Typing or playing a musical instrument in church uses more energy than vigorous sexual activity, according to calorie-count.com.

This site lists the calorie requirements of various activities, grouped into categories like: 'Religious Activities', 'Lawn & Garden', 'Volunteer Activities', and 'Sexual Activity'. (Note it is sexual activity, singular. Apparently there is only one approved method.) According to the site the most strenuous sex is said to require 102 calories per hour, lagging well behind other activities including:

  • 258: Walking, 3.5 Mph, Brisk Speed, Not Carrying Anything
  • 102: Typing: electric, manual, or computer
  • 122: Studying: including reading and/or writing
  • 156: Washing dishes/cleaning kitchen
  • 170: Sitting playing an instrument at church
  • 204: Cleaning at church
  • 136: Eating/talking at church or standing eating
  • 136: Walk/stand combination for religious purposes

Maybe it's best not to take this kind of advice from mid-westerners.