Jared Graves Interview, A Week After Brain Surgery [No Video]

SWEAT TESTING METHODOLOGY IN THE FIELD: CHALLENGES AND BEST PRACTICES

EY TERMS The amount of water and electrolytes (primarily sodium, Na+) lost as a consequence of thermoregulatory sweating during exercise can vary considerably within and among athletes. The reported range in sweating rate and sweat Na+ concentration ([Na+]) is ~0.5 to 2.0 L/h and ~10- 90 mmol/L, respectively. Sources of intra/interindividual variability in sweating rate and sweat [Na+] during exercise include exercise intensity, environmental conditions, heat acclimation status, aerobic capacity, genetic predisposition, body size/composition, protective equipment, sex, diet and hydration status. Sweat testing can be conducted to estimate individual sweating rates and sweat Na+ losses to help guide personalized fluid and electrolyte replacement recommendations. However, unstandardized methodological practices and challenging field conditions can produce inconsistent/inaccurate sweat testing results. Based on study findings to date, as well as some practical considerations, curren...

FLUID INTAKE STRATEGIES FOR OPTIMAL HYDRATION AND PERFORMANCE: PLANNED DRINKING VS. DRINKING TO THIRST

KEY POINTS In humans, thirst tends to be alleviated before complete rehydration is achieved. When sweating rates are high and ad libitum fluid consumption is not sufficient to replace sweat losses, a cumulative loss in body water results. Body mass losses of 2% or greater take time to accumulate. Dehydration of > 2% body mass and greater is associated with impaired thermoregulatory function, elevated cardiovascular strain, and in many conditions impaired aerobic exercise performance (e.g., warmer, longer, more intense). Circumstances where planned drinking is optimal include: longer duration activities > 90 min, particularly in the heat; higher intensity exercise with high sweat rates; exercise where performance is a concern; when carbohydrate intake of 1 g/min is desired. Circumstances where drink to thirst may be sufficient include: short duration exercise < 60 to 90 min; exercise in cooler conditions; lower intensity exercise. NEVER drink so much t...

Best Stretches for Time-Crunched Cyclists

https://www.trainingpeaks.com/blog/best-time-saving-stretches-cyclists/ SEPTEMBER 24, 2018 BY SHAYNE GAFFNEY We all know that cycling is great for a myriad of things, but the bike keeps your body in a fixed position, sometimes for hours on end. This can wreak havoc on the neck, middle back, hips, and lower extremity muscles, causing them to become shortened, painful, and lose their ability to produce powe r. This, of course, is unacceptable and the exact opposite effect we want after spending time training outdoors, or in the pain cave! So, do yourself a favor and spend a few minutes stretching your legs out after you beat them up—your body will thank you, and it will give you some precious time to think about life (i.e. more cycling) for a while. The following stretching routine is designed for athletes who are time-crunched and need to really maximize any time dedicated to their fitness. The Rules The ideal time to stretch statically ...

Watt House

Search This Blog