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Effect of Blood Flow-restricted Exercise Frequency on Strength Recovery Following Incomplete SCI

4. August 2026 aktualisiert von: Karen Hux, Ph.D., Quality Living, Inc.

Effect of Blood Flow-restricted Resistance Exercise Frequency on Strength Recovery Following Incomplete Cervical Spinal Cord Injury

The goal of this clinical trial is to determine the effect of treatment frequency on the physical recovery of adults with incomplete spinal cord injury. The treatment will last for eight weeks and will occur either either two or three times weekly. The main research questions are:

  1. How do changes in muscle strength compare between participants who receive eight weeks of blood flow-restricted exercise two times vs. three times weekly?
  2. How do changes in the level of independence performing a selected functional task compare between participants who receive eight weeks of treatment two times vs. three times weekly?
  3. How do changes in the perceived exertion needed to perform a functional task compare between participants who receive eight weeks of treatment two times vs. three times weekly?

The researchers will compare people receiving treatment two vs. three times per week to see if they differ in the amount of change seen in muscle strength, level of independence performing a functional task requiring use of the targeted muscle group, and/or perceived exertion required to perform the functional task.

Participants will:

  1. complete three pre-treatment evaluation sessions to establish muscle strength, level of independence performing a functional task, and perceived exertion required to perform a functional task.
  2. perform four sets of 20 muscle contraction repetitions of blood flow-restricted exercise on the left and right sides of the body using the targeted muscle group either two times or three times weekly depending on treatment group assignment.
  3. complete three post-treatment evaluation sessions to establish muscle strength, level of independence performing a functional task, and perceived exertion required to perform a functional task.

Studienübersicht

Status

Anmeldung auf Einladung

Bedingungen

Intervention / Behandlung

Detaillierte Beschreibung

Participants in both treatment groups will receive blood flow-restricted (BFR) intervention for eight weeks. Other than substituting BFR exercises for those typically performed with the target muscle group, a participant's established treatment program will not change with study enrollment.

Participants will engage in pre-treatment data collection measuring the strength and functional use of the target muscle group for three consecutive days before beginning the BFR protocol. We will use a dynamometer to measure in Newtons the maximum force a participant can exert with the left and right target muscle. To measure functional use, we will assess the assistance a participant needs to perform a designated functional task using the Functional Independence Measure (FIM) rating scale. Participants will rate their perceived effort with the Borg category-ratio 10 Rating of Perceived Exertion (Borg) scale.

Each BFR exercise session will begin with measuring resting blood pressure to ensure it is between 80/50 mmHg and 150/90 mmHg. We will then place a 50% inflated pneumatic cuff either with or without an electrical stimulation (ES) device, as appropriate, on the participant's target limb. The participant will perform 4 sets of 20 low-dose contractions of the target muscle with 30 s rest between sets. We will only use ES supplementation when a participant can not perform additional set repetitions independently. Resistance band placement will increase repetition difficulty as strength increases. The treatment regimen will then repeat with the contralateral limb.

We will repeat the measurement of muscle strength and functional task performance for three consecutive days at the conclusion of the eight-week treatment regimen. Again, we will rate the assistance provided for functional task performance using the FIM scale, and the participant will report the effort exerted using the Borg scale.

Studientyp

Interventionell

Einschreibung (Geschätzt)

20

Phase

  • Unzutreffend

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienorte

    • Nebraska
      • Omaha, Nebraska, Vereinigte Staaten, 68104
        • Quality Living, Inc.

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

  • Erwachsene
  • Älterer Erwachsener

Akzeptiert gesunde Freiwillige

Nein

Beschreibung

Inclusion Criteria:

  • A current client receiving treatment for a spinal cord injury at Quality Living, Inc.

Exclusion Criteria:

  • Does not speak English
  • Can not follow commands
  • Recent history of deep vein thrombosis, autonomic dysreflexia, orthostatic hypotension, or cardiovascular disease

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Behandlung
  • Zuteilung: Zufällig
  • Interventionsmodell: Parallele Zuordnung
  • Maskierung: Keine (Offenes Etikett)

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Aktiver Komparator: Two times per week
Participants will received blood flow-restricted exercise treatment two times per week for eight weeks. Treatment will target one muscle group both on the left and right side of the body. Participants will complete four sets of 20 muscle contraction repetitions with a 30-second rest period between each set. If a participant can not complete all 20 repetitions in a set, they will receive electrical stimulation to the muscle to prompt performance of the remaining set contractions.
Blood flow-restricted exercise involves performance of low-load contractions of a target muscle group while a pneumatic cuff placed proximally on the limb partially restricts blood flow to muscles and venous return to central circulation.
Andere Namen:
  • BFR
Aktiver Komparator: Three times per week
Participants will received blood flow-restricted exercise treatment three times per week for eight weeks. Treatment will target one muscle group both on the left and right side of the body. Participants will complete four sets of 20 muscle contraction repetitions with a 30-second rest period between each set. If a participant can not complete all 20 repetitions in a set, they will receive electrical stimulation to the muscle to prompt performance of the remaining set contractions.
Blood flow-restricted exercise involves performance of low-load contractions of a target muscle group while a pneumatic cuff placed proximally on the limb partially restricts blood flow to muscles and venous return to central circulation.
Andere Namen:
  • BFR

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Torque in Newton-meters
Zeitfenster: Three consecutive days pre- and post-treatment
Rotational force exerted when contracting the target muscle group
Three consecutive days pre- and post-treatment

Andere Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Functional Independence Measure rating
Zeitfenster: Three consecutive days pre- and post-treatment
The Functional Independence Measure (FIM) is a seven-point scale (i.e., 1=total assistance, 7=complete independence) for quantifying the support needed for a participant to perform a designated functional task.
Three consecutive days pre- and post-treatment
Borg category-ratio 10 Rating of Perceived Exertion scale
Zeitfenster: Three consecutive days pre- and post-treatment
The Borg category-ratio 10 Rating of Perceived Exertion scale (Borg) provides a means for participants to rate their perceived effort during functional task performance (0=no exertion; 10=highest effort possible).
Three consecutive days pre- and post-treatment

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Ermittler

  • Studienleiter: Karen Hux, Ph.D., Quality Living, Inc.

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Tatsächlich)

15. Juli 2026

Primärer Abschluss (Geschätzt)

1. Juli 2027

Studienabschluss (Geschätzt)

1. Juli 2027

Studienanmeldedaten

Zuerst eingereicht

25. Juni 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

25. Juni 2026

Zuerst gepostet (Tatsächlich)

1. Juli 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

5. August 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

4. August 2026

Zuletzt verifiziert

1. Juni 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Andere Studien-ID-Nummern

  • BFR exercise frequency

Plan für individuelle Teilnehmerdaten (IPD)

Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?

NEIN

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

Diese Informationen wurden ohne Änderungen direkt von der Website clinicaltrials.gov abgerufen. Wenn Sie Ihre Studiendaten ändern, entfernen oder aktualisieren möchten, wenden Sie sich bitte an register@clinicaltrials.gov. Sobald eine Änderung auf clinicaltrials.gov implementiert wird, wird diese automatisch auch auf unserer Website aktualisiert .