GPPチャレンジ20日目、ジュリアvsアース新しいエクササイズは筋肉に新しい緊張を与えました。

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This is the last day of the 2nd part (from 4 parts) of my 40-days challenge and I sum up the results. And of course, I do my next training with new exercises, which gave brand new tension to my muscle

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