A hand showing off a heart monitor which is worn like a watch, used to monitor your heart rate during exercise.

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Darren Cool Images /07792308722 TopSante magazine - Feature. Top Sante's Laura Jane Mcbeth tries out the new exercise class in Chiswick, London. Cardio tennis is said to be a great way of enjoying tennis and you can burn up to 800 calories in just one hour. Watch which reads and shows pulse rate and calories burnt

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Size: 5110px × 3342px
Photo credit: © Darren Cool / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: beat, bpm, cool, darren, exercise, fit, fitness, health, healthy, heart, images, pulse, rate, watch