Increasing your target heart rate while rollerblading from 145 beats per minute to 170 beats per minute is an example of using which training principle of fitness to improve your workout: frequency intensity time type

Achildren’s pain relief elixir contains 80. mg acetaminophen per 0.50 teaspoon. the dosage recommended for a child who weighs between 24 and 35 lb is 1.5 teaspoons. what is the range of acetaminophen doses, expressed in mg acetaminophen/kg body weight, for children who weigh between 24 and 35 lb