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Blood Flow Restriction With Aerobic Exercise in Frail Older Adults

Not Applicable
Not yet recruiting
Conditions
Rehabilitation
Interventions
Other: aerobic exercise combined with blood flow restriction
Other: aerobic exercise
Registration Number
NCT06155227
Lead Sponsor
National Cheng Kung University
Brief Summary

Background:Frailty is most often defined as a syndrome of physiological decline in late life, characterized by marked vulnerability to adverse health outcomes. Exercise intervention including aerobic exercise training has been proven to be effective in improving aerobic capacity and frail condition in elderly. Recently a novel training method using blood flow restriction (BFR) combined with aerobic exercise has shown positive effects on muscles strength and physical function in healthy elderly. This training method only required lower exercise intensity compared with traditional aerobic exercise to observe improvement. However, it is still unclear whether aerobic exercise training combined with BFR could also improve aerobic capacity and physical function in frail older adults. Therefore, the aim of this study will be to investigate the effect of aerobic exercise combined with BFR on cardiopulmonary function and functional activities in frail older adults.

Method: This study will be an assessor-blind randomized controlled trial.Participants aged over 65 years old with more than one item positive of Fried frailty phenotype assessment results will be recruited from the hospital and nearby communities. The participants will be randomly assigned to one of two training groups, aerobic exercise with BFR and only aerobic exercise. The exercise will be executed 30 minutes/session, three sessions/week for six weeks. Cardiopulmonary function and performance of functional activities will be assessed at pre-training, 3 weeks after training, post-training, and 3- and 6-week follow-up.

Detailed Description

Not available

Recruitment & Eligibility

Status
NOT_YET_RECRUITING
Sex
All
Target Recruitment
60
Inclusion Criteria
  • more than one positive item of Fried frailty phenotype assessment
  • able to walk more than 8 meters independently
  • can understand and follow more than three-step order
Exclusion Criteria
  • severe hypertension (>160/100 mmHg)
  • cardiovascular disease, such as myocardial infarction, New York Heart Association class III or IV heart failure, pulmonary hypertension
  • deep vein thrombosis or peripheral vascular disease
  • peripheral neuropathy due to diabetes
  • neuromuscular diseases, such as stroke, Parkinson's disease, etc.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Experimental Groupaerobic exercise combined with blood flow restriction-
Control Groupaerobic exercise-
Primary Outcome Measures
NameTimeMethod
Lower extremity muscle strengthAt six weeks after completing the training

Use an hand-held dynamometer to measure bilateral lower limb muscle strength

Pulmonary functionAt six weeks after completing the training

Pulmonary function includes tidal volume, vital capacity, forced vital capacity, and forced expiratory volume in one second

Timed up and go testAt six weeks after completing the training

This test measure the time taken by an individual to stand up from a chair , walk 3 meters, turn, walk back to the chair, and sit down

Walking speedAt six weeks after completing the training

Test the gait speed under preferred and maximum speed walking

2 minutes step testAt six weeks after completing the training

Number of steps completed in 2 min

6 minutes walking testAt six weeks after completing the training

Record the distance walked in 6 minutes

Secondary Outcome Measures
NameTimeMethod
Body compositionAt six weeks after completing the training

Use Inbody 270 to measure skeletal muscle mass of the whole body and the four extremities

Trial Locations

Locations (1)

Department of Physical Therapy

🇨🇳

Tainan city, Taiwan

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