Target Heart Rate and Cardio Monitoring for Safe Workouts

Maintaining a healthy resting heart rate is a key indicator of cardiovascular health, especially during high-intensity HIIT or IVF. Learn how to lower your heart rate while running and evaluate the accuracy of calories burned on heart rate monitors.

Senior Woman Resting After Exercising In Park

Heart Rate, Exercise & Age

Published Jan,08 2019 | By Paula Quinene

Heart rate and age are necessary components in estimating your heart's response to exercise. Heart rate is the number of times your heart beats per minute.

Three friends carrying cardboard boxes outside house

How Does Exercise Affect the Rate of Cellular Respiration?

Published Jul,08 2011 | By Paula Quinene

Cellular respiration includes the reactions in the cells of your body when they convert the food you eat into a molecule of energy called adenosine triphosphate, or ATP, a form your cells can use. Light household activities or sitting down to watch TV requires a steady supply of ATP.

Paula Quinene is an Expert/Talent, Writer and Content Evaluator for Demand Media, with more than 1,500 articles published primarily in health, fitness and nutrition. She has been an avid weight trainer and runner since 1988. She has worked in the fitness industry since 1990. She graduated with a Bachelor's in exercise science from the University of Oregon and continues to train clients as an ACSM-Certified Health Fitness Specialist.