Show no mercy: Rock Steady Boxing helps people battling Parkinson’s

Parkinson’s patient Donna St. John hits the bag at Rock Steady Boxing Tuesday at Pacific Island Fitness. (Laura Ruminski/West Hawaii Today0

Participants take part in agility training Tuesday at Rock Steady Boxing for Parkinson’s patients at Pacific Island Fitness. (Laura Ruminski/West Hawaii Today)

Participants navigate the obstacle course at Rock Steady Boxing Tuesday at Pacific Island Fitness. (Laura Ruminski/West Hawaii Today)

Roger Michelson hits the bag Tuesday at Rock Steady Boxing for Parkinson’s patients at Pacific Island Fitness. (Laura Ruminski/West Hawaii Today)

Donna St. John hits the speed bag at Rock Steady Boxing for Parkinson’s patients Tuesday at Pacific Island Fitness. (Laura Ruminski/West Hawaii Today)

Tom hits the bag at Rock Steady Boxing for Parkinson’s patients Tuesday at Pacific Island Fitness. (Laura Ruminski/West Hawaii Today)

Tom, right spars with Tom St. John Tuesday at Rock Steady Boxing at Pacific Island Fitness. (Laura Ruminski/West Hawaii Today)

It was a morning of music and dance at Pacific Island Fitness as Rock Steady Boxing, a unique exercise class for individuals who have been diagnosed with Parkinson’s disease, got to work.