First, we need to consider the physical characteristics of girls, such as height, weight, age, physical quality and other factors. If girls are taller, heavier, older and have better physical fitness, it may not be difficult to push 70kg backwards.
Secondly, we should also consider the exercise experience of girls. If girls often do strength training, it may not be difficult to push 70 kilograms backwards.
Finally, we should also consider the exercise goals of girls. If girls want to improve their strength, it may be a good challenge to push 70 kilograms backwards.
In a word, the level of female students' 70 kg backward pedaling needs specific analysis. If girls want to improve their strength, they can consult a professional fitness coach or carry out related strength training.