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Does soreness after exercise disrupt sleep more for people with insomnia?

NCT ID NCT07826650

Knowledge-focused Sponsor: The Hong Kong Polytechnic University Source: ClinicalTrials.gov ↗

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Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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
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Expanded access (paused)
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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

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Status unknown
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First seen Sep 17, 2026 · Last updated Sep 18, 2026 · Updated 1 time

Summary

Researchers at The Hong Kong Polytechnic University are studying whether acute muscle pain from exercise changes sleep differently in people with insomnia compared to healthy sleepers. The study enrolls 80 adults aged 18 to 60, split into two groups: those with clinical insomnia and age- and sex-matched healthy controls. Both groups do a standard eccentric hamstring exercise to safely induce temporary soreness. Participants wear wrist actigraphy devices and keep sleep diaries before and after the soreness begins, so researchers can compare objective and subjective sleep measures and pain sensitivity between the two groups.

What this could mean

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

Active substance
eccentric hamstring exercise to induce temporary muscle soreness
What this could lead to
If the study finds that people with insomnia react differently to acute pain, it could shape future research into pain and sleep treatments for that group.
What could go wrong
This is a small, short-term study of 80 people. It measures sleep over a brief period after one exercise session, so it cannot show long-term effects or prove cause and effect.

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.

Participants

About 80 people

The number the study aims to enrol. It can still change while the study runs.

Started

Aug 2026

Expected to finish

Aug 2027

An estimate. End dates often move.

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.

Who is studied

Healthy Adult with or without insomnia

Ages

18 to 60 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Adults aged 18 to 60 years * Right-hand and right-foot dominant Exclusion Criteria: * History of any chronic musculoskeletal pain or presence of existing pain during recruitment * Previous major injuries or surgery involving the lower limbs * Sleep disorders other than insomnia * Clinically diagnosed psychiatric disorders * Contraindications to vigorous exercise identified through the physical activity readiness questionnaire (PAR-Q) * Work night shifts or rotating shift schedules * Pregnant

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Conditions

The condition(s) this trial relates to.

insomnia Musculoskeletal Pain sleep disorder

As listed by the trial registrant

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

Healthy adult Insomnia Musculoskeletal pain Sleep

How to take part

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  1. The places running it

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  2. The official record

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Contacts and locations

Locations

  • the Hong Kong Polytechnic University

    RECRUITING

    Hong Kong, Hong Kong

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