How often and for how long do I need to work out ?
I (20 y.o. 5'11" and 155.2 lbs female) want to start working out strength. I already do cardio by doing mountain biking for ~ 1.5 hours. I do 1.5 hours karate per week but it's pretty chill (there are 80 y.o. people). I also walk from time to time and enjoy dancing to music though I do it for pleasure so I don't know for how long it lasts when I do it. I don't do strength work out at all though and wanted to know how often and for how long I should do it. I saw I should do it at least twice a week but it didn't give me a time. I tried growingananas 25 min full body work out for begginers and had difficulty finishing it and I think that by the end I wasn't doing the exercise correctly because I was exhausted. I've read an article saying that the number of work out per week was more important that the number of repeat in a work out and that after a certain number of repeat, there was no muscle growth. Do you think I should do twice a week 25 min or 4 time a week 15 min ? I don't think I can do 4 time 25 min yet or twice one hour. Before my midterm started, I had started working out and only did 10 min ×5 per week and had already seen (small) improvment in my strength and I think it lasted for 3 weeks.