With 52C, you can easily collect data of various categories. At first glance, the tool for entering data may look very simplistic. In fact, however, it creates numerous opportunities for professional fitness progress tracking. The key is to know how to use the tool, so that it fits your individual needs as a personal trainer. Here’s some more about how you can best use 52C to more effectively track progress of your clients. Save time tracking your clients’ progress and analyzing their stats!

What kind of data can I track with 52C?

The answer is: you can basically track whatever you want: measurements, test results, exercises, and more.

The essential rule is that there are no limits on adding your own categories of tracked data. We did predefine a basic set of categories, but every personal trainer using 52C can freely extend the set for their own needs. Keep reading to learn how.

Another thing to know is that the default hints appearing under the category input are NOT all the categories available:

basic categories

What are the categories predefined in the system?

Besides those appearing as default hints, there are tens of additional categories already predefined in the system. You can see them listed below.

Body composition:

  • Bone mass
  • Bone density
  • Body water
  • Visceral fat


  • Biceps – left
  • Biceps – right
  • Chest – circumference
  • Hips – circumference
  • Waist – circumference
  • Thigh – left
  • Thigh – right
  • Calf – left
  • Calf – right


  • Press-ups
  • Pull-ups
  • Chin-ups
  • Sit-ups
  • Squats
  • Lunges
  • Deadlifts
  • Bridges
  • Wall sit
  • Plank

Tests and assessments:

  • Sprint test
  • Step test
  • Cooper test
  • Bleep test
  • 1RM – Bench press
  • Height of box jump
  • Bench press
  • Rockport Walk
  • Bench dips
  • Recovery time

When you start typing the name of category, it will appear in the hints:

typing category name

When you type the full name, or just click in one of the hints, you can put in the value of the measurement to the next input, for instance 15 in (if you’ve let’s say just measured the left biceps) and click ADD.

pomiary wpisane

How to add my own category to track?

Adding a new category is fabulously simple. You just:

1) Type the client’s name.
2) Type the full name of the category to be created, e.g.: “Agility test time”:
3) Enter a value, e.g. “57 sec” and click ADD.

new category

The newly created category will be immediately added to your set of categories, and the value you entered will be added to the client’s profile. All at once!

So the next time when you start typing, for instance, “Agility test time”, it will appear in the hints.

What units of measurement can I use in 52C?

In the settings, you can choose the system of units you are using when recording your clients’ measurements: imperial or metric.

wybór jednostek

52C will interpret the values you enter according to the chosen system of units. More about the possible formats of units you can enter and how 52C will interpret them in Units of Measurement in 52C – CRM for Personal Trainers >>.

About Cathy Patalas

The sports soul and the alleged specialist in words of 52Challenges.com. The main 52C Blog writer. A diligent student at the English Department of the University of Wroclaw, majoring in applied linguistics. An ex-acrobat and aerobic gymnast with the 13-year long experience in „training for winning”. A multiple medallist of Poland nationals in acrobatic gymnastics, and academic nationals in aerobic gymnastics. A fan of gymnastics of every existing type. Personally, finds making everyday choices in a healthy lifestyle even more demanding a challenge than making everyday sacrifices in the athlete’s lifestyle.