Pauses traditional strength training

You may be pushing in the digital crown and the side button when you flex your wrists, it happens to me on occasion.

Try reversing your watch and wear the crown towards your elbow.

The orientation can be changed in the watch app>General>Orientation

When you start your workout slide right on the screen and tap on lock,then when you finish the workout turn the digital crown in one continuous movement to turn the lock off then slide right again and tap on end.