title: Muscle-damaging exercise 48 h prior to a maximal incremental exercise treadmill test reduces time to exhaustion: is it time to reconsider our pretest procedures?
abstract: Pretest guidelines typically stipulate that no exercise should be performed 48 h prior to a maximal incremental exercise [Formula: see text] test. However, no study has specifically investigated if this timescale alters key outcome variables associated with [Formula: see text]. Twenty apparently healthy males split into two equal groups performed [Formula: see text] during three visits (visits 1 - [Formula: see text]EXP1, 2 - [Formula: see text]EXP2and 4 - [Formula: see text]EXP3). The experimental group only, performed muscle-damaging exercise during visit 3. From [Formula: see text]EXP2to [Formula: see text]EXP3average 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 [Formula: see text] variables in the control group (p ≥ 0.37). Performing [Formula: see text] 48 h following muscle-damaging exercise impairs specific, but not all, physiological outcome variables.
authors.affiliation: a Sport Science Program, College of Arts and Sciences , Qatar University , Doha , Qatar.
authors.forename: Bryna Catherine
authors.initials: BC
authors.lastname: Rose Chrismas
authors.affiliation: b Institute of Sport and Physical Activity Research (ISPAR), Department of Sport Science and Physical Activity , University of Bedfordshire , Bedford , UK.
authors.forename: Lee
authors.initials: L
authors.lastname: Taylor
authors.affiliation: c School of Science & Health , University of Western Sydney , Sydney , Australia.
authors.forename: Jason Charles
authors.initials: JC
authors.lastname: Siegler
authors.affiliation: d Department of Sport & Physical Activity , Edge Hill University , Ormskirk , UK.
authors.forename: Adrian Wayne
authors.initials: AW
authors.lastname: Midgley
mesh_terms: D000293:Adolescent; D000328:Adult; D005080:Exercise Test / Q000379:methods*; D064368:Healthy Volunteers; D006801:Humans; D016014:Linear Models; D008297:Male; D009119:Muscle Contraction / Q000502:physiology; D018763:Muscle Fatigue / Q000502:physiology*; D053581:Muscle Strength Dynamometer; D018482:Muscle, Skeletal / Q000502:physiology / Q000503:physiopathology; D063806:Myalgia / Q000209:etiology* / Q000503:physiopathology; D010101:Oxygen Consumption; D012420:Running / Q000502:physiology*; D055815:Young Adult
keywords: Exercise-induced muscle damage; VO2max; delayed onset muscle soreness; running; time to exhaustion