I'll give you two exercises but I must emphasise the following point first: it's the method applied that would insure maximum muscle exhaustion/fatigue, which in turn would give you the muscle growth that you're after.
The two exercises:
1.
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2.
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The method: Triples.
I'm sure you're familiar with 21s when it comes to frying your biceps right? Well, here you choose the triple (number) of your choice, preferably with your low rep set being no less than 30 reps, and your target/aim is to reach a set of 60s, with 45 reps being your middle ground rep set. So it's either 10,10,10, or 15, 15, 15, or 20,20,20. Again, just like the 21s you know for biceps, the idea is to split the reps into three sections, i.e. the upper, the lower, and the full complete section. Now imagine doing that on squats for 30 reps, fire!
Your aim: is to maximise metabolic stress within your targeted muscle fibres. Metabolic stress is created within your muscle fibres when by-products accumulate as you go through your repetitions.Why is this so important I hear you ask? It's because these by-products signal other chemicals in your muscles. Chemicals you've come to look forward to for their anabolic influence on your muscles; try IGF-1, lactic acid, which in turn would increase growth hormones etc. etc....