Muscle-damaging exercise 48h prior to a maximal incremental exercise treadmill test reduces time to exhaustion : is it time to reconsider our pretest procedures?

Bryna Catherine Rose Chrismas, Lee Taylor, Jason Charles Siegler, Adrian Wayne Midgley

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Pretest guidelines typically stipulate that no exercise should be performed 48 h prior to a maximal incremental exercise (MIE) test. However, no study has specifically investigated if this timescale alters key outcome variables associated with MIE. Twenty apparently healthy males split into two equal groups performed MIE during three visits (visits 1 – MIEEXP1, 2 – MIEEXP2 and 4 – MIEEXP3). The experimental group only, performed muscle-damaging exercise during visit 3. From (Formula presented.)EXP2 to MIEEXP3 average time to exhaustion (TTE) decreased by 45 s (9%) (p < 0.01), maximum blood lactate decreased by 1.2 mmol/L (11%) (p = 0.03), and perceived readiness decreased by 8 mm (18%) (p = 0.01). There were no changes in any MIE variables in the control group (p ≥ 0.37). Performing MIE 48 h following muscle-damaging exercise impairs specific, but not all, physiological outcome variables.
Original languageEnglish
Pages (from-to)11-25
Number of pages15
JournalResearch in Sports Medicine
Volume25
Issue number1
DOIs
Publication statusPublished - 2017

Keywords

  • exercise
  • heart beat
  • muscles
  • physiological aspects
  • sports medicine

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