If you’re experiencing pain while performing any exercise in the gym, it is best to seek the advice and care of a medical professional. That said, training should be restorative in nature — if you’re experiencing pain, look to your technique first and foremost. A proper hip hinge is critical for safely performing the kettlebell swing. If you’re not engaging your lats during the swing or not squeezing your glutes when you stand up, these might be technique-related reasons for low back pain.