NCT04448236

Brief Summary

This is a randomised controlled trial of the blood flow restriction resistance exercise (BFR-RE) for early rehabilitation of chronic obstructive pulmonary disease acute exacerbation (COPDAE) in the Haven of Hope Hospital. BFR-RE was invented by Dr. Yoshiaki Sato in Japan 40 years ago. This exercise was newly introduced to the Physiotherapy Department of Haven of Hope Hospital in March, 2020 and not a routine common training in Hospital Authority. However, currently the "BFR-device" is in its 3rd generation. Under the guidance of a certified physiotherapist, a "low load intensity" can be used for resistance training to build up muscle mass and strength by applying the device over the thigh to partially limit the blood flow to the distal limb. BFR-RE is well studied in athletes, elderlies and patients for rehabilitation after orthopaedics surgeries. A large amount of literature reveals BFR-RE with "low load intensity" shows comparable increase of muscle mass as "high load intensity" resistance training and more increase of muscle strength than those only undergoing "low load intensity" resistance training. The objective of this study is to investigate the additional effects of 2-week BFR-RE in patients with COPDAE on top of the conventional in-patient rehabilitation training. The primary outcome is effect on localized muscle strength. The secondary outcomes include mobility function, systemic muscle strength as reflected by handgrip strength(HGS), health related quality of life, unplanned readmission to acute hospital rate within 1 month for COPDAE.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
53

participants targeted

Target at P25-P50 for not_applicable chronic-obstructive-pulmonary-disease

Timeline
Completed

Started Jun 2020

Shorter than P25 for not_applicable chronic-obstructive-pulmonary-disease

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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

June 10, 2020

Completed
3 days until next milestone

First Submitted

Initial submission to the registry

June 13, 2020

Completed
12 days until next milestone

First Posted

Study publicly available on registry

June 25, 2020

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 9, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 9, 2020

Completed
3.5 years until next milestone

Results Posted

Study results publicly available

June 17, 2024

Completed
Last Updated

June 17, 2024

Status Verified

January 1, 2024

Enrollment Period

6 months

First QC Date

June 13, 2020

Results QC Date

December 21, 2021

Last Update Submit

January 4, 2024

Conditions

Keywords

muscle strengthCOPDAEBFRREisometric knee extension

Outcome Measures

Primary Outcomes (1)

  • Change of Maximal Voluntary Isometric Contraction (MVIC) of Knee Extension of the Dominant Leg in 3 Weeks

    To measure the change of the force-producing capabilities of a muscle group objectively during its isometric contraction condition which means muscle group under contraction with a constant velocity of joint motion and muscle length. Computer dynamometer will be used to measure the MVIC of the isometric knee extension of the dominant leg.

    baseline and 3 weeks (after 10-12 sessions of training)

Secondary Outcomes (9)

  • Change of Scores of Short Physical Performance Battery (SPPB) in 3 Weeks

    baseline and 3 weeks (after 10-12 sessions of training)

  • Change of Hand Grip Strength in 3 Weeks

    baseline and 3 weeks (after 10-12 sessions of training)

  • Change of Health Related Quality of Life in 3 Weeks

    baseline and 3 weeks (after 10-12 sessions of training)

  • Average Pain Score of Each Training

    pain score before, immediate and 5-minute post exercise;

  • Reasons of Drop-out of Blood Flow Restriction Resistance Exercise

    baseline to 3 weeks (after 10-12 sessions of training)

  • +4 more secondary outcomes

Study Arms (2)

BFR-RE intervention group

EXPERIMENTAL

The participants will have the standardised 2 week resistance training with "BFR-device" with details as follows: * Cuff size: medium * Restriction time: 5- 10 mins (stop after finishing 4 sets of training or terminating by Physiotherapists) * Applied location: alternate quadriceps in consecutive day * Applied pressure: 80% limb occlusion pressure (LOP)

Device: Blood flow restriction resistance exercise

Control group

NO INTERVENTION

Same standardized 2-week in-patient rehabilitation and same amount of the above-mentioned resistance training without the "BFR device".

Interventions

Application the "Blood flow restriction device" over the proximal thigh to have 80% of the limb occlusion pressure to accumulate the metabolite generated during knee extension

BFR-RE intervention group

Eligibility Criteria

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

You may qualify if:

  • COPD acute exacerbation (COPDAE) as the primary diagnosis for hospitalization or transfer to pulmonary wards of the Haven of Hope Hospital
  • Able to walk under supervision
  • Understand instruction in Cantonese and can give informed consent.

You may not qualify if:

  • Concomitant acute cardiac event
  • Severe hypertension (BP \> 180/100)
  • History of venous thromboembolism
  • History of peripheral vascular disease
  • Absence of posterior tibial or dorsalis pedal pulse
  • History of revascularization of the extremity
  • History of lymphectomies
  • Extremities with dialysis access
  • Vascular grafting
  • Current extremity infection
  • Active malignancy
  • Open fracture / soft tissue injuries
  • Amputation to the lower extremity
  • Expected hospitalization less than 2 weeks on admission
  • Medications known to increase clotting risks

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Haven of Hope Hospital

Hong Kong, Hong Kong

Location

Related Publications (22)

  • American College of Sports Medicine. American College of Sports Medicine position stand. Progression models in resistance training for healthy adults. Med Sci Sports Exerc. 2009 Mar;41(3):687-708. doi: 10.1249/MSS.0b013e3181915670.

    PMID: 19204579BACKGROUND
  • Brandner, C. R., May, A. K., Clarkson, M. J., & Warmington, S. A. Reported Side-effects and Safety Considerations for the Use of Blood Flow Restriction During Exercise in Practice and Research. Techniques in Orthopaedics. 2018; 33(2), 114-121.

    BACKGROUND
  • Centner C, Wiegel P, Gollhofer A, Konig D. Effects of Blood Flow Restriction Training on Muscular Strength and Hypertrophy in Older Individuals: A Systematic Review and Meta-Analysis. Sports Med. 2019 Jan;49(1):95-108. doi: 10.1007/s40279-018-0994-1.

    PMID: 30306467BACKGROUND
  • Cook SB, LaRoche DP, Villa MR, Barile H, Manini TM. Blood flow restricted resistance training in older adults at risk of mobility limitations. Exp Gerontol. 2017 Dec 1;99:138-145. doi: 10.1016/j.exger.2017.10.004. Epub 2017 Oct 5.

    PMID: 28987643BACKGROUND
  • Hughes L, Paton B, Rosenblatt B, Gissane C, Patterson SD. Blood flow restriction training in clinical musculoskeletal rehabilitation: a systematic review and meta-analysis. Br J Sports Med. 2017 Jul;51(13):1003-1011. doi: 10.1136/bjsports-2016-097071. Epub 2017 Mar 4.

    PMID: 28259850BACKGROUND
  • Manini TM, Clark BC. Blood flow restricted exercise and skeletal muscle health. Exerc Sport Sci Rev. 2009 Apr;37(2):78-85. doi: 10.1097/JES.0b013e31819c2e5c.

    PMID: 19305199BACKGROUND
  • Sato, Y. The history and future of KAATSU Training. International Journal of KAATSU Training Research. 2005; 1(1): 1-5.

    BACKGROUND
  • Swallow EB, Reyes D, Hopkinson NS, Man WD, Porcher R, Cetti EJ, Moore AJ, Moxham J, Polkey MI. Quadriceps strength predicts mortality in patients with moderate to severe chronic obstructive pulmonary disease. Thorax. 2007 Feb;62(2):115-20. doi: 10.1136/thx.2006.062026. Epub 2006 Nov 7.

    PMID: 17090575BACKGROUND
  • Van't Hul A, Harlaar J, Gosselink R, Hollander P, Postmus P, Kwakkel G. Quadriceps muscle endurance in patients with chronic obstructive pulmonary disease. Muscle Nerve. 2004 Feb;29(2):267-74. doi: 10.1002/mus.10552.

    PMID: 14755493BACKGROUND
  • Kroemer KH, Marras WS. Towards an objective assessment of the "maximal voluntary contraction" component in routine muscle strength measurements. Eur J Appl Physiol Occup Physiol. 1980;45(1):1-9. doi: 10.1007/BF00421195.

    PMID: 7191799BACKGROUND
  • Robles PG, Mathur S, Janaudis-Fereira T, Dolmage TE, Goldstein RS, Brooks D. Measurement of peripheral muscle strength in individuals with chronic obstructive pulmonary disease: a systematic review. J Cardiopulm Rehabil Prev. 2011 Jan-Feb;31(1):11-24. doi: 10.1097/HCR.0b013e3181ebf302.

    PMID: 20724932BACKGROUND
  • Bernabeu-Mora R, Medina-Mirapeix F, Llamazares-Herran E, Garcia-Guillamon G, Gimenez-Gimenez LM, Sanchez-Nieto JM. The Short Physical Performance Battery is a discriminative tool for identifying patients with COPD at risk of disability. Int J Chron Obstruct Pulmon Dis. 2015 Dec 3;10:2619-26. doi: 10.2147/COPD.S94377. eCollection 2015.

    PMID: 26664110BACKGROUND
  • Hicks RW, Denholm B. Implementing AORN recommended practices for care of patients undergoing pneumatic tourniquet-assisted procedures. AORN J. 2013 Oct;98(4):383-93; quiz 394-6. doi: 10.1016/j.aorn.2013.08.004.

    PMID: 24075334BACKGROUND
  • Kearon C, Ageno W, Cannegieter SC, Cosmi B, Geersing GJ, Kyrle PA; Subcommittees on Control of Anticoagulation, and Predictive and Diagnostic Variables in Thrombotic Disease. Categorization of patients as having provoked or unprovoked venous thromboembolism: guidance from the SSC of ISTH. J Thromb Haemost. 2016 Jul;14(7):1480-3. doi: 10.1111/jth.13336. Epub 2016 Jun 7. No abstract available.

    PMID: 27428935BACKGROUND
  • Jeong M, Kang HK, Song P, Park HK, Jung H, Lee SS, Koo HK. Hand grip strength in patients with chronic obstructive pulmonary disease. Int J Chron Obstruct Pulmon Dis. 2017 Aug 9;12:2385-2390. doi: 10.2147/COPD.S140915. eCollection 2017.

    PMID: 28848339BACKGROUND
  • Kanada Y, Sakurai H, Sugiura Y, Arai T, Koyama S, Tanabe S. Estimation of 1RM for knee extension based on the maximal isometric muscle strength and body composition. J Phys Ther Sci. 2017 Nov;29(11):2013-2017. doi: 10.1589/jpts.29.2013. Epub 2017 Nov 24.

    PMID: 29200647BACKGROUND
  • Loenneke JP, Wilson JM, Marin PJ, Zourdos MC, Bemben MG. Low intensity blood flow restriction training: a meta-analysis. Eur J Appl Physiol. 2012 May;112(5):1849-59. doi: 10.1007/s00421-011-2167-x. Epub 2011 Sep 16.

    PMID: 21922259BACKGROUND
  • van Melick N, Meddeler BM, Hoogeboom TJ, Nijhuis-van der Sanden MWG, van Cingel REH. How to determine leg dominance: The agreement between self-reported and observed performance in healthy adults. PLoS One. 2017 Dec 29;12(12):e0189876. doi: 10.1371/journal.pone.0189876. eCollection 2017.

    PMID: 29287067BACKGROUND
  • Patterson SD, Hughes L, Warmington S, Burr J, Scott BR, Owens J, Abe T, Nielsen JL, Libardi CA, Laurentino G, Neto GR, Brandner C, Martin-Hernandez J, Loenneke J. Blood Flow Restriction Exercise: Considerations of Methodology, Application, and Safety. Front Physiol. 2019 May 15;10:533. doi: 10.3389/fphys.2019.00533. eCollection 2019.

    PMID: 31156448BACKGROUND
  • Takeichi N, Ishizaka S, Nishiyama M, et al. Prediction of 1 repetition maximum strength from isometric strength using Hand-Held Dynamometer for the knee extenser. Gen Rehabil, 2012; 40: 1005-1009.

    BACKGROUND
  • Yu R, Ong S, Cheung O, Leung J, Woo J. Reference Values of Grip Strength, Prevalence of Low Grip Strength, and Factors Affecting Grip Strength Values in Chinese Adults. J Am Med Dir Assoc. 2017 Jun 1;18(6):551.e9-551.e16. doi: 10.1016/j.jamda.2017.03.006. Epub 2017 Apr 29.

    PMID: 28465129BACKGROUND
  • Lau CW, Leung SY, Wah SH, Yip CW, Wong WY, Chan KS. Effect on muscle strength after blood flow restriction resistance exercise in early in-patient rehabilitation of post-chronic obstructive pulmonary disease acute exacerbation, a single blinded, randomized controlled study. Chron Respir Dis. 2023 Jan-Dec;20:14799731231211845. doi: 10.1177/14799731231211845.

MeSH Terms

Conditions

Pulmonary Disease, Chronic Obstructive

Condition Hierarchy (Ancestors)

Lung Diseases, ObstructiveLung DiseasesRespiratory Tract DiseasesChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Results Point of Contact

Title
Dr. Lau Chung Wai
Organization
Haven of Hope hospital, Hospital Authority

Study Officials

  • chung wai LAU, MBBS

    Hospital Authority, Hong Kong

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
The Assessor for the primary outcome (maximum voluntary isometric contraction, MVIC) of knee extension, functional outcomes(6-minute walk test, Short Physical Performance Battery), will be blinded to the allocated study group.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Participants are randomized into one of the two treatment groups by drawing enclosed envelops which contain the random allocation of participants to intervention group (training with "BFR-device" and control group (training without the device). The envelopes are opened after inclusion for the individual participant only. Stratification of participants into two groups by maximum voluntary isometric contraction (MVIC) at baseline before randomization will be done. The cutoff for the stratification will be determined from the data in the recent service.
Sponsor Type
OTHER GOV
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal investigator

Study Record Dates

First Submitted

June 13, 2020

First Posted

June 25, 2020

Study Start

June 10, 2020

Primary Completion

December 9, 2020

Study Completion

December 9, 2020

Last Updated

June 17, 2024

Results First Posted

June 17, 2024

Record last verified: 2024-01

Data Sharing

IPD Sharing
Will not share

Locations