Effect of Strength Training and Protein Ingestion in Old Versus Very-old

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

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

45 participants

Study Classification

INTERVENTIONAL

Study Start Date

2014-04-01

Study Completion Date

2016-03-30

Brief Summary

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From 3 interventiongroups in the project with ClinicalTrials.gov ID NCT02034760, namely:

HRTW: Heavy Strength Training x3/week \& 20g whey protein twice daily. LITW: Light Intensity Training x3-5/week \& 20g whey protein twice daily. WHEY: 20g whey protein twice daily.

15 subjects from each group will be recruited and tested after 3 months of intervention. Tests will include muscle cross sectional area (MRi), muscle biopsies (fiber types, size, cell- and capillary count), functional- and strength measurements, plasma lipids, HbA1c. Tests are to be compared with Project ID NCT01997320.

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Detailed Description

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In- and exclusion criteria are listed in NCT02034760. Subjects will be randomized to interventions as described, and 15 subjects from each of the three groups will be tested after 12 weeks of intervention.

15 subjects are included in each group to account for an expected drop-out rate of 20%, and so 12 subjects are expected to complete each intervention. With this N an increase of around 11% in MRi-evaluated muscle size can be detected with a powerlevel of 80% and an alpha of 0.05 and use of reported SD.

Primary outcome is muscle size (MRi), and secondary outcomes are overall body composition (DXA), muscle strength, rate of force development, power, 30s chair stand, 400m gait speed, grip strength. Tertiary outcomes are habitual activitylevel (accelerometry), blood samples (HbA1c, cholesterols, creatinine), blood pressure, weight, BMI, wast- and hip circumference.

Results are to be compared with NCT01997320 and so a population of 65+ can be compared with a population of 83+. Both studies uses the same heavy strength training regimen.

Conditions

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Sarcopenia Muscle Loss

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

DOUBLE

Investigators Outcome Assessors

Study Groups

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Heavy Resistance Training

Heavy Resistance Training of the lower extremities three times weekly in combination with two daily 20g whey protein and 10g carbohydrate supplementations for 3 months.

Group Type ACTIVE_COMPARATOR

Heavy Resistance Training

Intervention Type PROCEDURE

Supervised Heavy Resistance Training three times weekly for 3 months.

Light Intensity Training

Home-based Light Intensity Training of the lower extremities three-five times weekly in combination with two daily 20g whey protein and 10g carbohydrate supplementations for 3 months.

Group Type EXPERIMENTAL

Light Intensity Training

Intervention Type PROCEDURE

Home-based Light Intensity Training three-five times weekly for 3 months.

Protein Whey

Two daily 20g whey protein and 10g carbohydrate supplementations for 3 months.

Group Type ACTIVE_COMPARATOR

Protein Whey

Intervention Type PROCEDURE

Two daily 20g whey protein and 10g carbohydrate supplementations for 3 months.

Interventions

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Heavy Resistance Training

Supervised Heavy Resistance Training three times weekly for 3 months.

Intervention Type PROCEDURE

Light Intensity Training

Home-based Light Intensity Training three-five times weekly for 3 months.

Intervention Type PROCEDURE

Protein Whey

Two daily 20g whey protein and 10g carbohydrate supplementations for 3 months.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Healthy, independently living
* Age at least 65 years

Exclusion Criteria

* Subjects dependent on help/nursing etc.
* Chronic medical diseases: Diabetes mellitus, clinical knee or hip osteoarthritis, other types of arthritis or connective tissue disorders, active cancer, renal diseases, severe chronic obstructive pulmonary disease, cardiac arrhythmias or known decreased left ventricular ejection fraction, lactose or gluten intolerance, chronic inflammatory bowel diseases, non-treated hyper/hypothyroidism, dementia.
* Surgical diseases: Bone, muscle, tendon or joint injuries compromising participation in exercise regimens.
* Implanted magnetic devices incompatible with MRi-scanning.
* Weekly alcohol consumption \> 21 units (1 unit equals 4g of ethanol) for men and \> 14 for women.
* Medicine except acetylsalicylic acid, paracetamol, thyroid function hormones, statins in doses above 40mg/day or if combined with subjective myalgia, ACE-inhibitors, Angiotensin II blockers, beta-blockers, calciumantagonists, proton-pump inhibitors, thiazides, potassium-sparing diuretics and loop diuretics.
* \>1 hour of exercise weekly, except light activities such as stretching/gymnastics and bike-riding/walking as transportation.

Minimum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes