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Rest Periods Between Sets: Everything You Ever Needed To Know!

Rest is an often overlooked part of training, yet it can make or break you. For now I will share with you information regarding athletes and rest intervals while training.

By: Dustin Parsons B.S.

Rest periods between sets is an integral and often overlooked contributor to the success of any strength training program. Chances are, you are not optimizing this crucial variable.

So what is the trick to get the most out of your rest? Well, it depends on your training goals and level of conditioning. Optimal rest periods between sets can vary from 30 seconds or less up to 5 minutes!

We know that it takes 2.5 to 3 minutes for the phosphagen (Creatine Phosphate / ATP) stores to fully recover from a set of intense exercise1.

Creatine Super Feature - Part 3: Creatine And The Muscle Fiber Connection.
In this part I will take you through a short course in the science of weight training (resistance training) as it relates to muscle fiber development and bio-energetics. What type do you want/have? All of this and more right here.
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Contrary to what you might think, resting for this time period to allow complete phosphagen recovery is not optimal for all athletes. Let's take a look at some of the facts about rest intervals. I have grouped the information by training goals in order to make it more reader-friendly.


Absolute Strength Athletes

First, let's define who you are. You are training for explosive, low repetition activities of short duration. Muscle hypertrophy and endurance are not your primary concerns. Weightlifters, powerlifters, sprinters, football players, sprint cyclists and any other athletes in a sport emphasizing high intensity/short duration activities, this is you!

Optimal Rest Period

    Your optimal rest period range between sets is 3 to 5 minutes.

    Phosphagen Recovery

      One reason for this longer rest is to allow full phosphagen recovery before you begin the next set. Full recovery allows you to produce the greatest muscular force possible for each set performed, and thus receive the greatest absolute strength gains from your training.

    Higher Testosterone Levels

      Another good reason for this rest interval is that when combined with heavy training loads, it appears to produce greater testosterone levels in experienced strength athletes incorporating large muscle group exercises in their training2. A higher testosterone level equates to greater gains in strength.


Hypertrophy & Endurance Athletes

Who are you? You are an athlete training for muscular size and/or to increase your ability to apply near maximal muscular force over a time period. Bodybuilders, fitness buffs, long-sprint runners/swimmers/cyclists, wrestlers, soccer players, and sports similar in intensity, this is you!

All About Recovery!
Below I will discuss some secrets that I use with my athletes. When talking about recovery from training and competition, there are basically 5 areas to focus on.
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Optimal Rest Period

    Your optimal rest period range is 30 to 60 seconds.

    Another way to look at this is to shoot for a work-rest ratio of 1:1. This means that you spend the same amount of time resting as it took you to complete the previous set. Athletes whose sport demands 1 to 3 minutes of all out effort with little or no rest may benefit from a work-rest ratio of 1:1 or slightly higher.

    This means that you spend the same or less time resting than you do performing each set of exercise1. In either case, the principles behind the practice are the same.

    Higher Lactate Levels

      Using this rest interval between sets creates high lactate levels in the exercising muscles3. This forces the body to improve its ability to buffer the accumulating lactate, thereby improving your ability to sustain moderate, near maximal or maximal contractions over a given time period.

    Increased Growth Hormones

      High volume, short rest period training has also been found to increase human growth hormone levels when compared to training with longer rest periods 2.

    Maximized Hypertrophy

      In addition, muscular hypertrophy (growth in size) will be maximized using the 1:1 work-rest ratio in conjunction with high training volume and a weight load between your 8 and 12 repetition maximum. 1.

Hypertrophy-Specific Training Program!
Hypertrophy-Specific Training (HST) is based on physiological principles of hypertrophy first discovered in the laboratory. These principles were then organized into a method of mechanically loading the muscle to induce hypertrophy. Try this program.
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Special Considerations

Keep in mind that whatever you are training for, beginners need more rest between sets then the seasoned veterans. If you are just starting out, stay in the conservative end of your range.

If you are experienced you will benefit more from a shorter rest period. In addition, athletes coming back from periods of detraining due to injury or otherwise should increase the amount of rest between sets until you are back in your normal physical condition.

How Long Do You Rest Between Sets?

It Varies Depending On The Exercise.
30 To 60 Seconds.
1 To 3 Minutes.
3 To 5 Minutes.
None. Rest Is For The Weak!


The Unique Case of Circuit Training

Traditional circuit training incorporates a rest period of typically less than 30 seconds, or a work-rest interval a fair margin greater than 1:1. So where does this fit into an athlete's training? One has to understand that circuit training is designed to provide a happy medium between strength and aerobic training.

Due to the short rest interval between sets, strength gains are less than optimal with circuit training (30 to 50% less) when compared to traditional strength training 1. However, modest gains in aerobic capacity can be achieved.

So who benefits from circuit training? Athletes that require a balance of both strength and cardiovascular endurance for their sport, athletes and fitness buffs with limited time and anyone wishing to add variety to their training would all benefit from circuit training.

Circuit Training!
Circuit Training is an excellent way to simultaneously build strength and stamina. Full workout circuit included!
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In Conclusion

No matter what your sport or fitness passion may be, understanding the science of rest between sets will put you in the driver's seat on the road to your training goals.

As you can see, not all athletes benefit from waiting the full three minutes for complete phosphagen recovery. Different periods of rest can produce very specific results. It is up to you as the athlete to decide which approach will be of greatest benefit to you.

References

  1. Designing Resistance Training Programs Fleck, S.J., and W.J. Kraemer. . Champaign, IL: Human Kinetics. 1987.

  2. Kraemer, W.J. Endocrine responses and adaptations to strength training. In: Strength and Power in Sports, P. Komi, ed. Oxford: Blackwell Scientific. 1992. pp. 291-304.

  3. National Strength and Conditioning Association, Essentials of Strength Training and Conditioning. Champaign, IL: Human Kinetics. 1994.

Dustin Parsons B.S.

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