Reply To: Is infrared light good for my kid who is very sport active? Home › Forums › Infrared Light Therapy › Is infrared light good for my kid who is very sport active? › Reply To: Is infrared light good for my kid who is very sport active? October 5, 2020 at 4:32 pm #826 gudemamaParticipant I’ve read that, RLT helps repair muscles and recovery. You may use it on post and pre-workout.I’ve found this helpful tips.