Related Clues

• Vigorous exercise system
• Exercise based on karate
• Karate-like exercise system
• Modern workout system
• Popular exercise system
• Cardio choice
• Popular aerobic program
• Aerobics technique
• Karate-like exercises
• Regimen with "cardio bursts"
• Popular exercise program
• Popular exercise technique
• Exercise program based on karate
• Exercise system developed by Billy Blanks
• Workout system marketed by Billy Blanks
• Workout regimen
• Billy Blanks's workout program
• Fitness system developed by Billy Blanks
• Exercise technique based on martial arts
• Billy Blanks's fitness system