NCT04886921

Brief Summary

The unilateral transverse rectus abdominis musculocutaneous (TRAM) flap is a major operation widely used for breast reconstruction. It is hypothesized that this surgery has the potential risk of weakening the abdominal wall because it disrupts the integrity of the rectus abdominis muscle (RA), therefore, alters the insertion of the oblique muscles and the biomechanical relationship between the RA muscle and adjacent structures. The purposes of this study were to examine the effects of the TRAM flap surgery on muscle size of abdominal muscles, strength and endurance of trunk muscles, strength and endurance of core stability, as well as the effects of therapeutic exercises on it in post-mastectomy women underwent TRAM surgery.

Trial Health

100
On Track

Trial Health Score

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

Enrollment
82

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Feb 2009

Longer than P75 for not_applicable

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 24, 2009

Completed
5.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 8, 2014

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 8, 2014

Completed
6.7 years until next milestone

First Submitted

Initial submission to the registry

May 11, 2021

Completed
3 days until next milestone

First Posted

Study publicly available on registry

May 14, 2021

Completed
Last Updated

May 14, 2021

Status Verified

February 1, 2021

Enrollment Period

5.5 years

First QC Date

May 11, 2021

Last Update Submit

May 11, 2021

Conditions

Outcome Measures

Primary Outcomes (6)

  • Changes in thickness of abdominal wall muscles at 12-week

    Using the Ultrasound imaging to measure the thickness of all abdominal wall muscles at rest and in an isometric contraction.

    The assessments will be conducted 1 and 12 weeks following the intervention

  • Changes in the cross-sectional area of the rectus abdominis muscle (RA) muscle at 12-week

    Using the Ultrasound imaging to measure the cross-sectional area of the rectus abdominis muscle at rest and in an isometric contraction.

    The assessments will be conducted 1 and 12 weeks following the intervention

  • Changes in strength of the trunk muscles at 12-week

    Using the dynamometer and clinical tests (prone extension, curl-up and rotational curl-up) to measure the trunk strength

    The assessments will be conducted 1 and 12 weeks following the intervention

  • Changes in endurance of the trunk muscles at 12-week

    Using the clinical tests (abdominal muscle test for strength, unsupported double bend leg lifting for static endurance) to measure the endurance of trunk muscles

    The assessments will be conducted 1 and 12 weeks following the intervention

  • Changes in balanced functions at 12-week

    Using the seconds in the following static position to measure the balance: one-leg standing with the other lift-leg 1 inch of ground clearance; single leg standing with the other lift-leg hip flexion 90 degrees and the tibia vertical to the floor.

    The assessments will be conducted 1 and 12 weeks following the intervention

  • Changes in muscle activity of selected trunk and limb muscles at 12-week

    Using A six-camera Qualisys motion system to measure the muscle activity of selected trunk and limb muscles.

    The assessments will be conducted 1 and 12 weeks following the intervention

Study Arms (3)

TRAM abdominal muscle training group

EXPERIMENTAL

Patients were recruited at least 6 months after the muscle-sparing (MS) pedicled Transverse rectus abdominis musculocutaneous (TRAM) flap procedure and at least 1 month after the conclusion of the last chemotherapy course, if any. All subjects will receive 1-hr training sessions consisting of core stability exercises for 12 weeks for the TRAM group.

Behavioral: Abdominal muscle training

TRAM control group

NO INTERVENTION

Patients were recruited at least 6 months after the muscle-sparing (MS) pedicled Transverse rectus abdominis musculocutaneous (TRAM) flap procedure and at least 1 month after the conclusion of the last chemotherapy course, if any. The control group was not received any exercise program.

Healthy women group

NO INTERVENTION

A control group comprising female volunteers who were apparently healthy and had comparable socioeconomic backgrounds and physical conditions was recruited by convenience sampling from communities.

Interventions

Participants will receive 12-week, 60 minutes, 36-session abdominal muscle training in the TRAM women. Aimed to evaluate the effects on abdominal muscle functions after 12 weeks abdominal muscle training in the TRAM women. Outcome measures were the clinical tests for trunk muscle strength, endurance and one-leg standing was also used to exam the abdominal muscle function.

TRAM abdominal muscle training group

Eligibility Criteria

Age30 Years - 60 Years
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Healthy adults
  • Their age should be ranged between 30 - 60 years
  • TRAM flap surgery patients
  • at least 6 months after the MS pedicled TRAM flap surgery

You may not qualify if:

  • Healthy adults
  • a history of injury resulting in an inability to perform activities of daily living
  • scoliosis or spinal surgery
  • neurological, neuromuscular, rheumatological or systemic diseases
  • TRAM flap surgery patients
  • tumor distant metastasis
  • a history of injury resulting in an inability to perform activities of daily living
  • scoliosis or spinal surgery
  • neurological, neuromuscular, rheumatological or systemic diseases

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Breast Neoplasms

Condition Hierarchy (Ancestors)

Neoplasms by SiteNeoplasmsBreast DiseasesSkin DiseasesSkin and Connective Tissue Diseases

Study Officials

  • Li-Jiun Liaw

    Kaohsiung Medical University Department of Physical Therapy Associate Professor

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
OTHER
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 11, 2021

First Posted

May 14, 2021

Study Start

February 24, 2009

Primary Completion

September 8, 2014

Study Completion

September 8, 2014

Last Updated

May 14, 2021

Record last verified: 2021-02

Data Sharing

IPD Sharing
Will not share

Currently in the submission stage ,and then share with other researchers after publication