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My Heart Rate Rises With Light Activity

author image Michelle Matte
Michelle Matte is an accomplished fitness professional who holds certifications in personal training, pilates, yoga, group exercise and senior fitness. She has developed curricula for personal trainers and group exercise instructors for an international education provider. In her spare time, Matte writes fiction and blogs.
My Heart Rate Rises With Light Activity
A man is exhausted after doing some housecleaning. Photo Credit: gpointstudio/iStock/Getty Images

If you feel as though your get-up-and-go got up and went, or find yourself winded with little effort and your heart racing during light activity, this could be due to a number factors which influence fatigue and energy levels. Elevated heart rate with minimal effort is a good indication that some lifestyle changes are in order. Consult your doctor about your proper heart rate and before beginning any new diet or exercise regimen.

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The Cardiovascular System

Your cardiovascular system involves your heart, lungs, arteries, veins and capillaries. It is how your body delivers oxygen and nutrients to and removes waste from all its cells. When all components are healthy, your body hums along without a hitch. But when one or more components are not up to snuff, the entire system is compromised. Diminished oxygen delivery to the cells will manifest as physical lethargy and fatigue. Diminished oxygen to the brain will interfere with focus and alertness.

Resting and Exercise Heart Rate

Your heart rate at rest is a good indication of heart health. According to the Mayo Clinic, the average adult resting heart rate is between 60 and 100 beats per minute, while a trained athlete may have a resting heart rate as low as 40 beats per minute. When the heart muscle is strong and the lungs and cardiovascular system are healthy, the heart pumps more blood per beat, a measure known as stroke volume. Greater stroke volume means the heart has to beat fewer times per minute to meet the oxygen needs of the body. Regular exercise cultivates a lower resting heart rate.

Hemoglobin and Heart Rate

Hemoglobin is a protein your body manufactures from dietary iron, and serves as the oxygen-carrying component of red blood cells. When hemoglobin levels are low, even an otherwise-healthy cardiovascular system cannot properly oxygenate all the cells. Low hemoglobin is clinically known as anemia. The University of Maryland Medical Center lists increased heart rate and fatigue as symptoms of iron-deficiency anemia. The heart rate increases in an attempt to meet the body's oxygen requirement by pumping more blood per minute. Taking an iron supplement or increasing your consumption of iron-rich foods like red meats and leafy green vegetables can reverse iron-deficiency anemia; consult your doctor before taking any supplements.

Stress and Other Lifestyle Factors

Because stress and sleep deprivation alter body chemistry, they can have a negative impact on heart rate and blood pressure. Low muscle mass and high body fat are also associated with elevated heart rate. Muscle drives your metabolic engine, keeping it revved up all day. Fat is dead weight, weighing you down and making your heart work harder during everyday activities. Dehydration will cause elevated heart rate because your body's systems are stressed when fluid-deprived. Cigarette smoking and excessive caffeine consumption are also culprits. Managing stress, getting ample sleep, staying active and keeping hydrated will lower resting and exercise heart rate over time.

Staying Heart Healthy

The American College of Sports Medicine, in conjunction with the American Heart Association, recommends a minimum of 30 minutes of moderate-intensity aerobic activity daily. Activities like walking, swimming, bike riding and gardening all qualify, so long as they elevate your heart rate to above-resting levels. The ACSM also recommends an additional 30 minutes three times per week of higher-intensity activity such as jogging, and resistance training twice weekly to build muscle. Keeping your heart and body strong will give you energy and stamina to do everyday tasks with less effort.

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