Cross-education of Skill and Strength in Healthy People Subjected to an Upper-limb Disuse Model (IMMO-CROSS)
Cross-education of Skill and Strength Through Contralateral Manual Dexterity Training in Healthy Young Adults Subjected to an Upper-limb Disuse Model: A Randomized Controlled Trial.
Studie Overzicht
Toestand
Toestand
Conditie
Conditie
Interventie / Behandeling
Interventie / Behandeling
Gedetailleerde beschrijving
Studietype
Studietype
Inschrijving (Geschat)
Inschrijving
Fase
Fase
- Niet toepasbaar
Contacten en locaties
Studiecontact
Studiecontact
- Naam: Iván A. Cuyul-Vásquez, PhD(c)
- Telefoonnummer: +56452205205
- E-mail: icuyul@uct.cl
Studie Locaties
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Araucania
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Temuco, Araucania, Chili, 4813302
- UCT, Facultad de ciencias de la Salud
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Contact:
- Iván A. Cuyul-Vásquez, PhD(c)
- Telefoonnummer: +56452205205
- E-mail: icuyul@uct.cl
-
Contact:
- Cuyul-Vásquez Iván Cuyul-Vásquez, PhD(C)
- Telefoonnummer: +56452205205
- E-mail: icuyul@uct.cl
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Deelname Criteria
Geschiktheidscriteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Volwassen
Accepteert gezonde vrijwilligers
Beschrijving
Inclusion Criteria:
- Individuals will be eligible for inclusion if they are right-handed adults aged 18 to 35 years with a body mass index (BMI) between 18.5 and 30 kg/m².
- Individuals must be classified as physically inactive, defined as not meeting the World Health Organization criteria of at least 150 minutes of moderate-intensity physical activity or 75 minutes of vigorous-intensity physical activity per week.
Exclusion Criteria:
- Individuals who have engaged in physical training (e.g., any form of strength or aerobic exercise) or specific manual dexterity training within the past 6 months. - Individuals who regularly participate in artistic, occupational, or sporting activities requiring high levels of manual dexterity (e.g., musicians, gamers, craftspeople).
- Individuals with a history of orthopedic or traumatic injuries affecting either upper extremity. Individuals with pathologies or conditions that preclude safe training (e.g., uncontrolled hypertension, or visual, auditory, or cognitive impairments [for example, dyscalculia]).
- Individuals currently using nutritional supplements or medications that interfere with the regulation of skeletal muscle mass and strength (e.g., whey protein, creatine) or the central nervous system (e.g., antidepressants, anxiolytics, hypnotics).
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Behandeling
- Toewijzing: Gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Dubbele
Aantal wapens
Wapens en interventies
Deelnemersgroep / ArmDeelnemersgroep / Arm |
Interventie / BehandelingInterventie / Behandeling |
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Experimenteel: Contralateral manual dexterity training
Participants in the experimental group will perform contralateral manual dexterity training focused on moving 0.5, 1.0, or 1.5 kg cylinders using different grips and movements across various planes on a gridded board.
Participants will execute various grips to place the cylinders into the quadrants indicated on a smartphone screen.
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The subjects in the experimental group will perform contralateral manual dexterity training focused on moving cylinders of 0.5, 1 or 1.5 kilos with grips and movements in different planes on a gridded board.
Participants will have to develop different grips and place the cylinders in the quadrants indicated on a smartphone screen.
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Geen tussenkomst: Control group without intervention
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Wat meet het onderzoek?
Primaire uitkomstmaten
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Fine Manual Dexterity
Tijdsspanne: Baseline and day 7
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Fine manual dexterity will be assessed using the Functional Dexterity test (FDT).
Using a stopwatch, the evaluator records the total time in seconds that the participant takes to complete the task.
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Baseline and day 7
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Force control
Tijdsspanne: Baseline and day 7
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In a seated position with the elbow flexed, participants will perform isometric contractions to reach a target torque guided by real-time visual feedback.
The accuracy of maintaining these contractions in the wrist flexor and extensor muscles will be assessed using a Humac Norm isokinetic dynamometer (Computer Sports Medicine, Inc., Stoughton, MA, USA).
Participants will perform a continuous 60-second isometric contraction exercise.
During this period, participants will adjust their force level to between 10% and 30% of their maximum voluntary contraction (MVC) at 10-second intervals.
Three attempts will be performed per limb.
The Root Mean Square Error (RMSE) will be recorded.
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Baseline and day 7
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Gross Manual Dexterity
Tijdsspanne: Baseline and day 7
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This gross manual dexterity will be assessed using the same task performed during the experimental group's contralateral manual dexterity training.
Specifically, participants will complete 15 trials, moving cylinders of varying weights across a gridded board following a sequence displayed on a smartphone.
The time required to complete these 15 trials will be recorded.
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Baseline and day 7
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Secundaire uitkomstmaten
Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Handgrip strength
Tijdsspanne: Baseline and day 7
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Maximum lumbrical and cylindrical grip strength will be assessed using a Jamar Plus+ digital hand dynamometer.
The highest value from three attempts will be recorded for each assessment
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Baseline and day 7
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Joint Position Sense Test
Tijdsspanne: Baseline and day 7
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Proprioception: Wrist flexion-extension joint position sense will be assessed using the Joint Position Sense Test (JPST).
All measurements will be conducted with a Humac Norm isokinetic dynamometer (Computer Sports Medicine, Inc., Stoughton, MA, USA).
Three attempts will be made per limb.
The absolute error (difference in degrees between 30° and the angle achieved during the test) will be recorded.
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Baseline and day 7
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Left/right judgment
Tijdsspanne: Baseline and day 7
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Left/right judgment will be assessed using the Recognise™ application (Noigroup, Adelaide, Australia).
Performance on the laterality judgment task was quantified using the Inverse Efficiency Score (IES), calculated as the average reaction time of correct responses divided by the proportion of correct responses (IES = RT / PC). 3 blocks of 20 images (60 images total).
Maximum exposure time: 5 seconds per image.
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Baseline and day 7
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Andere uitkomstmaten
Andere uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Physical activity level
Tijdsspanne: Baseline and day 7
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Weekly metabolic equivalents (MET-min/week) will be calculated using the validated Spanish version of the Global physical activity questionnaire (GPAQ).
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Baseline and day 7
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Psychological Distress
Tijdsspanne: Baseline
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Psychological Distress, including symptoms of depression, anxiety, and stress, will be assessed using the 21-item Depression, Anxiety and Stress Scale (DASS-21).
This self-report instrument will be used to quantify the severity of emotional distress across these three domains.
This scale has a minimum score of 0 and a maximum of 126 points (total score calculated by doubling the sum of the 21 items).
Higher scores in DASS-21 indicate greater psychological distress.
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Baseline
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Sleep Quality:
Tijdsspanne: Baseline
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Sleep disturbances and overall sleep quality will be assessed using the Pittsburgh Sleep Quality Index (PSQI).
This scale has a minimum score of 0 and a maximum of 21 points (higher scores indicate worse sleep quality)
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Baseline
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Daily steps
Tijdsspanne: During 7 days of immobilization
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Physical activity will be monitored using a Xiaomi Band 9 smartwatch (number of daily steps), which participants will wear throughout the seven-day mobilization period.
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During 7 days of immobilization
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Sleep time
Tijdsspanne: During 7 days of immobilization
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Sleep time will be measured using a Xiaomi Band 9 smartwatch (hours), which participants will wear throughout the seven-day immobilization period.
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During 7 days of immobilization
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Medewerkers en onderzoekers
Sponsor
Sponsor
Medewerkers
Medewerkers
Studie record data
Bestudeer belangrijke data
Studie start (Geschat)
Studie start
Primaire voltooiing (Geschat)
Primaire voltooiing
Studie voltooiing (Geschat)
Studie voltooiing
Studieregistratiedata
Eerst ingediend
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Eerst geplaatst
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update geplaatst
Laatste update ingediend die voldeed aan QC-criteria
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
Andere studie-ID-nummers
- INMO-CROSS-2026
Plan Individuele Deelnemersgegevens (IPD)
Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?
Informatie over medicijnen en apparaten, studiedocumenten
Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel
Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct
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