Exercise-Induced Hypoalgesia Differences Between Upper and Lower Limbs Resistance Training Interventions
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-64
SponsorCentro Universitario La Salle
About this trial
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.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Asymptomatic subjects aged between 18 and 64 years.
Disqualifiers
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.
Trial design
Design model
Parallel
Treatments tested in this trial
Lower limb resistance training
Other interventionExercise 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.
Upper limb resistance training
Other interventionExercise 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.
Treatment groups
90 Participants
are divided into 3 treatment groupsGroup A: Lower limb resistance trainingExperimental treatment 1 intervention
Group B: Upper limb resistance trainingExperimental treatment 1 intervention
Group C: ControlNo intervention 0 interventions
Trial outcomes
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)Sponsors and contacts
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Source ClinicalTrials.gov