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Feasibility of Structured Resistance Training After Lower Extremity Fracture

Feasibility and Impact of a Structured, Supervised Exercise Program Following Lower Extremity Fracture: A Pilot Controlled Study

Adults recovering from surgically managed diaphyseal femur or tibia fractures often experience persistent weakness, pain, and functional limitations despite successful fracture healing. This prospective, non-randomized pilot study evaluates the feasibility and acceptability of a structured, supervised resistance training program initiated approximately 12 weeks after surgery, compared with usual postoperative care alone. The study will assess recruitment, adherence, retention, and protocol fidelity, and will collect exploratory patient-reported and physical function outcomes to inform the design of a future randomized controlled trial.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

This is a prospective, non-randomized, controlled pilot feasibility study enrolling adults aged 20 to 65 years with isolated diaphyseal femur or tibia fractures treated surgically with locked intramedullary nail fixation. Participants will be recruited from routine postoperative fracture clinic visits and enrolled approximately 10 to 14 weeks after injury, once fracture healing has progressed sufficiently to allow full weight bearing and independent participation in supervised exercise.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

40

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Studiesteder

    • Ontario
      • London, Ontario, Canada
        • London Health Sciences Centre
        • Kontakt:
          • LHSCRI LHSCRI

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Beskrivelse

Inclusion Criteria:

  • Adults aged 20 to 65 years
  • Diaphyseal femur or tibia fracture treated surgically with locked intramedullary nail fixation
  • Cleared for full weight bearing with adequate fracture healing and no major complications
  • Able to provide written informed consent in English without an interpreter
  • Able to understand instructions and safely participate in supervised exercise

Exclusion Criteria:

  • Bilateral fractures or open fractures; Polytrauma
  • Cognitive impairment affecting participation or ability to provide informed consent
  • Severe cardiac, respiratory, or neurological conditions that preclude exercise participation
  • Chronic pain syndromes or recent opioid dependence
  • Pre-existing severe lower limb disability
  • Requires an interpreter for consent or cannot follow exercise instructions independently
  • Unable to provide consent due to language barrier

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Støttende pleje
  • Tildeling: Ikke-randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Structured Resistance Training Program
Participants with surgically managed diaphyseal femur or tibia fractures who participate in a 12-week structured, supervised resistance training and activity program initiated approximately 12 weeks after surgery, in addition to usual postoperative care.
A 12-week structured exercise intervention delivered at a community fitness facility by trained study personnel. The program includes 24 supervised small-group resistance training sessions (two per week, 50-75 minutes each), 12 weekly one-to-one coaching sessions (~30 minutes each), and a brief daily home activity program (10-15 minutes per day). The exercise program follows a criteria-based, progressive strength and conditioning framework including mobility, neuromuscular control, strength, power, and fatigue-resistance components. All sessions are supervised by study personnel, and no gym staff are involved in intervention delivery or data collection.
Ingen indgriben: Usual Care Control
Participants with surgically managed diaphyseal femur or tibia fractures who receive usual postoperative care without participation in the structured supervised exercise or coaching program.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Recruitment rate (participants enrolled per month)
Tidsramme: Up to 6 months
Feasibility will be assessed by the number of participants enrolled per month during the recruitment period.
Up to 6 months
Adherence to supervised resistance training program (% of prescribed sessions completed)
Tidsramme: Up to 6 months
Adherence will be calculated as the proportion of completed training sessions out of the total prescribed sessions.
Up to 6 months
Participant retention rate (% completing follow up assessments)
Tidsramme: Up to 6 months
Retention will be defined as the proportion of participants who complete all scheduled follow-up assessments.
Up to 6 months

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Patient Specific Functional Scale Score
Tidsramme: 12, 18, 24, and 52 weeks post-surgery
Patient-reported functional status assessed using the Patient-Specific Functional Scale (PSFS), in which participants rate difficulty performing self-selected activities on a 0-10 scale. Higher scores indicate better function.
12, 18, 24, and 52 weeks post-surgery
Health-related quality of life measured using SF-12
Tidsramme: 12, 18, 24, and 52 weeks post-surgery
Health-related quality of life assessed using the 12-Item Short Form Health Survey (SF-12). Higher scores indicating better health status.
12, 18, 24, and 52 weeks post-surgery
Pain intensity measured using Numeric Pain Rating Scale (0-10)
Tidsramme: 12, 18, 24, and 52 weeks post-surgery
Pain intensity measured using a numeric rating scale ranging from 0 (no pain) to 10 (worst possible pain).
12, 18, 24, and 52 weeks post-surgery
Short Musculoskeletal Functional Assessment (SMFA) score
Tidsramme: 12, 18, 24, and 52 weeks post-surgery
Self-reported musculoskeletal function assessed using the Short Musculoskeletal Functional Assessment (SMFA) questionnaire. Scores are reported according to standardized scoring procedures, with higher scores indicating greater functional limitation.
12, 18, 24, and 52 weeks post-surgery
Functional Independence Test for Lower Extremity Injuries (FIX-IT) score
Tidsramme: 12, 18, 24, and 52 weeks post-surgery
Lower extremity functional performance assessed using the Functional Independence Test for Lower Extremity Injuries (FIX-IT), a performance-based measure of functional mobility following lower extremity injury.
12, 18, 24, and 52 weeks post-surgery
Lateral movement performance measured using Edgren Sidestep Test (seconds)
Tidsramme: 12, 18, 24, and 52 weeks post-surgery
Lateral movement and agility assessed using the Edgren Sidestep Test. Performance is recorded as time to completion in seconds.
12, 18, 24, and 52 weeks post-surgery
Body weight (kilograms)
Tidsramme: 12, 18, 24, and 52 weeks post-surgery
Body weight measured in kilograms using a calibrated scale.
12, 18, 24, and 52 weeks post-surgery
Body mass index (BMI, kg/m²)
Tidsramme: 12, 18, 24, and 52 weeks post-surgery
Body mass index calculated as weight in kilograms divided by height in meters squared.
12, 18, 24, and 52 weeks post-surgery
Thigh circumference measured in centimeters
Tidsramme: 12, 18, 24, and 52 weeks post-surgery
Thigh circumference measured in centimeters using a standardized tape measure to assess lower extremity muscle girth.
12, 18, 24, and 52 weeks post-surgery
Lower extremity muscle strength measured by exercise research team (force output)
Tidsramme: 12, 18, 24, and 52 weeks post-surgery
Lower extremity muscle strength assessed using standardized strength testing procedures performed by the exercise research team. Strength outcomes will be reported as force output using consistent measurement methods.
12, 18, 24, and 52 weeks post-surgery

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Anslået)

15. juni 2026

Primær færdiggørelse (Anslået)

15. juni 2030

Studieafslutning (Anslået)

15. juni 2031

Datoer for studieregistrering

Først indsendt

19. maj 2026

Først indsendt, der opfyldte QC-kriterier

1. juni 2026

Først opslået (Faktiske)

5. juni 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

5. juni 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

1. juni 2026

Sidst verificeret

1. maj 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • RETRAIN Study
  • LHSCRI (Anden identifikator: LHSCRI)

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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