Grant M. Tinsley, Ph.D.

Researcher: Grant M. Tinsley, Ph.D.

Title: Assistant Professor of Exercise Physiology

Laboratory: Room 114, Energy Balance & Body Composition Laboratory

 

 

Overview

Dr. Tinsley is the Director of the Energy Balance & Body Composition Laboratory in the Department of Kinesiology & Sport Management at Texas Tech University. His lab group studies the impact of nutrition, exercise, and supplementation on human body composition, exercise performance, and health. Two particular research interests are evaluating intermittent fasting programs in active individuals and examining body composition assessment methodology, including validity and reliability testing of novel assessment techniques.

Research Laboratory

Laboratory Capabilities

The primary capabilities of the laboratory are advanced body composition assessment and metabolic assessments. Additional facilities for evaluating muscular performance and implementing training programs are located in adjacent laboratories.

The specific capabilities of the laboratory are:

• Producing molecular-level multi-compartment model body composition models (see figure below).

• Total and segmental body composition analysis
  
  • Lean soft tissue or fat-free mass
  • Fat mass
  • Bone mineral content
• Muscle cross-sectional area, thickness, and quality
• Visceral fat estimation
• Fluid analysis
  
  • Total body water
  • Intracellular water
  • Extracellular water
• Automated anthropometric analysis
  
  • Total and segmental volumes
  • Circumferences and lengths of virtually any body segment
• Bioelectrical parameter analysis
  
  • Resistance, reactance, and impedance
  • Phase angle
• Resting metabolic rate assessment
• Substrate oxidation assessment

Equipment

• Dual-energy x-ray absorptiometry (DXA)
  • GE Lunar Prodigy
  • GE iDXA (located in adjacent shared laboratory)

• Air displacement plethysmography
  • Cosmed Bod Pod

• Bioimpedance spectroscopy (BIS)
  • Impedimed SFB7

• Multi-frequency bioelectrical impedance analysis (MFBIA) with segmental body composition capabilities
  • Seca mBCA 514/515
  • InBody 770

 

• Single-frequency bioelectrical impedance analysis (SFBIA) with segmental body composition capabilities
  • RJL Quantum V

• 3-dimensional optical scanners
  • SizeStream SS20
  • Fit3D ProScanner
  • Styku S100

 

 

• Ultrasonography
• Electrical impedance myography (EIM)
  • Skulpt Chisel
• Indirect calorimetry
  • ParvoMedics TrueOne 2400
  • Cosmed FitMate WM

 

• Body mass scales
  • Calibrated scale (modified Tanita, Corp. Model BWB-627-A)
  • Standard Seca body mass scale with stadiometer
• Ten computer workstations for data processing/analysis
• Padded tables for supine assessments

Research Team

Current Lab Members

Doctoral Students

Pat Harty, M.S.

• Degree program: Ph.D. in Exercise Physiology, focus in Sports Nutrition
• Educational background
  • B.S. in Exercise Science at Lindenwood University, St. Charles, MO
  • M.S. in Human Performance at Lindenwood University, St. Charles, MO
    • Thesis: Caffeine Timing Improves Lower-Body Muscular Performance (chair: Chad M. Kerksick, Ph.D.)
• Career goals: Teach and research at a major university
• Hometown: St. Louis, Missouri
• Hobbies: Reading, Fitness, Hiking

 

Matthew Stratton, M.S., CSCS, CISSN, CPT

• Degree program: Ph.D. in Exercise Physiology, focus in Sports Nutrition
• Educational background
  • B.S. in Exercise Science, University of New Mexico, Albuquerque, NM
  • M.S. in Applied Exercise and Health Sciences, Kennesaw State University, Kennesaw, GA
    • Thesis: The Effect of Time Restricted Feeding with Resistance Training on Measures of Body Composition, Muscular Performance, Blood Markers, and Psychometric Parameters (chair: Trisha VanDusseldorp, Ph.D.)
• Career goals: Teach sports nutrition at the university level
• Hometown: Palm Springs, California
• Hobbies: Lifting, Watching Sports, Listening to Podcasts

 

Madelin Siedler, M.S., M.A.

• Degree program: Ph.D. in Exercise Physiology, focus in Body Composition & Metabolism
• Educational background
  • B.A. in Political Studies at Bard College, Annandale-on-Hudson, NY
  • M.A. in Health Communication at Emerson College, Boston, MA
  • M.S. in Exercise Science (concentration: Strength and Conditioning) at University of South Florida, Tampa, FL
    • Research project: The effect of moderate intermittent versus continuous energy restriction on body composition, resting metabolic rate, and hunger and eating behaviors in resistance-trained females (advisor: Bill Campbell, Ph.D.)
• Career goals: Teach, research, and develop guidelines for exercise and sports nutrition
• Hometown: Palmer, Alaska
• Hobbies: Lifting (and dancing) to ‘90s and 2000s music, enjoying the outdoors

 

Master's Students

Christian Rodriguez, B.S., CPT

• Degree program: M.S. in Kinesiology, concentration in Human Performance
• Educational background
  • B.S. in Kinesiology, Texas Tech University, Lubbock, TX
• Career goals: Teach and research at the university level
• Hometown: Lubbock, Texas
• Hobbies: Lifting, Reading, Watching Movies, Singing, Playing Guitar

 

Dale Keith, B.A., CSCS

• Degree program: M.S. in Kinesiology, concentration in Human Performance
• Educational background
  • B.A. in Exercise and Sport Science, The University of North Carolina, Chapel Hill, NC
• Career goals: Teach and perform research on exercise physiology and sport nutrition related topics; coach high school wrestling and strength sports.
• Hometown: Crofton, Maryland
• Hobbies: Lifting, football, wrestling, and chilling at the beach

 

Jacob Green, B.S., RD

• Degree program: M.S. in Kinesiology, concentration in Human Performance
• Educational background
  • B.S. in Nutrition & Dietetics, The University of Akron, Akron, OH.
• Career goals: Teach and research sports nutrition at the university level
• Hometown: Parma, Ohio
• Hobbies: Lifting, eating, and dancing.

 

Jake Boykin, B.A.

• Degree program: M.S. in Kinesiology, concentration in Human Performance
• Educational background
  • B.A. in Chemistry, Gustavus Adolphus College, St. Peter, MN.
• Career goals: Teach and research at the university level
• Hometown: Las Cruces, New Mexico
• Hobbies: Fitness, Watching Youtube, Cooking.

 

Undergraduate Students

Jacob Dellinger

• Degree program: B.S. in Kinesiology, minor in Spanish
  • Honors College Undergraduate Research Scholar
• Career goals: Attend medical school and pursue a career in medicine
• Hometown: Denton, Texas
• Hobbies: Running, Sports, Video Games

 

 

Sarah White

• Degree program: B.S. in Biochemistry, minor in Biology
  • Honors College Undergraduate Research Scholar
• Career goals: Attend medical school and pursue a career in forensic pathology 
• Hometown: Flower Mound, Texas
• Hobbies: Cooking, Hiking, Watching true crime documentaries

 

 

Abbey Williams

• Degree program: B.S. in Kinesiology, minor in Chemistry and Biology
  • Undergraduate Scholar through the Center for Transformative Undergraduate Experiences
• Career goals: Attend medical school and pursue a career in Cardiology
• Hometown: Carrollton, Texas
• Hobbies: Fitness, Art, Puppies, Traveling for mission trips

 

Brielle Dehaven

• Degree program: B.S. in Kinesiology, minor in Health Professions
• Career goals: Attend physical therapy school and become a Doctor of Physical Therapy.
• Hometown: Carrollton, Texas
• Hobbies: Hiking, climbing, reading, weight training, watching movies, and running