This video explores various pull-up variations for muscle growth. Dr. Mike Israetel discusses fifteen different types of pull-ups, explaining their benefits, limitations, and when to use each one strategically for optimal results.
The fourth follow-up question, "What is the recommended approach for incorporating weighted pull-ups into a training program to maximize results, including suggested weight increment strategies?", is addressed throughout much of the latter half of the video. There isn't a single timestamp, but relevant information begins around 11:10 ("more pull-ups Weighted pull-ups...") and continues through 13:56 ("...small increments That's the big unblock"). The speaker emphasizes starting with very small weight increases and gradually progressing.