Blood Sugar Responses by Physical Activity Level and Intensity

• Conditions: Diabetes

• Registration Number: NCT02587780
• Lead Sponsor: Small Changes

Brief Summary

This observational study is designed to examine the glycaemic responses (of sedentary, active and very active healthy individuals) to a 50gram dose of glucose.

Detailed Description

3 groups of participants fulfilling the criteria for: sedentary (\< 30mins phys activity p/day) active (\>30 mins phys act p/day) and very active (\> 60 mins phys act p.day) will be invited to attend a laboratory session on two separate occasions separated by one week and asked to: fast overnight before having a baseline and then six further capillary (finger-prick) blood samples taken over a period of two hours following consumption of 50 grams of glucose. The blood samples will produce a standard glucose 'curve' and this will be used to calculate incremental area under the curve to identify similarities or differences between the three groups responses. Hypothetically it may be that the different levels and intensities of physical activity will affect the results with active individuals producing flatter better-controlled blood sugar responses than the inactive subjects. The Null-hypothesis would be no difference in response. it is possible, for instance, that such a low-dose of glucose in an otherwise healthy group of individuals has no discernible affect on such a curve. Physical activity will be assessed by questionnaire and interview. Anthropometric measures (height, weight and body composition) will be taken using a stadiometer and bio-electrical impedance unit (Bodystat 1500, Body Stat: Isle of man UK) at the time of the laboratory measures. No participants will have data taken of any kind before they have read a participant information sheet and signed informed consent.

Study Timeline

• Status Verified: 2015-10
• Study First Submitted: 2015-10-02
• Study First Submitted QC: 2015-10-26
• Last Update Submitted: 2015-10-26
• Study First Posted: 2015-10-27
• Last Update Posted: 2015-10-27
• Study Start: 2015-11
• Primary Completion: 2015-11
• Study Completion: 2015-12

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 45

Inclusion Criteria

• male and female.
• age:19-59
• inactive, active or very active according to criteria outlined.

Exclusion Criteria

• Diabetics other chronic condition likely to affect blood sugar
• <19>59 age

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Blood glucose response	One year	blood glucose responses in sedentary, active and very active groups of men and women

Secondary Outcome Measures

Name	Time	Method
Body mass index	One year	Height in metres squared divided by weight in kilograms
Body fat percentage	One year	percentage body fat recorded by bio-electrical impedance
Physical Activity duration	One year	A questionnaire to asses daily physical activity participation
Intensity of physical activity	One year	A questionnaire assessing rating of perceived exertion