jogging and biking

Yesterday I went on a stationary bike for 10 minutes at 10mph. My avg HR was 133. Then I hit the treadmill for 25 min. at 7 mph. HR for that was between 145-160. The last 5 min. i put on a 2% incline which increased my HR to 165. I took a one minute resting HR after I went on the treadmill and it went down from 155-85. Then I went back and did the bike for 10 more minutes and the treadmill for another 25 minutes. My heart rate stayed about the same for each. And again my resting HR after one minute was at 83.