How to Reduce High Cholesterol With Exercise | EverydayHealth.com
AHA suggests at least 150 minutes of moderate exercise Ñ or 75 minutes of vigorous exercise Ñ per week.

Exercise intensity: How to measure it - Mayo Clinic

Calories per hour for a 155 pound person
Examples of moderate-intensity exercise include:
Walking briskly (3 miles per hour or faster)
Bicycling (10 miles per hour or slower)
Playing tennis (doubles)	422
Gardening
Jazzercise	422
Cycling 10-12 MPH	422
Hiking	422
Swimming laps, freestyle, slow	493
Raking lawn	303
Snow skiing, downhill skiing, light	352
Cross country snow skiing, slow	493
Downhill snow skiing, moderate	422
Golf, walking and carrying clubs	317

Examples of vigorous-intensity exercise include:
Racewalking 5 MPH	563
Running, 5 mph (12 minute mile)	563
Swimming laps
Playing tennis (singles)	563
Aerobic dancing
Hiking uphill
Cycling 12-14 MPH	563
Swimming laps, freestyle, fast	704
Cross country skiing, moderate	563
Downhill snow skiing, racing	563

Calories Burned During Exercise, Activities, Sports and Workouts

It is moderate exercise (you should get 150 min/week per the AHA)
Singles is vigorous exercise (you should get 75 min/week)

Mayo Clynic says:
Moderate exercise intensity: 50 to 70 percent of your maximum heart rate
  400-500 calories/hr for a 155 pound person
Vigorous exercise intensity: 70 to 85 percent of your maximum heart rate
  500-600 calories/hr

My results while wearing a Holter Monitor 
(I always thought it was "halter" but it's "Holter")

Heart Rate  (my max [205 - age/2 for a fit person] = 170
Event     Min   Av   Max
Tennis    88   115   158  (av = 68% of max) (doubles)
Jogging   89   132   176  (av = 78% of max)

Other
Running, 5 mph (12 minute mile)	563 calories/hr
Jazzercise   422 calories/hr

How to Reduce High Cholesterol With Exercise | EverydayHealth.com