The first one is correct. Weighted squats practice lower body control, and although the repetition is lower, its still more significant. The resting time doesnt matter UNLESS there's a deadline, but hey. Let em' breathe.
Your answer is: good eating habits
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For youth it's 35 feet for older its 40 feet
A skill related is fitness including training to improve speed, balance, coordination, power, and finally reaction time.
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