Volume 13, Issue 4 (2020) Fitness Assessment

Original Research


Reliability and Test-Retest Agreement of Mechanical Variables Obtained During Countermovement Jump
Alisson Alves Souza, Martim Bottaro, Valdinar Araujo Rocha Jr, Victor Lage, James J. Tufano, and Amilton Vieira


In-Season Hip Thrust vs. Back Squat Training in Female High School Soccer Players
Nicole A. Millar, Lauren M. Colenso-Semple, Robert G. Lockie, Risto H.J. Marttinen, and Andrew J. Galpin


Young Adults Performance of Unipedal Dynamic Balance with Various Footwear Conditions
Barbara Smith, Alice Hartman, David Martin, Jeremy Milford, Jacob Simmonds, and Chris Truong


Accuracy Assessment of a GPS Device for Maximum Sprint Speed
Kathryn Alphin, Olivia Sisson, Brynn L. Hudgins, Catherine D. Noonan, and Jennifer A. Bunn


The Relationship Between Physical Characteristics and Maximal Strength in Men Practicing the Back Squat, the Bench Press and the Deadlift
Pierre-Marc Ferland, Alexander C. Pollock, Ryan Swope, Mark Ryan, Michael Reeder, Kristin J. Heumann, and Alain-Steve Comtois


The Effect of Static Stretching, Mini-Band Warm-Ups, Medicine-Ball Warm-Ups, and a Light Jogging Warm-Up on Common Athletic Ability Tests
Bryan Christensen, Colin W. Bond, Ryan Napoli, Kelly Lopez, Jason Miller, and Kyle J. Hackney


Ground Contact Time Imbalances Strongly Related to Impaired Running Economy
Dustin P. Joubert, Nicholas A. Guerra, Eric J. Jones, Erica G. Knowles, and Aaron D. Piper


Estimation of Body Fat Percentage in Jockeys: Implications for a Weight Category Sport
Arthur Dunne, Giles Warrington, Gillian O'Loughlin, Siobhan O'Connor, Michael Harrison, Adrian McGoldrick, Jennifer Pugh, and Sarahjane Cullen

Review Article


Measuring Physical Activity Using Triaxial Wrist Worn Polar Activity Trackers: A Systematic Review
André Henriksen, Jonas Johansson, Gunnar Hartvigsen, Sameline Grimsgaard, and Laila A. Hopstock


T. Scott Lyons, PhD, FACSM
Western Kentucky University

Executive Editors

James W. Navalta, PhD, FACSM
University of Nevada - Las Vegas
Whitley Stone, PhD
Western Kentucky University

Editor Emeritus

Brian K. McFarlin, PhD, FACSM
University of North Texas
View Full Editorial Board


The International Journal of Exercise Science is indexed by the following services:

PubMed Central



Google Scholar

There is a fee to be indexed in PubMed Central. Beginning April 1, 2019, authors agree to pay the following indexing fee if the article is accepted for publication: $150USD if a student is the primary author, $300USD if a professional is the primary author. The other indexing services are free of charge.