Timecourse of Immobilization Experiment
TIME
Short-term Muscle Disuse Induces a Rapid and Sustained Decline in Daily Myofibrillar Protein Synthesis Rates
1 other identifier
interventional
13
1 country
1
Brief Summary
The effect of unilateral lower limb immobilisation over one week on muscle atrophy
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Jan 2016
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 1, 2016
CompletedFirst Submitted
Initial submission to the registry
December 2, 2016
CompletedFirst Posted
Study publicly available on registry
December 6, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2017
CompletedStudy Completion
Last participant's last visit for all outcomes
October 1, 2019
CompletedNovember 8, 2019
November 1, 2019
1.9 years
December 2, 2016
November 6, 2019
Conditions
Outcome Measures
Primary Outcomes (1)
Muscle size
Quadriceps muscle volume measured via MRI
Days 0, 2 and 7
Secondary Outcomes (2)
Muscle protein synthesis
days 0-2, 2-7 and 0-7
Muscle strength
Pre and post immobilization
Study Arms (1)
Lower limb immobilisation
EXPERIMENTALAll participants will undergo 7 days of unilateral leg immobilization. Participants will wear a leg brace (Donjoy X-ACT, DJO Global, USA) on one of their legs which will fix the leg at 40 degrees of flexion for the 7 days. Participants will not be allowed to remove the brace at any stage and are prohibited from bearing weight on the immobilized leg, and will ambulate on crutches throughout the week of immobilization.
Interventions
Eligibility Criteria
You may qualify if:
- BMI \>18 and \<28 no prescription medications or current illness -
You may not qualify if:
- BMI \<18 and \>28 current prescription medication no history of leg injury
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Sport & Health Sciences
Exeter, Devon, EX1 2LU, United Kingdom
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- BASIC SCIENCE
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
December 2, 2016
First Posted
December 6, 2016
Study Start
January 1, 2016
Primary Completion
December 1, 2017
Study Completion
October 1, 2019
Last Updated
November 8, 2019
Record last verified: 2019-11
Data Sharing
- IPD Sharing
- Will not share