The physiological and perceptual responses of restrictive heat loss attire in hot and temperate conditions A. Willmott 1, C.A. James 2, O.R. Gibson 3,

Slides:

Advertisements

Similar presentations

© 2011 National Safety Council 15-1 ENVIRONMENTAL EMERGENCIES LESSON 15.

Advertisements

Lucozade Sport Education Programme

SEHS: Option A: A2 cont’d Environmental factors part II

Chapter 12 Temperature Regulation

HEAT/HUMIDITY VS FLUID/ELECTROLYTES How we respond to the hot environment and how to stay at the top of your game. Charles Lamertina, PA-C.

Sock Material and Warm-Up Effects on Foot Temperature during Treadmill Running Tej M. Patel, 1 Nicholas J. Oestreich, 2 Mitchell L. Post, 2 Brandon J.

Age (yr) Height (cm) Fat (%) Weight (kg) HR Max (beat min -1 ) VO 2 max (mL∙kg -1 ∙min -1 ) Mean SD THE CARDIOVASCULAR.

Exercise Thermoregulation, Fluid Balance, and Rehydration Chapter 10 Part 2.

Exercise and Weight Control Dr. David L. Gee FCSN 446/PE 446 Nutrition, Weight Control, and Exercise.

AIS Chapter 9 Heat. Heat Exchange During Exercise.

Metabolic Rate It is the rate of energy production within the body. ATP molecules are the unit of biologic energy. ATP is converted to ADP to release energy,

Fluid Retention/Regulation Pages Water Loss in Heat:Dehydration Dehydration is an imbalance in fluid dynamics when fluid intake does not replenish.

The Effect of Exercise Induced Muscle Damage and Inflammation on Subsequent Thermoregulation During Exercise in the Heat Introduction Athletes and military.

Richard Screnci.  Athletes suffer from eating disorders, dehydration, overtraining, and improper body movements.  Technology allows us to monitor these.

TRAINING AND RACING IN HEAT AND HUMIDITY Michael Turnbull 8 th October 2005.

 hydrotherapy  cryotherapy (ice packs, pool sessions, ice baths, ice vests)  hot and cold contrast therapy  spas and mineral springs (balneotherapy)

HOT COMPETITION If you can’t stand the heat…….. Performance Impairment Loss of fluid, as well as wider distribution throughout the body of the already.

Chapter 12 Temperature Regulation

Testing & Physiology of Cyclists. What is Fitness? Physical Fitness: Attributes that allow the performance of physical activity/exercise. Physical Activity:

CHANGING WORLDS The Impact of University Research.

Conduction Convection Evaporation Protection Weight factor Thickness (mm) Weight (g/100cm 2 ) Thermal conductivity (W/m°C) Body movement, temperature,

Environment Brooks Ch 22 OUTLINE Environmental Heat Environmental Cold

Thermoregulation Control of an organism’s temperature within a functional range.

Chapter 9: Water Requirement and Fluid Balance Lecture 6.1

Heat Illness & Hydration John Neidecker, DO, ATC Sports Medicine Physician Cooper Bone & Joint Institute.

Table I. Body mass and body fat percentage of elite mountaineers (mean  s). df = 8 for all analyses (paired t-test) Changes In Body Composition Of Elite.

Nihilvolentibusarduum Effects of different local cooling applications on the endurance capacity during cycling Hohenauer E. 1, Clijsen R. 1, Cabri J. 2,

Synergic effect of exercise and nutrition intervention on disease model Wook Song, Ph.D. Health & Exercise Science Laboratory Institute of Sport Science.

EDU2EXP Exercise & Performance Preparatory Lecture Effects of Environment on performance.

Effects of Inspiratory Muscle Training on Inspiratory Muscle Fatigue and Breathlessness During Exercise in Hypoxia. Seims, AL, O’Hara, JP, Cooke CB and.

Exertional Heat Illness

Environment and Exercise Chapter 17. Learning Objectives Know the basic physiological responses to exercise in cold and hot environments. Understand specific.

Can physiological indices of fitness predict competitive national rank in high performance junior British surfers? Barlow, M.J. 1 ; Findlay, M. 1 ; Gresty,

Tabata Interval Exercise: Energy Expenditure and Post-Exercise Responses Michele Olson, PhD, FACSM Scharff-Olson Kinesiology Lab, Auburn University Montgomery,

Measures  Anthropometric Measures including height and weight  InBody 770 body composition assessment specifically for percent body fat and visceral.

Results Figure 2 – RPE during the 3000 m TTs Figure 3 – TT Performance time between experimental trials. BR supplementation did not significantly improve.

ABSTRACT INTRODUCTION Mental Fatigue and the Effects on Anaerobic Power Output J. Zepernick 1, N. VanDomelen 1, K. De Jong 1, C. Nilson 1, K. Long 1, E.

Hydration of wildland firefighters (WLFF) during heat acclimation trials may impact performance by reducing physiological strain. By inducing dehydration.

Cooling Improves Table Tennis Performance amongst Elite Young Players Introduction Table tennis is a short, intermittent, high intensity sport where aerobic.

Exercise in the Hyperthermic conditions  Identify real-life examples of sport in hot conditions.  Examine methods of heat loss.  Examine the effects.

THE USE OF FATIGUE AND POWER AS EARLY INDICATORS OF OVERTRAINING IN FEMALE RUNNERS Justin Nicoll1, Disa L. Hatfield1, Ryan Keith1, Kathleen Melanson2,

Characteristic Results Water temperature (C°)

ASSESSING THE RELATIONSHIP BETWEEN EXERCISE EFFICIENCY AND MITOCHONDRIAL ENERGY TURNOVER IN ATHLETES USING NEAR-INFRARED SPECTROSCOPY Ciaran O’Grady1.

An Investigation into METs expenditure during circuit exercise

Subject characteristics

Montmorency Tart Cherry Concentrate Attenuates Inflammatory Response and Muscle Function Decline Following High-intensity Stochastic Cycling Phillip G.

Appropriateness of the metabolic equivalent (MET) as an estimate of

The effects of partial sleep restriction on biomechanical, physiological and perceptual responses during an early morning cycling time trial Dale Edwards;

Effects of frequent away travel on training loads, recovery and injury in professional Australian soccer players Peter Fowler1, Rob Duffield2, Adam Waterson3.

Acute Responses of KB-Specific Workouts (Mean ± SD)

John Bateman, The Influence of Positional Biomechanics on Gross Efficiency within Cycling John Bateman,

Effect of Short-Term Plyometric Training on Speed, Strength and Power.

Effects of Whole Body Heating During Warm-up on Strength, Power, and Flexibility Trevor Krzyzanowski, Caleb Ross, Daniel Newmire, Dustin Slivka University.

Edward S. Potkanowicz, Ph.D., ACSMEP-C Ohio Northern University

1 University of Chichester, Chichester UK

The University of Alabama, Tuscaloosa, AL

The University of Alabama, Tuscaloosa, AL

Keshia Brennan, Rachael Dawe, Alice Fisher-Edwards & Lisa Board

The New Power-Duration Model in WKO4

Muscular Fatigue Mechanisms

Comparison of heat loss with a wetsuit vs. without

Environmental Factors and Exercise

KINETIC TERMS 10/16/07.

Early strength training in cardiac surgery: how and what evidence?

A.M. CLARKE-CORNWELL1, P.A. COOK1 and M.H.GRANAT1

Types of training programs and periodization

Thermal comfort Factors

Complete chart for 18 minutes

The effects of nitrate supplementation on Yo-Yo intermittent recovery test performance with female university level athletes Fiona McGinnes1, Melissa.

Presentation transcript:

The physiological and perceptual responses of restrictive heat loss attire in hot and temperate conditions A. Willmott 1, C.A. James 2, O.R. Gibson 3, M. Hayes 1, J. Dekerle 1 & N.S. Maxwell 1 1 Centre for Sport and Exercise Science and Medicine (SESAME), University of Brighton, Eastbourne, UK. 2 National Sports Institute of Malaysia, Institut Sukan Negara, Bukit Jalil Stadium, Kuala Lumpur, Malaysia. 3 Centre for Human Performance, Exercise and Rehabilitation (CHPER), Brunel University London, UK. Introduction Results Heat acclimation (HA), by definition(1), typically occurs within environmental chambers which may be impractical, precluding use of the intervention. Alternative methods to induce physiological strain sufficient to acquire the HA phenotype include hot water bathing(2), sauna use(3), and restricting evaporative heat loss before(4), or during exercise(5). PURPOSE: Investigate the efficacy of an inexpensive and practical sauna suit across hot and temperate conditions to induce equivalent physiological strain to HA. HYPOTHESIS: Wearing a sauna suit in temperate conditions would elicit similar physiological strain to that of hot conditions without a sauna suit. Temperate conditions without the sauna suit, and hot conditions with the sauna suit would elicit the least & greatest physiological strain respectively. Core temperature ∆ was higher in TEMPSAUNA (+1 .7 ±0.4 °C.hr-1), HOT (+1.9 ±0.5 °C.hr-1) and HOTSAUNA (+2.3 ±0.5 °C.hr-1) than TEMP (+1.3 ±0.3 °C.hr-1). Mean skin temperature was higher in HOT (34.8 ±0.9°C) and HOTSAUNA (36.0 ±0.8°C) than TEMP (32.2 ±1.8°C) and TEMPSAUNA (32.1 ±0.5°C). Methods Ten moderately trained individuals (6M, 4F; mass 69.4 ± 7.5 kg; stature 175 ± 9 cm; body fat, 19.2 ± 7.2 %). 4 randomised exercise sessions of 30min (15min at 2 W.kg-1 then 15min at 1 W.kg-1) Temperate (TEMP, 22°C & 45%) Temperate whilst wearing a vinyl sauna suit (TEMPSAUNA, 22°C & 45%) Hot (HOT, 45°C & 20%) Hot whilst wearing a vinyl sauna suit (HOTSAUNA, 45°C & 20%) a = TEMP vs HOTSAUNA. d = TEMP, TEMPSAUNA vs HOT, HOTSAUNA. f = HOT SAUNA vs TEMP, TEMPSAUNA. b = TEMP vs HOT. c = HOTSAUNA vs TEMP, TEMPSAUNA, HOT. e = HOT vs HOTSAUNA. g = TEMP vs TEMPSAUNA. h = HOT vs HOT SAUNA Peak HR was higher (p<0.05) in HOTSAUNA (171 ±18 b.min-1) than TEMP (151 ±20 b.min-1). There was no difference between TEMPSAUNA (155 ±23 b.min-1) and HOT (163 ±18 b.min-1) . Fig 2. * * Sweating increased (p<0.05) in TEMPSAUNA (0.9 ±0.2 L.hr-1), HOT (1.1 ±0.5 L.hr-1) and HOTSAUNA (1.5 ± 0.5L.hr-1) vs TEMP (0.6 ± 0.7L.hr-1). # Perceived exertion was higher (p<0.05) in HOT (15 ±1) and HOTSAUNA (16 ±1) than TEMPSAUNA (14 ±1) and TEMP (14 ±1). * Thermal Sensation was greater (p<0.05) in TEMPSAUNA (5.2 ±0.4), HOT (5.7 ±0.4) and HOTSAUNA (6.1 ±0.3) than TEMP (4.8 ±0.5). * Thermal Comfort was greater (p<0.05) in TEMPSAUNA (3 ±1), HOT (3 ±1) and HOTSAUNA (4 ±1) than TEMP (2 ±1). Conclusions Wearing sauna suits to restrict heat loss during exercise in temperate conditions increases physiological strain and thermal perception to a comparable magnitude of equivalent exercise in a typical HA environment. Such methods in hot conditions further increases physiological and perceptual strain and may make HA more efficient. Wearing sauna suits during training in temperature conditions could be a viable alternative to environmental chambers. 1. Taylor NAS. Human Heat Adaptation. Compr Physiol. 2014 Jan 17;4(325–65 2. Zurawlew MJ, Walsh NP, Fortes MB, Potter C. Post‐exercise hot water immersion induces heat acclimation and improves endurance exercise performance in the heat. Scand J Med Sci Sports. 2015 Dec 1;26(7):745–754. 3. Scoon GSM, Hopkins WG, Mayhew S, Cotter JD. Effect of post-exercise sauna bathing on the endurance performance of competitive male runners. J Sci Med Sport. 2007 Aug;10(4):259–62. 4. Mee J, Peters S, Doust J, Maxwell N. Restricted sweat evaporation preceding short term heat acclimation accelerates adaption in females. Extrem Physiol Med. BioMed Central Ltd; 2015 Sep 14;4(Suppl 1):A112. 5. Steele J, Ely B, Minson C. Over-dressing during exercise in temperate environmental conditions mimics physiological strain of exercise in the heat. International Journal of Exercise Science: Conference Proceedings. 2015. p. 18.