Wow, so awesome to hear from you Borge , yeah still a few veterans around, I can't tell you how many old forum threads I've read with you guys and the epic discussions haha.Awesome to see Bryan posting here again - long time, no see buddy! And also good to see many of the veterans still active here. I check in from time to time to see if there are any good discussions going, and haven’t been disappointed so far It’s a shame that "everyone" is on Facebook, as it is an extremely poor and messy platform for following discussions and quickly finding information.
Ok, so years have passed since the inception of HST, and it is pretty cool to see that what relevant research has been posted since then have validated the original format again and again.
We now have various studies showing that a rest period of 10 days-3 weeks does indeed resensitize the muscle to a growth stimulus, as per Strategic Deconditioning. What we still don’t know is whether that provides and advantage in the long term, i.e. so far it only seems as if we get "catch-up" growth - so it’s not hurting growth over 3-6 months but it doesn’t seem to provide an advantage either. Well, at least wrt muscle growth - there are obvious benefits when it comes to recovery and connective tissue health - and closing in on 44 years of age I can now say that I regret not following this principle throughout my training career.
We also now have good reason to believe that we can go all the way down into the 40-50% of 1RM range and get significant muscle growth, especially when combined with occlusion - or in my honest opinion, with Myo-reps
At these lighter loads, growth seems to stagnate faster, though - as Bryan also alluded to here - so progressive resistance is essential for any muscle growth beyond 1-2 weeks of this type of training.
The range of 60-80% of 1RM seems to work for much longer, though - so a suggested modification to the original HST format could be to prolong cycles by incrementing every 2-3 workouts instead of every workout. It is still difficult to say exactly how long one could (or should) extend a cycle, given the crude measurement methods we have available (even DEXA is too inaccurate to measure a difference of a few hundred grams of lean tissue growth), but I also think we should consider the connective tissue and joint health - we all know that full-body training 3x/week does take its toll on the body after 8-12 weeks.
Then we have the issue of volume. Bryan’s recommendation of 30 total reps for upper body in someone more advanced make a lot of sense, but there is also good research to suggest that due to the time-tension integral - and the enhanced mechano-transduction at higher relative loads - we can instead provide recommendations for "hard" sets. "Hard" meaning close to - but not necessarily to failure, so the submax periods when working within the next rep range should still be respected IMO.
So I think: 2 sets at 60% of 1RM (15-20 reps) or 1 Myo-rep set = 3 sets of 70-75% of 1RM (10-12 reps) = 4 sets of 80-85% of 1RM (5-8 reps).
This is also a conservative estimate given that 6 sets of 5 reps in a full-body workout 3x/week would for sure kill me, too
Keeping the stimulus "pure" also seems to make sense, and although there are a couple of cool studies where adding a high rep set either right before or right after heavy sets increase hypertrophy - this could simply be temporary swelling or caused by the added volume (since the groups weren’t volume matched).
I have a feeling that heavy, low-rep training provides a type of deconditioning and resensitizing effect to high-rep metabolic work, so not having the dropsets during the 5s phase makes sense from that perspective. Then you go into SD followed by high rep training and this deconditions the tissue to the heavy, low-rep training.
And the cycle repeats.
Also, considering the increased connective tissue stress at heavier loads - one *could* make a case for reducing frequency when you get to 5s - but as Bryan said, but I also think that reducing volume will take care of most of that.
Another thing to consider for advanced lifters is to start figuring out individual volume per muscle group, where some muscle groups and lifts just seem to respond better to higher reps and/or volumes, and vice versa.
Example, which I thought was pretty cool, was this study showing how higher volume/lower intensity leg training improved upper body gains:
https://www.ncbi.nlm.nih.gov/pubmed/29257792
This was also suggested in this article, although I don’t agree with everything the author said it is still food for thought that resonated with my own experience:
https://www.t-nation.com/training/the-best-training-split-youve-never-tried
That was a really insightful post, got a lot from that. What I'm wondering is what the difference would be (ie which would be more effective or in line with hypertrophy principles) doing a straight HST cycle vs a HST cycle whilst using myoreps. I know myos aren't generally used for lower reps, but it seems that myoreps really get more reps at full activation for those higher reps. Would love to hear Bryan's thoughts too on whether it's necessary to reach full activation (ie closer to failure training) or whether progressive load is more important in the long run. I guess both used in their respective times/context they both contribute and have there place (not an either/or)? Like you said, higher reps training takes quicker to adapt to, so progressive loading keeps things moving.
Both work I guess, and I have done both styles and seen similar results, but found that I did burn out a bit with myoreps, but am now using them smarter and not pushing too far with then (ie being brutally honest when I'm done in a set haha).
Btw thanks for your training thoughts, articles and interviews, they've truly changed how I train completely, especially your stuff on auto-regulation and on not smashing yourself every single time. I pushed myself too hard for years and years, so this definitely helped in easing up and being kinder to myself, so thank you