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RecruitingNCT06765486Updated Feb 26, 2025

Exercise-Induced Hypoalgesia Differences Between Upper and Lower Limbs Resistance Training Interventions

An interventional study of Lower limb resistance training and Upper limb resistance training in Local Hypoalgesia, Distal Hypoalgesia and Resistance Training, sponsored by Centro Universitario La Salle. Recruiting at 1 site in Spain. Open to participants aged 18 Years to 64 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-02-26.

Sponsored by Centro Universitario La Salle · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by May 2025, 1 year 5 months ago, but the record still lists the study as recruiting.
  • Started Feb 2025; still recruiting 1 year 8 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
90
Allocation
Randomized
Ages
18 Years to 64 Years
Sex
All
01

Study summary

This randomized controlled trial with healthy subjects aims to compare exercise-induced hypoalgesia among three groups: one utilizing a lower limb resistance training intervention, another using an upper limb resistance training, and a control group. The exercise protocol involves 3 sets of 5 repetitions of resistance exercises (brachial biceps curl and leg extensions). Exercise-induced hypoalgesia will be assessed by measuring pressure pain thresholds in the thigh and elbow, comparing exercise interventions with the control group. Additionally, a secondary objective is to compare the lower limb and upper limb resistance training groups in terms of their effects on pressure pain thresholds in the thigh and elbow. Thus, the study anticipates observing differences in local and distal hypoalgesia based on the trained region.

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Conditions studied

  • Local Hypoalgesia
  • Distal Hypoalgesia
  • Resistance Training
  • Pressure Pain Thresholds

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03

In context

Pain

10,054 studies on the registry are indexed under Pain; 1,649 are open to participants now.

This study's planned enrollment of 90 is above the median of 66 across 8,493 interventional studies indexed under Pain.

Browse Pain studies →

Lead sponsor

Centro Universitario La Salle is the lead sponsor of 25 studies on the registry; 7 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 64 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Asymptomatic subjects aged between 18 and 64 years.

Exclusion criteria

Exclusion Criteria:

  • Cardiovascular, respiratory, metabolic, neurological, or osteomuscular signs or pathologies.
  • History of epilepsy.
  • Pregnant.
  • Participants who present any type of pain on the day of the measurements or who have frequently suffered pain during the previous 12 weeks.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
90 participants (estimated)

Study arms

  • Experimental
    Lower limb resistance training

    The participants in the lower limb resistance training group will undergo 3 sets of 5 repetitions of leg extensions with the 5-resistance maximum (5RM), comprising a 5-minute warm-up in cycle ergometer at 1 watt per kg and 60-80 revolutions per minute and 1 set of 5 repetitions with the 10-resistance maximum (10RM).

    Other: Lower limb resistance training

  • Experimental
    Upper limb resistance training

    The participants in the upper limb resistance training group will undergo 3 sets of 5 repetitions of brachial biceps curl with the 5RM, comprising a 5-minute warm-up in cycle ergometer at 1 watt per kg and 60-80 revolutions per minute and 1 set of 5 repetitions with the 10RM.

    Other: Upper limb resistance training

  • No intervention
    Control

    Participants in the control group will remain seated for the entire duration of the experiment without receiving any form of distraction.

Interventions

  • OtherLower limb resistance training

    Exercise intervention with leg extensions on the dominant quadriceps, doing 3 sets of 5 repetitions with the 5RM after a 5-minute warm-up with a cycle ergometer at 1 watt per kg and 60-80 revolutions per minute and 1 set of 5 repetitions with the 10RM. Previously, 72 hours before, the 5RM would have been calculated progressively approaching in sets of 5 repetitions, starting with the lower weight and stopping the test when obtaining an unsuccessful trial (the participant could not manage to lift the weight five times). The previous successful set would be established as the 5RM.

  • OtherUpper limb resistance training

    Exercise intervention with brachial biceps curl on the dominant brachial biceps, doing 3 sets of 5 repetitions with the 5RM after a 5-minute warm-up with a cycle ergometer at 1 watt per kg and 60-80 revolutions per minute and 1 set of 5 repetitions with the 10RM. Previously, 72 hours before, the 5RM would have been calculated progressively approaching in sets of 5 repetitions, starting with the lower weight and stopping the test when obtaining an unsuccessful trial (the participant could not manage to lift the weight five times). The previous successful set would be established as the 5RM.

06

What researchers measure

Primary outcomes

  1. Pain pressure threshold (PPT) on dominant quadriceps and dominant brachial biceps

    PPT is tested on the muscle belly of the quadriceps on the dominant side, at half of the distance between the anterior-superior iliac spine and the superior pole of the patella, and on the muscle belly of the brachial biceps on the dominant side, at a point one-fourth of the distance from the elbow crease to the lateral border of the acromion. The region to be pressed is marked with a pen. The patient is instructed to report the first appearance of the sensation of "discomfort". An ascending ramp of 0.5 kg/cm/s is applied, at the rhythm of a metronome. The instrument measures 0 to 25 kg, with a higher score interpreted as a hypoalgesia response. The measurement is started on the quadriceps and alternated with the biceps until 3 measurements of each region are obtained. Each measurement in the same region is obtained after 30 seconds of rest. This protocol has demonstrated high inter-observer reliability measuring healthy subjects (ICC = 0.91).

    Time frame: before, immediately after intervention, and 30 minutes after intervention.

Secondary outcomes

  1. International Physical Activity Questionnaire (IPAQ)

    7-item questionnaire on the level of physical activity at different intensities (high, moderate, and low) and hours sitting. A higher score means higher weekly physical activity

    Time frame: before intervention (up 5 minutes)

  2. Physical Activity Readiness Questionnaire (PAR-Q)

    7-item questionnaire that assesses an individual's readiness to engage in physical activity based on whether any known contraindications have been ruled out by the participant. If all the questions are negative, the participant can safely engage in a physical activity.

    Time frame: before intervention (up 5 minutes)

  3. Fatigue Assessment Scale (FAS)

    10-item questionnaire that allows for the evaluation of the participant's current level of fatigue. This instrument measures 10 to 50 points. A higher score means higher fatigue.

    Time frame: before intervention (up 5 minutes)

  4. Rate of perceived exertion (RPE)

    RPE Borg CR-10 is used to measure how hard your body works during physical activity. It runs from 0 - 10, using numbers to rate how much effort an activity takes. Higher scores indicate a higher perception of effort.

    Time frame: immediately after intervention (up 10 seconds)

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Study locations

1 of 1 sites recruiting
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References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Feb 2025 (actual). Primary completion is estimated for May 2025, 3 months after the start.

Of 3,731 non-industry interventional studies with no phase under Pain, half reached primary completion within 10 months of starting (the median), counting those still running; a quarter within 4 and three quarters within 23. This study's planned 3 months is below that.

Counting every sponsor, half of 3,830 studies reached it within 10 months; a quarter within 4 and three quarters within 23.

How these figures are worked out, and which studies are left out of them.

Registered
Jan 3, 2025
First posted
Jan 9, 2025
StartActual
Feb 15, 2025
Primary completionEst.
May 20, 2025
CompletionEst.
Jun 1, 2025
Last update
Feb 26, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Feb 26, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT06765486
Lead sponsor
Centro Universitario La Salle
Responsible party
Álvaro Reina Varona (Principal Investigator, Centro Universitario La Salle) — Principal investigator
First posted
Jan 9, 2025
Start date
Feb 15, 2025
Primary completion
May 20, 2025 (estimated)
Completion
Jun 1, 2025 (estimated)
Last update
Feb 26, 2025

Study contacts

Álvaro Reina-Varona, MSc
Contact
alvaro.reina@lasallecampus.es
(+34) 91 740 19 80 ext. 506

Oversight

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

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