Which is a contraindication or safety consideration for electrical stimulation modalities in athletic care?

• A. Pacemakers/implanted devices
• B. Pregnancy near abdominal region
• C. Malignant tumors
• D. Active infection or poor sensation

Answer: (A)

Electrical stimulation can interfere with devices that sense and regulate heart activity. Pacemakers and other implanted electrical devices rely on precise sensing and timing, and the external currents from stimulation can create electromagnetic interference that misreads signals, alters pacing, or even causes inappropriate shocks. This risk of disrupting a life‑sustaining device makes such stimulation a direct safety contraindication in athletic care. In practice, if an athlete has a pacemaker, clinicians typically avoid stimulation near the chest and consult with the device’s manufacturer and the patient’s physician before considering any therapy. Other conditions like pregnancy, malignancy, active infection, or impaired sensation are important safety considerations, but the interference risk with implanted devices is the most unequivocal contraindication.