The NxLabs Body Challenge Blog

Posts Tagged ‘muscle growth’

How Many Sets?

Tuesday, May 5th, 2009

If you’ve been in the iron game for any length of time you might be aware of the eternal debate on how many sets and by extension how many reps you should be performing. On one side we have the proponents of the High Intensity Training approach (H.I.T.) who typically advocate a single set to failure (and refer to themselves as Jedi’s…seriously). On the other side of the spectrum we have the more traditional bodybuilding protocol of multiple sets per body part and not always to failure.

Each method has its merits and detractions, so as usual the best approach is somewhere in the middle. In the past I’ve used both HIT and a high volume approach with just about equal success. This success with either method simply reinforces the thought of all training modalities having merit for some length of time. The key is the constant change up and variation. That said I’ve also recently been experimenting with something a little different from either approach with tremendous positive results.

I’ve recently been experimenting lifting with as much speed as I can safely execute the movement. This guarantees maximum force output (Force = Mass x Acceleration) and therefore optimum fibrous recruitment. You may have read about this in a previous post in this very forum, so I won’t get into the benefits of lifting fast in this post. One thing I will add is a thought on the optimal number of repetitions. The whole high reps for fat loss and low reps for muscle building strikes me as a little silly and arbitrary when one considers how the nervous system really works so I began searching for a more definitive measure of effectiveness.

I came across a rather interesting idea that described doing as many sets as necessary to get to a magical number of approximately 25 repetitions. In execution it goes something like this:

  • Choose a weight you feel comfortable with for about 6-7 repetitions
  • Begin your first set with strict form
  • Soon as the rep speed slows down in the slightest end the set (don’t try to squeeze out ‘one last rep’) note how many reps you’ve completed
  • Once you’ve recovered appropriately, begin the next set
  • Repeat until you’ve reached 25 repetitions

In other words you might achieve 6 repetitions the first ‘set’ and then only 4-5 in the next set and so on and so on in a decreasing rep pattern. That’s ok - the goal is to hit 25 repetitions irrespective of number of sets. Now if you’re hitting 12 reps on your first set chances are you’ll want to increase the load. This is a great way to manage fatigue and maximise performance per exercise. By keeping the rep speed high and forceful you should be getting better overall muscular activation and therefore strength and growth benefits.

As always let me know how it works out!

Muscle Building Nutrition Q&A – Part 4

Tuesday, April 21st, 2009
Ok, so we’ve established answers to the following questions in the first three parts of this series so far:
1. Would I have to do a bulk?
2. How long would I bulk for?

Alright, how about some practical steps? We’re not going to get into the training aspect of this right now as it’s a rather varied topic, so we’ll just keep the focus on nutrition – which really is what will be the final determinant of gains. By that I mean, I don’t care how hard you’re training, if you’re not eating enough to support muscle growth, you’re not going to be gaining size. Period. (exception to the rule – newbies and those new to ‘effective training’)

To go back to another point made in one of the previous posts – expect to gain at least some bodyfat. If you expect to stay lean, expect to stay the same. I’ll give you a few case examples:

1. I was emailing back and forth with a client prospect who has been solely focused on muscle gain for many, many months. She works with another trainer. In our communications, she ended up sending me her pre- and current ‘bulking’ pictures for review. First thing I noticed? Nothing. Literally, I couldn’t tell a difference at all. I asked her what the difference in weight was. The answer? One pound. I believe this was over the course of about nine months. ONE POUND. Now, it’d be great if there was some massive recompositioning here but there wasn’t – no visible changes. I questioned her on this and she said her trainer wants to her stay lean while gaining size.

The results show how effective that strategy is.

2. A client of my own who I worked with for a little over a year. We did a few cut/bulk cycles and yes she gained some body fat during the bulks. But she had a great mindset for all of it (vital necessity in my opinion) and had the big picture in front of her the whole time. The numbers will make my point for me.

November 19/07

Weight – 110 lbs

Waist – 30 1/4

Hips – 33 3/4

Thighs – 17

Chest – 31 1/2

Arms – 9 1/2

Calf – 10 1/2

Contrast that to her final biweekly:

September 16/08

Weight – 109.4 lbs

Waist – 24 1/4

Hips – 33 1/4

Thighs – 17 3/4

Chest – 32 1/4

Arms – 10

Calf – 11

The most glaring point there is that she weighs basically the same as her starting weight – but her waist is 6 inches smaller. Now that’s a recomp.

A successful bulk is obviously determined by the results gained – hopefully you’ve added some muscle and not too much fat. It’s fine to gain, gain, gain, but if you end up the same bodyweight and the same bodyfat – basically you look the same as you did pre-bulk – it doesn’t seem like you did very well. Now if you end up the same bodyweight, but you’re even leaner (see Case #2 above) then you definitely had a successful run. Gaining 20lbs only to lose 20lbs and look no different – that’s not a good bulk.

How much do I need to eat?

Enough!

You need to definitely have more energy coming in than going out. Again, insufficient food intake = no gains. Look around the gym – most people there are trying to gain some muscle, get stronger, etc. Are they? They appear to be working pretty hard and yet, a year from now, chances are they’ll look no different. Something isn’t working. Could it be what they’re doing/eating outside of the gym? Could it be that they train hard for 45 minutes (trying to build muscle?) and then they hop on the elliptical for 30 minutes PWO (trying to get the cuts?). It doesn’t work.

So how much food? I generally recommend that you start at an assumed maintenance intake. I say assumed because all of the predictive equations are just estimates. They’re not going to necessarily be 100% accurate, but it’s a starting place for us. If you’re not coming off a hard diet, around 15x total bodyweight is a good ball part. Pay attention to results though – if you’re gaining (beyond water and glycogen) then clearly this is not maintenance. If you’re coming off a hard diet, start a bit lower as metabolism will be slightly depressed. Stay there for two weeks and reassess. Did the scale go up? Go down? Stay the same? Adjust accordingly. Assuming you were at maintenance, start adding calories. Again, we’re trying to avoid getting too sloppy so take it easy and just systematically raise them. Start at 10% above maintenance, stay there for a bit, and reassess. What’s happening? Nothing? Add another 10%. You basically continue to add calories until you start to see an upward trend on the scale, but not so quickly upward that it’s clear (in the context of expected rates of muscle gain) that you’re gaining too much fat per given pound of weight gain. If you are gaining too much fat, scale the calories back a bit. It’s all about a simple outcome based approach. Base your adjustments on your results.

Erik Ledin
www.leanbodiesconsulting.com
 

 

 

Lift Fast – The Results are Worth It!

Thursday, March 12th, 2009

The central nervous system (CNS) controls muscle contraction. When the body needs to produce force, such as lifting a weight, the CNS signals an appropriate amount of muscle fibers to contract to get the job done. The more muscle fibers the CNS recruits, the greater the potential for growth. One way to increase the number of muscle fibers recruited is by lifting a weight in an explosive manner. This is due to the fact that it takes more force, and therefore more muscle fibers, to lift a weight in one second than it does in two. If that wasn’t enough reason to train ballistically, recent research has given another.

A study performed at Ball State University was conducted to compare the effects of explosive versus slow contractions on energy expenditure (calorie burning). Subjects performed squats using either explosive (less than one second) or slow (2 seconds) concentric (muscle shortening) contractions, but used the same amount of weight (60% 1RM) and followed the same rep/set scheme (8/4). Results showed that subjects burned 12 percent more calories when they lifted the weight explosively than when they did slowly.

Medicine and Science in Sports and Exercise. 2007 Aug; 39(8): 1291-1301.

Weight Training Guidelines for Beginners

Thursday, March 5th, 2009

Weight training can be a little intimidating and frustrating for beginners. Picking the right load (weight used), exercises, rep range, number of sets to perform and number of days to train during the week to increase muscle growth is an exercise in trial and error, and sometimes, futility. However, researchers from Sweden have come up with general recommendations on training for the beginner looking to build muscle.

After thoroughly researching over 200 studies, they found that most research supports using a weight greater than 60% of one’s one-repetition maximum (1 RM) for increasing muscle size. They also found that exercises involving concentric-eccentric contractions showed the greatest gains in size. Other training recommendations for muscle growth include performing 40 to 60 reps per workout, 4 to 6 sets per muscle group and training between 3 to 4 times per week.

Sports Medicine, 37: 225-264, 2007

Amino Acids Between Meals Aid Muscle Growth

Thursday, February 26th, 2009

In order for muscle growth to occur, the body must be in a positive nitrogen balance. This means that more nitrogen must be coming into the body than going out. So where do you get the nitrogen? Well, amino acids are basically the only source of nitrogen for the body. (Note: Amino acids are the building blocks of protein.) Therefore, consuming an adequate and constant supply of amino acids throughout the day is always in the best interest of any athlete and one of the reasons why we consume 4-8 meals a day. However, due to hectic lifestyles, eating a meal isn’t always an option. This has lead many athletes to supplement their diet with amino acid blends and/or protein supplements between meals. Results from a recent study showed if there was any benefit in doing this.

Subjects in a study conducted at the University of Texas were split into two groups. Each group consumed 3 meals a day (at 8:30, 13:30 and 18:30) with the total caloric intake for each subject based on the Harris-Benedict equation. However, one group consumed a supplement blend containing 15 g of essential amino acids and 30 g of carbohydrates 2.5 hours after each meal. The results from the study showed that the subjects consuming the supplement blend had a greater anabolic (muscle building) effect than those who only ate breakfast, lunch and dinner.

Am J Physiol Endocrinol Metab 288: E761-E767, 2005