Why does weight lifting use the anaerobic system?

Answer 1

weight lifting uses the anaerobic system because no matter which sport or which event you are doing your body will always use this system first in total this system only lasts around 60-90 seconds so if the event is shorter than this they would have only used their anaerobic system however if the event is longer than this and they are still not using oxygen then they will ge ta uil up of lactic acid and if they are using oxygen( aerobically) they will be able to convert the pyruvic acid (substance which comes before lactic acid) into ATP thus creating movement

so Weightlifting is an anaerobic system and no matter how heavy the weight may be as long as the event lasts less than a maximum of 90 seconds then it will remain anaerobic

haha wqent into a bit of detail there but