Swing mechanics shoulder harness system and associated systems and methods

A swing training system, comprising:

• a shoulder harness system comprising a wrist attachment and at least one coupling member having a first end configured to couple to the wrist attachment and a second end configured to couple to one of a shoulder portion of a chest portion of the shoulder harness system, wherein the shoulder harness system is configured to maintain a chest-to-arm position of an operator and detach from one of the shoulder portion or the chest portion of the shoulder harness system in response to a predefined amount of force being exerted by the operator during a swing motion using a swinging device;
• and
• at least one of:
• a light system comprising a first light emitting device configured to couple to the wrist attachment and a second light emitting device configured to couple to a bottom end of the swinging device;
• and
• a stride training system comprising a foot harness configured to secure a foot magnet to a bottom of a foot of the operator and a target magnet plate, wherein the foot magnet and the target magnet plate are configured to form a magnetic coupling and emit an audible noise when the foot magnet comes into physical contact with the target magnet plate.