Effects of Resistance and Endurance Training on Synthesis of Individual Muscle Proteins in Young and Older Adults

NCT ID: NCT01489930

Last Updated: 2011-12-12

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

67 participants

Study Classification

INTERVENTIONAL

Study Start Date

2008-05-31

Study Completion Date

2011-02-28

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

Loss of skeletal muscle strength and skeletal muscle mass occurs with of aging. This are-related decline in skeletal muscle mass and skeletal muscle strength is a major underlying factor contributing to many of the metabolic disorders and frailty of the investigators rapidly expanding aging population. Endurance (aerobic) and resistance exercise training programs have been shown to effectively reverse the age-related decline in metabolic and contractile muscle functions. The investigators will measure synthesis rates of individual muscle proteins in 36 each of young (18-30 yrs) and 36 older (\> 65 yrs) people to determine their response to 8 weeks each of endurance, resistance, combined endurance and resistance training, or placebo exercise training.

Hypotheses.

1. to measure fractional synthesis rates of multiple muscle proteins and identify those that are enhanced by an endurance exercise program
2. to determine whether changes in protein synthesis in response to endurance exercise programs are dependent on age
3. to measure fractional muscle synthesis rates of multiple muscle proteins and to identify those that are enhanced by a resistance exercise program
4. to determine whether changes in protein synthesis in response to resistance exercise programs are dependent on age

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Sarcopenia

Keywords

Explore important study keywords that can help with search, categorization, and topic discovery.

Exercise Aging Sarcopenia Mitochondria

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Endurance Exercise

Participants will perform 8-weeks of moderate intensity endurance (cycling) exercise

Group Type EXPERIMENTAL

Endurance exercise

Intervention Type BEHAVIORAL

Participants will perform 8-weeks of endurance exercise training. Participants will train 5 days per week for 60 min at 65% of VO2 peak.

Resistance Exercise

Participants will perform 8-weeks of whole-body resistance exercise training.

Group Type EXPERIMENTAL

Resistance exercise

Intervention Type BEHAVIORAL

Participants will perform 8-weeks of resistance exercise training. Participants will train 4 days per week for \~60 min. Two days will focus on lower body resistance training and two days will focus on upper body.

Control / Combined Training

Participants will perform 8-weeks of no exercise, followed by an additional 8-weeks of combined endurance plus resistance exercise training.

Group Type EXPERIMENTAL

Control/Combined training

Intervention Type BEHAVIORAL

Participants will perform 8-weeks of no exercise (control), followed by 8-weeks of combined endurance and resistance training. Participants will endurance train 5 days per week for 30 min at 65% of VO2 peak and resistance train 4 days per week for 30 min.

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Endurance exercise

Participants will perform 8-weeks of endurance exercise training. Participants will train 5 days per week for 60 min at 65% of VO2 peak.

Intervention Type BEHAVIORAL

Resistance exercise

Participants will perform 8-weeks of resistance exercise training. Participants will train 4 days per week for \~60 min. Two days will focus on lower body resistance training and two days will focus on upper body.

Intervention Type BEHAVIORAL

Control/Combined training

Participants will perform 8-weeks of no exercise (control), followed by 8-weeks of combined endurance and resistance training. Participants will endurance train 5 days per week for 30 min at 65% of VO2 peak and resistance train 4 days per week for 30 min.

Intervention Type BEHAVIORAL

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Healthy
* 18 to 30 or \>65 years
* Males and Females

Exclusion Criteria

* Regular Exercise Program
* Smoking
* Cardiometabolic Disease (diabetes, cardiovascular disease, thyroid disorders)
* Drugs known to impair metabolic function (beta blockers, steroids)
* Allergies to lidocaine
* Physical disability that precludes exercise
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Mayo Clinic

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

K. Sreekumaran Nair

Professor of Medicine

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

K. Sreekumaran Nair, MD, PD

Role: PRINCIPAL_INVESTIGATOR

Mayo Clinic

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Mayo Clinic

Rochester, Minnesota, United States

Site Status

Countries

Review the countries where the study has at least one active or historical site.

United States

References

Explore related publications, articles, or registry entries linked to this study.

Irving BA, Lanza IR, Henderson GC, Rao RR, Spiegelman BM, Nair KS. Combined training enhances skeletal muscle mitochondrial oxidative capacity independent of age. J Clin Endocrinol Metab. 2015 Apr;100(4):1654-63. doi: 10.1210/jc.2014-3081. Epub 2015 Jan 19.

Reference Type DERIVED
PMID: 25599385 (View on PubMed)

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

07-007689

Identifier Type: -

Identifier Source: org_study_id