Skip to content

Effects of Unloading on Muscle Mass

The Effect of Immobilization on Myocellular Characteristics in Healthy, Young Males

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00936039
Enrollment
15
Registered
2009-07-09
Start date
2009-10-31
Completion date
2013-06-30
Last updated
2013-07-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Immobilization, Physical Inactivity

Brief summary

In the present study, the effects of 3 weeks of unloading on muscle mass and muscle fiber characteristics will be determined. In addition, the effects of 6 weeks of recovery will be assessed.

Interventions

BEHAVIORALunloading

2 weeks of unloading of a single leg

Sponsors

Maastricht University Medical Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
BASIC_SCIENCE
Masking
NONE

Eligibility

Sex/Gender
MALE
Age
18 Years to 35 Years
Healthy volunteers
Yes

Inclusion criteria

* Healthy * BMI \< 30 kg/m2

Exclusion criteria

* Use of medication that may affect haemostasis * Subjects with (recent) musculoskeletal/orthopaedic disorders known to affect the outcome of the study or that compromise their ability to walk with crutches * Subjects with metal implants in their lower limbs * Subjects with known cardiovascular and/or haemostasis disorders * Subjects with known severe hypertension

Design outcomes

Primary

MeasureTime frame
muscle mass, muscle fiber size1 week before unloading; immediately (1 day) after unloading and 6 weeks after unloading

Secondary

MeasureTime frame
muscle strength1 week before unloading; immediately (1 day) after unloading and 6 weeks after unloading

Countries

Netherlands

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 26, 2026