Lmao at some of the comments in this thread, you most definitely can and should pivot your foot (slightly) and swivel your hips with a jab. A hard straight left can in some instances be as if not more useful than a straight right.
Your coach is teaching you how to throw a powerful jab by using your entire body so that once you become accustomed to throwing it you can limit the motion but still retain the power.
You think you don't see boxers throw jabs like this but if you look closely you'll see they do indeed use their hips, their movement is fast and sharp so it's hard to notice. Sometimes you'll notice professional fighters using what's called a dropstep before they jab, their front foot moves ever so slightly forward and is followed by a very sharp hip swivel.
Your coach is teaching you how to throw a powerful jab by using your entire body so that once you become accustomed to throwing it you can limit the motion but still retain the power.
You think you don't see boxers throw jabs like this but if you look closely you'll see they do indeed use their hips, their movement is fast and sharp so it's hard to notice. Sometimes you'll notice professional fighters using what's called a dropstep before they jab, their front foot moves ever so slightly forward and is followed by a very sharp hip swivel.
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