Many Weight Training Injuries are caused by not lowering a weight in a controlled and correct manner. Typical injuries include:

Strain of the elbow and triceps when locking and driving the arm into extension while pressing weights.

Front shoulder tenderness from uncontrolled pectoralis deck machine use, at the incorrect height, with the arm turned out too far (into external rotation).

Shoulder injuries due to gripping the weights bar too wide. Shoulder joint (Acromio-clavicular joint) injuries by heavy pressing. You may also become aware of lower back symptoms, mostly due to incorrect posture and exercise technique.

Osteopathy is great medical path to treat all these types of injuries.