"Heat cramps" refers to painful muscle contractions or spasms that occur due to excessive heat, sweating, and dehydration. It happens when the body loses too much salt and water, causing the muscles to cramp up. Full definition
The National Oceanic and Atmospheric Administration (NOAA) has developed a heat index chart parents and coaches can use to determine when heat and humidity have reached the point where athletes are at serious risk of heat illnesses, such as heat cramps, heat exhaustion or even heat stroke. (MomsTeam.com)
With temperatures in the mid-90s, several players battled heat cramps and dehydration. (sportstarsmag.com)
The new study found more than 60 percent of exertional heat illnesses in all sports — from heat cramps to heat strokes — occurred in August, as players return from summer vacation and ramp up full - contact drills. (scientificamerican.com)