This is the epoch-making  free iPhone app letting you exercise abdominal muscle properly.
iPhone measures an angle and a timing of which you sit up. So, you can exercise to strengthen your abdominal muscle properly and effectively as if a trainer ARI-MAX is standing by you.


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Trainer : ARI-MAX=Arima Michihiro
'98 Nippon Sport Science University major in Physical Education
'98 Teacher's license for junior high school and high school (health and physical education)
'99 The NSCA-Certified Personal Trainer (NSCA-CPT)
'00 GOLD'S GYM Official Personal Trainer
'01 The Certified Strength and Conditioning Specialist (CSCS)

He set up as a personal trainer after acquiring the international license.
Now he works mainly at GOLD'S GYM, Harajuku, Tokyo. As a father of 3 children, he is "good dad" off time; on the other hand, he works out and teaches as a professional trainer of body building at a gym.
A unique trainer handling himself as a underwear and fitness model.
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Arima Michihiro

Yamamoto Keiichi

Supervisor : Yamamoto Keiichi
He started work out by himself and came to grips with work out and Zen.
After high school, he enter the Self Defense Force to master training and was awarded the Commander Prize in the junior scouting training.
After that, he took up a new course of life in the fitness trade and set up as a personal trainer with experience of teaching at luxury fitness clubs and long-established clubs. His original training method had supported by business persons and executives, and he became a trainer who could no make an appointment.
"Why good business people work out?" was published in 2005 and was a best selling book published over 100 thousand. Recently he spends his time for popularization and enlightenment of work out by writing and lectures in addition to lead in fitness.
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