There are way too many factors on why individuals should not do mass group training. Unless your goal is to just "exercise", there are a couple of considerations on why one should vary their programmes in some way or some form. Below is a list of some of the most important considerations when choosing to avoid mediocrity.
1) Different Maximal Recoverable Volume and Minimum Effective Dose
2) Different Neurotransmitter dominance
3) Different Bio-mechanical deficits
4) Prior established work capacity
5) Training age and biological age
6) Non-specific physical activities
7) Individual goals
Different Maximal Recoverable Volume and Minimum Effective Dose
This is the broadest in its category and highly linked from all other points. It does not mean that a programme that worked well for someone else means it will work for another.
An example was when I studied 12 different programmes of StrongFirst Beast Tamers, I found some of the volumes widely differs from another. Although the general consensus was somewhere between 900-1400 kg per arm in the 1-Arm Press, not everyone could accomplish that volume. I certainly was not one of them. Whenever I embarked on volumes higher than 900 kg per session, I would either fall sick, tweak something or my performance would stall. Clearly, what had worked well for someone did not work for me.
Different Neurotransmitter dominance
An example that I would like to dispute is the latest study on the "Effects of a Modified German Volume Training (GVT) Program on Muscular Hypertrophy and Strength" that was published on PubMed. It stated that there was no difference in someone doing 5 sets of 10 or 10 sets of 10 and people should just stick to 4-6 sets for hypertrophy. That study made everyone go crazy and everyone started posting that GVT does not work. What the study did not take into consideration were the participants' neurotransmitter dominance and a host of other factors. For someone with a Dopamine-dominant neurotransmitter, GVT will be an absolute disaster. For someone who has an all-round balanced neurotransmitter type, GVT works wonders. Just take a look at someone like Milos Sarcev who does up to 40 sets of a body part per session.
Different Bio-mechanical deficits
For someone who has been bio-mechanically assessed and has shown to have poor shoulder extension, putting them on dips or muscle ups is a disaster waiting to happen. Likewise for someone who has been assessed for poor ankle flexibility, snatching a barbell for them is a big no-no.
Prior established work capacity
An athlete with a powerlifting background will not have the capacity of a strength endurance athlete, or a bodybuilder. Therefore, if he is preparing for a Bodybuilding competition, he has very little work capacity and has to start his training program at where he currently is.
Likewise, for a pure endurance athlete, they do not have the capacity to handle multiple attempts of a heavy load.
Training age and biological age
Someone who has absolutely no training experience should not be placed alongside someone with 5 years of training age at the start. The person with absolutely zero training experience does not have the neurological efficiency nor the tendon strength and stiffness to exhibit heavy attempts at lifts.
Non-specific physical activities
For someone who does gymnastics training multiple times a week will not be able to recover from a full powerlifting program and vice versa. Likewise, for an endurance athlete training 5-6 times a week, they will not be able to recover from an all-out strength training programme as someone who just does strength training.
Not everyone wants to put on a ton of muscle mass, especially for athletes, it is metabolically costly for them. Athletes needs functional hypertrophy while someone who is just training for aesthetics will want to work towards maximal hypertrophy.
All points considered, that is why customised programmes such as StrongFirst PlanStrong is ideal if your goal is strength gains as it takes into account all the above factors.
You need to know where your deficits are, your neurotransmitter type and where you are in your training to move forward.
Otherwise, find someone who specialises in finding out where you currently are in your training right now and who is able to get you where you want to be.
If you would like to have an individualised and tailored performance or body recomposition training plan with precise coaching, speak to us. We offer both on-site customised programmes and remote (online) coaching plans and support.