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Resting Hormone Alterations and Injuries: Block vs. DUP Weight-Training among D-1 Track and Field Athletes
  • Keith B. Painter, East Tennessee State University
  • G. Gregory Haff, Edith Cowan University
  • N. Travis Triplett, Appalachian State University
  • Charles Stuart, East Tennessee State University
  • Guy Hornsby, West Virginia University
  • Mike W. Ramsey, East Tennessee State University
  • Caleb D. Bazyler, East Tennessee State University
  • Michael H. Stone, East Tennessee State University
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Daily undulating periodization (DUP), using daily alterations in repetitions, has been advocated as a superior method of resistance training, while traditional forms of programming for periodization (Block) have been questioned. Nineteen Division I track and field athletes were assigned to either a 10-week Block or DUP training group. Year and event were controlled. Over the course of the study, there were four testing sessions, which were used to evaluate a variety of strength characteristics, including maximum isometric strength, rate of force development, and one repetition maximum (1RM). Although, performance trends favored the Block group for strength and rate of force development, no statistical differences were found between the two groups. However, different (p ≤ 0.05) estimated volumes of work (VL) and amounts of improvement per VL were found between groups. Based upon calculated training efficiency scores, these data indicate that a Block training model is more efficient in producing strength gains than a DUP model. Additionally, alterations in testosterone (T), cortisol (C) and the T:C ratio were measured. Although there were no statistically (p ≤ 0.05) different hormone alterations between groups, relationships between training variables and hormone concentrations including the T:C ratio, indicate that Block may be more efficacious in terms of fatigue management.

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© 2018 by the authors. This document was originally published in Sports.

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Citation Information
Keith B. Painter, G. Gregory Haff, N. Travis Triplett, Charles Stuart, et al.. "Resting Hormone Alterations and Injuries: Block vs. DUP Weight-Training among D-1 Track and Field Athletes" Sports Vol. 6 Iss. 1 (2018) p. 3 ISSN: 2075-4663
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