College of Health Professions and Sciences > Division of Kinesiology > Physiology of Work & Exercise Response (POWER) Lab

Physiology of Work & Exercise Response (POWER) Lab

Physiology of Work & Exercise Response (POWER) Lab

UCF Division of Kinesiology

Overview

The mission of the UCF Physiology of Work & Exercise Response (POWER) Laboratory is to assess the physiological response to exercise modalities and nutritional interventions aiming to enhance health, fitness and athletic performance. Through the application of exercise physiology and the analysis of human movement, we assist in addressing the contemporary questions of healthcare providers, fitness professionals and sport coaches to aid in decision-making and strategic development. The POWER Laboratory has the capability to measure both physical performance and the metabolic response to field- and laboratory-based exercise protocols.

PARTICIPATE IN A STUDY!

Our laboratory is always recruiting for participants to partake in research studies. Participation in our studies not only helps contribute to science, but can also be a fun learning experience.

Find a Study!

Research Capabilities

Cardiovascular and Pulmonary Function Assessment
  • VO2 max testing-Upper and Lower Body
  • Ventilatory threshold/respiratory compensation point
  • Critical power/speed
  • Physical working capacity/EMG fatigue threshold
  • Autonomic function/heart rate variability
  • Tissue oxygenation (NIRS)
Metabolic and Energy Balance Assessment
  • Resting metabolic rate
  • Maximal fat oxidation and FATmax testing
  • Running economy
  • Energy system contribution
  • Accumulated oxygen deficit
  • Dietary analysis
Strength and Power Assessment
  • Barbell velocity and power
  • Ground reaction forces
  • Isometric mid-thigh pull
  • Vertical jump height/power
  • Peak force/impulse/rate of force development
  • Maximum strength and strength-endurance assessments
  • Leg stiffness/reactive strength index
  • Dynamic strength index
  • Eccentric/concentric/isometric peak torque
  • Hamstrings/quadriceps ratio
  • Force-velocity profiling
  • Anaerobic capacity
Timing and Responsiveness Assessment
  • Linear speed testing
  • Repeated sprint ability
  • Change of direction ability
  • Reactive agility
  • Reaction time/cognitive response
  • Dynamic balance
  • Center-of-pressure postural sway analysis
  • Single-camera markerless motion capture analysis
Body Composition and Hydration Assessment
  • BodPod/Air displacement plethysmography
  • Bioelectrical impedance analysis/spectroscopy
  • 3-Dimensional Optical Imaging
  • Lange caliper skinfolds
  • Urinalysis
  • Salivary osmolality
  • Portable infrared saunas
Skeletal Muscle Form and Function
  • Ultrasonography
  • Electromyography
  • Tensiomyography
  • Electrical impedance myography
  • Myotonometry

Meet Our Team

Director

Jeffrey Stout's profile picture at UCF

Jeffrey Stout, Ph.D.

Pegasus Professor, School Director
Exercise Physiology & Rehabilitation Science, Kinesiology
Location: Education Complex Room: 301
E-mail: Jeffrey.Stout@ucf.edu

Graduate Assistants

headshot of Brandi Antonio

Brandi Antonio

Kworweinski Lafontant

Kworweinski Lafontant

Sofea Smith

Sofea Smith

Medhavi Radadiya

Medhavi Radadiya

Pranathi Kalvakolu

Pranathi Kalvakolu

News

Grant Norte Named New Kinesiology Division Chair
Grant Norte Named New Kinesiology Division Chair
CHPS Alumni Council Launched
CHPS Alumni Council Launched
UCF Grads Score Jobs with FIFA World Cup 2026
UCF Grads Score Jobs with FIFA World Cup 2026
Kinesiology PhD Student Studies the Role of the Brain in Knee Injury Recovery
Kinesiology PhD Student Studies the Role of the Brain in Knee Injury Recovery
Research Roundup: Publications by CHPS Faculty, Fall 2025
Research Roundup: Publications by CHPS Faculty, Fall 2025
Kinesiology PhD Student Selected as ACSM Student Trustee
Kinesiology PhD Student Selected as ACSM Student Trustee
View More News

Selected Relevant Publications

Our laboratory makes a concerted effort to publish our findings in respected academic journals and present at regional, national, and international conferences. In addition to contributing to collective body of knowledge in a given field, presenting original data at conferences is a fun way for the lab’s students to enhance their self-confidence and network with other scientists.

2026

  1. Lafontant, K., Robinson, M., Sterner, D. A., Lebron, M. A., Antonio, B., Livingston, J., … & Fukuda, D. H. (2026). Cell Membrane Capacitance and Characteristic Frequency Among Youth and Adults: Reference Data From NHANES 1999–2000. Journal of the American Nutrition Association, 1-10.
  2. Vasenina, E., Fukuda, D. H., Livingston, J. J., Herda, A. A., Mangum, C. L., & Stout, J. R. (2026). Reliability and relationships between plantar flexor musculotendinous unit assessments: Ultrasonography, myotonography, and isometric strength. Muscles, Ligaments and Tendons Journal, 16(1).
  3. Lafontant, K., Smith, S., Livingston, J., Gonzalez, C., Nguyen, N. L. N., Kampiyil, S., Da Silva Barbera, M. A., Johnson, B., Stout, J. R., & Fukuda, D. H. (2026). Agreement Between a Photograph-Based Five-Compartment Body Composition Model and a Three-Compartment Reference Among Trained Adults. Journal of Strength & Conditioning Research
  4. Stout, J. R., Housh, T. J., & Bergstrom, H. C. (2026). Delaying task failure in high-intensity exercise: a Pi-afferent-effort framework for targeted sports nutrition. Journal of the International Society of Sports Nutrition, 23(1), 2711031.
  5. Rossi, C., Lafontant, K., Vasenina, E., Stout, J. R., & Fukuda, D. H. (2026). Changes in Segmental Bioimpedance Following Eccentric Plantar Flexor Exercise Taken to Volitional Failure. Applied Physiology, Nutrition, and Metabolism, (ja).
  6. Vasenina, E., Antonio, B. B., Schwarz, A. V., Canoy, L. A., Bradshaw, J., Stout, J. R., & Antonio, J. (2026). Mechanisms, Dosing Strategies, and Performance Effects of 5 Leading Ergogenic Supplements. Journal of Fitness, Wellness, and Human Performance, 1(aop), 1-12.
  7. Lafontant, K., Fukuda, D. H., Smith, S., Livingston, J., Barbera, M. D. S., Nguyen, N. L. N., … & Stout, J. R. (2026). Examining within-session test-retest reliability of four bioimpedance devices among adults across a wide age range. Journal of Electrical Bioimpedance, 17(1), 67-77.
  8. Lafontant, K., Leinbach, C. S., Armas, N., Maldonado, P. M., Suarez, J. R. M., Banarjee, C., … & Thiamwong, L. (2026). Associations Between Fall Risk and Lower Limb Joint Range of Motion During Sit-to-Stand Among Community-Dwelling Older Adults. Research in Health and Medicine, 6(1).

2025

  1. Sterner, D. A., Stout, J. R., Antonio, B. B., Anderson, A. T., & Fukuda, D. H. (2025). A proposed test to determine physical working capacity at pain intensity threshold (PWCPIT). European Journal of Applied Physiology, 125(1), 197-207.
  2. Lafontant, K., Livingston, J., Smith, S., Da Silva Barbera, M. A., Gonzalez, C., Kampiyil, S., … & Fukuda, D. H. (2025). Describing dietary habits and body composition among high-intensity functional training athletes: A mixed methods approach. Sports, 13(10), 340.
  3. Lebron, M. A., Starling-Smith, J. M., Hill, E. C., Stout, J. R., & Fukuda, D. H. (2025). Sex-based effects on muscle oxygenation during repeated maximal intermittent handgrip exercise. Sports, 13(2), 42.
  4. Starling-Smith, J. M., Park, J. H., Hill, E. C., Wells, A. J., Stout, J. R., & Fukuda, D. H. (2025). Reliability of an intermittent handgrip fatiguing protocol. Sport Sciences for Health, 21(1), 261-267.
  5. Vasenina, E., Sterner, D. A., Mangum, L. C., Stout, J. R., & Fukuda, D. H. (2025). Effects of vegan and omnivore diet on post-downhill running economy and muscle function. Journal of the American Nutrition Association, 44(3), 235-244.
  6. Lebron, M. A., Fukuda, D. H., Cregan, J. T., Shell, J. M., Wells, A. J., & Stout, J. R. (2025). Reliability of achieving target dehydration levels using a portable infrared sauna protocol in healthy young adults. Journal of the International Society of Sports Nutrition, 22(1), 2586598.
  7. Bergquist, A. M., Lebron, M. A., Mangum, L. C., Stout, J. R., & Fukuda, D. H. (2025). Test-Retest Reliability of Single Leg Jump Performance Using the Drift Protocol in Division I Baseball Pitchers. Journal of Science in Sport and Exercise, 7(3), 296-303.
  8. Lafontant, K., Fukuda, D. H., Zamarripa, E., Tice, A. L., Suarez, J. R. M., Banarjee, C., … & Thiamwong, L. (2025). Application of Levi’s Muscle Index in frailty assessment: comparison of bioimpedance measures among older adults. Frontiers in Medicine, 12, 1525569.

2024

  1. Mesa, M. F., Stout, J. R., Mangum, L. C., Beyer, K. S., Redd, M. J., & Fukuda, D. H. (2024). Changes in Hip Isometric Strength of Female College Soccer Players After High-Workload Training Session. Journal of Sport Rehabilitation, 33(6), 416-422.
  2. Lafontant, K., Sterner, D. A., Fukuda, D. H., Stout, J. R., Park, J. H., & Thiamwong, L. (2024). Comparing device-generated and calculated bioimpedance variables in community-dwelling older adults. Sensors, 24(17), 5626.
  3. Lebron, M. A., Stout, J. R., & Fukuda, D. H. (2024). Physiological perturbations in combat sports: Weight cycling and metabolic function—a narrative review. Metabolites, 14(2), 83.
  4. Sterner, D. A., Stout, J. R., Lafontant, K., Park, J. H., Fukuda, D. H., & Thiamwong, L. (2024). Phase angle and impedance ratio as indicators of physical function and fear of falling in older adult women: Cross-sectional analysis. JMIR aging, 7(1), e53975.
  5. Antonio, B. B., Stout, J. R., Sterner, D. A., Fukuda, D. H., & Anderson, A. W. (2024). Examining changes in pain sensitivity following 8 minutes of cycling at varying exercise intensities. International Journal of Exercise Science, 17(7), 1337.
  6. Lafontant, K., Blount, A., Suarez, J. R. M., Fukuda, D. H., Stout, J. R., Trahan, E. M., … & Thiamwong, L. (2024). Comparing sensitivity, specificity, and accuracy of fall risk assessments in community-dwelling older adults. Clinical interventions in aging, 581-588.

2023

  1. Furtado Mesa, M., Stout, J. R., Redd, M. J., & Fukuda, D. H. (2023). Accumulated workload differences in collegiate women’s soccer: Starters versus substitutes. Journal of Functional Morphology and Kinesiology, 8(2), 78.
  2. Renziehausen, J. M., Bergquist, A. M., Park, J. H., Hill, E. C., Wells, A. J., Stout, J. R., & Fukuda, D. H. (2023). Time of day effects on anaerobic performance using a nonmotorized treadmill. The Journal of Strength & Conditioning Research, 37(10), 2002-2007.
  3. Vasenina, E., Stout, J. R., & Fukuda, D. H. (2023). Tennis specialization and consequence of injury/illness following retirement. Sports, 11(5), 106.
  4. Goldstein, E. R., Stout, J. R., Wells, A. J., Antonio, J., Vasenina, E., & Fukuda, D. H. (2023). Carbohydrate-Protein drink is effective for restoring endurance capacity in masters class athletes after a two-Hour recovery. Journal of the International Society of Sports Nutrition, 20(1), 2178858.

2022

2021

  1. Guest, N. S., VanDusseldorp, T. A., Nelson, M. T., Grgic, J., Schoenfeld, B. J., Jenkins, N. D., … & Campbell, B. I. (2021). International society of sports nutrition position stand: caffeine and exercise performance.  Journal of the International Society of Sports Nutrition, 18(1), 1-37.
  2. Bear, D. E., Cruz-Jentoft, A. J., & Stout, J. R. (2021). β-hydroxy-β-methylbutyrate supplementation in older persons–an update.  Current Opinion in Clinical Nutrition & Metabolic Care, 24(1), 48-52.
  3.  Panissa, V. L. G., Fukuda, D. H., Staibano, V., Marques, M., & Franchini, E. (2021). Magnitude and duration of excess of post-exercise oxygen consumption between high-intensity interval and moderate-intensity continuous exercise: A systematic review. Obesity Reviews, 22(1), e13099.
  4. Boffey, D., Clark, N. W., & Fukuda, D. H. (2021). Efficacy of Rest Redistribution During Squats: Considerations for Strength and Sex. Journal of Strength and Conditioning Research, 35(3), 586–595.
  5. Herring, C. H., Beyer, K. S., & Fukuda, D. H. (2021). Relative Age Effects as Evidence of Selection Bias in Major League Baseball Draftees (2013-2018). Journal of Strength and Conditioning Research, 35(3), 644–651.
  6. Kreider, R. B., & Stout, J. R. (2021). Creatine in Health and Disease. Nutrients, 13(2), 447.

2020

  1. Goldstein, E. R., & Fukuda, D. H. (2020). Connecting Energy Availability and Iron Deficiency with Bone Health: Implications for the Female Athlete. Strength & Conditioning Journal, 42(4).
  2. Harat, I., Clark, N. W., Boffey, D., Herring, C. H., Goldstein, E. R., Redd, M. J., Wells, A. J., Stout, J. R., & Fukuda, D. H. (2020). Dynamic post-activation potentiation protocol improves rowing performance in experienced female rowers. Journal of Sports Sciences, 38(14), 1615–1623.
  3. Clark, N. W., Herring, C. H., Goldstein, E. R., Stout, J. R., Wells, A. J., & Fukuda, D. H. (2020). Heart Rate Variability Behavior during Exercise and Short-Term Recovery Following Energy Drink Consumption in Men and Women. Nutrients, 12(8).
  4. Wang, R., Fukuda, D. H., Cheng, P., Hu, Y., Stout, J. R., & Hoffman, J. R. (2020). Differential effects of speed on two-dimensional foot strike pattern during barefoot and shod running in recreationally active men. Sports Biomechanics, 19(4), 438–451.
  5. Morales, J., Fukuda, D. H., Curto, C., Iteya, M., Kubota, H., Pierantozzi, E., & La Monica, M. (2020). Progression of Combat Sport Activities for Youth Athletes. Strength & Conditioning Journal, 42(3).
  6. Detanico, D., Kons, R. L., Fukuda, D. H., & Teixeira, A. S. (2020). Physical Performance in Young Judo Athletes: Influence of Somatic Maturation, Growth, and Training Experience. Research Quarterly for Exercise and Sport, 91(3), 425–432.
  7. Formalioni, A., Antunez, B. F., Del Vecchio, F. B., Cabistany, L. D., Coswig, V. S., Letieri, R. V., & Fukuda, D. H. (2020). Anthropometric characteristics and physical performance of taekwondo athletes. Revista Brasileira de Cineantropometria & Desempenho Humano, 22.
  8. Franchini, E., Fukuda, D. H., & Lopes-Silva, J. P. (2020). Tracking 25 years of judo results from the World Championships and Olympic Games: Age and competitive achievement. Journal of Sports Sciences, 38(13), 1531–1538.
  9. Garcia, J. M., Lawrence, S., Brazendale, K., Leahy, N., & Fukuda, D. (2020). Brief report: The impact of the COVID-19 pandemic on health behaviors in adolescents with Autism Spectrum Disorder. Disability and Health Journal, 101021.
  10. Thiamwong, L., Huang, H. J., Ng, B. P., Yan, X., Sole, M. L., Stout, J. R., & Talbert, S. (2020). Shifting maladaptive fall risk appraisal in older adults through an in-home physio-feedback and exercise program (PEER): A pilot study. Clinical gerontologist, 43(4), 378-390.
  11. Herda, A. A., McKay, B. D., Herda, T. J., Costa, P. B., Stout, J. R., & Cramer, J. T. (2020). Changes in Strength, Mobility, and Body Composition Following Self-Selected Exercise in Older Adults. Journal of Aging and Physical Activity, 1(aop), 1-10.
  12. Thiamwong, L., Stout, J. R., Sole, M. L., Ng, B. P., Yan, X., & Talbert, S. (2020). Physio-feedback and exercise program (PEER) improves balance, muscle strength, and fall risk in older adults. Research in gerontological nursing, 13(6), 289-296.
  13. Thiamwong, L., Sole, M. L., Ng, B. P., Welch, G. F., Huang, H. J., & Stout, J. R. (2020). Assessing fall risk appraisal through combined physiological and perceived fall risk measures using innovative technology.  Journal of gerontological nursing, 46(4), 41-47.

2019

  1. Beyer, K. S., Stout, J. R., Redd, M. J., Baker, K. M., Bergstrom, H. C., Hoffman, J. R., & Fukuda, D. H. (2019). Maturity-Related Differences in Systemic Pulmonary and Localized Fatigue Threshold Among Youth Male Athletes. Pediatric Exercise Science, 31(1), 99–106.
  2. La Monica, M. B., Fukuda, D. H., Starling-Smith, T. M., Clark, N. W., Morales, J., Hoffman, J. R., & Stout, J. R. (2019). Examining work-to-rest ratios to optimize upper body sprint interval training. Respiratory Physiology and Neurobiology, 262, 12–19.
  3. Wang, R., Fukuda, D. H., Hoffman, J. R., La Monica, M. B., Starling, T. M., Stout, J. R., Kang, J., & Hu, Y. (2019). Distinct Effects of Repeated-Sprint Training in Normobaric Hypoxia and β-Alanine Supplementation. Journal of the American College of Nutrition, 38(2), 149–161.
  4. Carballeira, E., Morales, J., Fukuda, D. H., Granada, M. L., Carratalá-Deval, V., López Díaz de Durana, A., & Stout, J. R. (2019). Intermittent Cooling During Judo Training in a Warm/Humid Environment Reduces Autonomic and Hormonal Impact. Journal of Strength and Conditioning Research, 33(8).
  5. Sterkowicz-Przybycień, K., Fukuda, David. H., & Franchini, E. (2019). Meta-Analysis to Determine Normative Values for the Special Judo Fitness Test in Male Athletes: 20+ Years of Sport-Specific Data and the Lasting Legacy of Stanisław Sterkowicz. Sports, 7(8).
  6. Varanoske, A. N., Stout, J. R., & Hoffman, J. R. (2019). Effects of β-Alanine Supplementation and Intramuscular Carnosine Content on Exercise Performance and Health. In Nutrition and Enhanced Sports Performance (pp. 327-344). Academic Press.
  7. Tiller, N. B., Roberts, J. D., Beasley, L., Chapman, S., Pinto, J. M., Smith, L., … Stout, J. R.,…& Bannock, L. (2019). International Society of Sports Nutrition Position Stand: nutritional considerations for single-stage ultra-marathon training and racing.  Journal of the International Society of Sports Nutrition, 16(1), 1-23.

Contact

The Physiology of Work & Exercise Response (POWER) Laboratory is located inside the Division of Kinesiology at the Education Complex and Gym, ED 174. Several handicap parking spots are available outside.

Physiology of Work & Exercise Response (POWER) Laboratory
Education Complex and Gym, ED 174
4000 Central Florida Blvd
Orlando, FL 32816

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