CClinicalTrials.gg
Status unknownNCT04206709Updated Dec 20, 2019

Influence of Single Session of Aerobic Exercise on Acute Pain and Function in Patients After Total Knee Replacement

An interventional study of aerobic effort and passive pedaling in Total Knee Replacement, sponsored by University of Haifa. Status unknown at 1 site in Israel. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-12-20.

Sponsored by University of Haifa · Not applicable, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Jul 2019), so the status shown — last known as Recruiting — may be out of date.
Phase
Not applicable
Study type
Interventional
Enrollment
40
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The purpose of this study is to examine the immediate effect of aerobic exercise effort on clinical and experimental pain, knee active range of motion and function in people after total knee replacement.

Read the detailed description

Total knee replacement is a prevalent orthopedic elective surgery in the Western world. After surgery, especially in the first two weeks, patients suffer from high degrees of pain that may lead to delayed recovery, increased risk to chronic pain and pain comorbidities, and may harm the knee function. In purpose to alleviate the pain, most patients tend to passive coping strategies which include the use of high levels of analgesics, including steroids, which may have accompanying side effects.

Aerobic activity is found to have a beneficial effect on pain threshold and pain tolerance in healthy subjects and in chronic pain syndromes. Researches indicate that single bout of aerobic effort increase pain threshold and pain tolerance and decrease pain severity for 15-30 minutes. Until now, the effect of a one-time aerobic effort has not been tested on subjects suffering from acute pain following surgical intervention.

This trail will examine the immediate effect of single aerobic effort on clinical and experimental pain, active knee range of motion and function among people with acute pain after total knee replacement.

40 subjects undergoing total knee replacement at the medical Center for Galilee as a result of Osteoarthritis in one of they knee, will be recruited to the study. The study will take place during the hospitalization in the 5th and 6th days after surgery. In those 2 days the subjects will participate in two meetings: in one session, the participants will be asked to perform active pedaling for 20 minutes in their upper limbs of a pulse that will be calculated approximately 60% of their maximum predictive pulse. in the second meeting the participants will perform passive training with their upper limbs for the same duration. The order of interventions will be randomly determined. Before and after the intervention, it will be examined by pain measures (pressure pain threshold, spontaneous pain perception and arousal pain by the Visual Analogue Scale (VAS) scale), at rest, in a sitting-standing-sitting transfers, while carrying an equal weight on both feet and while walking. the active range of motion of the operated knee, and functional measures - 10 Meters walk Test and Timed Up and Go test.

02

Conditions studied

  • Total Knee Replacement

Browse trials for

Keywords

  • exercise induced analgesia
03

In context

Acute Pain

876 studies on the registry are indexed under Acute Pain; 154 are open to participants now.

This study's planned enrollment of 40 is below the median of 90 across 732 interventional studies indexed under Acute Pain.

Browse Acute Pain studies →

Lead sponsor

University of Haifa is the lead sponsor of 101 studies on the registry; 25 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Candidates for unilateral total knee replacement surgery in the Department of Orthopedics 'A", at f the Galilee Medical Center.
  • 18 years and older.
  • Diagnosed with osteoarthritis.
  • Consent to participate in the trial.
  • Understand simple instructions.
  • Capable of walking with walking aid independently or supervised.
  • Allowed to perform medium-intensity aerobic exercise to-60% of their predicted maximum pulse.

Exclusion criteria

Exclusion Criteria:

* Individuals who have a physical limitation preventing them from performing active pedaling in upper limbs for 20 minutes.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Single (Investigator)
Enrollment
40 participants (estimated)

Study arms

  • Experimental
    aerobic effort

    Active upper limbs pedaling

    Procedure: aerobic effort

  • Sham comparator
    passive pedaling

    passive pedaling

    Other: passive pedaling

Interventions

  • Procedureaerobic effort

    Active upper limbs pedaling while maintaining a pulse calculated to be approximately 60% of the predicted maximum heart rate of each patient for 20 minutes.

  • Otherpassive pedaling

    20 minutes passive pedaling by upper limbs.

06

What researchers measure

Primary outcomes

  1. Pressure Pain Threshold (PPT)

    PPT examination by designated device

    Time frame: Change from Baseline PPT will be assessed right after the intervention

  2. Visual Analogue Scale (VAS)

    100mm VAS -A vertical VAS ruler with a slider indicator and a scale of 0-100 mm on the ruler's front side was used. the lower edge marked "0" and the upper edge marked "100". The back side of the ruler included a "happy" face figure at the lower edge representing "no pain" and a "sad" face at the upper edge representing "severe pain". Higher VAS scores equal more pain.

    Time frame: Change from Baseline VAS will be assessed right after the intervention

  3. 10 Meter Walk Test

    timed 10 meter walk test

    Time frame: Change from 10 meter walk test baseline outcome will be assessed right after the intervention

Secondary outcomes

  1. Knee Active Range of Motion (aROM)

    Goniometer measure

    Time frame: Change in aROM baseline will be assessed right after the intervention

  2. Timed Up and Go (TUG)

    Timed Up and Go test

    Time frame: Change from TUG test outcome will be assessed right after the intervention

07

Study locations

1 of 1 sites recruiting
  • Galilee Medical Center
    Nahariya, Israel
    • Noa Bezlael Katz · Contact
    Recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 20, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04206709
Lead sponsor
University of Haifa
Collaborators
Western Galilee Hospital-Nahariya
Responsible party
Sponsor
First posted
Dec 20, 2019
Start date
Jan 2020 (estimated)
Primary completion
May 2020 (estimated)
Completion
May 2020 (estimated)
Last update
Dec 20, 2019

Study contacts

Noa Katz-Betzalel
Contact
noakatzb@gmail.com
972-50-6534838
Einat Kodesh, PhD
Contact
ekodesh@univ.haifa.ac.il
972-523489854
Einat Kodesh, PhD
principal investigator · University of Haifa
Noa Katz-Betzalel
study director · Galilee Medical Center

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Jul 2019. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion