Diet and Exercise Interventions to Increase Muscle Strength and Function

Summary

The objective of this study is to test the effects of a healthy diet \& walking (Controls) compared to a healthy diet, walking, and balance/strength exercises (Intervention) on muscle density in two populations: elderly individuals and obese individuals. The intervention will be 3 months in length. During this time, both Control and Intervention groups will meet one time each week for educational sessions on healthy diet strategies and to participate in a group walk for the Control group or group exercises for the Intervention group. The Control group will be asked to walk on their own an additional 4 times per week (5 times total) for at least 10 minutes/day at the start of the study and build to 30 minutes/day by the 3-month time point. The Intervention group will walk two times per week using the same criteria as above, and in addition will do balance/strength exercises on a total of three days per week. Measurements will be made at baseline, at intervention completion (3 months) and at a follow-up (6 months -3 months after completion of the intervention). At 3 months, the control group will be invited to add the balance/strength exercises.

The hypotheses are that adding balance \& strength exercises to a healthy diet plan will increase muscle density (decrease fat infiltration) and improve muscle function in the elderly and in the obese populations. Increases in muscle density are expected to show greater improvements in muscle function in the elderly population, while it is speculated that greater improvements in metabolic measures will show in the obese population. Participants in the intervention group will have a greater reduction in falls and less hospital, ER \& clinic visits compared to the control group, but both groups will have an improved quality of life, positive changes in eating behaviors, and decreased perceived stress.

Conditions

• Obesity
• Sarcopenia
• Metabolic Syndrome X

Interventions

BEHAVIORAL

Walking

The Walking Arm will walk 5 times per week for at least 10 minutes/day at the start of the study and build to 30 minutes/day by the 3-month time point.

BEHAVIORAL

Walking + Exercise

The Walking + Exercise Arm will walk 2 times per week for at least 10 minutes/day at the start of the study and build to 30 minutes/day by the 3-month time point and in addition, complete exercises to improve strength and balance on 3 days each week.

Sponsors & Collaborators

• South Dakota State University

  lead OTHER

Principal Investigators

• Bonny Specker, Ph.D. · South Dakota State University

Study Design

Allocation

RANDOMIZED

Purpose

PREVENTION

Masking

NONE

Model

PARALLEL

Eligibility

Min Age

18 Years

Sex

ALL

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2016-07-31

Primary Completion

2017-04-01

Completion

2017-04-01