Dr. Ratliff has an overriding professional interest to better understand and
explain how exercise affects, or is related, to selective genres of health
and performance. His primary interests are many and broad
which makes his vocation a never ending challenge and forever exciting. However,
probably most exciting over the years has been his study
of the effects of acute and chronic exercise in the following four general
areas: lipid metabolism, performance of demanding physical tasks by athletes
and emergency service personnel, how altering body weight
while ambulating affects physiological and biomechanical responses,
and quantifying relative body movement acceleration patterns.
The high quality of both colleagues and students he has had the opportunity
to work with at OU has made these efforts a most rewarding experience. He tries
to connect theory with applications in the real
world by pulling upon his on experiences in clinical, fitness and sport settings,
and also by maintaining regular ties with successful
practitioners in these arenas.
This is especially helpful when attempting to bridge the theory with the useful
in order to help students learn about applying the sciences of exercise, fitness
and health. In the past he has been active in various professional service
activities on the OU campus, in the Norman community, and at the State and
National level. More recently he has focused most of his service involvement
with youth sports and public school programs in the Norman community, especially
those associated with his children's programs.
Over the years at the University of Oklahoma I have taught more than 20 different
courses. Most have focused on physiological aspects of health, exercise and
human performance. Currently, my primary teaching assignments at the undergraduate
and graduate levels are in biomechanics (HES 3843), health-fitness (HES 3813
and 3853), and in Scientific Investigations (HES 5953) and Senior Capstone
(HES 4953). I also have taught laboratory based courses in exercise physiology
(HES 4833 and 5833).
effects of exercise training and diet on coronary artery disease lipid risk
factors
performance of demanding physical tasks by athletes and emergency service
personnel
how altering body weight while ambulating affects physiological and biomechanical
responses quantifying relative body movement acceleration patterns
incorporating computer assistance technology in the human performance laboratory
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*Principal or Co-Principal Investigator/Role; **Support Investigator/Role
Upcoming manuscripts in process of revision or projected 1998 submission --
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"Methods for Measuring Human Physical Activity by Piezoresistive Accelerometry." Accepted
October 1993 pending acceptance of revision to Behavior Research Methods,
Instruments and Computers. *Co-authored with K. Dormer et al. Need to eventually
resubmit „t soon --
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Effect of body weight support on selected physiological
and biomechanical responses? planned submission Spring 1998 to Medicine
and Exercise in Sport and Exercise *Co-authored with D. Kent et al.
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"Effects of Exercise Training and Withdrawal on Plasma Lipids and Physical
Fitness." Planned submission Summer 1998 to Life Sciences
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"Demonstration of Valid and Reliable Computer Assisted Methods to Assess
Muscle Power Using Motions Sensors" planned for submission Fall 1998
to Journal of Applied Physiology or European Journal of Applied Physiology
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"Incidence and treatment of obesity in the physically disabled „ accepted
for FASEB Proceedings, (Abstract) 1997 **Co-authored with S Pakarian and
A Knehans
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"Finding peak force and velocities at selected
1-RM percentages in the bench press maneuver? Central States American College
of Sports Medicine Meeting Proceedings, (Abstract) Oct, 1996, Norman, **Co-authored
with RT Ratliff et al.
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"Physiological, biomechanical and functional mobility
changes from two years of body weight support ambulatory rehabilitation
following a stroke: A case study? Central States American College of Sports
Medicine Meeting Proceedings, (Abstract) Oct, 1996, Norman, **Co-authored
with D. Kent et al.
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"Physical Fitness of Children and Adolescents?
Nutrition and Physical Fitness in Children and Adolescents Conference Proceedings,
Pediatric Associates, Yale University, October, 1995. *Ratliff, RA
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"Physiological and Gait Changes from Body Weight Support Exercise in
Patients with Walking Disabilities" Medicine and Science in Sport
and Exercise (Abstract), 27: S104, 1995. *Ratliff, RA, D Kent, et al.
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"Demonstration of Valid and Reliable Computer Assisted Methods to Assess
Power Using Motions Sensors" National Strength and Conditioning Association
Research Symposium Proceedings, June 1995. *Ratliff, RA, M Bemben, et al
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"Assessing Neuromuscular Power with Piezoresistive Accelerometry" Medicine
and Science in Sport and Exercise (Abstract), 27: S210, 1995. **Co-authored
with, M. Bemben, D. Fields, et al.
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"Piezoresistive Accelerometers as a Valid, Reliable and Sensitive Measurement
Tool of Physical Activity". AAHPERD Research Meeting, Proceedings
(Abstract), October 1994. *Co-authored with M. Bemben, et al.
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"Assessment of Power Development During Weight Training Movements Using
Piezoresistive Accelerometry" : Central States American College of
Sports Medicine Meeting, Proceedings, (Abstract), October, 1994, *Co-authored
with D. Egle, M. Bemben et. al.
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"Progressive Walking and Body Weight Support Adaptations of Disabled
Subjects during 9 Weeks of Rehabilitation" Central States American
College of Sports Medicine Meeting Proceedings, Oct, 1994, Columbia, *Co-authored
with D. Kent et al.
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"The Effects of Body Weight Support Training on Physiological and Perceptual
Responses of Ambulatory Disabled Subjects" Central States American
College of Sports Medicine Meeting Proceedings, October, 1994, Columbia,
Co-authored with D. Kent et al.
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"Energy Expenditure, Cardiovascular and Gait Responses Under Graduated
Body Weight Support Rehabilitation" AAHPERD Research Meeting, Proceedings
(Abstract), October 1994. *Co-authored with D. Kent et al.
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"Physiological Response Comparison of Upper and Lower Body Weight Support." Medicine
and Science in Sport and Exercise (Abstract), 25:38, 1993. *Co-authored
with D.K. Kent, K.J. Dormer and J.L. Yan.
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"Comparison of Physiological Responses While Walking at Various Speeds
and Grades with Hand Held Weights." Medicine and Science in Sport
and Exercise (Abstract), 25:56, 1993. *Co-authored with K.A. Alexander,
L. Taylor, M.L. Martin, and P.D. Galyon.
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"Effects of Body Weight While Walking." Central
States American College of Sports Medicine Proceedings (Abstract), October
1992. *Co-authored with D. Kent.
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"Comparison of the CALTRAC and PAMS Accelerometry Instruments as Measures
of Energy Expenditure During Walking." Medicine and Science in Sport
and Exercise (Abstract) 24:49, 1992. *Co-authored with D. Egle, K. Dormer,
J. Yan and L. Roberts.
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"Evaluation of the PAMS Accelerometry Instrument to Estimate Caloric
Expenditure." Central States American College of Sports Medicine Proceedings
(Abstract), Oct 1991. *Co-authored with L. Roberts, K. Dormer, D. Egle.
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"An Exploration of the Application of Piezoresistive Accelerometry." Biomedical
Engineering Journal of China, 47:351-362, 1992. *Co-authored with J. Yan,
D. Egle, and K. Dormer.
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"Effects of Chronic Exercise Training and Withdrawal on Plasma Lipids
and Lipoproteins." Planned submission to Journal of Applied Sport
Science or Atherosclerosis, 1993. *Co-authored with A. Knehans.
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"Effect of Exercise Adherence on Plasma Lipids." Planned
submission to Journal of Health Promotion, 1993. **Co-authored with L. Taylor.
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"Prediction of Energy Expenditure by an Accelerometry Heart Rate Model." Central
States American College of Sports Medicine Meeting Proceedings (Abstract),
October 1990. *Co-authored with K. Dormer, D. Egle, J. Yan, and L. Roberts.
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"Effects of Frequency of Exercise Training on Plasma Lipids." Medicine
and Science in Sport and Exercise (Abstract), 22:283, 1990.
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"Endurance Training of the Pediatric Athlete," Ch.
2. In: The Pediatric Athlete, (Ed.) W. Grana. Chicago: American Academy
of Orthopedics, 1990.
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"Job Related Physical Performance Test." Advances
in Industrial Engineering. March 1990. *Co-authored with J. Purswell and
A. Hughes.
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"CHRs: A Valuable Resource for CHD Health Education for Native Americans." Health
Education, 20:16-20, 1989. *Co-authored with V. Cleaver and B. Rogers.
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"Content Validation Methodology for Physical Performance Testing of Correctional
Officers." Journal of Personnel Management, 18:487-504, 1989. *Co-authored
with M. Hughes, J. Purswell, and J. Hadwiger.
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"Effect of Handrail Support on Hemodynamic Responses During Exercise
on a Stair Climbing Treadmill." Central States American College of
Sports Medicine Proceedings (Abstract), October 1989. *Co-authored with
P. Galyon, G. Barrett, and L. Taylor.
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"Effect of a CHD Risk Intervention Program on Diet and Exercise Adherence
and Plasma Lipid Alterations." Central States American College of
Sports Medicine Proceedings (Abstract), October 1989. *Co-authored with
A. Knehans, and L. Taylor.
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"Estimation of Daily Task Energy Expenditure with Accelerometry and Heart
Rate." Central States American College of Sports Medicine Proceedings
(Abstract), 1989. *Co-authored with K. Dormer.
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"Multichannel Human Telemetry Real Time Data Analysis for Simultaneous
Monitory of Body Accelerations, Heart Rate and Core Temperature." FASEB
Proceedings (Abstract), 48(4):491, 1989. *Co-authored with K. Dormer.
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"Effects of Exercise Adherence on HDL Cholesterol Among Healthy Adult
Males." Central States American College of Sports Medicine Proceedings,
(Abstract), Tulsa, OK, October 1988.
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"Gastrointestinal Bleeding in Competitive Cyclists." Medicine
and Science in Sport and Exercise, (Abstract), 20:78, 1988. **Co-authored
with T. W. Dobbs, M. Atkins, and R. Eichner.
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Comparison of Training Programs
to Improve Performance on Physical Performance Tests of Correctional Officers".
Medicine and Science in Sport and Exercise, (Abstract). *Co-authored with
M. McCarthy and A. Hughes.
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Effect of Financial Reward and Behavioral Change
Intervention on Exercise Compliance. AAHPERD Research Proceedings, (Abstract),
Kansas City, April 1988. *Co-authored with L. Taylor and V. Cleaver.
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"Human Temperature and Heart Rate Telemetry During Exercise." FASEB
Proceedings, (Abstract), 47(4):321, 1988. *Co-authored with K. Dormer and
T. Cushing.
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Efficacy of Using Selected Physiological Data via a
Biotelemetry- Microcomputer System. Proceedings of Central States American
College of Sports Medicine Meeting, (Abstract), Fayetteville, AR, October
1987. **Co-authored with K. Dormer, T. Cushing, & R. Vandeveer.
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Multichannel Human Telemetry
System for Thermoregulatory, Cardiovascular and Activity Monitoring. Federation
Proceedings, (Abstract) 46(3):676, 1987. **Co- authored with K. Dormer,
T. Cushing, & E. Konigsberg.
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"Development of Job Related Physical Performance Test for Correctional
Officers." Proceedings of Central States American College of Sports
Medicine Meeting, Springfield, MO, October, 1986. *Co-authored with J.
Purswell and A. Hughes.
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"Effects of an Eight Month Calisthenic-Circuit Weight Training Program
of Plasma Lipids, Lipoproteins and Physical Fitness." Medicine and
Science in Sports. (Abstract), 18:33, 1986. *Co-authored with C. Rubenstein.
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"Effects of Exercise Training and Withdrawal on Plasma Lipids and Physical
Fitness." Medicine and Sciences in Sports and Exercise, (Abstract), 18:157,
1986. *Co-authored with B. Mowles, L. Rose, & C. Rubenstein.
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"Cardiorespiratory and RPE Comparisons of the Step, Treadmill and Bicycle
Ergometers at Maximal and Sub-Maximal Workloads." Medicine and Science
in Sports, (Abstract), 17:249, 1985. *Co-Authored with L. Wheeler.
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"A Computer Assisted Weight Control Program." Journal
of Dietetic Software, 4:174-178, 1985. *Co-authored with A. Knehans.
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"Evaluation
of a Computer Assisted Model to Assess and Design Exercise, Diet and Weight
Control Programs. *Proceedings of Central States American College of Sports
Medicine Meeting, Emporia, KS, October, 1985.
-
"Effects of Different
Levels of Training on Plasma Lipids in Adult Females. Proceedings of Central
States Chapter American College of Sports Medicine Meeting, Fayetteville,
AR, 1984. *Co-authored with Carl Rubenstein.
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"Mechanical and Physiological
Calibration of Four Cycle Ergometers. Medicine and Science in Sport and
Exercise, 14:322-325, 1983. *Co- authored with J. Wilmore, F. Roby, M.
Buono.
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"Employees Perception of Benefits Accrued from Physical Fitness Programs." Personnel
Administrator, 13:147-151, 1983. *Co-authored with R. Driver.
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"Energy Cost of Performing Tai-Chi." Medicine
and Science in Sports, (Abstract), 14:108, 1982. *Co-authored with Wen-yuan
Tsao.
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"Physiological and Anthropometric Profiles of Elite High School Wrestling,
Football and Basketball Athletes." Medicine and Science in Sports,
(Abstract), 14:143, 1982. *Co-authored with W Grana.
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"Computer Applications in the Human Performance Laboratory." Invited
Tutorial, In: Proceedings of Kinesiology-Exercise Physiology Research Academy,
AAHPERD Meeting, Houston, Texas, April, 1982.
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"A Computerized Servo-Mechanism Procedure to Control Selected Physiological
Responses." Medicine and Science in Sports, 13:47, 1981. *Co-authored
with B Schlegel.
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"The Effects of Training at Different Duration on Plasma Lipids and Lipoproteins." Medicine
and Science in Sports, 13:97, 1981. *Co-authored with C Rubenstein.
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"The Female Athlete: Body Composition, Somatotype and Physical Performance
- Intersport Comparisons." Health, Physical Education and Recreation
Research Proceedings. Detroit, MI, April, 1980. *Co-authored with W Grana.
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"Indirect Assessment of Systemic and Myocardial Oxygen Consumption of
Selected Calisthenic Exercises." American Journal of Physical Therapy,
60:238, 1980. **Co-authored with M Greer and S Dimick.
-
"Physical Performance and Body Composition Comparisons of Wrestlers Experiencing
Different Levels of Success at the NCAA Championships." The Physician
and Sports Medicine, 7(11), 1979. *Co-authored with J. Stine and W. Grana.
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"Individualizing Exercise in a Group Setting." In
The Complete Exercise Prescription. Ed., B. Londeree. American College
of Sports Medicine, Columbia, MO, December, 1979. *Co-authored with R Lusch
and R Terrell.
-
"Effects of Chronic Training on Plasma Lipids." Medicine
and Science in Sports (Abstract), 10:55, 1978. *Co-authored with C Rubenstein.
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"Coronary Heart Disease Risk Comparisons in College Freshmen at Three
Institutions." Cardiovascular Disease Epidemiology, 38:117, 1978.
*Co-authored with D Cundiff and J Schwanne.
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"Effects of Fire Fighter's Physical Fitness Status on Physical Job Performance
Capability." Proceedings of The American Industrial Hygiene Association
Meeting, April 1978, Los Angeles, CA. *Co-authored with L. Hoag.
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"Postexercise Glycogen Replenishment Patterns in Skeletal Muscle." Medicine
and Science in Sports, 7:120-122, 1976. **Co-authored with R Cochran and
DR Lamb.
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"Physical Performance Capability of Fire Fighters and Their Heart Rate
Responses to Selected Tasks." In: Health and Fitness of Emergency
Services Personnel. Ed., J. A. Davis, San Diego, University of California,
1976, pp. 84-108. *Co-authored with T Gabert and L. Hoag.
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"Glycogen Replenishment Following Exercise." Journal
of Applied Physiology, 38:961-964, 1976. *Co-authored with DR Lamb.
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"Glycogen Supercompensation and Glycogen Synthetase Activity Following
Exercise-Induced Glycogen Depletion." Medicine and Science in Sports
6:87, 1975. *Co-authored with David R. Lamb.
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Monographs, Technical Reports
and Texts:
Physical Performance Evaluation: Review, Critique and Future Recommendations.
Physical Performance Evaluation: Review, Critique and Future Recommendations.
Oklahoma Department of Public Safety. Oklahoma City, Oklahoma, September
1995, 21 pages.
-
"Evaluation of the ErgoMax." Technical report.
University of Oklahoma, Norman, 1990. 74 pages.
-
"Analysis of Current Physical Ability Testing." Oklahoma
Department of Corrections, Oklahoma City, Oklahoma, June 1989, 152 pages.
-
"Convergent Validation of Selected Physical Abilities Tests." Oklahoma
Department of Corrections, Oklahoma City, Oklahoma, May 1989, 75 pages.
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"Operations Manual for University Based Health-Fitness Enhancement Program." University
of Oklahoma, 1978. 71 pages. Revised, 1986, 92 pages.
-
Development of Job
Related Physical Performance Tasks: Analysis of Job Demands and Physical
Performance Capability of Correctional Officers
Volume I. Primary Report, 192 pages.
Volume II. Appendices, 94 pages.
Volume III. Statistical Bases, 160 pages.
Volume IV. Physical Performance Testing Guide, 107 pages.
Volume V. Health Fitness Program Implementation Guide, 205 pages.
Oklahoma Department of Corrections, Oklahoma City, OK, 1985. Co-authored
with J. Purswell and A. Hughes.
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Physical Fitness: Applying Scientific Principles
of Exercise and Diet. Dubuque: Bowers Pub. Co., 1985 (215 pp). Co-authored
with A. Knehans.
-
Job Related Physical Performance Evaluation and Tests
Oklahoma Department of Public Safety. Oklahoma City, Oklahoma, October
1981, 71 pages.
-
Development of Job Related Performance Tests for Firefighters.
Oklahoma City Fire Department. Oklahoma City, OK, 1979. Co-authored with
L Hoag and