sets & reps, strength, hypertrophy & endurance
Today we learned about recommend sets and reps depending on client goals, strength vs hypertrophy (size). The claim is basically that,
- for endurance, 12-20 reps of 40-60% 1RM
- for size, 8-12 reps of 60-80% 1RM
- for strength, 1-6 reps of 80-90% 1RM
with 7 reps being orphaned. Though throughout the manual we're given slightly different figures, with up to 8 reps being mentioned for strength, and as low as 6 reps for size. That's just the poor editing of the book coming in again, though (hundreds of pages produced by one person in a rush before term starts, you can't blame the writers for that).
What's interesting to me is that when you look into this, we have as usual book knowledge and experience. The book knowledge comes from surprisingly few studies. The studies usually go something like, "23 young adult males were put on a 12 week programme, 12 with 3x 4-6 at 85% of 1RM, 11 with 4x 8-12 at 70% of 1RM, when all sets could be completed with the highest reps, 5% was added to the weight in the next session. After the 12 weeks, the first group had added 25% to their 1RM and had increased lean mass by 1kg, the second group had added 10% to their 1RM and had increased lean mass by 3kg."
So it's studies not involving heaps of people, and the results aren't usually dramatic and extremely clear-cut.
So much for book knowledge. Experience is more interesting. We have guys like Reg Park doing 5x5 (2 warmup, 3 work sets of 5 reps) of 80-90% 1RM and getting as much size as any natural bodybuilder today. And we have people like a friend of mine who's a rower, she does sessions of about 20 strokes per minute for 20 minutes, in other words something like 400 reps of 20-30% 1RM... and she has an upper back and shoulders as good as some amateur-level bodybuilders. Park should only have gained strength and not size, says the theory, while my friend should only have gained endurance. And yet...
And there's my own experience where I worked in a sheet metal factory, I had no sets or reps, I just had to shove around hundreds of kilograms of sheet steel. Or when in the Army, we had no weights we just did zillions of pushups and pullups and jumping jacks and so on. And with those jobs, I got bigger and stronger both.
I don't deny that lower reps for heavier weights build more strength than size, higher reps with lower weights build more endurance, and somewhere in the middle size gains are maximised. I just don't think it's as clear-cut as our instruction makes out.
I said as much to our teacher, who replied, "It's true there's not much evidence for what we're teaching you. But we have to give you some guidelines for what to tell clients to do."
I can understand that, but it also boils down to, "we don't really know, so we're just making it up." That's not the fault of the teacher or institution as such, but still.
As I see it, so long as you go and stress your muscles and sweat you'll get bigger and stronger. So if I've some client who really wants to do 12 reps instead of 5, or whatever, I won't worry too much. If I'm there supervising all the time then I can get them to do it my way, or the "ideal" way. But if I'm giving them a programme and then sending them off to do it until a reassessment three months later (as in most mainstream gyms), then we're both better off giving them something they'll enjoy and stick to.
Which brings me to...
The Soviet Boxer strikes again!
Well, he didn't hit anyone, but he did cause them some pain! You may remember that last week he had me supersetting leg press and leg curls, and finishing off with drop sets on the leg press, and no rest between sets, only supersets - I was sore for 3-4 days afterwards. I thought this was pretty hardcore given that in the trainer-trainee roleplay we were doing, I was supposed to be a 35 year old guy who had never trained before.
He did it again to a guy this week, supersetting lat pulldowns with tricep pushdowns, and bench press with bicep curls. And no rest between sets, only supersets as before. And 12-15 reps... when the guy's goal was size.
We discussed this in class, and the teacher said, "But he's a beginner."
"Is beginner! Is why he must do this! Get fitter! It's aerobic."
"But he won't get fitter, he'll be in pain and not come back. Or if he comes back... will he really be able to remember the different exercises, and superset himself?"
"I will help him."
"But this is a gym environment, you ask his goals, give him a programme to match them, show him through it, and then he does it on his own. And what about the reps? He want hypertrophy."
"But needs fitness, cannot get hypertrophy in first months."
"But his goals..."
I mention this not to pick on Soviet Boxer, who is a great guy and has a lot of experience, and who if he had complete control of someone's training could help them do great things. But that's the thing - in the mainstream gym environment, you
don't have complete control of what they're doing, you
don't get to supervise them all the time. As the teacher said, you ask them their goals, write the thing up, and have to come up with something they can and will stick to.
It's very different if you're there the whole time supervising the person, and if you can make them stay when they want to leave, or if they're highly motivated to stay (like athletes).
This really is the heart of things in the course, and it's something many are finding difficult to grasp. Which doesn't surprise me, because as we all know, when you do go to a mainstream gym... they give you whatever they reckon is the best workout, rather than what would be best for your stated goals.
I'm really seeing why one teacher was saying that communication and empathy are the essence of being a competent trainer in a mainstream gym.