This is the 13379th most frequent Russian word.
нагрузил
"Нагрузил" means "loaded" or "burdened" in English.
In this sentence, 'загрузил' is used in the sense of physically loading or placing items into a vehicle or container.
Он загрузил сумки в машину.
He loaded the bags into the car.
Here, 'нагрузил' metaphorically means to burden or assign a considerable amount of tasks, referring to homework in this context.
Учитель нагрузил нас большим количеством домашнего задания.
The teacher burdened us with a lot of homework.
In this context, 'нагрузил' refers to exerting tension or strain on the muscles, particularly during physical exercises.