The Effect of Velocity Training in Functionally Limited Elderly

NCT01211496 | Completed

• 2 other identifiers: 1042318R03AG025141-01
• Study Type: interventional
• Target: 52
• Locations: 0 countries
• Sites: N/A

Brief Summary

We are exploring a unique weight-training program for men and women 65 years or older that emphasizes high speed training. We believe that the speed at which muscles move may be more important to the performance of functional tasks than how strong the muscles are. We are comparing velocity training with traditional strength training to determine which method has the greatest effects on muscle strength, speed of movement, functional performance and physical disability. We believe that higher speed training will improve these measures to a greater extent than simply training for increased muscle strength. Aging also results in loss of bone mass, which increases the risk for falls and fractures. Strength training also has been shown to maintain bone mass in the elderly, but no studies have examined high velocity resistance training and maintenance of bone mass. We believe it is important to examine this aspect of velocity training before recommendations can be made.

Conditions

Aging

Keywords

functional testing; resistance training; velocity training; elderly; geriatric; knee; leg; leg strength

Outcome Measures

Primary Outcomes (1)

• Strength and Power

  The strength and power of the lower limb muscles will be measures using Keiser pneumatic leg press and knee extension exercise machines. The Keiser machines allow for the specific measurement of the contributions of force and velocity to the development of power, which will reveal whether the high-speed training protocol impacts speed-related measures of muscle performance.

  6 months

Secondary Outcomes (1)

• Mobility and Function

  6 months

Study Arms (3)

High-speed power training

ACTIVE COMPARATOR

Volunteers randomized into High-speed power training (HSPT) will be exercised 3 times per week for 12 weeks. Each training session will consist of 3 sets of 12 to 14 repetitions at 40% of maximal strength for leg press (LP) and seated knee extension (KE) exercises.

Behavioral: High-speed power training

Slow-speed strength training

ACTIVE COMPARATOR

Volunteers randomized into Slow-speed strength training (SSST) will be exercised 3 times per week for 12 weeks. Each training session will consist of 3 sets of 8 to 10 repetitions at 80% of maximal strength for LP and KE exercises.

Behavioral: Slow-speed strength training

placebo exercise (control group)

NO INTERVENTION

Volunteers randomized into the control group (CON) will undergo a placebo exercise intervention consisting of lower extremity range of motion and flexibility exercises performed 2 times per week with the assistance of the research staff.

Interventions

High-speed power training BEHAVIORAL

High speed resistance training, 3 sessions per week for 12 weeks

Also known as: power training, weight training

High-speed power training

Slow-speed strength training BEHAVIORAL

Slow speed resistance training, 3 sessions per week for 12 weeks

Also known as: weight training

Slow-speed strength training

Eligibility Criteria

• Age: 65 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Older Adult (65+)

You may qualify if:

• years of age
• relatively inactive
• male or female
• good overall health
• living independently (not in a nursing home or care facility)

You may not qualify if:

• physically active/athletic
• heart attack or unstable angina within 6 months of consent
• hip fracture, knee or hip replacement within 6 months of consent
• diagnosed neurological disease
• pulmonary disease requiring use of oxygen
• osteoarthritis of the knee
• severe visual or hearing impairment

Sponsors & Collaborators

• University of Missouri-Columbia: lead
• National Institute on Aging (NIA): collaborator

MeSH Terms

Interventions

Resistance Training

Intervention Hierarchy (Ancestors)

Exercise Therapy; Rehabilitation; Aftercare; Continuity of Patient Care; Patient Care; Therapeutics; Physical Therapy Modalities; Physical Conditioning, Human; Exercise; Motor Activity; Movement; Musculoskeletal Physiological Phenomena; Musculoskeletal and Neural Physiological Phenomena

Study Officials

• Stephen P Sayers, Ph.D.

  University of Missouri-Columbia School of Health Professions Physical Therapy Dept

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: INVESTIGATOR
• Purpose: PREVENTION
• Intervention Model: FACTORIAL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: December 2, 2008
• First Posted: September 29, 2010
• Study Start: June 1, 2004
• Primary Completion: May 1, 2008
• Study Completion: May 1, 2008
• Last Updated: October 4, 2016

Record last verified: 2016-10

Data Sharing

• IPD Sharing: Will not share