Bruce Algra's world renown Training Heart Rate Zones Poster provides any home gym or fitness facility with an eye-catching and very informative wall reference. This beautifully designed cardio reference presents 4 zones to train in based on an individual's fitness level and fitness goals. Each zone provides the high and low heart rate range to train in for ages 10 to 90. This awesome exercise and workout chart will enhance the look of your gym walls while also providing useful fitness information for years.