Since I’m lifting tomorrow (finally meeting my potential new workout buddy!), I decided to do HIIT at home today. I warmed up for about 3 minutes and then did 7 rounds of speed intervals on the treadmill. Here is what it looked like:

45 seconds sprint at 1% incline at 9 mph
1 minute 30 seconds of recovery at 3.6 mph.
repeat 7X.
Get off treadmill and collapse…

Duration: 25 minutes
Avg. HR: 146
Max HR: 186
Calories: 370

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