MHSAA Provides Heat Management Reminders in Advance of 2024 Fall Practices

By Geoff Kimmerly
MHSAA.com senior editor

August 1, 2024

A stretch of hot and humid days downstate to finish July provided another reminder of why acclimatization to weather conditions is essential as teams at Michigan High School Athletic Association schools prepare for their first fall practices this month.

Each year, the MHSAA provides information to its member schools to help them prepare for hot weather practice and game conditions during the late summer and early fall. Practices for all Fall 2024 sports – cross country, football, Lower Peninsula girls golf, boys soccer, Lower Peninsula girls swimming & diving, Lower Peninsula boys and Upper Peninsula girls tennis, and volleyball – may begin Monday, Aug. 12.

The “Health & Safety” page of the MHSAA Website has links to several information sources, including the MHSAA preseason publication Heat Ways, which is available for download and includes valuable information on heat management in addition to requirements and resources regarding head injuries, sudden cardiac arrest and emergency action plans. Emergency action plans specific to sport and venue are a new requirement for schools beginning this fall season.

The first days of formal practices in hot weather should be more for heat acclimatization than the conditioning of athletes, and practices in such conditions need planning to become longer and more strenuous over a gradual progression of time. Schools also must consider moving practices to different locations or different times of day, or change practice plans to include different activities depending on the conditions. Furthermore, football practice rules allow for only helmets to be worn during the first two days, only shoulder pads to be added on the third and fourth days, and full pads to not be worn until the fifth day of team practice.

The MHSAA advises student-athletes to make sure to hydrate all day long – beginning before practice, continuing during and also after practice is done. Water and properly-formulated sports drinks are the best choices for hydration.

A number of member schools follow the MHSAA’s Model Policy for Managing Heat & Humidity, which while not mandated for member schools was adopted as a rule for MHSAA postseason competition in 2013. The plan directs schools to begin monitoring the heat index at the activity site once the air temperature reaches 80 degrees, and provides recommendations when the heat index reaches certain points, including ceasing activities when it rises above 104 degrees. (When the temperature is below 80 degrees, there is no combination of heat and humidity that will result in a need to curtail activity.) The model heat & humidity policy is outlined in a number of places on the MHSAA Website, including as part of Heat Ways.

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Not only is water an essential nutrient, it makes up your entire being. We’re 40 to 70 percent water, depending on fitness level and age. And while staying hydrated is always important, it may become more challenging as the weather heats up. Hard-working muscles generate more heat when they’re surrounded by hot air, making it harder for your body to maintain a normal temperature.

Henry Ford HealthEven a 1 to 2 percent loss of body weight from water can compromise your performance and impact your body’s ability to cool itself. The heart pumps harder, circulation slows and muscles fatigue more quickly. If the loss creeps up to 3 or 4 percent, you’ll be at increased risk of developing heat-related illness and injury, including cramps, heat exhaustion and heat stroke.

Even when you’re not active, your body loses more than a quart of water every day through urine, perspiration, sweat and breath, according to the National Institutes of Health. And most days, it’s more than 2.5 quarts.

The goal, of course, is to replace what’s lost. And with a little planning and preparation, you can during any outdoor activity, no matter what the thermometer says. Here’s how:

  • Drink before you’re thirsty. Need to quench your thirst? Chances are you’re already dehydrated. Your best defense against dehydration is drinking water on a consistent basis so you never reach the point of thirst.
  • Take frequent water breaks. While you might not want to disrupt your workout for a water break, taking time out for some much-needed liquid nourishment will pay off in the long run. Drink 8 to 10 ounces of water (about one full glass) before starting any activity. Once the games begin, drink another 7 to 10 ounces every 20 to 30 minutes.
  • Track your intake. Many people don’t know how much water they should drink daily—or even how much water they’re typically downing. If you’re sipping on a 16-ounce bottle, drink eight of them each day—and even more if you’re exercising heavily.
  • Consider an electrolyte drink. Working out for more than an hour? Consider sipping a sports drink—or nibbling on some pretzels or a banana to restore lost electrolytes (minerals in the blood that regulate bodily systems). Your body loses important electrolytes like sodium, potassium and chloride when you sweat. A good sports drink can help you replenish them. Coconut water is a great choice, but there are a slew of healthy, low-sugar options on the market.
  • Munch on water-rich produce. Water-packed snacks, including melon, berries, bell peppers and grapes, are all good options. A bonus: All of these foods boast a decent hit of electrolytes, too!
  • Step on the scale. Weigh yourself before and after a workout. If the scale shows a loss, replenish it with water (gulp 20 to 24 ounces of water for every pound lost). If you’ve lost 3 percent or more of your body weight, chances are you’re severely dehydrated.
  • Watch your urine stream. It may seem gross, but checking your pee is probably the best way to determine whether you’re dehydrated. If it looks like watered down, colored lemonade, you’re probably in the clear. But if it’s a deep yellow or light orange, you’re probably not drinking enough fluids.

Keep in mind that heat exhaustion happens quickly—especially during summer activities. It can easily turn into heat stroke, a dangerous condition that can lead to organ damage, seizures, coma and even death. If you feel dehydrated, dizzy or overheated, get out of the sun, sip some water (slowly) and apply cooling compresses to your head, neck and chest. If your symptoms don’t improve quickly, get to a doctor or call 9-1-1.

Nick Parkinson, M.Ed., AT, ATC, TSAC-F, is the supervisor of athletic training and sports performance at Henry Ford Health. Learn more about Nick.

To find a sports medicine provider at Henry Ford Health, visit henryford.com/athletes or call 313-651-1969.