Editorial
Open Access
Coping With the “Small Sample–Small Relevant Effects” Dilemma in Elite Sport Research
Sabrina Skorski, Anne Hecksteden
Page: 1559–1560
DOI: 10.1123/ijspp.2021-0467
Brief Review
Open Access
The W′ Balance Model: Mathematical and Methodological Considerations
Philip Friere Skiba, David C. Clarke
Page: 1561–1572
DOI: 10.1123/ijspp.2021-0205
Original Investigations
Effect of Warm-Up and Sodium Bicarbonate Ingestion on 4-km Cycling Time-Trial Performance
William H. Gurton, Steve H. Faulkner, Ruth M. James
Page: 1573–1579
DOI: 10.1123/ijspp.2020-0743
The Acute Physiological and Perceptual Effects of Individualizing the Recovery Interval Duration Based Upon the Resolution of Muscle Oxygen Consumption During Cycling Exercise
Christopher R.J. Fennell, James G. Hopker
Page: 1580–1588
DOI: 10.1123/ijspp.2020-0295
Is Rating of Perceived Exertion a Valuable Tool for Monitoring Exercise Intensity During Steady-State Conditions in Elite Endurance Athletes?
Thomas Losnegard, Sondre Skarli, Joar Hansen, Stian Roterud, Ida S. Svendsen, Bent R. Rønnestad, Gøran Paulsen
Page: 1589–1595
DOI: 10.1123/ijspp.2020-0866
Comparison of Physiological and Biomechanical Responses to Flat and Uphill Cross-Country Sit-Skiing in Able-Bodied Athletes
Camilla H. Carlsen, David McGhie, Julia K. Baumgart, Øyvind Sandbakk
Page: 1596–1602
DOI: 10.1123/ijspp.2020-0752
Autonomic and Perceptual Responses to Induction of a Ketogenic Diet in Free-Living Endurance Athletes: A Randomized, Crossover Trial
Ed Maunder, Deborah K. Dulson, David M. Shaw
*Page: 1603–1609
DOI: 10.1123/ijspp.2020-0814
Aerobic and Anaerobic Power Distribution During Cross-Country Mountain Bike Racing
Bernhard Prinz, Dieter Simon, Harald Tschan, Alfred Nimmerichter
Page: 1610–1615
DOI: 10.1123/ijspp.2020-0758
M. Biceps Femoris Long Head Architecture and Sprint Ability in Youth Soccer Players
Paul Ritsche, Thomas Bernhard, Ralf Roth, Eric Lichtenstein, Martin Keller, Sabrina Zingg, Martino V. Franchi, Oliver Faude
Page: 1616–1624
DOI: 10.1123/ijspp.2020-0726
Peak Blood Lactate Concentration and Its Arrival Time Following Different Track Running Events in Under-20 Male Track Athletes
Subir Gupta, Arkadiusz Stanula, Asis Goswami
Page: 1625–1633
DOI: 10.1123/ijspp.2020-0685
Metabolic Profiles of the 30-15 Intermittent Fitness Test and the Corresponding Continuous Version in Team-Sport Athletes—Elucidating the Role of Inter-Effort Recovery
Sebastian Kaufmann, Ralph Beneke, Richard Latzel, Hanna Pfister, Olaf Hoos
Page: 1634–1639
DOI: 10.1123/ijspp.2020-0761
Heat Added to Repeated-Sprint Training in Hypoxia Does Not Affect Cycling Performance
Myles C. Dennis, Paul S.R. Goods, Martyn J. Binnie, Olivier Girard, Karen E. Wallman, Brian T. Dawson, Peter Peeling
Page: 1640–1648
DOI: 10.1123/ijspp.2020-0676
Modulators of Change-of-Direction Economy After Repeated Sprints in Elite Soccer Players
Filippo Dolci, Andrew E. Kilding, Tania Spiteri, Paola Chivers, Ben Piggott, Andrew Maiorana, Nicolas H. Hart
Page: 1649–1655
DOI: 10.1123/ijspp.2020-0740
The Relationship Between Neuromuscular Function and the W′ in Elite Cyclists
Mehdi Kordi, Len Parker Simpson, Kevin Thomas, Stuart Goodall, Tom Maden-Wilkinson, Campbell Menzies, Glyn Howatson
Page: 1656–1662
DOI: 10.1123/ijspp.2020-0861
The Metabolic Relevance of Type of Locomotion in Anaerobic Testing: Bosco Continuous Jumping Test Versus Wingate Anaerobic Test of the Same Duration
Sebastian Kaufmann, Olaf Hoos, Aaron Beck, Fabian Fueller, Richard Latzel, Ralph Beneke
Page: 1663–1669
DOI: 10.1123/ijspp.2020-0669
The Influence of Muscle Fiber Typology on the Pacing Strategy of 200-m Freestyle Swimmers
Adam Mallett, Phillip Bellinger, Wim Derave, Katie McGibbon, Eline Lievens, Ben Kennedy, Hal Rice, Clare Minahan
Page: 1670–1675
DOI: 10.1123/ijspp.2020-0725
Physical Performance Differences Between Spanish Selected and Nonselected Para-Footballers With Cerebral Palsy for the National Team
Iván Peña-González, José M. Sarabia, Alba Roldan, Agustín Manresa-Rocamora, Manuel Moya-Ramón
Page: 1676–1683
DOI: 10.1123/ijspp.2020-0842
Limiting Rise in Heat Load With an Ice Vest During Elite Female Rugby Sevens Warm-Ups
Mitchell J. Henderson, Bryna C.R. Chrismas, Christopher J. Stevens, Job Fransen, Aaron J. Coutts, Lee Taylor
Page: 1684–1691
DOI: 10.1123/ijspp.2020-0833
Risk Factors and Predictors of Hypothermia and Dropouts During Open-Water Swimming Competitions0
Joffrey Drigny, Marine Rolland, Robin Pla, Christophe Chesneau, Tess Lebreton, Benjamin Marais, Pierre Outin, Sébastien Moussay, Sébastien Racinais, Benoit Mauvieux
Page: 1692–1699
DOI: 10.1123/ijspp.2020-0875
Testosterone and Dihydrotestosterone Changes in Male and Female Athletes Relative to Training Status
Christian J. Cook, Blair T. Crewther, Liam P. Kilduff, Linda L. Agnew, Phillip Fourie, Benjamin G. Serpell
Page: 1700–1706
DOI: 10.1123/ijspp.2020-0910
Brief Reports
Effects of COVID-19 Lockdown and a Subsequent Retraining Period on Elite Athletes’ Workload, Performance, and Autonomic Responses: A Case Series
Pedro L. Valenzuela, Fernando Rivas, Guillermo Sánchez-Martínez
Page: 1707–1711
DOI: 10.1123/ijspp.2020-0735

The Effectiveness of a 30-Week Concurrent Strength and Endurance Training Program in Preparation for an Ultra-Endurance Handcycling Challenge: A Case Study
Jonpaul Nevin, Paul Smith
Page: 1712–1718
DOI: 10.1123/ijspp.2020-0749
Invited Commentary
Open Access
Managing the Training Process in Elite Sports: From Descriptive to Prescriptive Data Analytics
Kobe C. Houtmeyers, Arne Jaspers, Pedro Figueiredo
Page: 1719–1723
DOI: 10.1123/ijspp.2020-0958