A System for Lengthening Contraction Training of Muscle

Not Applicable

Completed

• Conditions: Healthy
• Interventions: Other: Exercise

• Registration Number: NCT00575107
• Lead Sponsor: University of Michigan

Brief Summary

Evaluation of a new exercise machine designed to improve strength and speed of movement in the leg muscles. Investigators are trying to learn whether a new training method results in greater strength improvements as compared to a traditional method.

Detailed Description

Not available

Study Timeline

• Study Start: 2007-09
• Study First Submitted: 2007-12-14
• Study First Submitted QC: 2007-12-14
• Study First Posted: 2007-12-18
• Primary Completion: 2009-12
• Study Completion: 2009-12
• Status Verified: 2010-01
• Last Update Submitted: 2011-08-03
• Last Update Posted: 2011-08-04

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 36

Inclusion Criteria

• healthy
• able to exercise 3 times per week for 16 weeks at Mobility Research Center

Exclusion Criteria

• under- or overweight
• chronic disease that limits ability to exercise
• hips and legs limited by arthritis or pain
• presently engaged in a strenuous exercise program
• planned absence greater than one week.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
VSC-VLC	Exercise	velocity-controlled variable resistance, lengthening contraction
SC	Exercise	Constant weight shortening contraction

Primary Outcome Measures

Name	Time	Method
Leg strength	16 weeks

Secondary Outcome Measures

Name	Time	Method
Ability to rise from a chair	16 weeks

Trial Locations

Locations (1)

Mobility Research Center; 🇺🇸 Ann Arbor, Michigan, United States