H Harold New member Jan 22, 2010 #1 hello is it effective to do sprints and plyometrics once a week? will this increase my endurance and make me faster? on the remaining days of the week i do heavy upper and lower body lifting as well as jump rope and 3 rest days.
hello is it effective to do sprints and plyometrics once a week? will this increase my endurance and make me faster? on the remaining days of the week i do heavy upper and lower body lifting as well as jump rope and 3 rest days.
