Training Glossary

An alphabetical list of fitness terms explained in a simple, easy to understand way. To make a suggestion or let me know of a correction, send me a brief email here.

If you find this useful, help me share it far and wide so others can benefit too. 


Progressive Overload

The intentional act of exposing your body to a greater stimulus that is has previously experienced to provide it with the necessary incentive to make it adapt by getting bigger, stronger, faster, etc.

Can be applied by;

  • Increasing the weight lifted
  • Decreasing rest times
  • Increasing the number of reps performed
  • Increasing the number of set performed
  • Increasing the number of exercises performed




Reps are the number of times you perform one repetition of any given exercise. For example, 10 reps of squats would see you perform 10 consecutive squats.



Sets are group of repetitions. For example, 3 sets of squats would see you complete 3 total sets with rest between each one.



A hormone produced by the body in both men and women. It is primarily created in the sex organs with a small amount also produced in the adrenal glands.

It is important for the following processes;

  • Improving body composition, particularly building muscle
  • Increasing libido and sex drive
  • Improving cognitive function and mood
  • Staving off and counteracting depression
  • Strengthening your bones

Total Daily Energy Expenditure (TDEE)

The total amount of calories you expend each day including any exercises you perform.