NCT04546048

Brief Summary

Liver transplantation (LT) is a current life-saving procedure performed as an open-abdominal surgery for patients with end-stage liver diseases (ESLD). However, a high risk of post-surgical complications is relevant to major intra-abdominal interventions. In managing post-LT recovery, it is important to consider the extending pre-transplant physical status of ESLD patients concerning an impaired exercise capacity, a prolonged period of deconditioning, fatigue and muscle weakness, which leads to global motor impairment and decreased functional capacity. Sarcopenia and physical deconditioning are known as the hallmark features of ESLD. The quality and the quantity of skeletal muscle mass have been closely correlated with post-transplantation mortality in individuals undergoing LT. In addition to chronic deconditioning or myopathy related to chronic liver failure, post-transplant immunosuppressive medication contributes to increased risk for age-related decline in muscular strength and physical ability. It reportedly persists impaired physical function including reduced muscle strength, which have been consistently associated with impaired quality of life after a liver transplant. Exercise interventions in solid-organ recipients provide improvements in physical function including skeletal muscle strength. The literature has defined many types of exercise-based interventions including aerobic and resistive training or physical activity counselling in improving physical performance tasks, muscle strength and physical domain of quality of life in postoperative liver transplanted adults. Although there are studies in improving muscle performance and functional status, no study conducted in the post-transplant early period and an optimal exercise regimen for post-liver recipients. In the present study, it will be provided a framework for a possible change in practice aiming to improve muscle strength and functionality in liver recipients through a strength training exercise intervention at the early post-transplant period. The purposes of this trial were: 1) to evaluate the feasibility and safety of a strength exercise training program on functional mobility and quality of life of liver transplanted individuals and 2) to initiate physiotherapy protocols in this population. A key component of this approach was that it was individualized, providing one-to-one therapy with tailored progression specific to a person's individual mobility goals.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
30

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Sep 2018

Geographic Reach
1 country

1 active site

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

September 19, 2018

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 24, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 24, 2019

Completed
1 year until next milestone

First Submitted

Initial submission to the registry

September 6, 2020

Completed
5 days until next milestone

First Posted

Study publicly available on registry

September 11, 2020

Completed
Last Updated

November 20, 2020

Status Verified

November 1, 2020

Enrollment Period

11 months

First QC Date

September 6, 2020

Last Update Submit

November 18, 2020

Conditions

Keywords

muscle strengthliver transplantationresistance trainingfunctional status

Outcome Measures

Primary Outcomes (4)

  • Respiratory muscle strength

    The measurement of the maximal inspiratory and expiratory pressures were measured during a maximal effort for 3 times. The highest value was recorded as cmH2O and also expressed as a percentage of predicted normal values.

    baseline (pre-operative), 4th and 8th post-operative week

  • Peripheral muscle strength

    Knee extension, shoulder flexion and abduction were assessed with a handheld dynamometer. Three maximal isometric contractions are performed. The highest value during the preserved max tension for 1 s was recorded in kg.

    baseline (pre-operative), 4th and 8th post-operative week

  • Physical performance

    30-s Sit-to-Stand Test (STST) provided the number of stands completed with the arms folded across the chest in 30 s. Each functional test was performed twice, in a standardized order, with a 5-min resting period and the best score was recorded.

    baseline (pre-operative), 4th and 8th post-operative week

  • Functional exercise capacity

    Functional exercise capacity was determined by 6-minute walk test (6MWT). The distance covered in 6 minutes along a 30-meters corridor was recorded in meters (6MWD). The predicted 6MWD is calculated using the reference equations.

    baseline (pre-operative), 4th and 8th post-operative week

Secondary Outcomes (2)

  • Fatigue

    baseline (pre-operative), 4th and 8th post-operative week

  • Health-related Quality of Life

    baseline (pre-operative), 4th and 8th post-operative week

Study Arms (2)

Exercise group (EG)

EXPERIMENTAL

The exercise group (EG) were received an 8-week resistance training program in addition to standard post-transplant physiotherapy follow-up.

Behavioral: Strength Exercise Training

Control Group (CG)

NO INTERVENTION

The control group (CG) were received only standard physiotherapy program. The usual post-transplant care consisting of preoperative patient education, respiratory physiotherapy program, active/active assistive exercises of cervical, upper and lower extremities, and early mobilization. Patients were instructed about the postoperative physiotherapy process including all details within the preoperative education. Respiratory physiotherapy consisted of positioning, lung expansion exercises and bronchial hygiene techniques. They were allowed to pursue their normal daily activities and mobilized as early as possible when clinically stable.

Interventions

The 8-week exercise-training program consisted of two 30-min sessions a day for 5 days/week and conducted by elastic exercise bands in 2-3 sets, 6-10 repetitions, with 1-2 min rest between sets (M. Deltoideus and M. Quadriceps are trained as major muscle groups). The 8-repetition maximum(8RM) is used to determine training loads with the rated perceived exertion(RPE) lower than 5-7 on the Modified Borg scale(MBS). The program consisted functional exercises by half squat to squat and sit-to-stand chair exercises. Exercise sessions were supervised twice daily during the 1st week, the 2nd week training included one supervised and one unsupervised daily sessions. The remaining 6-week training program conducted at home individually after discharge. Patients instructed for the ongoing 8-week training program and a patient-specific schedule delivered to subjects. Phone calls are provided weekly and training load is assessed while generating 4th week evaluations.

Also known as: Resistance Training
Exercise group (EG)

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Liver recipients were eligible to participate if they were 1) over 18 years old, 2) completed the pre-operative evaluation procedure, 3) post-op hemodynamically stabled and had spontaneous breathing, 4) able to read, write and understand Turkish language.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Memorial Hospital Groups

Istanbul, Turkey (Türkiye)

Location

MeSH Terms

Conditions

End Stage Liver DiseaseMuscular AtrophyMuscle WeaknessSarcopeniaFatigue

Interventions

Resistance Training

Condition Hierarchy (Ancestors)

Liver FailureHepatic InsufficiencyLiver DiseasesDigestive System DiseasesNeuromuscular ManifestationsNeurologic ManifestationsNervous System DiseasesAtrophyPathological Conditions, AnatomicalPathological Conditions, Signs and SymptomsSigns and SymptomsMuscular DiseasesMusculoskeletal DiseasesPathologic Processes

Intervention Hierarchy (Ancestors)

Exercise TherapyRehabilitationAftercareContinuity of Patient CarePatient CareTherapeuticsPhysical Therapy ModalitiesPhysical Conditioning, HumanExerciseMotor ActivityMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological Phenomena

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
MSc

Study Record Dates

First Submitted

September 6, 2020

First Posted

September 11, 2020

Study Start

September 19, 2018

Primary Completion

August 24, 2019

Study Completion

August 24, 2019

Last Updated

November 20, 2020

Record last verified: 2020-11

Locations