Denis backed up to the wall. Sasha checked for the five points of contact that indicate healthy posture: The back of the head The shoulder blades The buttocks The calves
By the end of the hour, the lab journals were filled with data. Mr. Petrov walked around, looking at their findings. laboratornaia rabota vyiavlenie narushenii osanki 8 klass
Next came the "Ruler Test." Sasha measured the distance between the wall and Denis’s neck, and then the wall and his lower back. 3.5 cm (Normal) Denis backed up to the wall
Mr. Petrov stood by the whiteboard, where a diagram of a perfect human spine was sketched in green marker. "Today," he announced, "you aren't just students. You are orthopedic specialists." Petrov walked around, looking at their findings
The students worked in pairs. Sasha and Denis cleared their desk. Their tools were simple but precise: A long measuring tape A flat wall without a baseboard A specialized "posture grid" taped to the door Their lab journals to record every centimeter "Stand against the wall, Denis," Sasha commanded. Step 1: The Five-Point Check