The Effect of Physical Activity Intervention Flexibility on the Time Course of Changes in Body Composition and Metabolism

NCT ID: NCT02020239

Last Updated: 2016-10-28

Basic Information

• Recruitment Status: UNKNOWN
• Clinical Phase: NA
• Total Enrollment: 60 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2013-12-31
• Study Completion Date: 2017-12-31

Brief Summary

The investigators goal is to optimise physical activity interventions to help previously inactive women improve their body shape and composition. Many people seeking to lose weight or improve body composition initiate an exercise programme. The most common recommendation of an exercise intervention for someone attempting to manage their weight, has been to 'prescribe' the recommended 150 minutes of exercise per week (World Health Organisation), often using one mode of exercise. An alternative approach might be to offer a portfolio of activities, from which the exerciser can pick and choose, to facilitate greater amounts of physical activity. The problem with this is how do you account for the different intensities of walking, washing the car, playing badminton, cycling, jogging, etc? In this study, the investigators will try to overcome this barrier by allocating a number of "physical activity points" to each activity. Using this physical activity points system, participants will be provided with a points target that they can meet using any combination of activities.

The investigators research aim is therefore to compare this points-based system against the traditional 5x30minute prescription (and sedentary control) for their ability to help previously inactive women to drop a dress size, increase fat burning, positively change their body composition and tone their tummy.

Conditions

Sedentary; Overweight

Keywords

physical activity; females; body composition

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

Prescribed exercise

Participants will be asked to choose one activity and stick to it for the duration of the intervention. Participants will be able to choose between brisk walking/slow jogging or cycling. The intervention will require the completion of 30 minutes of chosen activity on 5 days of the week, which will be recorded in a physical activity diary.

Group Type: EXPERIMENTAL

Exercise

Intervention Type: OTHER

Points-based physical activity

Participants will be asked to achieve a pre-set, individualised points target for physical activity each week. Points are acquired through the completion of a minimum 10 minutes of activity, choosing from the extensive list of activities provided; for example, 10 minutes of jogging achieves 4.5 points, whereas 10 minutes of washing a car achieves 1.5 points. The target will be 35-40 points per week, which equates to approximately 6 points per day. Any combination of activity, duration and frequency can be selected.

Group Type: EXPERIMENTAL

Exercise

Intervention Type: OTHER

Waiting list control

Participants will be asked to maintain their normal activities and diet. They will be added to a waiting list to receive either exercise intervention after completing the 24-week trial period, so that they do not miss out on the opportunity to receive the exercise intervention.

Group Type: NO_INTERVENTION

No interventions assigned to this group

Interventions

Exercise

Intervention Type: OTHER

Eligibility Criteria

Inclusion Criteria

• Female
• Aged 25-50 years old
• Inactive (less than 150 minutes of moderate-intensity aerobic physical activity per week)
• BMI 25-35 kg/m2
• Good general health, as assessed by the School of Sport, Exercise and Rehabilitation Sciences' General Health Questionnaire
• Willing to strictly comply with all study procedures and restrictions
• Willing to participate, as demonstrated by voluntary written informed consent

Exclusion Criteria

• Positive result from the urine sample pregnancy test
• Currently breast feeding
• Currently participating in another clinical trial deemed to potentially interfere with this study
• Current or recent (within the last 30 days) smoker
• Currently taking prescription or non-prescription medication that may interfere with metabolism (including beta-blockers, insulin, bronchodilators, anti-inflammatory agents, thyroxine and medication/supplements that in the opinion of the investigators may affect metabolism).

• Minimum Eligible Age: 25 Years
• Maximum Eligible Age: 50 Years
• Eligible Sex: FEMALE
• Accepts Healthy Volunteers: Yes

Sponsors

Cereal Partners Worldwide

INDUSTRY

Sponsor Role: collaborator

University of Birmingham

OTHER

Sponsor Role: lead

Responsible Party

Dr Andrew Blannin

Dr (PhD), Lecturer

Responsibility Role: PRINCIPAL_INVESTIGATOR

Locations

University of Birmingham, School of Sport, Exercise and Rehabilitation Sciences

Birmingham, , United Kingdom

Countries

United Kingdom

References

Holliday A, Burgin A, Fernandez EV, Fenton SAM, Thielecke F, Blannin AK. Points-based physical activity: a novel approach to facilitate changes in body composition in inactive women with overweight and obesity. BMC Public Health. 2018 Feb 17;18(1):261. doi: 10.1186/s12889-018-5125-2.

Reference Type: DERIVED

PMID: 29454318 (View on PubMed)

Other Identifiers

Bham_CPW_PhysActIntervention

Identifier Type: -

Identifier Source: org_study_id