Polar RS400 Endurance Sports Watch

The OwnOptimizer is a recovery test to help you assess your personal training status. To avoid sever

The OwnOptimizer is a recovery test to help you assess your personal training status. To avoid severe overtraining, taking the right recovery periods are essential. By repeating this test regularly, you can review your personal training status, and see whether you need more time to recover. If you™re looking to improve your fitness and want to keep up to date with how well you™re doing, the smart Fitness Test will tell you exactly what you need to know in just five minutes. By regularly c

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