JAMES S. WILLIAMS, Ph.D., FACSM                   Associate Professor               Exercise/Sport Sciences                        and Physiology                                 Texas Tech University Texas Tech University Health Sciences Center                      jim.williams@ttu.edu

                                                                                                                               

                                  

                 

EDUCATION

                                                                                                                                                                                     

• BS, Biology/Kinesiology, Lamar University
• MS, Kinesiology (Exercise Physiology), University of Texas (Tyler)
• PhD, Mammalian Physiology, Texas A&M University                                                                                        
• NIH Postdoctoral Fellowship, Respiratory Neurobiology, University of Arizona School of Medicine

                                                                           

ACADEMIC AND RELATED EXPERIENCE

 

 

CURRENT GRADUATE STUDENTS

 

Lee Ferris, PhD Candidate - Physiology/TTUHSC. Dissertation Title: The Effects of Acute and Chronic Exercise on Changes in Serum Brain-Derived Neurotrophic Factor (BDNF), Mood, and Cognition in Human Subjects.

 

Tracie Akerhielm, MS - Exercise Physiology/TTU. Thesis Title: Exercise-Induced Arterial Hypoxemia: Association with Airflow Limitation and Respiratory Muscle Fatigue.

 

Megan Parsons, MS - Exercise Physiology/TTU. Thesis Title: Effects of Menstrual Hormones on Ventilatory Parameters in Young Healthy Females.

 

 

RESEARCH INTERESTS

 

• Cardiopulmonary limitations to exercise in health and disease                                   

• Neural control of breathing during exercise and sleep
• Respiratory muscle fatigue and training
• Physiological gender differences and aging

 

 

 

SELECTED PUBLICATIONS

 

Williams, J.S., Wongsathikun, J., Boone, S.M., and E.O. Acevedo.  Inspiratory Muscle Training Fails to Improve Endurance Capacity in Competitive Athletes. Medicine & Science in Sports & Exercise 34: 1194-1198, 2002; Mosby Year Book of Sports Medicine, Vol. 1, Chap.6, 167-168, 2003.

 

Williams, J.S., Janssen, P.L., Fuller, D.D., and R.F. Fregosi.  Influence of Posture and Breathing Route on Neural Control of Upper Airway Dilator Muscles during Exercise. Journal of Applied Physiology 89: 590-598, 2000.

 

Janssen, P.L., Williams, J.S., and R.F. Fregosi. Consequences of Periodic Augmented Breaths on Respiratory Muscle Activities in Hypoxic Rats. Journal of Applied Physiology. 88:1915-1923, 2000.

 

Fuller, D.D., Williams, J.S., Janssen, P.L., and R.F. Fregosi. Effect of Co-Activation of Protruder and Retractor Tongue Muscles on Pharyngeal Airflow Mechanics in the Rat. Journal of Physiology (Lond) 2:601-613, 1999.

 

Williams, J.S., and T.G. Babb. Differences between Estimates and Measured PaCO₂ during Rest and Exercise in Older Subjects. Journal of Applied Physiology 83:312-316, 1997.

 

Garcia, J., Griffith, D., Williams, J., Blevins, W., and R. Kronenberg. Reduced Diffusing Capacity as an Isolated Finding in Asbestos and Silica-Exposed Workers. Chest 98:105-111, 1990.

 

Carter, R., Peavler, M., Zinkgraf, S., Williams, J., and S. Fields. Predicting Maximal Exercise Ventilation in Patients with Chronic Obstructive Pulmonary Disease. Chest 92:253-259,1987.

 

 

SELECTED ABSTRACT PUBLICATIONS / PRESENTATIONS

 

Ferris, L.T., Williams, J.S., and C-L. Shen.  Serum Neurotrophin Levels Following Acute Exercise in Humans.  Medicine & Science in Sports & Exercise 37:5, 2005. American College of Sports Medicine National Meeting, Nashville, Tennessee, 6-2005.

 

Williams, J.S.  Symposium-Respiratory Muscles in Exercise: Population Differences in Respiratory Muscle Function. American College of Sports Medicine National Meeting, Indianapolis, Indiana, 6-2004.

 

Ferris, L.T., Williams, J.S., Shen, LS., Albus, K.A., and K.B. Hale. Resistance Training Improves Sleep Quality in Older Adults. Medicine & Science in Sports & Exercise 36:5, 2004. American College of Sports Medicine National Meeting, Indianapolis, Indiana, 6-2004.

 

McComb, J.J.R., Roh, D., and J.S. Williams. The Prediction of Maximal Oxygen Consumption from a Submaximal Water Running Test. Medicine & Science in Sports & Exercise 36:5, 2004. American College of Sports Medicine National Meeting, Indianapolis, Indiana, 6-2004.

 

Gonzales, J.U., Williams, J.S., Scheuermann, B.W., and C.R. James.  Gender Differences in Respiratory Muscle Function Following Exhaustive Exercise. Medicine and Science in Sports & Exercise 35:5, 2003.  American College of Sports Medicine National Meeting, San Francisco, California, 5-2003.

 

Gonzales, J.U., Williams, J.S., and B.W. Scheuermann.  Respiratory Muscle Function after Exercise in Competitive Female Cyclists.  Medicine & Science in Sports & Exercise 34:S136, 2002. American College of Sports Medicine National Meeting, St. Louis, Missouri, 5-2002.

 

Scheuermann, B.W., Williams, J.S., Gonzales, J.U., Roh, D., and T.J. Barstow.  Repeated Bouts of Fast Ramp Exercise are not Associated with Changes in the VO2-Work Rate Slope. Medicine & Science in Sports & Exercise 34:S863, 2002. American College of Sports Medicine National Meeting, St. Louis, Missouri, 5-2002.

 

Poklikuha G., James, C.R., Williams, J.S., and J.U. Gonzales. Effects of Cycling Pedal Rate on Running Kinematics in Experienced Triathletes. Medicine & Science in Sports & Exercise 34:S502, 2002. American College of Sports Medicine National Meeting, St. Louis, Missouri, 5-2002.

 

Coffey, T.G., James, C.R., Sizer, P.S., and J.S. Williams.  Effects of Gender and Fatigue on Lower Extremity Mechanics.  Medicine & Science in Sports & Exercise 34:S473, 2002. American College of Sports Medicine National Meeting, St. Louis, Missouri, 5-2002.

 

Williams, J.S., Wongsathikun, J., and E.O Acevedo.  Respiratory Muscle Function following Endurance Exercise in a Thermal Environment. Medicine & Science in Sports & Exercise 33:S59, 2001. American College of Sports Medicine National Meeting, Baltimore, Maryland, 5-2001.

 

Wongsathikun, J., Williams, J.S., Boon, S.M., and E.O Acevedo.  Effects of Resistive Inspiratory Muscle Training on Breathing Capacity and Whole-Body Endurance Exercise Capacity in Trained Individuals.  Medicine & Science in Sports & Exercise 33:S60, 2001. American College of Sports Medicine National Meeting, Baltimore, Maryland, 5-2001.

 

Williams, J.S., Janssen, P.L., Fuller, D.D., and R.F. Fregosi. Neural Control of the Upper Airway during Exercise: Effects of Posture and Breathing Route. Medicine & Science in Sports & Exercise. 32:S331, 2000. American College of Sports Medicine National Meeting, Indianapolis, Indiana, 5-2000.

 

Williams, J.S., DeLorey, D.S., Brumbaugh, G.W., and T.G. Babb. Influence of Flow Resistance and Airflow Limitation on Ventilatory Output during Exercise. Southeast American College of Sports Medicine Annual Meeting, Charlotte, North Carolina, 1-2000.

 

Janssen, P.L., Williams, J.S., and R.F. Fregosi. Consequences of Spontaneous Sighs on Respiratory Muscle Activities in Hypoxic Rats. The FASEB Journal. 13:A821, 1999. Experimental Biology Meeting, Washington, DC, 4-1999.

 

Williams, J.S., Janssen, P.L., and R.F. Fregosi. Neuromuscular Control of Airflow through the Oral and Nasal Passages during Exercise. The FASEB Journal. 12:A783, 1998. Experimental Biology Meeting, San Francisco, California, 4-1998.

 

Janssen, P.L., Williams, J.S., and R.F. Fregosi. Genioglossus and Hyoglossus Muscle Activation during sustained Asphyxia in Rats. The FASEB Journal. 12:A784, 1998. Experimental Biology Meeting, San Francisco, California, 4-1998.

 

Fuller, D.D., Williams, J.S., Janssen, P.L., and R.F. Fregosi. Effect of Selective Hypoglossal Nerve Stimulation on Tongue Movements and Pharyngeal Airflow Mechanics. The FASEB Journal. 12:A783, 1998. Experimental Biology Meeting, San Francisco, California, 4-1998.