Every time I use the tennis activity while playing tennis my heart rate stays very low and doesn't go above 100bpm even though I play hard and run around a lot. Any one else having the same issue or maybe an idea as to why this happens?
Every time I use the tennis activity while playing tennis my heart rate stays very low and doesn't go above 100bpm even though I play hard and run around a lot. Any one else having the same issue or maybe an idea as to why this happens?
