Locomotor Recovery Following Traumatic Brain Injury

NCT ID: NCT04503473

Last Updated: 2024-05-02

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

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

17 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-08-01

Study Completion Date

2022-12-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

The purpose of this study is to investigate the effectiveness of two different walking training interventions on the recovery of strength, mobility, walking and other measures of health in individuals following traumatic brain injury. During this study, participants will aim to complete up to 15 training sessions over 4-5 weeks of each intervention with at least a 4 week break between interventions. Each training session will last approximately 1 hour, while testing sessions performed at the beginning and end of each intervention will last approximately 3-4 hours. Participation in this research study may last up to 6 months including screening and baseline testing. The possible benefits to participant from participation in this study include increased strength of the participants leg muscles and improved walking ability

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

The primary goal of the proposed study is to identify the contributions of the amount of task-specific practice on locomotor (i.e., walking) recovery in patients with (\> 6 Months) traumatic brain injury (TBI). The investigator will do this by building on our previous work directed towards identifying the essential exercise training parameters that maximize locomotor recovery. Consistent with principles of motor learning and exercise physiology, the investigator contend that certain training (i.e., dosage) parameters of physical rehabilitation, including the type (specificity) and amount of task practice, are critical to mobility outcomes following neurological injury. Previous work suggests these training parameters may influence locomotor recovery in patients with other neurological disorders (i.e., stroke), although few studies have attempted to delineate similar contributions of amount of task-specific practice in neurologic injury. Indeed, no studies have carefully controlled these training parameters during physical rehabilitation of patients with neurologic injury, and such interventions are rarely utilized in the clinical setting. Reasons for these knowledge gaps from other rehabilitation studies to patients with neurologic injury or lack of clinical implementation are unclear, but may be due to adherence to traditional rehabilitation theories. One concern is that practicing only stepping tasks reduces attention towards hallmark physical impairments following neurologic injury, such as loss of strength or postural stability, which are considered primary determinants of decreased mobility. Only a few studies have addressed whether providing only structured stepping training can mitigate these impairments without their explicit practice, but not in the neurologic injury population. A related concern is that focused stepping training without significant attention towards impairments or gait quality may exaggerate altered movement strategies, which could be reinforced with repeated practice. However, there is little data to suggest "worsening" of abnormal gait patterns following high intensity training. Rather, recent findings suggest patients demonstrate more normal kinematics. If focused task specific (i.e., stepping) training is to be applied clinically, participant must delineate its contributions towards improving locomotor function, and their effects on underlying impairments and gait kinematics.

Central hypotheses are that stepping training in TBI results in:1) greater locomotor gains as compared to non-specific interventions; 2) gains in selected impairments underlying gait dysfunction (i.e., strength and metabolic capacity and efficiency); and, 3) improvements in gait quality. To test these hypotheses, the proposed crossover, assessor-blinded, randomized clinical trial (RCT) is designed to test the effects of specificity of rehabilitation training applied early-post-stroke. In this RCT, patients \> 6 post-TBI will be allocated ≤ 15 sessions over approximately 4-5 weeks of high-intensity stepping training or conventional therapy. Importantly, training intensity will be held constant to account for this potential confounding factor. Blinded assessments will be performed prior to and following each training paradigm.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Traumatic Brain Injury (TBI)

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Baseline characteristics and training parameters (steps, intensity parameters) will be compared between treatment groups using independent group comparisons. (ANOVA, Kruskal-Wallis, or Chi-squared tests as appropriate).
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

High Intensity Stepping Training

The primary goal will be to perform continuous stepping while maintaining HR within 70-85% maximum predicted HR (if patients are deconditioned, PTs will gradually increase intensity to desired levels as tolerated). We will also record Ratings of Perceived Exertion (RPE) every 3-5 minutes, with goals of 15-18. Sessions will be divided into \~10 minute increments (\~25% of sessions) between speed-dependent treadmill training (described above for treadmill stepping), skill-dependent treadmill training, overground training, and stair climbing.

Group Type EXPERIMENTAL

High Intensity Stepping Training

Intervention Type BEHAVIORAL

The goals will be to maximize stepping activity at high intensities for 40 minutes per 1 hour session, with rest breaks as needed

Conventional Therapy: : Participants provided conventional therapy will perform various standardized exercise tasks during 40 minutes of 1 hr sessions

Conventional Therapy

Participants provided conventional therapy will perform various standardized exercise tasks during 40 minutes of 1 hr sessions. The type of therapeutic activities is based on published normative data of typical activities performed during clinical physical therapy sessions with focus on strengthening activities (25% of session); balance activities (25%); locomotor activities (25%), and combined stretching exercises (10-15%) and transfers (10-15%). Intensity of activities will be targeted at 30-40% of their HR reserve in attempts to maintain consistent intensities between training groups.

Group Type ACTIVE_COMPARATOR

Conventional Therapy

Intervention Type BEHAVIORAL

Participants provided conventional therapy will perform various standardized exercise tasks during 40 minutes of 1 hr sessions

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

High Intensity Stepping Training

The goals will be to maximize stepping activity at high intensities for 40 minutes per 1 hour session, with rest breaks as needed

Conventional Therapy: : Participants provided conventional therapy will perform various standardized exercise tasks during 40 minutes of 1 hr sessions

Intervention Type BEHAVIORAL

Conventional Therapy

Participants provided conventional therapy will perform various standardized exercise tasks during 40 minutes of 1 hr sessions

Intervention Type BEHAVIORAL

Other Intervention Names

Discover alternative or legacy names that may be used to describe the listed interventions across different sources.

HIT

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* \> 6 months post traumatic brain injury
* 18-75 years old
* ability to walk without physical assistance
* Self selected walking speed of 0.01-1.0 m/s

Exclusion Criteria

* \<18 years old
* \>75 years old
* self selected walking speed of \> 1.0 m/s
* \< 3 months from botulinum toxin injection
* Above the knee brace
* Currently receiving physical therapy
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Indiana University

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

George Hornby

Professor of Physical Medicine & Rehabilitation

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

George Hornby, PhD

Role: PRINCIPAL_INVESTIGATOR

Indiana University

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Rehabilitation Hospital of Indiana

Indianapolis, Indiana, United States

Site Status

Countries

Review the countries where the study has at least one active or historical site.

United States

References

Explore related publications, articles, or registry entries linked to this study.

Plawecki A, Henderson CE, Lotter JK, Shoger LH, Inks E, Scofield M, Voigtmann CJ, Katta-Charles S, Hornby TG. Comparative Efficacy of High-Intensity Training Versus Conventional Training in Individuals With Chronic Traumatic Brain Injury: A Pilot Randomized Controlled Study. J Neurotrauma. 2024 Apr;41(7-8):807-817. doi: 10.1089/neu.2023.0494. Epub 2024 Jan 25.

Reference Type DERIVED
PMID: 38204184 (View on PubMed)

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

1911962819

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.