Really, How often? Well to be honest I cannot not answer the question, however I can give a few tips I use . I’m a Beachbodyondemand lover, all. To say I have several trainers with awesome workouts by a calendar. The trainers do suggest when its time to increase, do I follow? Sometimes yes and sometimes no.
I increase my weights according to my strength, if I feel the current weight is not challenging I will increase prior to the trainer recommendation. On the flip if the weight is already challenging well no and no I’m not changing my weights.
Now the question is how do I know if they are not challenging, huh, have you ever lifted if not let me share. When you’re lifting and on rep 3 or 4 you gotta dig in with a face you hope no one is taking pictures or video taping and by rep 8 you;r a bit shaky but know you can maybe do 2 more reps and that’s MAYBE, the weights are challenging.
If you are able to lift and it feels like air or you can continue to lift on and on without any muscle fatigue. Just stop and increase the weights but if you like to go through the motion okay. It’s not really going through the motion because if you continue on and on the muscle will fatigue, the increase in weights cause the muscle to work and fatigue sooner, but with safe measures.
With any weight lifting make it about you, as I do, your goals, your challenge and most of all your safety as I also do. To weeks of weight lifting of fun (you have to enjoy your workout), safety and meeting those fitness goals, ENJOY.