The transformation of the Healthy Irishman (and bro) continues
- Todays workout is a HIIT session
- Tomorrows workout is a resistance training session
And they’re both going to be nasty workouts
Popularity: 5% [?]
The transformation of the Healthy Irishman (and bro) continues
And they’re both going to be nasty workouts
Popularity: 5% [?]
You design your own workouts.
You specify your reps and sets.
You modify your lifting tempo and your range of motion.
But, what about rest between sets?
Do you have any idea how long you should be resting between sets?
Well, according to the latest research, “the rest interval between sets is an important variable that affects both acute (short term) responses and chronic (long term) adaptations to resistance exercise programmes”.
Researchers reviewed 35 studies in which they examined both acute responses and chronic adaptations, with rest interval length as the experimental variable.
In terms of acute responses, a key finding was that when training with loads between 50% and 90% of one repetition maximum, 3-5 minutes’ rest between sets allowed for greater repetitions over multiple sets. Furthermore, in terms of chronic adaptations, resting 3-5 minutes between sets produced greater increases in absolute strength, due to higher intensities and volumes of training.
Training for Strength = 3-5 minutes rest between sets
Similarly, higher levels of muscular power were demonstrated over multiple sets with 3 or 5 minutes versus 1 minute of rest between sets.
Training for Power = 3-5 minutes rest between sets
When the training goal is muscular hypertrophy, the combination of moderate-intensity sets with short rest intervals of 30-60 seconds might be most effective due to greater acute levels of growth hormone during such workouts.
Training for Hypertrophy/Size = 30-60 seconds rest between sets
Finally, the research on rest interval length in relation to chronic muscular endurance adaptations is less clear. Training with short rest intervals (e.g. 20 seconds to 1 minute) resulted in higher repetition velocities during repeated submaximal muscle actions and also greater total torque during a high-intensity cycle test.
Both of these findings indirectly demonstrated the benefits of utilizing short rest intervals for gains in muscular endurance.
Training for Endurance = 20-60 seconds rest between sets
The rest interval between sets is a very important aspect of any resistance program…or at least it should be.
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You gotta love the Japanese.
They start with a little of this:
Add in a little of this:
And end up with this:
Occlusion or Kaatsu training.
In a nutshell, Occlusion Training involves applying a tourniquet of some sort (Researchers use a pneumatic tourniquets similar to a blood pressure cuff) to the proximal portion of one of your limbs to restrict blood flow (partially or fully) while you perform low intensity exercise.
According to this recent study:
Low intensity occlusion (50-100 mm Hg) training provides a unique beneficial training mode for promoting muscle hypertrophy.
Training at intensities as low as 20% of 1 rep maximum with moderate vascular occlusion results in muscle hypertrophy in as little as 3 weeks.
A typical exercise prescription calls for 3 to 5 sets to volitional fatigue with short rest periods.
The metabolic buildup causes positive phsiologic reactions, specifically a rise in growth hormone that is higher than levels found with higher intensities.
Occlusion training is applicable for those who are unable to sustain high loads due to joint pain, postoperative patients, cardiac rehabilitation, athletes who are unloading, and astronauts.
In fact, during the study, test subjects saw some pretty startling results:
And all you need to turn yourself into a muscle-building Kaatsu warrior is some bondage gear and the ability to ignore the stares and giggles of your fellow health club members.
So, what do you think of that?
I may come back and expand this post with more data in the next few days. I just received a full copy of this latest study and I am poring over the details. But, I couldn’t wait to share this with you.
Looking forward to the comments.
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Reference
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A couple of days ago, I introduced you to one of my favorite training methods

At the end of that post, I promised you a pair of Tabata style workouts.
And, seeing that I am a man of my word, here you go…
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…but, before I dive right into the workouts, I should probably review some of the theory / rules behind these workouts.
Pre-Workout Checklist
Execution
Note: Use a clock, stopwatch, workout buddy or a dedicated HIIT timer to keep track of your work sets and rest periods. I prefer….
Instead of giving you a static workout with pre-selected exercises, I have decided to organize the workout by movement patterns (e.g. Vertical Push) or dominant muscle groups (Quadriceps).
Within those groups, I have given you a list of related exercises.
For example, within the Vertical Push Movement Group, you can choose from 1 Arm Overhead Press, Push Presses, 1 Arm Grappler Presses, Side Presses, etc…
Remember, the goal is to go as hard as you can for 8 sets of 20 seconds.
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And while it’s not required, I highly recommend using an interval timer with your Tabatas. Trying to watch the clock an do these workouts is a real pain in the butt.
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