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Effekten av Kegel-øvelser kombinert med biofeedback-terapi på gjenoppretting av tarmsfunksjon, emosjonell stress og livskvalitet hos pasienter etter lav anteriør reseksjon for rektumkreft (BFT in LARS)

8. november 2026 oppdatert av: National Taiwan University Hospital

Effekter av bekkenbunnsøvelser kombinert med en enkelt biofeedback-intervensjon på tarmsfunksjon, emosjonell distress og livskvalitet hos pasienter etter rektumkreftoperasjon

This randomized controlled trial aims to evaluate the effects of combining Kegel exercise with a single biofeedback session on bowel function, emotional distress, and quality of life in patients who have undergone low anterior resection (LAR) for rectal cancer. Low anterior resection syndrome (LARS) is a common postoperative complication following LAR, characterized by increased stool frequency, urgency, and incontinence, which can significantly impair patients' psychological well-being and daily quality of life. Participants will be randomly assigned to one of two groups: (1) Kegel exercise combined with one non-invasive biofeedback session, or (2) Kegel exercise alone. Both groups will perform home-based Kegel exercises for eight weeks. The study aims to determine whether the combined biofeedback and Kegel exercise intervention results in greater improvements in bowel control, emotional well-being, and quality of life compared with Kegel exercise alone.

Studieoversikt

Detaljert beskrivelse

Background:

Patients who undergo low anterior resection (LAR) for rectal cancer often experience low anterior resection syndrome (LARS), characterized by frequent bowel movements, urgency, and incontinence. These symptoms can cause considerable psychological distress and impair daily functioning. Pelvic floor muscle training (PFMT, commonly known as Kegel exercise) is a widely used bowel rehabilitation method; however, its effectiveness depends on patients' ability to perform the exercises correctly. Biofeedback therapy (BFT) provides real-time visual and auditory feedback to help patients better control pelvic floor muscle contractions and relaxations, thereby improving training precision.

Objective:

To examine whether combining a single biofeedback intervention with Kegel exercise produces greater improvements in bowel function, emotional distress, and quality of life than Kegel exercise alone in patients after low anterior resection for rectal cancer.

Methods:

This is a prospective randomized controlled trial (IRB No. 202502004RINB) to be conducted at National Taiwan University Hospital. A total of 66 eligible participants who have completed at least four weeks after LAR will be recruited. Participants will be randomized (1:1) into experimental and control groups using block randomization with block sizes of 4, 6, or 8.

The experimental group will receive one 30-minute session of non-invasive electromyographic biofeedback training to correct pelvic floor muscle contraction and relaxation techniques, followed by Kegel exercise instruction. The control group will receive only verbal instruction and demonstration of Kegel exercises without the use of biofeedback devices.

Both groups will continue home-based Kegel exercises for eight weeks, with a total follow-up period of twelve weeks. Assessments will be conducted at four time points: baseline (T0), 4 weeks (T1), 8 weeks (T2), and 12 weeks (T3).

Outcome Measures:

Primary outcome: Low Anterior Resection Syndrome Score (LARS Score). Secondary outcomes: Hospital Anxiety and Depression Scale (HADS), The World Health Organization Quality of Life Assessment-BREF Taiwan version (WHOQOL-BREF Taiwan version).

Expected Results:

The experimental group (Kegel exercise combined with single-session biofeedback) is expected to demonstrate greater improvements in bowel function, reduced emotional distress, and enhanced quality of life compared with the Kegel-only group.

Significance:

This study aims to establish a low-cost, non-invasive, and feasible postoperative rehabilitation approach to enhance bowel recovery and improve the quality of life in patients after rectal cancer surgery.

Studietype

Intervensjonell

Registrering (Antatt)

66

Fase

  • Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

      • Taipei, Taiwan, 100
        • National Taiwan University Hospital

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år og eldre (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Inclusion Criteria:

  • Patients who have undergone their first low anterior resection (LAR) for rectal cancer, or LAR with temporary stoma reversal at least 4 weeks prior to enrollment.
  • Age ≥ 18 years.
  • Hemodynamically stable with stable vital signs.
  • Conscious, able to communicate in Mandarin or Taiwanese, and capable of following verbal instructions to perform exercises.

Exclusion Criteria:

  • Presence of a current intestinal stoma.
  • Implanted cardiac pacemaker.
  • Scheduled to receive postoperative adjuvant radiotherapy.
  • History of psychiatric disorders (e.g., depression).
  • Postoperative complications such as anastomotic leakage, intra-abdominal infection, or fistula formation.
  • Unable to cooperate with or complete biofeedback training.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Enkelt

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Kegel-øvelse med biofeedbackterapi

A single 30-minute non-invasive EMG biofeedback session will guide participants to correctly contract and relax pelvic floor muscles using real-time visual and auditory feedback. Conducted by trained healthcare staff in the physical therapy center, with additional outpatient or ward instruction if needed. After the session, participants perform home-based Kegel exercises for 8 weeks (3-5 times/day, 6-8 contractions/set, hold 5-10 sec, relax 10 sec, ≥5 days/week). Research staff will follow up every 1-2 weeks by phone to monitor adherence and adjust intensity. If stable 5-sec contractions are achieved, duration or frequency may increase; if fatigue, abdominal pressure, or discomfort occurs, training will be reduced or paused for safety.

Andre navn:
  • Kegel-øvelse med biofeedback (Kegel + BFT)
Aktiv komparator: Kegel-øvelse bare

Participants in the control group will receive a single 30-minute session of verbal instruction and demonstration on Kegel exercise by trained medical personnel, without the use of any biofeedback device. The provider, setting, duration, exercise dosage, and follow-up schedule are identical to those in the experimental group.

Andre navn:
  • Kegel øvelse

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Change in Bowel Function Measured by the Low Anterior Resection Syndrome (LARS) Score
Tidsramme: Baseline, 4 weeks, 8 weeks, and 12 weeks after intervention

Bowel function will be assessed using the validated Low Anterior Resection Syndrome (LARS) score, which consists of five items evaluating incontinence, frequency, clustering, and urgency. The total score ranges from 0 to 42, with higher scores indicating more severe bowel dysfunction.

Baseline, 4 weeks, 8 weeks, and 12 weeks after intervention

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Change in Emotional Distress Measured by the Hospital Anxiety and Depression Scale (HADS)
Tidsramme: Baseline, 4 weeks, 8 weeks, and 12 weeks after intervention

Emotional distress will be measured using the Hospital Anxiety and Depression Scale (HADS), which includes 14 items divided into two subscales: anxiety (HADS-A) and depression (HADS-D). Each subscale has a score range of 0-21, with higher scores indicating greater emotional distress.

Baseline, 4 weeks, 8 weeks, and 12 weeks after intervention
The World Health Organization Quality of Life Assessment-BREF (WHOQOL-BREF)
Tidsramme: Baseline, 4 weeks, 8 weeks, and 12 weeks after intervention

Quality of life will be assessed using the WHOQOL-BREF Taiwan version, a 28-item instrument developed by the WHOQOL Group and culturally adapted for use in Taiwan. The scale measures four major domains-Physical Health, Psychological Health, Social Relationships, and Environment-as well as two national items relevant to local culture. Scores in each domain are transformed to a 4-20 scale, with higher scores indicating better perceived quality of life.

Baseline, 4 weeks, 8 weeks, and 12 weeks after intervention

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

5. januar 2026

Primær fullføring (Antatt)

31. desember 2027

Studiet fullført (Antatt)

31. desember 2027

Datoer for studieregistrering

Først innsendt

19. november 2025

Først innsendt som oppfylte QC-kriteriene

19. november 2025

Først lagt ut (Faktiske)

28. november 2025

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

10. november 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

8. november 2026

Sist bekreftet

1. november 2026

Mer informasjon

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

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