Saturday 11/29

Each for reps:

3 min AMRAP
7 DB Thruster @ 45/30
5 Burpee
Rest 2 min

3 min AMRAP
7 DB Power Clean @ 45/30
5 Burpee
Rest 2 min

3 min AMRAP
7 DB Deadlift @ 45/30
5 Burpee
Rest 2 min

 

Six Lies You Were Taught About Lactic Acid

Everything you’ve learned up to this point is wrong.

Lactic acid is nasty stuff. Your muscles produce it during intense exercise. It’s a metabolic byproduct that makes no contribution to exercise performance. It causes muscle fatigue and post-exercise muscle soreness. No wonder the best endurance athletes don’t produce as much lactic acid.

Actually, none of the above statements is true. Recent research has demonstrated that lactic acid is not what we once though it was, in almost every way. Read on, and learn the truth behind the lies you’ve been told.

Lie #1: Muscles Produce Lactic Acid During Exercise

The muscles do not produce lactic acid during exercise. They produce a very similar compound called lactate. Whatever you call it, this substance is not produced as a waste product of anaerobic metabolism, as once believed. It’s actually an intermediate link between anaerobic and aerobic metabolism.

Lie #2: Lactic Acid Causes Muscle Fatigue

Most athletes believe that lactate (as we’ll call it from now on) causes muscle fatigue by making the muscles too acidic to contract effectively. This is not true. While the muscles do become more acidic during exercise, lactate is not the cause. In any case, far from hastening fatigue, lactate accumulation in the muscles actually delays fatigue by mitigating the effects of a phenomenon known as depolarization. During intense exercise, your muscles lose power in the same way a battery does: by becoming depolarized. The accumulation of lactate in muscle tissue during intense exercise partly counteracts the effect of depolarization.

Lie #3: Lactic Acid Causes Soreness

Lactate does not cause post-exercise muscle soreness. The simplest proof of this is the fact that very little lactate is produced during highly prolonged, low-intensity exercise, and yet it is this very type of exercise that leaves the muscles sorest in the following days. Post-exercise muscle soreness is actually caused by simple mechanical damage to muscle fibers, free radical damage, and inflammation.
Read more here

 

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