A System for Lengthening Contraction Training of Muscle

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

36 participants

Study Classification

INTERVENTIONAL

Study Start Date

2007-09-30

Study Completion Date

2009-12-31

Brief Summary

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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.

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Detailed Description

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Conditions

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Healthy

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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VSC-VLC

velocity-controlled variable resistance, lengthening contraction

Group Type EXPERIMENTAL

Exercise

Intervention Type OTHER

Velocity-controlled variable resistance protocols enable trainees to load their muscles more optimally along the entire ROM in either or both of the shortening (VSC) and lengthening (VLC) phases of a training repetition

SC

Constant weight shortening contraction

Group Type ACTIVE_COMPARATOR

Exercise

Intervention Type OTHER

Standard training of leg extension

Interventions

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Exercise

Velocity-controlled variable resistance protocols enable trainees to load their muscles more optimally along the entire ROM in either or both of the shortening (VSC) and lengthening (VLC) phases of a training repetition

Intervention Type OTHER

Exercise

Standard training of leg extension

Intervention Type OTHER

Eligibility Criteria

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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.

Minimum Eligible Age

65 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes