It might not be super clear from the site shared here, but most of these exercises are done with barbells with weights, or dumbbells. It's not hard for a beginn

It might not be super clear from the site shared here, but most of these exercises are done with barbells with weights, or dumbbells. It's not hard for a beginner to do these with incorrect form, and then increase the weight over time, until bad form plus weight results in injury.