Ib kauj ruam – Mus zoo
Yog koj xav yuav tau kev tiv thaiv koj tus kheej, ua hauj lwm rau koj conditioning tus txheej txheem loj tshaj nyob hauv lub ntiaj teb no xwb zoo li ntawd, yog hais tias koj tsis muaj tus muaj lub zog mus outlast hawb pob. Txias yog ib qhov sib nrauj ntau neglected martial arts kawm. Txias Cardio-nco ntsoov cov laus hais tias, “Fatigue makes a coward of all of
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