...hard stuff out there to develop mental and physical toughness (20 rep squats, clean and jerk/snatch until dead).
20 Rep Squats and Clean and Jerk/Snatches
Learning to grid out movement like that will increase mental and physical toughness.
However, it come at the expense of..
1) Developing Poor Technique
Any movement that is pushed to exhaustion, failure or near failure develops poor technique.
2) Increase Risk of Injury
High repetition movement, in a muscle fatigued state, produce injuries.
Machine Based Exercise for High Repetition Training
One of the positive aspect of pushing a Machine Exercise to near complete exhaustion is the it designates a certain paths. It either eliminates or drastically minimize any type of poor technique; such as, the Leg Press, Bench Press, Back Supported Row, etc
For individual with no access to Exercise Machines, who have a Power Rack, there is...
Scrape The Rack Exercise
The Smith Machine The Smith Machine is often trashed by the Free Weight Community. However, it allows you to perform some exercises on it that you can't with Free Weights. No Smith Machine, No Problem However, there is another interesting option for those who have a Power Rack. The Modified...
www.strongfirst.com
Essentially, Scrape The Rack Exercise turn a Power Rack into a Smith Machine.
High Intensity Training Frequency
High Intensity Training Session need to be trained infrequency; since they take so much out of you.
"Wound Healing"
This means the more physically and mentally you beat yourself up, the longer it take to recovery.
Happy Gilmore
This method work about as well as Mega Squat and Clean and Jerks/Snatches until your dead for developing mental and physical toughness.