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Improving Strength, Power, Muscle Aerobic Capacity, and Glucose Tolerance through Short-term Progressive Strength Training Among Elderly People
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Multi-Component Exercise with High-Intensity, Free-Weight, Functional Resistance Training in Pre-Frail Females: A

N W Bray1, G J Jones, K L Rush

  • 1Jennifer M. Jakobi, School of Health and Exercise Sciences, Faculty of Health and Social Development, University of British Columbia Okanagan, Kelowna, British Columbia, Canada, V1V 1V7, jennifer.jakobi@ubc.ca.

The Journal of Frailty & Aging
|April 8, 2020
PubMed
Summary
This summary is machine-generated.

This study shows that a 12-week high-intensity, functional resistance training program is safe and feasible for pre-frail older adults. The intervention improved frailty status, functional performance, and muscle strength.

Keywords:
Older agefemalesmuscle strengthquality of liferesistance training

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Area of Science:

  • Gerontology
  • Exercise Science
  • Public Health

Background:

  • Frailty is a growing concern in aging populations, particularly among women.
  • Current exercise interventions often lack high-intensity, functional resistance training components.
  • Standardized frailty assessment tools are crucial for evaluating interventions in pre-frail individuals.

Purpose of the Study:

  • To assess the feasibility and safety of a novel exercise intervention for pre-frail older adults.
  • To determine the intervention's impact on frailty status, functional task performance, and muscle strength.
  • To gather data for calculating effect size for future randomized controlled trials.

Main Methods:

  • A 12-week, quasi-experimental pilot study involving 20 pre-frail older adults.
  • The intervention included multi-component exercise with a focus on high-intensity, free-weight, functional resistance training.
  • Outcomes measured included feasibility, safety, frailty status, functional performance (grip strength, sit-to-stand), and muscle strength (knee extensors, elbow flexors).

Main Results:

  • The exercise program demonstrated high adherence (88.3%) and no dropouts or adverse events, indicating feasibility and safety.
  • Exercise participants showed significant improvements in gait speed, grip strength, and sit-to-stand time.
  • Significant gains in knee extension strength and velocity were observed in the exercise group, while the control group showed a decline in elbow flexion velocity.

Conclusions:

  • The high-intensity, functional resistance training intervention is feasible and safe for pre-frail older adults.
  • The program effectively improved frailty status, functional task performance, and muscle strength.
  • Findings support the design of a larger randomized controlled trial to further validate these results.