"Come on! One more push!"
The scene opened with Dumble Dore stomping his feet forward while calmly encouraging the Disciples who were still stuck in the current training (and by 'calmly', it meant that he was screaming his lungs out to the point where everyone's eardrums were going to burst).
Although this was a bit uncharacteristic of Dumble Dore, it was a poor attempt to oppose his usual peacefulness so he could squeeze more strength from the Disciples, giving them the push they needed to finish training.
"Ryuta Himuro! Why is your face all scrunched up? Is that how a Disciple should look?" Dumble Dore let out.
Ryuta didn't bother looking up at Dumble Dore. Instead, he clenched his entire body, sensing the white scarf around his head tighten as he did so. One more push, and he was able to do one more push-up.
Nine more to go.