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Simple ankle-weight exercises may boost recovery after knee replacement

NCT ID NCT07696195

Disease control Sponsor: Tzu Chi University Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jul 10, 2026 · Last updated Jul 10, 2026

Summary

This study tests whether a three-month resistance training program using ankle weights can improve leg strength, balance, pain, and quality of life in people who have had knee replacement surgery for osteoarthritis. Twenty-four participants are randomly assigned to either the resistance training group or standard postoperative care. The goal is to see if adding structured resistance exercises to routine recovery helps people regain function faster.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Progressive lower extremity resistance exercise using ankle weights
What this could lead to
If effective, this resistance training program could become a standard part of postoperative care to help people recover strength and mobility faster after knee replacement surgery.
What could go wrong
This is a small pilot study with only 24 participants, so results may not apply to everyone. The program requires commitment to three weekly sessions for three months, and some people may find the exercises too challenging or painful.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

24 people

The number who actually took part.

Started

Mar 2025

Finished

Aug 2025

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

Children (under 18), adults (18 to 64) and older adults (65 and over)

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Diagnosis of osteoarthritis requiring first-time unilateral lower limb total joint arthroplasty * No planned surgery on the contralateral limb * Clear consciousness and ability to communicate in Mandarin or Taiwanese * Independent ambulation before surgery * Adequate vision and hearing (with correction if needed) * Community-dwelling status * Willing to participate in this study Exclusion Criteria: * Inability to ambulate independently * Medical contraindications to exercise * Severe musculoskeletal conditions other than osteoarthritis * Same-day admission and surgery * Bilateral joint arthroplasty

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Conditions

The condition(s) this trial relates to.

osteoarthritis osteoarthritis, knee

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Osteoarthritis Osteoarthritis,knee

Contacts and locations

Locations

  • Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation

    Hualien City, Taiwan, 97060, Taiwan

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