FTC-MOD-01
Anatomie & Physiologie Grundlagen
Knochen, Gelenke, Sehnen, Bänder, Wirbelsäule, Schulter, Becken, Knie, Sprunggelenk, Ellbogen
6h · 13 sections
fitness trainer side job
Into the fitness business on the side
Build a second income stream on a serious certification foundation – without giving up your main job right away.
- Doable alongside a job
- Online learning
- Clear certification path
Competence first, clients second
Working on the side, reliability is everything: screening, technique, knowing your limits. That is exactly what the modules and case studies train.
Modules & skill credits
Content, module counts, and SC come live from our certification catalog. Changes in the certification catalog appear here automatically.
Fitnesstrainer C-Lizenz
7 modules · 20 SC · free
FTC-MOD-02
Muskulatur & Muskelphysiologie
Muskelaufbau, Kontraktion, Fasertypen, Muskelgruppen, Alltag & Dysbalancen
6h · 13 sections
FTC-MOD-03
Herz-Kreislauf & Energie
Herz, Kreislauf, Blutdruck, Energiestoffwechsel, Makronährstoffe, Herzfrequenz/Karvonen
6h · 8 sections
FTC-MOD-04
Trainingslehre Grundlagen
Motorik, Kraft, Ausdauer, Beweglichkeit, Koordination, Schnelligkeit
6h · 7 sections
FTC-MOD-05
Praxis & Sicherheit
Studio-Regeln, Cardio, Kraftmaschinen, Freihantel, Hygiene, Notfall, Sportverletzungen erkennen
6h · 8 sections
Fitnesstrainer B-Lizenz
15 modules · 60 SC · from 399 €
FTB-MOD-01
Biomechanik & Bewegungsanalyse
Kraft, Hebel, Drehmoment, Squat/Deadlift/Bench Press Technikanalyse, Videoanalyse
6h · 12 sections
FTB-MOD-02
Krafttraining Methodik
Hypertrophie, Intensitätstechniken, Split-Systeme, Progressive Overload, Regeneration
6h · 12 sections
FTB-MOD-03
Periodisierung & Trainingsplanung
Makro-/Meso-/Mikrozyklus, lineare/undulierte Periodisierung, Deload, Tapering
6h · 12 sections
FTB-MOD-04
Anamnese & Leistungsdiagnostik
Gesundheitsscreening, Krafttests, Ausdauertests, Beweglichkeit, Körperzusammensetzung
6h · 12 sections
FTB-MOD-05
Zielgruppentraining
Senioren, Jugendliche, Übergewicht, Gruppentraining, Kommunikation, Kundenbindung
6h · 10 sections
Benefits of Grow Fit Academy
Flexibility
Learn asynchronously online — evenings, weekends, or between shifts.
Modern learning methods
Gamification, skill credits, spaced repetition, and interactive quizzes.
Support
AI tutor in the app plus human advice when you need it.
Frequently asked questions
Am I allowed to work as a fitness trainer on the side?
Usually yes – clarify your status for tax and insurance purposes (mini job, freelance, secondary business). Professionally you need a solid certification foundation.
Is a side job financially worth it?
That depends on your region, your offering and how you win clients. The certification is the prerequisite – not an income promise.
Which certification do I need for a side job?
Many gyms expect at least B level. C is a sensible start; B opens most doors.
Ready for the next step?