All Stories

  1. Comparative Analysis of Speed-Power Performance and Sport-Specific Skills Among Elite Youth Soccer Players with Different Start Procedures

    Article • Sports, October 2025, MDPI AG

    Professor Zbigniew Waśkiewicz

  2. Relational Reflexivity in a Management Questionnaire (RRMQ): A Psychometric Approach to Measuring a Multidimensional Leadership Construct

    Article • Administrative Sciences, September 2025, MDPI AG

    Professor Zbigniew Waśkiewicz

  3. Footwear technology and biomechanical adaptations in ultramarathon running: a PRISMA-Guided narrative review integrating direct and laboratory evidence

    Article • Frontiers in Bioengineering and Biotechnology, September 2025, Frontiers

    Professor Zbigniew Waśkiewicz

  4. Coaching the Mind: Practical Guidelines for Using Soft Skills to Prepare Athletes for Competitive Events

    Article • Journal of Biathlon Coaching, September 2025, International Biathlon Union

    Professor Zbigniew Waśkiewicz

  5. Divergent Cardiac Adaptations in Endurance Sport: Atrial Fibrillation Markers in Marathon Versus Ultramarathon Athletes

    Article • Journal of Cardiovascular Development and Disease, July 2025, MDPI AG

    Professor Zbigniew Waśkiewicz

  6. From nonstarters through marathon to ultramarathon: A comparative analysis of models derived from a factor analysis of the Motivations of Marathoners Scales

    Article • Personality and Individual Differences, July 2025, Elsevier

    Professor Zbigniew Waśkiewicz

  7. Inflammatory Response to Ultramarathon Running: A Review of IL-6, CRP, and TNF-α

    Article • International Journal of Molecular Sciences, June 2025, MDPI AG

    Professor Zbigniew Waśkiewicz

  8. Socio-Demographic Influences on Dietary Habits and Nutritional Awareness: A Case Study of Polish Biathlon Association National Team Members

    Article • Nutrients, November 2024, MDPI AG

    Professor Zbigniew Waśkiewicz

  9. Motivation of Marathon and Ultra-Marathon Runners. A Narrative Review

    Article • Psychology Research and Behavior Management, June 2024, Taylor & Francis

    Professor Zbigniew Waśkiewicz

  10. Is There a Relative Age Effect among the Most Successful Track and Field Athletes?

    Article • Journal of Human Kinetics, November 2023, Termedia Sp. z.o.o.

    Professor Zbigniew Waśkiewicz

  11. Effects of new anti‐doping measures on sports performance in elite female athletes

    Article • Drug Testing and Analysis, April 2023, Wiley

    Professor Zbigniew Waśkiewicz

  12. The incidence and severity of COVID-19 in adult professional soccer players in Russia

    Article • PLOS One, June 2022, PLOS

    Professor Zbigniew Waśkiewicz

  13. Successful Young Athletes Have Low Probability of Being Ranked Among the Best Senior Athletes, but This Is Higher When Compared to Their Less Successful Peers

    Article • Frontiers in Psychology, June 2022, Frontiers

    Professor Zbigniew Waśkiewicz

  14. Running Performance during the Holy Month of Ramadan in Elite Professional Adult Soccer Players in Russia

    Article • International Journal of Environmental Research and Public Health, November 2021, MDPI AG

    Professor Zbigniew Waśkiewicz

  15. The Prevalence of Use of Various Post-Exercise Recovery Methods after Training among Elite Endurance Athletes

    Article • International Journal of Environmental Research and Public Health, November 2021, MDPI AG

    Professor Zbigniew Waśkiewicz

  16. The Influence of Endurance Training on the Lipid Profile, Body Mass Composition and Cardiovascular Efficiency in Middle-Aged Cross-Country Skiers

    Article • International Journal of Environmental Research and Public Health, October 2021, MDPI AG

    Professor Zbigniew Waśkiewicz

  17. The Consequences of Training and Competition to the Musculoskeletal System in Ultramarathon Runners: A Narrative Review

    Article • Frontiers in Physiology, September 2021, Frontiers

    Professor Zbigniew Waśkiewicz

  18. Individual and Economic Characteristics as Determinants of Brazilian Runners’ Motivation

    Article • Sustainability, September 2021, MDPI AG

    Professor Zbigniew Waśkiewicz

  19. Conservative Treatment of the Fifth Metatarsal Bone Fractures in Professional Football Players Using Platelet-Rich Plasma

    Article • Foot & Ankle Specialist, June 2021, SAGE Publications

    Professor Zbigniew Waśkiewicz

  20. The Inclusion in WADA Prohibited List Is Not Always Supported by Scientific Evidence: A Narrative Review

    Article • Asian Journal of Sports Medicine, February 2021, Kowsar Medical Institute

    Professor Zbigniew Waśkiewicz

  21. Asymptomatic Foot and Ankle Abnormalities in Elite Professional Soccer Players

    Article • Orthopaedic Journal of Sports Medicine, January 2021, SAGE Publications

    Professor Zbigniew Waśkiewicz

  22. Cold Water Swimming—Benefits and Risks: A Narrative Review

    Article • International Journal of Environmental Research and Public Health, December 2020, MDPI AG

    Professor Zbigniew Waśkiewicz, Caio Victor Sousa

  23. What Encourages Physically Inactive People to Start Running? An Analysis of Motivations to Participate in Parkrun and City Trail in Poland

    Article • Frontiers in Public Health, November 2020, Frontiers

    Professor Zbigniew Waśkiewicz

  24. The prevalence of non-contact muscle injuries of the lower limb in professional soccer players who perform Salah regularly: a retrospective cohort study

    Article • Journal of Orthopaedic Surgery and Research, September 2020, Springer Science + Business Media

    Professor Zbigniew Waśkiewicz

  25. The Impact of Family Life and Marital Status on the Motivations of Ultramarathoners: The Karkonosze Winter Ultramarathon Case Study

    Article • International Journal of Environmental Research and Public Health, September 2020, MDPI AG

    Professor Zbigniew Waśkiewicz

  26. Tribological and Mechanical Behavior of Graphite Composites of Polytetrafluoroethylene (PTFE) Irradiated by the Electron Beam

    Article • Polymers, July 2020, MDPI AG

    Professor Zbigniew Waśkiewicz

  27. Evaluation of Structure and Corrosion Behavior of FeAl Alloy after Crystallization, Hot Extrusion and Hot Rolling

    Article • Materials, April 2020, MDPI AG

    Professor Zbigniew Waśkiewicz

  28. Corrosion Resistance of Heat-Treated Ni-W Alloy Coatings

    Article • Materials, March 2020, MDPI AG

    Professor Zbigniew Waśkiewicz

  29. Novel Organic Material Induced by Electron Beam Irradiation for Medical Application

    Article • Polymers, February 2020, MDPI AG

    Professor Zbigniew Waśkiewicz

  30. Atrial Fibrillation in Athletes—Features of Development, Current Approaches to the Treatment, and Prevention of Complications

    Article • International Journal of Environmental Research and Public Health, December 2019, MDPI AG

    Professor Zbigniew Waśkiewicz

  31. Prevalence of Relative Age Effect in Russian Soccer: The Role of Chronological Age and Performance

    Article • International Journal of Environmental Research and Public Health, October 2019, MDPI AG

    Professor Zbigniew Waśkiewicz

  32. Prevalence and Treatment of Vitamin D Deficiency in Young Male Russian Soccer Players in Winter

    Article • Nutrients, October 2019, MDPI AG

    Professor Zbigniew Waśkiewicz

  33. New Kind of Polymer Materials Based on Selected Complexing Star-Shaped Polyethers

    Article • Polymers, September 2019, MDPI AG

    Professor Zbigniew Waśkiewicz

  34. The Dependence of Running Speed and Muscle Strength on the Serum Concentration of Vitamin D in Young Male Professional Football Players Residing in the Russian Federation

    Article • Nutrients, August 2019, MDPI AG

    Professor Zbigniew Waśkiewicz

  35. What Motivates Successful Marathon Runners? The Role of Sex, Age, Education, and Training Experience in Polish Runners

    Article • Frontiers in Psychology, July 2019, Frontiers

    Professor Zbigniew Waśkiewicz

  36. Left Ventricular Systolic Function Assessed by Speckle Tracking Echocardiography in Athletes with and without Left Ventricle Hypertrophy

    Article • Journal of Clinical Medicine, May 2019, MDPI AG

    Professor Zbigniew Waśkiewicz

  37. Acute Responses of Novel Cardiac Biomarkers to a 24-h Ultra-Marathon

    Article • Journal of Clinical Medicine, January 2019, MDPI AG

    Professor Zbigniew Waśkiewicz

  38. Motivation in ultra-marathon runners

    Article • Psychology Research and Behavior Management, December 2018, Dove Medical Press

    Professor Zbigniew Waśkiewicz, Dr Pantelis Theodoros Nikolaidis, Beat Knechtle

  39. Coordination Aspects of an Effective Sprint Start

    Article • Frontiers in Physiology, August 2018, Frontiers

    Professor Zbigniew Waśkiewicz

  40. The age of peak performance in women and men duathletes – The paradigm of short and long versions in “Powerman Zofingen”

    Article • Open Access Journal of Sports Medicine, July 2018, Dove Medical Press

    Dr Pantelis Theodoros Nikolaidis, Dr Luca Paolo Ardigò, Beat Knechtle, Professor Zbigniew Waśkiewicz, Elias Villiger

  41. Ultramarathon Run Markedly Reduces Plasma Sphingosine-1-phosphate Concentration

    Article • International Journal of Sport Nutrition and Exercise Metabolism, April 2014, Human Kinetics

    Professor Zbigniew Waśkiewicz

  42. Metabolic responses to a 48-h ultra-marathon run in middle-aged male amateur runners

    Article • European Journal of Applied Physiology and Occupational Physiology, September 2013, Springer Science + Business Media

    Professor Zbigniew Waśkiewicz

  43. IGF-1 Response to Arm Exercise with Eccentric and Concentric Muscle Contractions in Resistance-Trained Athletes with Left Ventricular Hypertrophy

    Article • International Journal of Sports Medicine, September 2012, Thieme Publishing Group

    Professor ALEKSANDRA Żebrowska, Professor Zbigniew Waśkiewicz

  44. Application of Regression and Neural Models to Predict Competitive Swimming Performance

    Article • Perceptual and Motor Skills, April 2012, SAGE Publications

    prof Adam Maszczyk, Professor Zbigniew Waśkiewicz

  45. Effects of stretching and strength exercises on speed and power abilities in male basketball players

    Article • Isokinetics and Exercise Science, February 2012, IOS Press

    Professor Zbigniew Waśkiewicz

  46. Acute metabolic responses to a 24-h ultra-marathon race in male amateur runners

    Article • European Journal of Applied Physiology and Occupational Physiology, August 2011, Springer Science + Business Media

    Professor Zbigniew Waśkiewicz

  47. Effects of Growth Hormone Therapy and Physical Exercise on Anaerobic and Aerobic Power, Body Composition, Lipoprotein Profile in Middle Aged Men

    Article • Journal of Human Kinetics, September 2010, Termedia Sp. z.o.o.

    Professor Zbigniew Waśkiewicz

  48. Changes in the Blood Antioxidant Defense Capacity During a 24 Hour Run

    Article • Journal of Human Kinetics, January 2010, Termedia Sp. z.o.o.

    Professor Zbigniew Waśkiewicz

  49. Lactate Threshold (D-Max Method) and Maximal Lactate Steady State in Cyclists

    Article • Journal of Human Kinetics, January 2009, Termedia Sp. z.o.o.

    Professor Zbigniew Waśkiewicz

  50. Modification of blood antioxidant status and lipid profile in response to high-intensity endurance exercise after low doses of ω-3 polyunsaturated fatty acids supplementation in healthy volunteers

    Article • International Journal of Food Sciences and Nutrition, January 2009, Taylor & Francis

    Professor Zbigniew Waśkiewicz

  51. The influence of vitamin C on blood oxidative stress parameters in basketball players in response to maximal exercise

    Article • Science & Sports, June 2008, Elsevier

    Professor Zbigniew Waśkiewicz

  52. Information Processes, Stimulation and Perceptual Training in Fencing

    Article • Journal of Human Kinetics, January 2008, Termedia Sp. z.o.o.

    Professor Zbigniew Waśkiewicz

  53. The Effects of Terminating Creatine Supplementation and Resistance Training on Anaerobic Power and Chosen Biochemical Variables in Male Subjects

    Article • Journal of Human Kinetics, January 2008, Termedia Sp. z.o.o.

    Professor Zbigniew Waśkiewicz

  54. Anaerobic Power, Creatine Kinase Activity, Lactate Concentration, and Acid-Base Equilibrium Changes Following Bouts of Exhaustive Strength Exercises

    Article • The Journal of Strength and Conditioning Research, August 2001, Wolters Kluwer Health

    Professor Zbigniew Waśkiewicz

  55. Anaerobic Power, Creatine Kinase Activity, Lactate Concentration, and Acid-Base Equilibrium Changes Following Bouts of Exhaustive Strength Exercises

    Article • The Journal of Strength and Conditioning Research, January 2001, Wolters Kluwer Health

    Professor Zbigniew Waśkiewicz

  56. The Diagnostic Value of the 10− and 30-Second Wingate Test for Competitive Athletes

    Article • The Journal of Strength and Conditioning Research, February 1999, Wolters Kluwer Health

    Professor Zbigniew Waśkiewicz