Benefits of Strength Training on Body Composition in Older Adults

By Ty Sevin, Aug 30, 2021

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The following definitions will be useful in understanding the research studies dealing with body composition.

Body Composition:
The levels of fat mass and lean body mass which make up the composition of the body.

DEXA:
Dual Energy X-ray Absorptiometry - a scientific test using x-ray technology to determine body composition.

Fat Mass:
The amount of body which is made up of fat. Often referred to as percent body fat.

HYDRO:
Hydrostatic weighing - a method of determining fat mass verses lean mass by weighing an individual underwater.

Lean Body Mass:
The amount of body which is made up of muscle, bone, fluids, and internal organs. Often called metabolically active mass or fat free mass.

MRI:
Magnetic Resonance Imaging - a scientific test that uses magnetic fields and radio waves to produce colorful images which differentiate between muscle and fat.

Resting Metabolic Rate:
The number of calories (i.e., energy required) to sustain the body while at rest.

Skinfold:
A test done to measure the subcutaneous fat.

Subcutaneous Fat:
Fat stored directly under the skin surface

About the author

Ty Sevin

Director of Human Performance, Education and Research

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With over 25 years of coaching experience at both the collegiate and Olympic levels, Ty Sevin is one of the most influential track and field coaches in the country. Ty has worked for the United States Olympic Committee, serving as the Director of the Track and Field Residency Program at the USOC Olympic Training Center in Chula Vista, CA. He has also served as an assistant coach for Team USA on three separate occasions, for both the men’s and women’s teams. Ty himself was a four-time U.S. Olympics Trials qualifier in javelin. Ty most recently spent four years as the Associate Head Coach at the University of Texas at Austin for both the men’s and women’s track and field teams. Prior to that, he led the men’s and women’s track and cross-country teams at the University of New Orleans and McNeese State.

Currently, Ty applies his vast industry experience to the role of Director of Human Performance, Research and Education for Keiser Corporation, where he consults with college and professional sports teams regarding the utilization of Keiser strength equipment. He is also responsible for creating educational curriculum relating to human performance and overseeing Keiser research projects