Sports, Exercise & Health Science SL
Sports, Exercise & Health Science SL
18
Chapters
196
Notes
Chapter 1 - Musculoskeletal Anatomy
Chapter 1 - Musculoskeletal Anatomy
Chapter 2 - Cardio - Respiratory Exercise Physiology
Chapter 2 - Cardio - Respiratory Exercise Physiology
Chapter 3 - Nutrition & Energy Systems
Chapter 3 - Nutrition & Energy Systems
Chapter 4 - Movement Analysis
Chapter 4 - Movement Analysis
Chapter 5 - Skill In Sport
Chapter 5 - Skill In Sport
Chapter 6 - Measurement & Evaluation Of Human Performance
Chapter 6 - Measurement & Evaluation Of Human Performance
Chapter 7 - Training To Optimize Physiological Performance
Chapter 7 - Training To Optimize Physiological Performance
Chapter 8 - Environmental Factors & Performance
Chapter 8 - Environmental Factors & Performance
Chapter 9 - Non-Nutritional Ergogenic Aids
Chapter 9 - Non-Nutritional Ergogenic Aids
Chapter 10 - Individual Differences In Sport
Chapter 10 - Individual Differences In Sport
Chapter 11 - Motivation In Sport & Exercise
Chapter 11 - Motivation In Sport & Exercise
Chapter 12 - Arousal, Anxiety & Performance
Chapter 12 - Arousal, Anxiety & Performance
Chapter 13 - Psychological Skills Training
Chapter 13 - Psychological Skills Training
Chapter 14 - Overtraining, Stress & Burnout In Adolescent Athletes
Chapter 14 - Overtraining, Stress & Burnout In Adolescent Athletes
Chapter 15 - Physical Activity & Health
Chapter 15 - Physical Activity & Health
Chapter 16 - Nutrition For Sport & Exercise
Chapter 16 - Nutrition For Sport & Exercise
Chapter 17 - Internal Assessment & Practical Work
Chapter 17 - Internal Assessment & Practical Work
Chapter 18 - Perparing for your exams
Chapter 18 - Perparing for your exams
IB Resources
Chapter 8 - Environmental Factors & Performance
Sports, Exercise & Health Science SL
Sports, Exercise & Health Science SL

Chapter 8 - Environmental Factors & Performance

Maximize Exercise Benefits In Cold Weather Without Risking Injury

Word Count Emoji
669 words
Reading Time Emoji
4 mins read
Updated at Emoji
Last edited on 14th Jun 2024

Table of content

Cold-wet injuries

  • Heat Loss Mechanisms: In cold environments, your body loses heat primarily through radiation and sweat evaporation. However, when skin and clothes are wet, heat conduction away from the body increases, causing faster heat loss.
  • Water vs Air: You lose heat more quickly in water than in air of the same temperature due to the increased contribution of convective heat loss, especially when there's water movement over the body.
  • Water Temperature Tolerance: Individuals have different tolerances for water temperature; body heat loss from conduction is greatest during immersion in cold water. Water temperature and exposure duration are key predictors of cold-wet injuries.

Too cold to exercise?

  • Breathing Cold Air: Exercising in the cold means breathing cold and dry air, which must be warmed and humidified before entering the lungs. This can trigger asthma attacks in asthmatic individuals and those with exercise-induced asthma.
  • Exercise-Induced Asthma: A study by Stenstrud et al. (2007) found that individuals with exercise-induced asthma had a lower maximum oxygen uptake and slower running speeds in a cold air environment (–18°C) compared to a 20°C environment.
  • Hydration in Cold: High ventilation rates during exercise in cold air temperatures can result in significant heat loss and potentially dehydration. Therefore, ensuring adequate hydration is important during exercise in the cold.

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IB Resources
Chapter 8 - Environmental Factors & Performance
Sports, Exercise & Health Science SL
Sports, Exercise & Health Science SL

Chapter 8 - Environmental Factors & Performance

Maximize Exercise Benefits In Cold Weather Without Risking Injury

Word Count Emoji
669 words
Reading Time Emoji
4 mins read
Updated at Emoji
Last edited on 14th Jun 2024

Table of content

Cold-wet injuries

  • Heat Loss Mechanisms: In cold environments, your body loses heat primarily through radiation and sweat evaporation. However, when skin and clothes are wet, heat conduction away from the body increases, causing faster heat loss.
  • Water vs Air: You lose heat more quickly in water than in air of the same temperature due to the increased contribution of convective heat loss, especially when there's water movement over the body.
  • Water Temperature Tolerance: Individuals have different tolerances for water temperature; body heat loss from conduction is greatest during immersion in cold water. Water temperature and exposure duration are key predictors of cold-wet injuries.

Too cold to exercise?

  • Breathing Cold Air: Exercising in the cold means breathing cold and dry air, which must be warmed and humidified before entering the lungs. This can trigger asthma attacks in asthmatic individuals and those with exercise-induced asthma.
  • Exercise-Induced Asthma: A study by Stenstrud et al. (2007) found that individuals with exercise-induced asthma had a lower maximum oxygen uptake and slower running speeds in a cold air environment (–18°C) compared to a 20°C environment.
  • Hydration in Cold: High ventilation rates during exercise in cold air temperatures can result in significant heat loss and potentially dehydration. Therefore, ensuring adequate hydration is important during exercise in the cold.

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