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Heart zones use your max heart rate, resting heart rate, and heart rate reserve to help you calculate your target heart rates for each of the five zones. They change as your fitness level changes.
For healthy people, the Target Heart Rate (THR) or Training Heart Rate Range (THRR) is a desired range of heart rate reached during aerobic exercise which enables one's heart and lungs to receive the most benefit from a workout. This theoretical range varies based mostly on age; however, a person's physical condition, sex, and previous training ...
[citation needed] The heart rate formula most often used for the Bruce is the Karvonen formula (below). A more accurate formula, offered in a study published in the journal, Medicine & Science in Sports & Exercise, is 206.9 - (0.67 x age) which can also be used to more accurately determine VO2 Max, but may produce significantly different results.
In the second paragraph it says, "the average adult human heart beats at about 70 bpm (males) and 75 bpm (females)" and then later in the same para it says "the adult's (heart rate) about 80–100 bpm." And in the table at the top-right, it says "60-101" is the normal heart rate. -Strangerstome 20:53, 21 June 2008 (UTC)
A fairly accurate estimate of the target heart rate, based on extensive clinical research, can be estimated by the formula 220 beats per minute minus patient's age. This linear relation is accurate up to about age 30, after which it mildly underestimates typical maximum attainable heart rates achievable by healthy individuals.
In zone-based polarized training methodologies, LT1 is commonly used to designate the linear inflection point, often observed around blood lactate levels of 2.0 mmol/L, while LT2 is commonly used to designate the non-linear inflection point, often observed around blood lactate levels of 4.0 mmol/L.
Sally Edwards (born September 10, 1947) is the CEO and Founder of Heart Zones, Inc. She is a best-selling and prolific author, serial entrepreneur, professional triathlete, motivational speaker, innovative app developer and a living legend.
Doc Lew Childre Jr. (born September 7, 1945) [1] (pronounced "Chill-dree") [2] is an American author [3] and the founder of the Heartmath Institute, a non-profit organization whose objective is to help the development of "heart-brain-coherence". He works on child development and strategies for dealing with stress.