high levels of lactic acid is particularly draining to the body, and should be used it modest dosis for most of us.
Absolutely
As you stated, minimizing Lactic Acid is should be the Training Objective.
Training with high levels of lactic acid makes you really know and feel that you trained hard,
Hyperbolic Analogy
As I have previously mentioned, one Head Footballs Coach believes that unless his players need to be pushed to the level of puking or come close to puking in a training session. He and the players "Feel that they really trained hard."
That is an idiotic approach to training like continuing to achieve higher lactic acid levels to really know your trained hard.
The same applies to Delayed Onset of Soreness. Some individual believe soreness mean that you know you trained hard.
Then they say that HIIT is more effective, or equally effective with less training dosis.
HIITs Effectiveness
1) It increases anerobic and aerobic capacity at the same time, which is a Training Paradox. The benefits
of both are achieved.
2) It is more efficient. As the article and multiple other research articles have stated, HIIT's result can be achieve in around 10 minutes compared to am hour of LISS.
Hourly Wage Aanalogy
HIIT is comparative to making let's say $30 and hour.
LISS is comparable to making $15 a hour.
Why not work fewer hours and make the same amount of money?
1) Provided time was not a factor what would be most efficient ?
Intensity Is The Factor.
When Intensity goes up, Time goes down.
When Intensity goes down, Time goes up.
2) Provided time was not a factor what would be most healthy ?
Time Is A Factor
"You can train hard or long but not both." Vince Gironda
As noted above, Time has an Inverse Relationship to Intensity.
3) What kind of training (aerobic or LISS) is best in terms of combining it with other ways of training/sports.
T
he Law of Specificity
The Sport or Activity is the determinate facotor of writing and executing an optimal Training Program.
If a sedentary person only want to train one hour pr. week, what should he do.
Sedentary People
HIIT provides greater benefits that LISS.
a) Shorter Train Time. Three HIIT Sprint Trainign Session per week of 10 minutes amounts to 30 minutes of Total Training for the week.
This research was previously posted.
However, Sedentary People are not likely to do that.
b) Both Anerobic and Aerobic Capacity are increase. LISS does not increase Anerobic Capacity.
c) HIIT increase Metabolic Rate for hour after a Training Session. LISS does not.
Something's Better Than Nothing
For less motivated individual, LISS will provide some health benefits.
The key to maintaining an exercise program, diet, etc., is to find something you enjoy.
If LISS does that then do it.