Mike Robertson did an .mp3 interview with Joe Kenn. Joe Kenn is the originator of the "tier system" of athletic training. It might be a bit obscure to most of my readers, but it's a system he developed to train college athletes.
One his co-workers from his program at Arizona State now trains people at DeFranco's Training (Jeff Carr). Thanks in part to that, I've trained under a variation of the tier system myself with really good results.
Joe Kenn Interview
サンドバッグに遊ばれるな(笑)…(水)キックボクシング初級&一般クラス
19 hours ago
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