Triathlon Glossary Triathlon Training

Triathlon Glossary (0-A)

In an effort to help educate on the tri-newbies out there, I gathered up some terms that I’d like to share in glossary form. Here they are, through the letter A.

70.3
Half Ironman distance (1.2mi/1.9km swim, 56mi/90km bike, 13.1mi/21.1km run)

140.6
Ironman distance (2.4mi/3.8km swim, 112mi/180km bike, 26.2mi/42.2km run)

1/2 IM
Half Ironman (1.2mi/1.9km swim, 56mi/90km bike, 13.1mi/21.1km run)

1/2 mary
Half marathon, 13.1 miles

10k
6.2 miles

2 a day
Two workouts per day

40/30/30
Diet calorie percentages–Carbs/proteins/fats

5k
3.1 miles

Aero Bars
Handlebars which face forward (sometimes shifters are placed here) with places to put your elbows. These bars allow triathletes to maintain a very comfortable aerodynamic position

Aerobic Exercise
Any type of exercise, typically that performed at moderate levels of intensity for extended periods of time, that maintains an increased heart rate. Running a long distance at a moderate pace is an aerobic exercise, but sprinting is anaerobic.

AG(er)
Age Group(er)

AHR
Average Heart Rate

Anaerobic Exercise
The initial phase of exercise, or any short burst of intense exertion, where the glycogen or sugar is consumed without oxygen-a far less efficient process. Examples of anaerobic exercise include weight lifting, sprinting, and jumping.

Anaerobic Threshold
The exercise intensity at which lactate (lactic acid) begins to be produced faster than it can be removed (metabolized), and it starts to accumulate in the blood stream

Aquabike
A swimming stage followed by a biking stage with no run.

AR
Adventure racing

AT
See Anaerobic Threshold

ATP
Annual Training Plan