Category Archives: cross training

Rapid-Fire Sets: A Strength Training Workout For Endurance and Strength

The Rapid Fire Set workout can be done on a Smith Machine rack or on strength machines at the gym

The following strength training workout is an excellent way to test your strength while still developing your muscular endurance.

It requires that you can quickly adjust the weight: Gym machines, a Smith rack, or at home with quickly adjustable dumbbells. I wouldn’t recommend doing this workout with conventional barbells or dumbbells unless you have the entire training area to yourself, such as at a home gym. Definitely don’t do this with barbells and dumbbells at a regular gym.

You basically do a lot of light, gradually increasing reps for each exercise in rapid-fire sets of just 4 reps per set. Eventually, you hit a max weight, then take the weight down and repeat the rapid-fire cycle one more time.

This can build muscular endurance while still building muscular strength, and gets your heart rate going enough to generate better mitochondrial development than your typical strength endurance weight training.

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A Quick Cross Training Workout For The Spin Bike

Photo by Ivan Samkov on Pexels.com

The following cross training will really challenge your quads, hamstrings and glutes. Definitely don’t do this cross training workout if you’re sore and recovering from some other hard lower-body workout.

I would save a workout like this for base training, if you’re coming off an easy workout, or you’re not actively training for a goal race in general.

The Workout: Start the spin bike at the lowest intensity, level 1.

Every time the minute counter turns over (e.g. at 1:00, 5:00, etc), adjust the level to match the number in the minute column. So at 2:00 you’ll set the level to 2, and you’ll increase the level by 1 every minute thereafter.

If the lowest spin bike levels feel too light and easy for you (for example you normally do easy spin bike sessions at level 4), you don’t have to start at or go down to level 1. If you generally bike easy at level 4, then for any level 4 and below you can just go at level 4. In this example, you do the first 4:59 at level 4, then at 5:00 you switch to level 5.

Once you get to a level that’s too tough, take it back down to a low, comfortable level. Then once the timer reaches 10:00, repeat the process by adding the digits in the minute column to determine the level, e.g. 11 –> 1 + 1 = Level 2… or in the level 4 example above, that person can just stay at level 4 for now.

If you can get to level 10 or higher without needing to slow down, great! You don’t have to add the digits at 11:00 or higher just yet. Just keep climbing levels until you need a break, then add the digits of the next minute to see how far down you can take the spin bike’s level. For example, say you get tired after 16:00 at level 16. Then at 17:00 you take it down to level 8 (17 –> 1 + 7 = Level 8).

If you’re a super strong cyclist and plan to go longer than 25 minutes, you may be able to reach the bike’s maximum level 25 (most spin bikes only have 25 intensity levels). If you get to 26:00 in this case, just take the spin bike back down to level 8 (26 –> 2 + 6 = Level 8… you must be super strong if that’s too easy for you; if so you can set the level higher to whatever level you prefer to cruise at). Then from there build the levels back up each minute. Do note that this workout method after you max out the bike won’t get you higher again than level 14 once you do so, so if maxing out is your goal and you can max out the bike then you may want to stick to 30 minutes or less.

Regardless of your abilities, you can repeat this level-up process until your spin bike workout is finished, whether it takes 20 minutes, 40 minutes, 3 hours, etc.

You could also do this workout on an elliptical, rowing machine, or ARC Trainer. But it can be very demanding to do more than recovery-level training on these devices. To do a workout like this on a machine like those may defeat the purpose of cross training unless you’re in an offseason, or are a triathlete or similar and this sort of demanding training is in line with your key workout needs.

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A Home Endurance Workout Series Using 5-lb Dumbbells

My 5 pound dumbbells

With Nevada’s “Pause” lockdown reducing gym capacity to 25%, going to the gym to strength train or otherwise exercise could become largely impractical. I don’t foresee the restriction being lifted anytime soon. Plus, with New Year’s having arrived, what little capacity is available is likely getting swallowed up by many poorly-planned New Year’s resolutions.

Until a couple weeks ago, I hadn’t lifted weights at all, since I hadn’t been to the gym at all. I’ve had personal dumbbell weight sets at varying points in my life, but the last few years certainly hasn’t been one of them. My only free weights are a pair of 5 pound dumbbells that I once used in a clown theatre piece years ago. I long since figured I’m probably not getting swole off such light weight.

Or so I thought.

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Reverse Engineering a 1RM Formula to find your training weight

In personal training you can use max-effort reps on an exercise with any weight to estimate a trainee’s one rep maximum (1RM, the most weight you could possibly lift one single time at full strength) for an exercise without the risk of having them actually go and try to lift the maximum weight they possibly can.

A CPT has a trainee lift as much weight as they can for 4-6 reps, working up until they reach a failure point, then use that max weight and the number of reps performed in a mathematic formula that can estimate a 1RM, which you then use to program workouts for that exercise.

This is similar to runners using conversion charts to figure out from a previous 5K or 10K time how fast you could run a mile, or how fast you could run a marathon, without you actually going out and try to do either. Weightlifting and endurance running of course come with different goals, but both use formulas and estimates to determine how to train.

There are a lot of 1RM formulas, and each certifying organization seems to recommend a different one. NFPT for example uses the Brzycki Formula. Meanwhile, NASM just gives you a chart, and that may have been calculated from just about anywhere.

To digress a moment, I personally use the Epley Formula. For what I’m about to describe, I have found it from experience more accurate for training purposes, as well as accurately gauging my actual one rep max. Various studies also indicate that it’s among the most accurate of the formulas.

I tell you all this because I actually used the weights I used during swolework not just to determine my 1RM for those weights, but also reverse engineered the formula to get a more specific answer for weight to use in exercises.

For example, at one point I was doing four 6 rep sets of lat pulldowns at 85 lbs, for me pretty heavy. I was giving close to max effort on these 6 reps each set, and I wanted to focus more on endurance with more reps, 12 reps to be exact. But I didn’t want to take the weight so far down that my strength wasn’t being challenged.

So first, I would use the Epley formula to estimate my 1RM, presuming that 85 lbs was the most weight I could lift in one 6 rep sitting.

Weight: w = 85
Reps: r = 6

1RM = w(1 + (r/30))
1 + (6/30) = 1.2

1RM = w * 1.2
1RM = 85 * 1.2 = 102 lbs

I can use this formula backwards by applying some algebra, understanding that any equation divided by itself equals 1.

If I divide both sides by (1 + (r/30)), I can isolate the weight w to one side, and basically create a reverse engineered formula where I can use my known 1RM and a selected number of repetitions to determine how much weight I need to use for that number of repetitions to get the maximum benefit from the workout.

1RM / (1 + (r/30)) = w

So, knowing I want to do 12 reps (r = 12), and knowing my 1RM = 102, I can determine the amount of lifting weight to use:

102 / (1 + (12/30)) = w

(12/30) = 0.40

102 / 1.40 = w

w = 72.9

I can’t get a lat pulldown machine to give me exactly 72.9 pounds of resistance (unless maybe I have one of those expensive Tonal machines), but I can get a multiple of 5, so I round down to 70 lbs. Sure, I could try rounding up to 75 lbs and see how that goes. But it’s probably safer to round down and get through a whole workout with relative ease before deciding to add that 5 lbs.

So then I do my 12 rep sets of lat pulldowns at 70 lbs weight, exercise from there, and get the max value out of that 4 sets. And in my experience, this weight ended up giving me exactly the right challenge for that portion of the workout.

Note: Sure, that’s in line with NASM’s 50-70% max recommendation for stabilization and endurance. But rather than using their wide range (51-72 lbs) and just randomly picking a weight within that, I get a firm answer that’s in line with the specific number of reps (12) I’m using. Let’s say I do 15 reps instead, r = 15.

102 / (1 + (15/30)) = w

(15/30) = 0.50

102 / 1.50 = w

w = 68

At 15 reps, it would be more appropriate for me to use 65 lbs. If I were to use the same weight, it might be too much, unless I rounded up to the nearest 5 lb increment from 68 for, say, the last 1-2 sets, e.g. I did the first 3 sets at 65 lbs, and the last set at 70 lbs, or maybe the first 2 sets at 70 lbs and then the last 2 sets at 65 lbs, etc.

In fact, a logical progression for me from sets of 12 endurance-themed reps at 70 lbs, instead of increasing the weight, would be to increase the number of reps to 15 at the same weight, and see if I can handle that. If I can, it might work out to bring the number of reps back to 12 while increasing the weight to 75 lbs.

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Two Common Strength Training Mistakes

Photo by Victor Freitas on Pexels.com

I spend a lot of time in the gym with a lot of people who work out. Social media shows me countless others who also work out, train others, etc. I don’t have a Kinesiology degree but I know what I’m talking about. I preface with this because some of you are not going to like what I’m going to say next.

The two most common mistakes I see people make with strength training are:

  1. People train like a powerlifter, with powerlifter goals, even though that’s not or should not be their goal.
  2. People train continuously without taking any proactive, conscious training breaks.

Why are these problems?

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Current October 2020 Training Status Report

I have been training for a half marathon to be determined in early January, though (as long as it’s not cancelled) that half marathon will likely be the Lake Mead Half Marathon on January 9.

I’m on the 5th week of an algorithm-programmed Garmin plan, and have done quite well on all runs throughout the plan. By maintaining the GPS-estimated assigned paces, I have actually completed my easy training runs with an average pace of about 10:00 per mile (6:13/km), far faster than I had previously run my easy runs.

These faster easy runs actually have been little trouble to complete, thanks to one simple adjustment: I focus on maintaining a light, quick cadence over anything else. I used to run at about 160-165 steps per minute, and am now doing all my runs at 174-178 steps per minute. Clearly the extra steps per minute are making a difference not just with the average pace, but making that pace easier to sustain. For whatever reason, this was always hard to do in Chicago, but has been very easy to do now.

The Garmin algorithm plans to have me run a 1 mile time trial on Wednesday, from which it should program my subsequent speed, tempo and long run workouts. The last mile I ran about a year ago came out to a disappointing 7:34, and my documented PR is 7:05.

According to Garmin’s race predictor, I apparently have the fitness to smash my PR’s in the 5K, 10K, Half Marathon and of course full Marathon. The Electric Blues Daniels tables indicates from these that I could probably run the mile in 6:33. I don’t foresee running that mile time after having done no speedwork for a while, but to break 7 minutes on a mile trial would be terrific.


I have also cross trained quite a bit during the training plan. It might be a big reason I’ve been able to improve so quickly.

After taking on a Garmin Badge Challenge to bike 300K in a month, bike 16 hours, and walk 16 hours… I ended up riding the spin bike at the gym almost every day, about 45 minutes each time, which at my usual 95-110 rpm came out to about 12-13 miles each go. I also walked about a couple miles most days to get those 16 hours in.

I’ve also continued strength training with my mostly upper body push/pull 20 minute workouts roughly 3-4 times a week throughout all this.

Between all this training and the 5 running workouts each week, I’ve probably logged about 8-10 hours of total training (not including the walking, which I generally don’t count as training) each week since beginning the Garmin plan. There were many days I’d spend 2+ hours at the gym, aside from my running (none of which, by the way, was done on a treadmill; all of my running was outside in the morning).


Other than feeling understandably weary at times, I haven’t been too beaten up or worn down by all this.

One key to that is maintaining a protein rich diet, eating to maintenance calories instead of a calorie deficit, and having given a backseat to intermittent fasting.

I’m focusing more on fueling for recovery and eating to a minimum of energy availability. This leads to a slight calorie deficit when I hit the minimum calories, though I’ve still managed to get my bodyfat to 18% while keeping my weight around 170-172 lbs (78kg).

The other key, obviously, is getting enough rest. I have slept an okay amount, and for me I usually do get less sleep than average during summer due to the heat and extended sunlight hours. I generally sleep better during winter when it’s dark more often. Naturally, I wake up rather early, often around 4-6am, and I go to bed around 9-10pm. I have also taken advantage of all this free time and taken naps on various days, which slightly helps. Now that I’ll be working again, naps will only be an option on the weekends and holidays.


After last month’s extensive cross training, I’m going to scale that back and diversify that a bit more. After sticking almost exclusively to the spin bike, I’m now going to mix in sessions on the rowing machine and the ARC Trainer, and will probably cross train less frequently than the “pretty much every day” I had been doing.

I can now take it easy on the walking, doing it only to make sure I get 10,000 daily steps in (an ongoing Seinfeld calendar goal of mine, which is now at 32 days straight and counting). Plus I generally train less time on the rowing machine (I like to row for 20 minutes max vs the 45 minutes I always go on the spin bike), so that will lead to shorter gym visits than 2 hours.

Also, of course, working again means I have fewer time windows to work out. The early morning runs will remain, so long as I can finish workouts well before 7am so I can shower/dress and commute to work. I can also train following work most afternoons (unless a situation demands overtime, of course), and will probably do my cross training then… crowded gym be damned. The weekends of course are wide open.


So, in all, I am once again seriously training. I am training a lot. And I’ve been able to train consistently at a higher level than I have before.

But what about my marathon plans? Well… I’ll get into that in a bit….

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10+ Thoughts on Building Training Breaks Into Strength And Endurance Training

Runners typically train for a race through 8-24 weeks of focused, progressive training, then take a break of either reduced or no running for some time afterward.

It just occurred to me that:

  1. People who primarily strength train as their exercise never train like this.
  2. Many who strength training typically see their development and progress hyperbolically slow after training for some time, and take for granted that this is normal.
  3. Serious runners also see their progress hyperbolically slow after years of mostly continuous hard training for some time, and take for granted that this is normal.
  4. Except for a weeks/months long “offseason” where they basically don’t train at all, most serious runners train continuously for their entire season with few, often brief planned breaks
  5. Runners could benefit from peak-and-valleying their training season in the style of a 12 month grade school. Basically, you ramp training around recurring goal races, with the plan to downscale training in the week(s) following those periodic goal races.
  6. Strength trainees may see more progress if they were to build regular periodic training breaks or “de-loads” into their training. Basically, progress training as usual for 8-24 weeks, then take a week or more where training stops and/or volume (whether reps, weight, frequency, or all of the above) are substantially, pointedly reduced. You rebuild, re-load energy and drive, then resume training a few days/weeks later really to attack the weights/road/water/bike/etc.

6a. Unplanned breaks like injuries and other life emergencies don’t count. Your body and mind are taxed and have to heal in other ways during breaks like these, and aren’t as fully available to rebuild and heal the way they do during a conscious, planned break in training. Sure, some recovery can happen, but imagine how you feel after a very stressful vacation. Are you “refreshed” and 100% when you go back to work or school?

  1. I imagine a lot of the stalled progress in muscle growth and other “GAINZ” most strength trainees experience would cease to stall if they consciously built to a scheduled peak over weeks/months, then made a point to take a 1-2 week break afterward before resuming.

7a. Fitness loss is minimal during a 1-2 week extended break. As distance running’s Hanson Brothers have attested, the body tends to reap direct benefits from a key workout (and conversely, experiences a loss of fitness from a lack thereof) after 8-12 days. You can probably take a week off before resuming training and experience little to no loss in strength/fitness from where you left off. Two weeks off, and the loss would be very slight, to the point where after a couple weeks of gradually resumed training you’d be back to where you had left off.

  1. So now, I’m looking at you, runners. Many of you have the right idea, where you start training mainly to run a goal race, train hard for that 8-24 weeks, then run your goal race and take it easy for a few days/weeks. There are certainly many things you could do better, but you have the right idea.

8a. And then there are some of you who continiously train, and train hard every week. You don’t take many planned breaks, maybe after a marathon or a longer race, but otherwise you’re doing high intensity workouts and/or high volume almost every week. And then you’re wondering why you get injured or you constantly have nagging injuries.

8b. Some of you call them “niggles”. I call them red alarm signals that you need to take a few days off.

  1. This doesn’t mean don’t run unless you’re training for a goal race. This means your training should more consciously ebb and flow, at the very least follow a 3-5 week continuous cycle of gradually increasing volume to a peak before a week of lighter training. But what could benefit you most is longer 8-16 week cycles of gradually progressing volume, then or preceding gradually increasing intensity, before tapering and/or a goal race, followed by a 1-2 week period of reduced or eliminated training at a substantially lower intensity.
  2. Plan breaks into your training before life makes you take unplanned breaks from training.
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