[quote]gyakujujijime wrote:
Hi coach,
thanks a lot for the answer. I got your point, however since most of the people are weaker in the first half of the move, why do you generally recommend in your programs to perform partials in the second half? [/quote]
2 reasons for doing the iso at that point (besides if it is your weak point):
- potentiation: isos can be used to ‘‘wake-up’’ the nervous system. You can recruit up to 10% more muscle fibers during a max iso contraction. When you perform a max contraction it potentiates (improves/enhance) your strength during a subsequent action. This effect lasts up to 5 minutes but peaks at around 2-3 minutes after the max contraction.
If using isos to potentiate the nervous system you actually want to perform this exercise at a strong point of the movement (where force production is at its highest) to get a more powerful potentiating effect.
Why not use the lockout position in the deadlift then? Because at that point the contribution of the quads and hams is minimal, so these muscles would get little potentiation.
- to strengthen the ‘‘athletic’’ position common to a lot of sport, a position very similar to the mid-range point of a deadlift.
BTW, not many people actually have a REAL wak point at the beginning of the movement. Most of those who claim a weak point at the beginning of the movement simply pick a weight that is too heavy for them on the movement.
[quote]gyakujujijime wrote:
And when using the three part isometrics you’re talking about (start, mid-point and finish) should the alternance be performed during the same workout (for example, 6 sets, two of each), or should I rotate every week?
Thanks again [/quote]
All of them in the same workout.