Pec strain from switching to high frequency benching?

I’ve been running upper/lower templates for a few months now at least (2nd Gen Strength and PB templates), and am now on week 2 of the new full body Low Fatigue templates. I was finding that the dedicated upper/lower sessions were too high of an acute training load for me (especially mentally) and was craving full body so nothing was ever completely taxed on one day.

I just had a minor pec strain after close grip benching on day 4 of week 2. Could it be possible that this may have been influenced by the switch from benching 2x/weekly to 4x/weekly?

It’s possible that this could be related to an abrupt change in frequency (particularly if this also involved an abrupt increase in total weekly training volume). However, it’s also impossible to prove this either way.

I’d be applying our standard approaches to managing pain in the gym, as outlined here: