Tristain Hoath says he was 10 years old when he first noticed he was unusually strong.

The Edmonton police officer says his dad and another man were struggling to lift a large piano onto a truck when they called him for help. Hoath says he grabbed a corner and lifted the instrument with ease, as his dad stood in shock.

"He was like, 'How did you help?"' says the 33-year-old.

"I was like, 'I don't know ... I used my body.' I don't remember breaking a sweat."

Hoath, whose father died in 2012, has cont…