples

    Measured: Measured on each test day (acute effect in a cross-over design). A mean of the samples before exercise / before breakfast, and 1.5, 2.5, 3.5 and 24 hours after breakfast is used for analysis of change from test day to test day

Secondary outcomes (2)
  1. Change in Blood glucose (venous samples) from test day to test day

    Plasma samples of venous blood

    Measured: Measured on each test day (acute effect in a cross-over design). A mean of the samples before exercise / before breakfast, and 1.5, 2.5, 3.5 and 24 hours after breakfast is used for analysis of change from test day to test day

  2. Change in triglycerides from test day to test day

    Plasma samples of venous blood

    Measured: Measured on each test day (acute effect in a cross-over design). A mean of the samples before exercise / before breakfast, and 1.5, 2.5, 3.5 and 24 hours after breakfast is used for analysis of change from test day to test day

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted18 Sep 2015 (estimated)
  2. Study startJan 2013
  3. Primary completionJun 2014
  4. Study completionJun 2014

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
12 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02554669
Sponsor's protocol ID
papa vs pppa
Status last verified
Sep 2015
First submitted
23 May 2015
Last updated
18 Sep 2015
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing postprandial and postabsorptive physical activity on treadmill in people with Hyperglycemia and Inflammation, run by Inland Norway University of Applied Sciences.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 18 Sep 2015. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in interstitial glucose from test day to test day (time frame: Measured continuously on each test day, but a mean of every 5. minute during test day (from breakfast until 22 hours after breakfast) is stored and used for analysis (acute effect in a cross-over design).). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Sep 2015; AzTrials last refreshed its copy on 3 Nov 2026.

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