[quote]The Mighty Stu wrote:
Eventually, I began experimenting with putting more and more of my daily carbs to the feedings before my training. This also coincided with focusing on an intelligent influx of nutrients during my actual training. To me, this negated the obsessive need to race home and replenish depleted glycogen stores. It also allowed me to feel much better (mental focus, strength etc) during my actual training session.
Would you say your training tends to bias toward bodybuilder type training - high volume, body part splits - versus whole body, low rep strength training?
I only ask this because I am beginning to understand context between the different metabolic pathways.
Recently I had been putting up PRs in squat, deadlift, bench press and other benchmark lifts while in a completely fasted state. The highest number of reps I have done on this cycle is 120 total reps during an entire hour. This was at the peak of my last cycle where it was particularly high in volume. Volume was gradually brought down while increasing total load for the remainder of the cycle.
My fasting blood glucose levels following these sessions were really high (over 100 mg/dl) compared while doing lower volume, higher intensity (with respect to 1RM) which were on the average 20mg/dl lower.
This tells me glucose might actually be in higher demand for high volume versus lower volume training sessions. Maybe this is intuitive enough but I am enjoying the learning experience of it all - if not the improvements in strength.[/quote]
thought you might find this article interesting based on your post.
Your Sympathetic Nervous System = Energy in A Fasted State
For the longest time, I didnÃ¢??t understand why I had more energy after fasting. I have my most productive hardcore workouts after fasting for 5-18 hours. If I ate anything in that 4-5 hour window before training, the workouts just werenÃ¢??t as intense. Ori Hofmekler explained where this Ã¢??hiddenÃ¢?? energy source came fromÃ¢?Â¦the Sympathetic Nervous System (SNS).
Why Does The SNS Kick In When in A Fasted State?
Ori explains it bestÃ¢?Â¦
Ã¢??When fasting, a primal survival mechanism known as the fight-or-flight reaction to stress is triggered, maximizing your bodyÃ¢??s capacity for generating energy, being alert, resisting fatigue and resisting stress. The survival mode is primarily controlled by a part of the autonomic nervous system known as the sympathetic nervous system, or SNS. When itÃ¢??s in gear, the body is in its most energy-producing phase, and thatÃ¢??s when the most energy comes from fat burning.Ã¢??
This makes sense, because as hunters and gatherers our ancestors needed to be at our peak performance when hungry in order to catch the next meal (kind of like the mountain lion pictured above).
Eating Before Working Out Interrupts This Surge of Energy
Ori explains how the Parasympathetic Nervous System slows you down after a meal. Note: In the article IÃ¢??m quoting he is talking about morning meals and not eating before your morning workoutÃ¢?Â¦
Ã¢??If you do eat a breakfast of, say, bagel, cereal, egg and bacon, youÃ¢??ll most likely shut down this energy-producing system. The SNS and its fight-or-flight mechanism will be substantially suppressed, and your morning meal will trigger an antagonistic part of the autonomic nervous system known as the para sympathetic nervous system, or PSNS. The PSNS will make you sleepy, slow and less resistant to fatigue and stress. Instead of spending energy and burning fat, your body will be more geared toward storing energy and gaining fat.Ã¢??
Ori, recommends mainly eating at night after your physical activities are done for the day. He claims that food makes your body relax and prepares the body for sleep.
You Can Have an Intense Workout While Fasting
As I stated earlier, I have a better workout in a fasted state. Not only do I have more energy, I donÃ¢??t burp up a meal when doing an intense interval or circuit. So, my argument is that working out while fasting allows the body to burn more calories during AND after your workout.