Potential utility of a loaded treadmill protocol for tactical athletes

James T. Swearingen, Lawrence W. Weiss, Webb Smith, Mark D. Stephenson, Brian K. Schilling

Research output: Contribution to journalArticle

Abstract

Aerobic capacity is an important variable for tactical athletes, with VO2max being the most direct way of estimating it in a laboratory setting. A mode-specific protocol involving fixed-weight, torso-borne loads was assessed in the current study. On 4 separate days, 15 men (age 22.1 ± 2.7 years, mass 85.1 ± 10.6 kg, height 179.0 ± 7.7 cm) performed a weighted treadmill walking protocol (2 trials) and a nonweighted treadmill running protocol (2 trials). Both the weighted and nonweighted protocols were reliable, with intraclass correlation coefficient values of 0.79 and 0.87, respectively. VO2peak values from both protocols were highly correlated (r = 0.90, p < 0.01). However, VO2peak was higher during the nonweighted protocol (t = 7.547, d = 2.47, p < 0.01). Work rate was calculated for both the last completed stage and stage during which participants reached fatigue. Work rates for both protocols on the last completed stage were similar (t = 1.44, d = 0.83, p = 0.17), although the work rate for the final attempted stage was greater for the weighted-walking protocol (t = 5.85, d = 3.60, p < 0.01). These data suggest a weighted-walking VO2peak that is highly associated with a running VO2peak. This test may be applied to those who routinely perform torso-borne load carriage, such as tactical athletes. Future weighted-walking protocols should seek achieve higher resolution, especially near the end stage of the test where subjects reach volitional fatigue. Large increases in work rate may not be feasible at the end stages of the test.

Original languageEnglish (US)
Pages (from-to)610-616
Number of pages7
JournalJournal of strength and conditioning research
Volume32
Issue number3
StatePublished - Mar 1 2018

Fingerprint

Athletes
Walking
Torso
Clinical Protocols
Running
Fatigue
Weights and Measures

All Science Journal Classification (ASJC) codes

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

Cite this

Swearingen, J. T., Weiss, L. W., Smith, W., Stephenson, M. D., & Schilling, B. K. (2018). Potential utility of a loaded treadmill protocol for tactical athletes. Journal of strength and conditioning research, 32(3), 610-616.

Potential utility of a loaded treadmill protocol for tactical athletes. / Swearingen, James T.; Weiss, Lawrence W.; Smith, Webb; Stephenson, Mark D.; Schilling, Brian K.

In: Journal of strength and conditioning research, Vol. 32, No. 3, 01.03.2018, p. 610-616.

Research output: Contribution to journalArticle

Swearingen, JT, Weiss, LW, Smith, W, Stephenson, MD & Schilling, BK 2018, 'Potential utility of a loaded treadmill protocol for tactical athletes', Journal of strength and conditioning research, vol. 32, no. 3, pp. 610-616.
Swearingen JT, Weiss LW, Smith W, Stephenson MD, Schilling BK. Potential utility of a loaded treadmill protocol for tactical athletes. Journal of strength and conditioning research. 2018 Mar 1;32(3):610-616.
Swearingen, James T. ; Weiss, Lawrence W. ; Smith, Webb ; Stephenson, Mark D. ; Schilling, Brian K. / Potential utility of a loaded treadmill protocol for tactical athletes. In: Journal of strength and conditioning research. 2018 ; Vol. 32, No. 3. pp. 610-616.
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