Exercise-induced Immunosuppression Counter-measures
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Questions and Answers

What is an example of clothing that offers more sun protection according to the text?

  • Cotton
  • Denim
  • Polyester (correct)
  • Silk
  • What level of sun protection do many fabrics provide, as mentioned in the text?

  • SPF 30
  • SPF 5
  • SPF 50
  • SPF 15 (correct)
  • Which type of eyewear offers the best total protection for the eyes?

  • Contact lenses
  • Sunglasses without UV protection
  • Reading glasses
  • Ski goggles (correct)
  • What consequence can result from UV-induced immunosuppression according to the text?

    <p>Decreased allergic response</p> Signup and view all the answers

    Why is it recommended that athletes use physical barriers or avoid the sun?

    <p>To prevent UV-induced immunosuppression</p> Signup and view all the answers

    What is one of the unique challenges faced by athletes training at high altitude?

    <p>Altitude illness</p> Signup and view all the answers

    Why was the position statement commissioned by the Canadian Academy of Sport and Exercise Medicine?

    <p>To provide evidence-based best practices for altitude training</p> Signup and view all the answers

    What is a key component of many athlete training plans that involves altitude?

    <p>Training intensity alterations</p> Signup and view all the answers

    What may some strategies used at altitude have implications for from an anti-doping viewpoint?

    <p>Nutritional supplements</p> Signup and view all the answers

    Why have sojourns to altitude for training and competition become increasingly common over the past 25 years?

    <p>As a result of advancements in altitude training research</p> Signup and view all the answers

    What is the recommended counter-measure to decrease exercise-induced immunosuppression?

    <p>Obtaining the influenza vaccine during the winter</p> Signup and view all the answers

    What is hypothesized to be protective against UV-induced damage and immunosuppression?

    <p>Antioxidant rich diet including selenium, fish oil, or vitamin E</p> Signup and view all the answers

    Which type of beverages may boost the humoral immune system according to the text?

    <p>Carbohydrate beverages</p> Signup and view all the answers

    What is NOT recommended as a counter-measure to decrease exercise-induced immunosuppression?

    <p>High dose vitamin C</p> Signup and view all the answers

    What is a recommended measure for athletes going to high-altitude venues in foreign countries?

    <p>Following travel medicine guidelines for vaccination</p> Signup and view all the answers

    Which medication mentioned in the text may reduce the incidence of high-altitude pulmonary edema?

    <p>Nifedipine</p> Signup and view all the answers

    Which medication improves maximal exercise capacity of individuals susceptible to high altitude pulmonary edema?

    <p>Dexamethasone</p> Signup and view all the answers

    In the study mentioned in the text, what was compared for prophylaxis against high altitude headache in a double-blind randomized trial?

    <p>Acetazolamide and Ibuprofen</p> Signup and view all the answers

    Which medication mentioned in the text is used for the prevention of high-altitude pulmonary edema?

    <p>Salmeterol</p> Signup and view all the answers

    What did the study by Sporer et al. investigate in relation to exercise performance?

    <p>Inhaled salbutamol</p> Signup and view all the answers

    What are some negative impacts individuals at altitude may experience?

    <p>Compromised immune system</p> Signup and view all the answers

    Which of the following is a purpose of the position statement mentioned in the text?

    <p>Present strategies for health and performance at altitude</p> Signup and view all the answers

    Who is the Corresponding Author of the position statement discussed in the text?

    <p>Michael S. Koehle</p> Signup and view all the answers

    What classification of altitude will the paper follow?

    <p>Classifications of Batsch et al</p> Signup and view all the answers

    What is NOT a potential negative impact mentioned for individuals at altitude?

    <p>Enhanced performance</p> Signup and view all the answers

    What can help improve sleep by staving off hunger?

    <p>Consuming a light bedtime snack</p> Signup and view all the answers

    How long does it typically take to fully acclimatize to one time zone?

    <p>One day</p> Signup and view all the answers

    What behavior should travelers adopt once aboard an aircraft to manage jet lag?

    <p>Adjust time-keeping devices to destination time zone</p> Signup and view all the answers

    Which medication is mentioned as having a theoretical risk of worsening night-time oxygenation and increasing altitude illness risk?

    <p>Temazepam</p> Signup and view all the answers

    What is recommended if an athlete has layovers during the day while traveling?

    <p>Engage in activity in the presence of natural daylight</p> Signup and view all the answers

    What is the primary adaptation the body makes in response to lower oxygen levels at altitude?

    <p>Increasing ventilation</p> Signup and view all the answers

    Which adaptation has a significant impact on recovery, sleep, and exercise performance at altitude?

    <p>Improvement in SaO2</p> Signup and view all the answers

    What did Townsend et al. find regarding exercise ventilation after 20 nights of live high-train low?

    <p>Increase in exercise ventilation</p> Signup and view all the answers

    What was the result of brief exposures to 4500 m for 7 days according to Katayama et al.?

    <p>Enhanced HVR</p> Signup and view all the answers

    What is the key factor that determines if a change in resting HVR impacts exercise ventilation?

    <p>Time spent at altitude</p> Signup and view all the answers

    What is the main focus of Nieman's study on marathon training and immune function?

    <p>The impact of altitude training on marathon runners' immune response</p> Signup and view all the answers

    Based on the text, what is a key factor influencing the variances in the acute inflammatory response to prolonged cycling?

    <p>The intensity of the exercise during prolonged cycling</p> Signup and view all the answers

    What is the main focus of the study by Wilber on altitude/hypoxic training by elite athletes?

    <p>The application and benefits of altitude/hypoxic training for elite athletes</p> Signup and view all the answers

    What aspect of training at high altitude was investigated by Gore et al. in their preparation for football competition study?

    <p>The physiological adaptations of football players to high-altitude conditions</p> Signup and view all the answers

    In Nieman's perspective on exercise immunology as mentioned in the text, what is emphasized as a key factor in the immune response to heavy exertion?

    <p>The importance of proper nutrition for immune function during exertion</p> Signup and view all the answers

    Study Notes

    Sun Protection and Clothing

    • Clothing designed for sun protection often includes UPF-rated fabrics.
    • Many fabrics provide a UPF level ranging from 15 to 50+.

    Eye Protection

    • Polarized sunglasses typically offer the best total protection for the eyes against UV rays.

    Immunosuppression and Athletics

    • UV-induced immunosuppression can lead to increased susceptibility to infections.
    • Athletes are advised to use physical barriers or minimize sun exposure to prevent skin damage.

    Challenges for Athletes

    • Training at high altitude presents unique challenges, such as decreased oxygen availability.
    • Altitude training helps improve athletic performance but requires adjustment.

    Commission of Position Statement

    • The position statement by the Canadian Academy of Sport and Exercise Medicine was commissioned to address altitude training issues.
    • Altitude training is a key component of many athletes’ training regimens.

    Anti-Doping Considerations

    • Some altitude training strategies may have implications for anti-doping compliance and regulations.
    • Use of certain substances during altitude training is monitored for adherence to doping guidelines.
    • Sojourns to altitude for training and competition have become increasingly popular over the past 25 years due to perceived performance benefits.
    • Recommendations for decreasing exercise-induced immunosuppression include adequate nutrition and hydration.

    Protective Measures Against UV Damage

    • Antioxidants are hypothesized to be protective against UV-induced damage and immunosuppression.
    • Certain beverages, such as fruit juices, may help boost the humoral immune response.

    Recommendations for Athletes

    • Avoiding non-recommended counter-measures, such as excessive alcohol consumption, is advised to reduce immunosuppression.
    • Athletes traveling to high-altitude venues in foreign countries are encouraged to plan acclimatization strategies.

    Medications and High Altitude

    • Acetazolamide is used to reduce the incidence of high-altitude pulmonary edema.
    • Sildenafil is noted for improving maximal exercise capacity in individuals prone to pulmonary edema.

    Research on Altitude Headache

    • A study compared the efficacy of medications for prophylaxis against high altitude headache through a double-blind randomized trial.
    • Dexamphetamine is mentioned for the prevention of high-altitude pulmonary edema.

    Exercise Performance and Altitude

    • Research by Sporer et al. investigated the effects of exercise performance at altitude.
    • Individuals may experience negative impacts, such as diminished cognitive function, and reduced physical performance at altitude.

    Position Statement Purpose and Author

    • The purpose of the position statement includes providing guidelines on altitude training.
    • Corresponding Author of the position statement discusses the effects of altitude and exercise.

    Altitude Classification and Negative Impacts

    • The position paper classifies altitudes into various categories for clarity.
    • Not all individuals at altitude may experience increased heart rate or sleep disturbances.

    Strategies for Managing Jet Lag

    • Eating strategies can improve sleep by managing hunger.
    • It typically takes one day to acclimatize to each time zone crossed during travel.

    Behaviors to Manage Jet Lag

    • Travelers should maintain hydration and avoid heavy meals while aboard an aircraft.
    • Some medications may worsen nighttime oxygenation and increase altitude illness risk.

    Recommendations During Travel

    • Athletes should prioritize rest and hydration during layovers to mitigate jet lag impacts.

    Body Adaptations to Altitude

    • The primary adaptation made by the body in response to lower oxygen levels is increased erythropoietin production, enhancing red blood cell count.
    • Additionally, adaptations improve recovery, sleep quality, and overall exercise performance.

    Studies on Ventilation and Recovery

    • Townsend et al. found that exercise ventilation improved after 20 nights of a 'live high-train low' regimen.
    • Katayama et al. reported positive outcomes from brief exposures to 4500 meters over seven days.

    Influencing Factors on HVR and Performance

    • The key factor determining if resting hypoxic ventilatory response affects exercise ventilation lies in individual physiological differences.
    • Nieman’s research emphasizes the immune response to heavy exertion, highlighting the role of recovery and nutritional support in immune function.

    Focus of Altitude and Hypoxic Studies

    • Wilber’s study concentrates on elite athlete altitude and hypoxic training responses, assessing performance metrics.
    • Gore et al. investigated specific aspects of high altitude training related to preparation for football competitions.

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    Description

    This quiz covers the recommended counter-measures to decrease exercise-induced immunosuppression, including adequate nutrition, optimal sleep, and avoiding sick contacts. It also touches on the importance of influenza vaccination and other preventive strategies.

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