NCT01801956

Brief Summary

Background: Low levels of cardiorespiratory fitness are associated with high risk of non-communicable diseases and all-cause mortality. Physical activity level is the primary determinant of cardiorespiratory fitness in adults. However, knowledge on how to motivate people to engage in physical activity and maintain an active lifestyle is lacking. This study aims to investigate whether a motivational, individual, and locally anchored exercise intervention, in primary care, can improve cardiorespiratory fitness in 30 to 49 year olds with a low or very low cardiorespiratory fitness. Design: Randomised controlled trial with 6 and 12 months follow-up. The primary outcome is cardiorespiratory fitness. Secondary outcomes include biochemical parameters (HbA1C, HDL- and LDL-cholesterol, and triglyceride), physical activity level (measured by accelerometer), self-reported physical activity, anthropometric parameters and health-related quality of life. Methods: Cardiorespiratory fitness will be estimated via a maximal incremental exercise test and expressed as the index of maximum oxygen uptake per minute divided by body weight (ml O2/kg/min). A total of 236 participants, classified with a very low or low cardiorespiratory fitness at a local health check programme, (corresponding to ≤ 39 and ≤35 ml O2/kg/min. for 30-39 and 40-49 year-old men respectively and ≤33 and ≤31 ml O2/kg/min. for 30-39 and 40-49 year-old women respectively), will be randomised into two groups. The intervention group will receive 4 motivational interviews, six months membership to a sport club, and a global positioning watch to upload training activity to a social media. The comparison group will receive standard care: a one hour motivational interview. In addition to an Intention-to-treat analysis a per-protocol analysis will be performed. Effect of the intervention will be estimated by evaluating the differences in mean changes in cardiorespiratory fitness between the two groups. Discussion:In new and innovative ways the focus of this study will be to improve cardiorespiratory fitness among a 30-49 year-old at-risk group using social media, GPS-technology, on-going personal support and individually tailored physical activity.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
240

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Feb 2013

Typical duration for not_applicable

Geographic Reach
1 country

3 active sites

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 1, 2013

Completed
19 days until next milestone

First Submitted

Initial submission to the registry

February 20, 2013

Completed
9 days until next milestone

First Posted

Study publicly available on registry

March 1, 2013

Completed
2.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2016

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2016

Completed
Last Updated

February 6, 2015

Status Verified

October 1, 2013

Enrollment Period

3 years

First QC Date

February 20, 2013

Last Update Submit

February 5, 2015

Conditions

Keywords

Maximum oxygen uptakePhysical activityPhysical inactivityMotivational interviewCardiorespiratory fitnessPrimary careCommunity care

Outcome Measures

Primary Outcomes (1)

  • Maximum oxygen uptake

    The outcome is measured by an indirectly standardized and validated max imalergometer bicycle test. The bicycle is cycled at 100 watt (women 70 watt). Every second minute the load is increased by 35 watt until the load causes fatigue. The highest load achieved, the time spent cycling at the highest load and the weight of the participant are put into a formula and the CRF is estimated

    Change from baseline maximum oxygen uptake at 6 and 12 months.

Secondary Outcomes (1)

  • Physical activity

    Change from baseline physical activity at 6 and 12 months.

Other Outcomes (4)

  • Biochemical variables

    Change from baseline biochemical varibles at 12 months.

  • Sedentary behavior

    Change from baseline sedentary behavior at 6 and 12 months.

  • Anthropometric variables

    Change from baseline antropometric variables at 12 months.

  • +1 more other outcomes

Study Arms (2)

Motivational interviewing

ACTIVE COMPARATOR

A one hour motivational interview

Other: Motivational interview

Physical activity

EXPERIMENTAL

Four motivational interviews, free membership of a sport club, virtual arena to upload training data from a GPS-watch

Behavioral: physical activityOther: Motivational interviewOther: Virtual arena

Interventions

free membership of a sport club

Physical activity

Four motivational interviews by instructors of the local sport club

Motivational interviewingPhysical activity

Uploading of training data from a GPS-watch to a virtual arena

Physical activity

Eligibility Criteria

Age30 Years - 49 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • years old
  • access to e-mail and internet
  • a low or very low VO2max

You may not qualify if:

  • health problems preventing participation
  • on medication with a beta-blocker
  • pregnancy
  • alcoholism
  • unable to communicate with the staff.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

Aarhus University, Department of Public Health

Aarhus, 8000, Denmark

RECRUITING

Aarhus University

Aarhus, 8000, Denmark

RECRUITING

Aarhus University

Aarhus, 8000, Denmark

RECRUITING

Related Publications (2)

  • Obling KH, Overgaard K, Juul L, Maindal HT. Effects of a motivational, individual and locally anchored exercise intervention (MILE) on cardiorespiratory fitness: a community-based randomised controlled trial. BMC Public Health. 2019 Feb 28;19(1):239. doi: 10.1186/s12889-019-6556-0.

  • Obling KH, Overgaard K, Juul L, Maindal HT. The MILE study: a motivational, individual and locally anchored exercise intervention among 30-49 year-olds with low levels of cardiorespiratory fitness: a randomised controlled study in primary care. BMC Public Health. 2013 Dec 23;13:1224. doi: 10.1186/1471-2458-13-1224.

MeSH Terms

Conditions

Motor ActivitySedentary Behavior

Interventions

ExerciseMotivational Interviewing

Condition Hierarchy (Ancestors)

Behavior

Intervention Hierarchy (Ancestors)

Motor ActivityMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological PhenomenaDirective CounselingCounselingMental Health ServicesBehavioral Disciplines and ActivitiesHealth ServicesHealth Care Facilities Workforce and Services

Study Officials

  • Kirstine H Obling, St PhD

    University of Aarhus

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Kirstine H Obling, St PhD

CONTACT

Helle T Maindal, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
INVESTIGATOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 20, 2013

First Posted

March 1, 2013

Study Start

February 1, 2013

Primary Completion

February 1, 2016

Study Completion

February 1, 2016

Last Updated

February 6, 2015

Record last verified: 2013-10

Locations