Yes, the jerk and press move through the same ROM.
ROM The Same
That was one of the point of my previous post.
I have a hard time believing they are equal in terms of how they work the triceps and deltoids.
Never Stated
I don't know where you came up with this. I never stated that.
What did post was...
1) Press
The Overloading of the muscles is in the first one-third of the movement.
Once and individual get it approximately past the bottom one-third of the movement, they can usually lock it out.
2) Jerks and Push Press
These movement by pass the bottom Sticking Point of a Press with leg drive.
The Overload is at the top of the Jerk and Press, where momentum slows down with heavy load or when muscle fatigue set in.
What That Means
1) The Press Muscle Overload occurs in the first part of that movement; working the shoulder to a greater extent.
Partial Pressing Movements work and develop the shoulder to a greater degree when worked from the bottom to approximately a third of the way up.
One of the best is the
Bradford Press...
2) Triceps Engagement
There is some engagement of the Triceps in diving the bar off the shoulders.
However, Triceps are engaged more the father that bar moves past the the first third of the movement.
The Triceps are the key to locking the top part of the Press, as well as locking out the top part in a Push Press or Jerk.
In fact, due to the heavier load at the top part of a Push Press or Jerk, a greater Overload is obtained.
The jerk is essentially an isometric hold at the top.
Based On That Statement...
A Press and Push Press are Isometric Hold at the top if paused, as well.
people typically report more carry over of pressing to jerk than vice versa.
Great!
Since there are so many individual who "Typically report more carry over of pressing to jerks" you can provide that research data.
I am sure other will enjoy it, too.
big pressers typically show more hypertrophy than jerk specialists
Greater Hypertrophy with Pressing
Research (Dr Brad Schoenfeld) which has been posted multiple times on StrrongFirst, determined three components optimally produced Hypertrophy.
One of those is...
Metabolic Stress
Metabolic Stress occurs with "The Pump"/"The Burn"; which elicits a downstream anabolic muscle building effect.
Muscle Contractions restrict Venous Blood Flow back to the heart.
Blood is trapping in the muscles causing the them to balloon up.
It also cause an increase in Lactate,
not lactic acid. Lactate produces "The Burn".
Lactate produces the downstream increase of Growth Hormone (Research Jeremy Loenneke ) for Muscle Hypertrophy.
Thus, the length of time muscle remain in Metabolic Stress has to do with...
Time Under Tension
The length of time and number of repetition muscle are subjected to creates this Metabolic Stress.
1) Traditional Strength Training Movements like he Press subjects the muscle to much greater Metabolic Stress due the contraction from beginning to end.
2) Explosive Movement like Jerks, The Press, Plyometrics do little for Hypertrophy due to the minimal amount of time Metabolic Stress is place on them.
do we lose something by not pressing? I think the answer is yes, you lose training concentric contraction through a large ROM.
Synergistic Effect
The sum is greater than it parts.
Simply put, it's like adding 2 + 2 and getting 5.
Thus, one type of Strength Training can enhance the other; providing it is well written and executed.
That means that Pressing help with increasing a Push Press and Jerk. Push Pressing and Jerks contribute to a stronger Press.
The combination of Maximum Strength, Power, Speed, and Hypertrophy elicit a greater Training Effect.
Examples
1) Westside Powerlifting Protocol
a) Repetition Method, Hypertrophy Training
b) Max Effort Method, Limit Strength
c) Speed Training, misname, it is Power Training
2) Olympic Lifter
They combine Limit Strength and Power Training
3) Chinese Olympic Lifters
Some of the best in the Olympic Lifting now perform Hypertrophy Training in conjunction with Limit Strength and Power.
4) Dr Michael Zourdos, Powerlifter
Zourdos' determined that Limit Strength was optimized to a greater extent in a Conjugate Training Program that included: Hypertrophy, Power and Limit Strength.
4) Dr Brad Schoenfeld's Hypertrophy Research
His research determined muscle mass was increased when these three components were implemented...
a) Muscle Tension: Limit Strength Training
b) Metabolic Stress; Bodybuilding Hypertrophy Training
c) Muscle Damage. Pushing an exercise to the limit at times, Loaded Stretching of the Muscles in Full Range Movements and Eccentrics.
Jerks and the Push Press allows an Accommodation Eccentric to be performed; pushing up more weight than you can Concentrically Press and the lowering it in 1-2 seconds.
Research shows performing an Eccentric in 1-2 second is more productive in the development of Limit Strength and for Hypertrophy, as well.