Originally Posted by redsoxfan15

i and everybody agree that airalert causes overtraining shin splints tendinitis and headaches this has been proven dangerous and i agree it was dangerous but there is a safe way to do this and prevent injury it is called the springbak insole you have probably heard of this it increases your vertical; by two inches. and it guarantees if you use these while doing plyos you will not get shin splints , and it makes it almost impossible to get tendinites and prevents ligament tears and small fractures. i bought these and now my vert increased two inches i will update my vertical on my signature. believe me this makes air alert about 90 percent safer i have been studying this for a while and there is a way. it also increases recovery time so you heal quicker tell me what you think.