by Jason
(Hong Kong)
Is the 180 formula still applicable for an 11 years old boy? Can MAF training help such a young kid?
Nicole's Reply:
Hi Jason, thanks for your question. The 180 formula is only applicable for people over the age of 16. "For athletes 16 years of age and under, the formula is not applicable; rather, an MAF HR of 165 has been used." Phil Maffetone - The 180 Formula
You could still do MAF type training but just keep it fun and with a HR under 165.