Home > Riviste > The Journal of Sports Medicine and Physical Fitness > Fascicoli precedenti > The Journal of Sports Medicine and Physical Fitness 2016 June;56(6) > The Journal of Sports Medicine and Physical Fitness 2016 June;56(6):684-91

ULTIMO FASCICOLO
 

ARTICLE TOOLS

Estratti

THE JOURNAL OF SPORTS MEDICINE AND PHYSICAL FITNESS

Rivista di Medicina, Traumatologia e Psicologia dello Sport


Indexed/Abstracted in: Chemical Abstracts, CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 1,111


eTOC

 

ORIGINAL ARTICLES  EXERCISE PHYSIOLOGY AND BIOMECHANICS


The Journal of Sports Medicine and Physical Fitness 2016 June;56(6):684-91

lingua: Inglese

Impaired cardiorespiratory responses when wearing an upper body compression garment during recovery in a hot environment (40 ºC)

Iker LEOZ-ABAURREA 1, Nicholas TAM 2, Roberto AGUADO-JIMÉNEZ 1

1 Department of Health Sciences, Public University of Navarre, Tudela, Spain; 2 UCT/MRC Research Unit for Exercise Science and Sports Medicine, Department of Human Biology, University of Cape Town, South Africa


PDF  


BACKGROUND: Previous studies have not investigated the effects of a heat dissipating upper body compression garment (UBCG) during cycling in a hot environment. The present study examined the effects of a heat dissipating UBCG on thermoregulatory, cardiorespiratory and perceptual responses (thermal sensation and exertion scales), during cycling at a fixed workload (~50% VO2peak) and during active recovery (~25% VO2peak).
METHODS: Thirteen untrained males (mean±SD; age 21±6 years, VO2peak 53.7±5.0 ml·kg-1·min-1) completed two randomized cycling trials consisting of a 5 min rest on a cycling ergometer, followed by 4 bouts of 14 min at a fixed load + 1 min active recovery. Followed further by 10 min of active recovery. Testing occurred in a hot environment (~40±0.4 ºC, 35±2 % relative humidity, ~2.5 m·s-1 air velocity) and volunteers wore either a UBCG or non-UBCG (CON).
RESULTS: Wearing UBCG resulted in significantly smaller reduction in heart rate (31±11 bpm vs. 46±15 bpm) and higher VO2 and VCO2 values (P<0.05) during 10 min recovery period. No differences in rectal, skin and body temperature were observed during the trial between garment conditions. Clothing wetness sensation remained significantly higher wearing CON (P<0.05) during exercise although no significant differences in weight loss or in sweat rate were observed.
CONCLUSIONS: These results suggest that wearing heat dissipating UBCG had no thermoregulatory benefits during exercise and it had impaired cardiorespiratory responses during active recovery when exercising in a hot environment.

inizio pagina

Publication History

Per citare questo articolo

Corresponding author e-mail

iker.leoz@unavarra.es