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Jelle Zijlstra
Spinning
Administratie
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Andries Zijlstra
Fitnesstrainer
Kickboksen
Small-Group Training
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Henny Zijlstra
Administratie
Inrichting en Inkoop
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Hans Zijlstra
Bedrijfsfitness
Administratie
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Corine Kampen- Zijlstra
Massage34
Sportmassages
Ontspanningsmassage
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Mariëlle Bouma
Fitnesstrainer
Fitnesscircuit
Small-Group Training
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Jesper Elgersma
Fitnesstrainer
Fitnesscircuit
Small-Group Training
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Desirée Berghout
Spinning
Barbell
Bodybalans
Yin-Yoga
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Iris Böhm
Spinning
Barbell
Bodybalans