Cardiovascular and thermoregulatory responses to treadmill running while wearing shirts with different fabric composition
Journal Title: Biology of Sport - Year 2007, Vol 24, Issue 2
Abstract
Clothing must be worn in many athletic and occupational situations as part of a uniform or for protection from the environment, but clothing interferes with sweat evaporation and heat dissipation. Thus, the heat dissipation qualities of clothing worn by athletes, soldiers, and others working and/or competing at moderate to high workloads is important. The purpose of this study was to determine if a synthetic shirt purported by the manufacturer to be advantageous in dissipating heat permits more effective heat dissipation than a cotton shirt during exercise in a temperate environment. Methods: Nine active males ran on a treadmill at 65% VO2peak for 45 min in 22°C while wearing cotton sweatpants and either a long-sleeve synthetic shirt (SS), cotton shirt (CS), or no shirt (NS). The first and second trials were counterbalanced, and the third trial was determined by default. At least one week lapsed between trials. Results (means ±SD): There were no differences in RPE, VO2, change in rectal temperature (ΔTre), or change in heart rate (ΔHR) between conditions (p>0.05). Final Tre in SS (38.8±0.3°C) was lower than CS (39.1±0.4°C) but not different than NS (38.9±0.2°C). Mean skin temperature was lower in NS than CS (p<0.05). Total water loss was lowest in NS (1.1±0.3L, p<0.05), while SS (1.4±0.3L) and CS (1.5±0.3L) were similar (p>0.05). Thermal sensation was lower in SS and NS than CS. Conclusion: Wearing a synthetic shirt provides a limited thermoregulatory benefit compared to a standard cotton shirt, but comfort is enhanced.
Authors and Affiliations
JE Wingo, RG McMurray
Keywords
Related Articles
- EP ID EP58910
- DOI -
- Views 127
- Downloads 0
Does overtraining occur in triathletes?
1. Objective: Long distance triathlon training is characterized by considerably high volume training loads. This volume can provoke an overtraining state. The aim of the study was to determine whether overtraining occurs...
CHANGE IN BLOOD GELSOLIN CONCENTRATION IN RESPONSE TO PHYSICAL EXERCISE
Plasma gelsolin (pGSN) produced by muscle is an abundant protein of extracellular fluids capable of severing actin filaments and eliminating actin from the circulation. Additionally, pGSN modulates the cellular effects o...
OMEGA-3 SUPPLEMENTATION ATTENUATES THE PRODUCTION OF C-REACTIVE PROTEIN IN MILITARY PERSONNEL DURING 5 DAYS OF INTENSE PHYSICAL STRESS AND NUTRITIONAL RESTRICTION
The effects of omega-3 (n-3) polyunsaturated fatty acid (PUFA) supplementation on the serum concentration of C-reactive protein (CRP) and activity of creatine kinase (CK) were investigated in military personnel. The conc...
THE EFFECT OF SKILL-BASED MAXIMAL INTENSITY INTERVAL TRAINING ON AEROBIC AND ANAEROBIC PERFORMANCE OF FEMALE FUTSAL PLAYERS
This study examined the effects of skill-based maximal intensity interval training on aerobic and anaerobic performance variables among female futsal players. The study included 12 elite female futsal players (training g...
BIOMECHANICS OF HEAD INJURY IN OLYMPIC TAEKWONDO AND BOXING
Objective: The purpose was to examine differences between taekwondo kicks and boxing punches in resultant linear head acceleration (RLA), head injury criterion (HIC15), peak head velocity, and peak foot and fist velociti...