To improve your aerobic capacity<span>, complete 20-30mins of work at </span>your<span> 3-5km race pace broken down into intervals, with 50-80% of the interval time added as recovery. For example, a runner with a 5km PB of 25mins could run 6 x 1km repeats, aiming to run each in just under 5mins, with 2:30mins recovery.</span>
They do not cause intoxication B
I’m pretty sure they included more than one independent variable.
I believe the correct answer from the choices listed above is option A. Stretching that uses neuromuscular reflexes to gain further stretching of the muscle is called PNF stretching. PNF stands for <span>Proprioceptive Neuromuscular Facilitation. Hope this helps. Have a nice day.</span>