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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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Adaptations to a Concurrent Exercise Training Program in Inactive Aging Women.

Danielle D Wadsworth1, Mynor Rodriguez-Hernandez1,2, Lorena S Huffman1

  • 1School of Kinesiology, Auburn University, Auburn, Alabama; and.

Journal of Strength and Conditioning Research
|September 27, 2022
PubMed
Summary
This summary is machine-generated.

This 10-week concurrent exercise program improved body composition and muscular strength in aging women. Sprint interval training effectively reduced fat mass and increased lean mass and strength.

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Area of Science:

  • Exercise Physiology
  • Gerontology
  • Sports Science

Background:

  • Aging is associated with decreased muscle mass and strength, increasing morbidity risks.
  • Concurrent exercise training combines aerobic and resistance training, offering potential benefits for older adults.
  • Inactive aging women represent a population that could significantly benefit from exercise interventions.

Purpose of the Study:

  • To evaluate the impact of a 10-week sprint interval concurrent exercise training program on body composition and muscular strength in inactive aging women.
  • To compare the effects of two different incline levels (0% and 6%) within the sprint interval training protocol.

Main Methods:

  • Sixty-five inactive women (40-64 years) were randomized into two groups.
  • Participants underwent a 10-week program involving sprint interval training (SIT) and undulating resistance training.
  • Body composition was assessed using Dual-energy X-ray absorptiometry (DXA), and muscular strength was measured by 1 repetition maximum (1RM).

Main Results:

  • Both groups showed significant reductions in fat mass (approx. 0.35 kg) and visceral adipose tissue (approx. 0.05 kg).
  • Significant increases were observed in lean body mass (approx. 0.50 kg), lower-body strength (approx. 46.83 kg), and upper-body strength (approx. 11.68 kg).
  • No significant differences were found between the 0% and 6% incline groups.

Conclusions:

  • A 10-week sprint interval concurrent exercise training program is effective for improving body composition and muscular strength in inactive aging women.
  • The observed improvements in muscular strength are crucial, given its role as a predictor of morbidity and mortality.
  • The incline level in SIT did not significantly alter the positive adaptations observed.