Upper Versus Lower Limb Responses to Higher Versus Lower Load Resistance Training in Young Men
Variability in Resistance Training-induced Hypertrophy and Strength Are Independent of Load and Limb Location in Healthy Young Men
Studie Overzicht
Toestand
Toestand
Conditie
Conditie
Interventie / Behandeling
Interventie / Behandeling
Gedetailleerde beschrijving
Each participant will come to the Exercise Metabolism Research Laboratory gym three times per week for 10 weeks to perform lower- and upper-body resistance exercise training with both relatively heavy- (~80% one repetition maximum [1RM]) and light- (~40 %1RM) loads. One arm and one leg will be randomized to lift with relatively heavy loads such that the other arm and leg will be randomized to lift with relatively light loads. Each workout will be supervised by a study investigator.
The time commitment of this study is 12 weeks (including pre- and post-study testing). Each workout to take 30 minutes and, with testing days included, the investigators foresee a total time commitment of 41 hours, or just under three and half hours per week.
The pre- and post-study measurements include muscle biopsies, dual x-ray absorptiometry scans, ultrasonography scans, 1RM assessment, and maximum voluntary contraction assessment. The muscle biopsies will be taken from each of the participant's vastus lateralis to assess muscle fibre cross sectional area in both legs during the beginning (four biopsies) and end (four biopsies) of the intervention. The dual x-ray absorptiometry scans are used to assess body composition and will be done pre- and post-intervention. The ultrasonography scans will be used to assess biceps brachii and vastus laterals thickness and cross sectional area. The ultrasound scans will be assessed during the beginning (four scans) and end (four scans) of the intervention. The 1RM assessment will include 1RM testing on a knee extension machine and biceps curl machine and will be done at the beginning and end of the intervention. The maximum voluntary contraction assessment will be performed on a System 3 Biodex Dynamometer (Shirley, NY, USA), which is an immovable machine that the participants contract against to measure their peak force. The maximum voluntary contractions will be recorded three times: twice at the beginning of the intervention and once at the end of the intervention.
Studietype
Studietype
Inschrijving (Werkelijk)
Inschrijving
Fase
Fase
- Niet toepasbaar
Contacten en locaties
Studie Locaties
-
-
Ontario
-
Hamilton, Ontario, Canada, L8S 4K1
- Exercise Metabolism Research Laboratory, McMaster Univeristy
-
-
Deelname Criteria
Geschiktheidscriteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
Inclusion Criteria:
- Be between the ages of 18-30 years (inclusive)
- Be able to maintain a habitual diet and perform resistance exercise three times per week throughout the trial
- Be in general good health (assessed by Get Active Questionnaire)
- Understand the study procedures and sign this form providing informed consent to participate in the study.
Exclusion Criteria:
- Use of tobacco or related products
- A history of neuromuscular problems or muscle and/or bone wasting diseases
- Any acute or chronic illness; cardiac, pulmonary, liver, or kidney abnormalities; insulin- or non-insulin-dependent diabetes or other metabolic disorders (all ascertained through medical questionnaires)
- Use of medications known to affect protein metabolism (i.e. corticosteroids, non-steroidal anti-inflammatory drugs (prescription use or daily use of over the counter medication), or prescription strength acne medications)
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Fundamentele wetenschap
- Toewijzing: Gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Enkel
Aantal wapens
Wapens en interventies
Deelnemersgroep / ArmDeelnemersgroep / Arm |
Interventie / BehandelingInterventie / Behandeling |
|---|---|
|
Experimenteel: Higher Load
One arm and one leg were randomized (based on limb dominance) to perform unilateral biceps curls (arm) and knee extensions (leg) with relatively higher loads (80 % of their one-repetition maximum).
|
The participants performed three sets of their unilateral resistance exercise (biceps curls and knee extensions) three times per week for 10 weeks.
|
|
Experimenteel: Lower Load
The other arm and leg were randomized (based on limb dominance) to perform unilateral biceps curls (arm) and knee extensions (leg) with relatively higher loads (80 % of their one-repetition maximum).
|
The participants performed three sets of their unilateral resistance exercise (biceps curls and knee extensions) three times per week for 10 weeks.
|
Wat meet het onderzoek?
Primaire uitkomstmaten
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
Change in fat-free mass
Tijdsspanne: up to 12 weeks
|
Measured by dual x-ray absorptiometry pre- and post-training
|
up to 12 weeks
|
|
Change in vastus lateralis thickness
Tijdsspanne: up to 12 weeks
|
Measured by ultrasonography pre- and post-training
|
up to 12 weeks
|
|
Change in vastus lateralis cross sectional area
Tijdsspanne: up to 12 weeks
|
Measured by ultrasonography pre- and post-training
|
up to 12 weeks
|
|
Change in biceps brachii thickness
Tijdsspanne: up to 12 weeks
|
Measured by ultrasonography pre- and post-training
|
up to 12 weeks
|
|
Change in biceps brachii cross sectional area
Tijdsspanne: up to 12 weeks
|
Measured by ultrasonography pre- and post-training
|
up to 12 weeks
|
|
Change in muscle fibre cross sectional area
Tijdsspanne: up to 12 weeks
|
Measured by muscle biopsies from the vastus lateralis pre- and post-training
|
up to 12 weeks
|
Medewerkers en onderzoekers
Sponsor
Sponsor
Onderzoekers
Onderzoekers
- Hoofdonderzoeker: Stuart Phillips, PhD, McMaster University
Studie record data
Bestudeer belangrijke data
Studie start (Werkelijk)
Studie start
Primaire voltooiing (Werkelijk)
Primaire voltooiing
Studie voltooiing (Werkelijk)
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
- HIREB 4774
Plan Individuele Deelnemersgegevens (IPD)
Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?
Beschrijving IPD-plan
Informatie over medicijnen en apparaten, studiedocumenten
Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel
Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct
Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .
Klinische onderzoeken op Spierkracht
-
NCT05344391WervingCan BFR Cycling Augment Strength en VO2peak
Klinische onderzoeken op Unilateral resistance exercise
-
NCT07490977Nog niet aan het werven