NCT03722797

Brief Summary

This cross-sectional study explores physical activity and energy expenditure among inactive adults with a unilateral transtibial amputation. Results may assist with physical activity prescription for adults with unilateral lower-limb loss.

Trial Health

57
Monitor

Trial Health Score

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

Enrollment
3

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started May 2017

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
terminated

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

May 11, 2017

Completed
12 months until next milestone

First Submitted

Initial submission to the registry

May 1, 2018

Completed
6 months until next milestone

First Posted

Study publicly available on registry

October 29, 2018

Completed
3.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 17, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 17, 2022

Completed
Last Updated

March 4, 2022

Status Verified

February 1, 2022

Enrollment Period

4.8 years

First QC Date

May 1, 2018

Last Update Submit

February 17, 2022

Conditions

Keywords

energy metabolismwalkingexercise

Outcome Measures

Primary Outcomes (1)

  • Change in gait speed pre- and post-walking tests

    self-selected and fast speeds obtained with GaitRite

    immediately before/after

Secondary Outcomes (1)

  • Change in gait symmetry

    immediately before/after

Study Arms (2)

Unilateral Transtibial Amputation

Individuals with a unilateral, transtibial amputation.

Procedure: Metabolic Cost Testing Procedures

Controls

Healthy adults without a lower-limb amputation who have been matched to participants in the Unilateral Transtibial Amputation group based on age, sex, and body mass index.

Procedure: Metabolic Cost Testing Procedures

Interventions

The Oxycon Mobileâ„¢Portable VO2 Measurement system will be used to measure VO2 uptake during 2 walking tests. Test order will be randomized. Treadmill Test: Participants will walk on a treadmill at constant speed, based on the participant's self-selected gait speed, for 2.5 minutes in each stage. Walking will occur at 75% of self-selected gait speed in stage 1, 100% in stage 2, and 125% in stage 3. Over-ground Test: Participants will walk in an uncarpeted corridor on a course consisting of 2 cones, 20-meters apart. Participants will be instructed to walk at a constant speed for 2.5 minutes in each stage. Instructions will be to walk at their "slow" speed in stage 1, their "usual, comfortable" speed in stage 2, and their "brisk" speed in stage 3.

ControlsUnilateral Transtibial Amputation

Eligibility Criteria

Age18 Years - 60 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)
Sampling MethodNon-Probability Sample
Study Population

Investigators will recruit 22 (males and females) with a unilateral (i.e. single limb), transtibial (i.e. below-the-knee) amputation. Given the prevalence of amputations is greater in males, it is expected that the sample will be predominantly male, but there will not be any inclusion/exclusion criteria related to sex. 20 controls will be recruited as age-, sex-, and body mass index-matched controls for those with a unilateral transtibial amputation who complete the entire study evaluation protocol.

You may qualify if:

  • Ages 18-60 years
  • Able to read and speak English
  • Saltin-Grimby Physical Activity Level of I or II
  • Unilateral, transtibial (below-the-knee) amputation
  • Currently wearing a prosthesis with use of an assistive device no greater than a cane
  • Wearing prosthetic at least 8 hours per day and inside and outside the home: This criteria will help to ensure that adults are beyond the initial weaning into a prosthetic period and are prosthetic users rather than nonusers.
  • Pain-free in the legs and low back regions
  • Able to walk without an assistive device

You may not qualify if:

  • Current infections or illnesses that would affect safe participation in the study
  • Past medical history of significant cardiovascular disease (e.g. congestive heart failure or previous heart attacks), significant neurological disease (e.g. Parkinson's, Multiple Sclerosis) significant neurological event (e.g. stroke), or major lung condition (e.g. Chronic obstructive pulmonary disease, emphysema)
  • Uncontrolled high blood pressure
  • Uncontrolled Diabetes Mellitus

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Delaware STAR Campus

Newark, Delaware, 19713, United States

Location

Related Publications (57)

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MeSH Terms

Conditions

Motor Activity

Condition Hierarchy (Ancestors)

Behavior

Study Officials

  • Jaclyn M Sions, PhD, PT, DPT

    University of Delaware

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor, Department of Physical Therapy

Study Record Dates

First Submitted

May 1, 2018

First Posted

October 29, 2018

Study Start

May 11, 2017

Primary Completion

February 17, 2022

Study Completion

February 17, 2022

Last Updated

March 4, 2022

Record last verified: 2022-02

Data Sharing

IPD Sharing
Will not share

Locations