A different first

So I've experienced the 'runners high' many times in my short running career, but today was the first time I've gotten that same feeling from a non-running workout. Very challenging and left me very pleasantly tired. The workout:

1 Hour StairMill intervals:

• First 15 minutes
• 1 min hard @ level 16
• 2 min easy @ level 9
• Last 45 minutes
• 1 min hard @ level 18
• 2 min easy @ level 4

Followed with strength workout:

• Leg Press: 3 sets x 10 reps, 110 lbs
• Leg Curls: 3 x 10, 120 lbs
• Superman Swims: 3 x 15
• Crunches: 3 x 25
• Plyo Jumps: 3 x 10

Thursday: 61 minutes StairMill, Max HR: 192 Avg HR: 167