Which is better for rectus femoris hypertrophy?

[saahilgala]

B, since hip is extended lengthening the quad

[alisankoh]

The RF is the only Quadricep with main two functions.
1. Closing Hip Angle (Hip Flexion)
2. Opening Knee Angle (Knee Extension)

The Answer is A.

[Paul-kdui]

Do both, exercise variety is superior to one only

[antonispoliviou]

It's not about leaning back, it's about posterior tilting the pelvis

[jeanlives]

In the seated position, A would be the correct movement.
If you're lying down, you can still do the move with your leg hanging off side of couch Or Bed;
which will also stretch out the muscle too.
Leaning back Example B places strain upon the back.

[joshuamerritt]

B… stretches the muscle more during eccentric portion.

[blackbullsportsclub]

B active in efficiency theory is applicable

[musclemafia]

B coz in A the muscle is already short than it's original length due to the fact that the seat is 90° as compared to be. Coz a short muscle can't produce more power due to the impairment in cross bridge formation of the muscle fibres.

[merajmojdeh]

Option B is better because of the principle of active inefficiency

[齊豫心經]

A tighten the rectus femorus more so for hypertrophy A may get tougher result.
For excercises of the thigh both work differently, A work at superior and B on the inferior under

[haythamaldalati]

قول الله تبارك وتعالى. وعلم الإنسان ما لم يعلم سبحان الله العظيم تبارك وتعالى. من بركات البحث العلمي

[Sgt.Ghost-ul]

B the is stretched from origin at eccentric and concentric phase

[СветланаОрехова-ут]

В фазе растяжения увеличиваем угол (B), в фазе сжатия уменьшаем угол (A) и прожимаем мышцу сильнее

[MidoDabo]

B due to the active insufficiency as rectus femoris is two joint muscle

[fayasphysio]

Rectus femoris is 2 joint muscles so B is correct

[agostinodanna]

Sorry, why ask us?
You should educate us!

[safrane]

Unanswered question is designed to create enquiring "followers" searching for the answer & therefore increase income through viewers searching. All for profit, not philanthropy.

[ramziabu-irshid]

The answer is B because it will give you more extension to raise up your leg which will allow more blood to pump and more front leg muscle movement

[evonneolanrewaju]

A is better because your body is in proper alignment

[naebillips]

Both are good but B will work the quads more