San Diego Core Fitness Blog https://sandiegocorefitness.com/common/rss2?&channel=blog Syndicated BLOG from San Diego Core Fitness. en-us Copyright 2015 San Diego Core Fitness Sat, 18 Jul 2026 23:34:13 -0700 justin@sandiegocorefitness.com (Justin Fassio) BeST BOOT CAMP WORKOUT https://sandiegocorefitness.com/3891114 Your energy redefined:

Do you know which energy system(s) you use when you workout and how they contribute to getting you to your fitness goals? Unless you are a trainer you likely don't know the answer to this question, even though it is one of the most important factors in reaching your [...]

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Your energy redefined:

Do you know which energy system(s) you use when you workout and how they contribute to getting you to your fitness goals? Unless you are a trainer you likely don't know the answer to this question, even though it is one of the most important factors in reaching your fitness goals, whatever they are.

Your body operates on three different energy systems: phosphagen system, glycolysis, and aerobic system and these three systems are generally divided into two types of exercise: anaerobic and aerobic exercise. I could go into how each of these three systems work on a biological level but that would go against simplifying how you can utilize these systems to maximize every minute of your training sessions.

Although the terms aerobic and cardio are widely used interchangeably I'd like to change that for the sake of simplicity and workout design. In this article and for our boot camps we define aerobic exercise as any exercise utilizing major muscle groups in repetition for more than 2 minutes in duration at a steady heart rate of around 65% of your maximal heart rate, which focuses on improving your aerobic energy system. Cardio will be defined as any exercise that uses a load of 0% to 25% of your body weight at a duration of 20 seconds to 2 minutes, at a variable heart rate that tops out at 90% to 95% of your maximal capacity, which improves both your aerobic and glycolysis energy systems. Anaerobic exercise will be any exercise done at a load above 25% of your body weight for a duration of less than 20 seconds that pushes your heart rate to 95%+ of maximal, which improves your phosphagen energy system and increases lean muscle mass. There is a lot of dispute, even in the science, of where these lines should be drawn but you have to draw them at some point in order to create workouts that help you progress and actually get you to your goals.

If we look at how exercise is defined in the two energy system manner, you will see that jogging, swimming, and biking are generally regarded as aerobic exercise and standard exercises like squats, chest press, and curls are considered anaerobic exercises. But what about basketball, high intensity interval training, push ups, sprints, and calisthenics in general? Well, they also fall into anaerobic exercise. Basketball? That doesn't make much sense to me to be lumped in with a pyramid set of chest press: the goal of each and their effect on our physiology are too different to be considered in the same category and so I treat them as categorically different when I construct my workout plans. This is why we use aerobic, cardio, and anaerobic as three separate terms with three different meanings.

Creating your training schedule:

If you have time and you want to build the perfect training schedule you will need to train all three energy systems for a split that suits your fitness goals. Everybody should create their own split that emphasizes their personal goals such as increasing lean muscle mass, increasing heart health, or maybe reducing bodyfat, but for the sake of the general population I would recommend this split: 1 hour a week of anaerobic training done one day a week, full body; 2.5 hours of cardio training, done 5 days a week split into 30 minute sessions; and 3 hours of aerobic training done 4 days a week in 45 minute sessions. If you don't have the time for this kind of split, cardio training 2 to 3 hours a week split into 30 minute bouts a day would be the best use of your time to reach any fitness goal you may set.

Anaerobic Training

The duration of each training session is important because we don't want to overtax any one of your energy systems, rather we want to maximize their potential and stop before we overshot the sweet spot. I only recommend 1 day a week of pure anaerobic exercise because if performed to failure, in sets lasting less than 20 seconds, you will need to recover sufficiently before returning to another anaerobic session, which can take three days or more if you are not including other training in your schedule. I recommend a full body workout isolating muscle groups going in order of larger groups to smaller, for example; perform all of your chest exercises before moving onto tricep exercises or training your lats and upper back before performing bicep exercises. I also recommend splitting upper body muscle groups with legs, for example: do back and biceps, legs, chest and triceps, then finish with abs. This is just an example, if your goals are to increase lean mass in your chest then I would start there as an example of customizing the split to your personal goals.

In your anaerobic training session you will want to use a weight and rep count that will put you to failure or near failure (significant spotting required) in just under 20 seconds. This will help to increase your lean muscle mass in targeted muscles as well as increase testosterone levels to help the growth of other muscles in your body. Side note: by not giving adequate attention to your legs you are missing out on a huge testosterone boost for upper body gains.

Aerobic Training

Your aerobic workout should be the least complicated of all. Find an activity that you can do for no less than 20 minutes and optimally for up to 45 minutes that activates major muscle groups repetitively for the full duration of the workout. I am a disabled veteran with multiple surgeries on my ankles, which affects my knees, so running is out therefore I go with road biking personally. Getting a bike fitted to you or going to a store that analyzes your running form can go a long way to giving you a pain free aerobic training experience. Aerobic exercise should be performed without any pain in your muscles or joints besides the occasional burn on an incline or cramps towards the end.

Cardio Training

Your cardio training is going to be the most complicated and rewarding part of your training regimen. for this reason we will be leaving to part 2 of this article as it is the foundation of our training program and deserves our full attention.

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Sun, 05 Jul 2026 10:57:00 -0700 https://sandiegocorefitness.com/3891114 JUSTINFASSIO FIT REP BeST BOOT CAMP BOOT CAMP WORKOUTS
15 Minute Runners Leg Workout https://sandiegocorefitness.com/3782620

15 MINUTE Runners Legs Workout

This is a continuing series, please scroll past the exercise theory to get to the exercises if you have read this before.

Types of Exercise

There are five basic types of exercise that we utilize in our boot camps, these exercise categories [...]

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East Mission Bay Plyo Jumps
East Mission Bay San Diego Boot Camp

15 MINUTE Runners Legs Workout

This is a continuing series, please scroll past the exercise theory to get to the exercises if you have read this before.

Types of Exercise

There are five basic types of exercise that we utilize in our boot camps, these exercise categories include:

  • Resistance Training - Develops strength and power and endurance to a lesser degree. Examples: Push ups, pull ups, sit ups, body squats, any exercise using benches, curbs or walls.
  • Cardiovascular Training - Develops heart and lung efficiency and endurance. Examples: Running, hill repeats, plank relays, indian runs, jumping jacks, or any activities that we do at an elevated heart rate for an extended period of time, such as the Parkour Boot Camps or Super Sweatdowns where we don't let you fully recover to a resting heart rate.
  • Agility and Speed Training - Develops fast movement and precision reflexes. Examples: Sprints, running sideways or backwards, curb exercises and Plyo Box or bench work, shuffles, martial arts movements.
  • Plyometrics - Develops power in movement and resilience. Examples: Vertical jumps, long jumps, medicine ball exercises, hopping, skipping.
  • Stretching - Develops flexibility. Examples: Hurdler’s stretch, most yoga poses, toe touches. Stretching can be done in many ways but we concentrate on dynamic or movement based stretching before exercise and static or non-movement based stretches post exercise. Follow our usual stretching protocol for all workouts.

    Exercise Order

    Exercise order is very important, so if I give you a list of exercises, please follow the order or their is a possibility of injury or you just won't get the full benefit of the workout. Generally speaking here is the order we follow in most boot camps:

    1. We start with a basic dynamic stretching warm up and then move to low rep esistance exercises, which require more control and effort, and slowly work toward cardiovascular exercise, which consumes energy too quickly to do before resistance work. When we include power exercises such as plyometrics and speed and agility training, we schedule them in that order between resistance and cardio exercises in order to ensure the best performance and highest intensity for each exercise.
    2. Remember to break periodically to catch your breath. We generally utilize 20/10 and 30/10 intervals and 60 to 90 second run periods between stations for Parkour workouts.
    3. After a warm up, start with some low intensity exercise before you get into high intensity work. Alternate between high and low intensity periods and end with a low intensity period before the cool down at the end.

    Core Fitness Fall into Winbter Circuit

    Circuit training is another way to break down large quantities of repetitions while keeping the intensity high. In a circuit, several exercises are scheduled in rapid succession with only a few reps of each. In this circuit you are not allowed to rest between exercises. Use a 30/30 Interval and follow the exercise order precisely. Take a 60 second rest period after completing all the exercises in the circuit this may be walking or standing.

    Circuit #1 (Performed on bench seat)

    Tabata Intervals to be repeated 3 times before moving to the next exercise:

    • Split Squat right toes on bench, left foot down - 3 x 20 seconds
    • Pulsing Split Squat right toes on bench, left foot down - 3 x 20 seconds
    • Deep Super Lunges, Left foot on bench seat, deep bend in right leg lunging right knee up to stomach - 3x 20 Seconds

    Circuit #2 Same as number one but performed on right foot.

    Circuit #3

    Tabata Interval to be repeated 1 time through before repeating circuit:

    • Running High Knee March - 1x20 Seconds
    • High Knee Jumps- 1x20 Seconds
    • Box Jumps - 1x20 Seconds

    Cool down with walking for 30 to 60 seconds and then some static stretching. If you'd like to make this a longer workout you can turn it into a Parkour workout. All you need to do is jog from one bench area to another inbetween the circuit workouts. If this is too intense you can switch the intervals to 30/10, which will give you a little rest period inbetween each exercise.

    I hope you enjoy the workout and we'll see you when we get back!

    Best,

    Rachel and Justin

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    Tue, 30 Sep 2025 10:43:00 -0700 https://sandiegocorefitness.com/3782620 JUSTINFASSIO FIT REP
    15 Minute Maintenance Workouts https://sandiegocorefitness.com/3776074

    15 MINUTE MAINTENANCE WORKOUT

    by Justin Fassio
    Date Released : 27 Aug 2026

    We may be gone for the week but that doesn't mean you can't get out there and workout on your own. You'll be fine if you don't, you'll just have to suffer through a couple boot camps before your body adjusts again b [...]

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    15 MINUTE MAINTENANCE WORKOUT

    by Justin Fassio
    Date Released : 27 Aug 2026

    We may be gone for the week but that doesn't mean you can't get out there and workout on your own. You'll be fine if you don't, you'll just have to suffer through a couple boot camps before your body adjusts again but if you don't want to lose that momentum, then try this workout throughout the week and you'll be ready for when we get back.

    Types of Exercise

    There are five basic types of exercise that we utilize in our boot camps, these exercise categories include:

    • Resistance Training - Develops strength and power and endurance to a lesser degree. Examples: Push ups, pull ups, sit ups, body squats, any exercise using benches, curbs or walls.
    • Cardiovascular Training - Develops heart and lung efficiency and endurance. Examples: Running, hill repeats, plank relays, indian runs, jumping jacks, or any activities that we do at an elevated heart rate for an extended period of time, such as the Parkour Boot Camps or Super Sweatdowns where we don't let you fully recover to a resting heart rate.
    • Agility and Speed Training - Develops fast movement and precision reflexes. Examples: Sprints, running sideways or backwards, curb exercises and Plyo Box or bench work, shuffles, martial arts movements.
    • Plyometrics - Develops power in movement and resilience. Examples: Vertical jumps, long jumps, medicine ball exercises, hopping, skipping.
    • Stretching - Develops flexibility. Examples: Hurdler’s stretch, most yoga poses, toe touches. Stretching can be done in many ways but we concentrate on dynamic or movement based stretching before exercise and static or non-movement based stretches post exercise. Follow our usual stretching protocol for all workouts.

    Exercise Order

    Exercise order is very important, so if I give you a list of exercises, please follow the order or their is a possibility of injury or you just won't get the full benefit of the workout. Generally speaking here is the order we follow in most boot camps:

    1. We start with a basic dynamic stretching warm up and then move to low rep esistance exercises, which require more control and effort, and slowly work toward cardiovascular exercise, which consumes energy too quickly to do before resistance work. When we include power exercises such as plyometrics and speed and agility training, we schedule them in that order between resistance and cardio exercises in order to ensure the best performance and highest intensity for each exercise.
    2. Remember to break periodically to catch your breath. We generally utilize 20/10 and 30/10 intervals and 60 to 90 second run periods between stations for Parkour workouts.
    3. After a warm up, start with some low intensity exercise before you get into high intensity work. Alternate between high and low intensity periods and end with a low intensity period before the cool down at the end.

    Core Fitness Summer Break Circuit

    Circuit training is another way to break down large quantities of repetitions while keeping the intensity high. In a circuit, several exercises are scheduled in rapid succession with only a few reps of each. In this circuit you are not allowed to rest between exercises. Use a 30/30 Interval and follow the exercise order precisely. Take a 60 second rest period after completing all the exercises in the circuit this may be walking or standing.

    Here's Circuit #1 (to be repeated 3 times):

    • Incline Bench Push-ups - 30 seconds
    • Knees locked Bench Sit-ups - 30 seconds
    • Bodyweight squats - 30 Seconds

    Here's Circuit #2 (to be repeated 3 times):

    • Incline Bench Good Morning Push Ups - 30 Seconds
    • Straight Leg V Ups- 30 Seconds
    • Alternating Step Ups - 30 Seconds

    Here's Circuit #3 (to be repeated 3 times):

    • Decline Bench Push Ups - 30 Seconds
    • V Crunches - 30 Seconds
    • Alternating Plyo Step Ups - 30 Seconds

    Cool down with walking for 30 to 60 seconds and then some static stretching. If you'd like to make this a longer workout you can turn it into a Parkour workout. All you need to do is jog from one bench area to another inbetween the circuit workouts. If this is too intense you can switch the intervals to 30/10, which will give you a little rest period inbetween each exercise.

    I hope you enjoy the workout and we'll see you when we get back!

    Best,

    Rachel and Justin

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    Wed, 27 Aug 2026 08:00:00 -0700 https://sandiegocorefitness.com/3776074 JUSTINFASSIO FIT REP
    Boot Camp Fitness Part 1 https://sandiegocorefitness.com/3731889

    Boot Camp Fitness, Part 1

    by Georgette Pann
    Date Released : 10 Feb 2026

    In the first of a two-part series, I’ll explain the various elements that go into creating a boot camp fitness program and then walk you through the process of creating your own. At the end of this article, you’ll find [...]

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    Boot Camp Fitness, Part 1

    by Georgette Pann
    Date Released : 10 Feb 2026

    In the first of a two-part series, I’ll explain the various elements that go into creating a boot camp fitness program and then walk you through the process of creating your own. At the end of this article, you’ll find two sample battle plans you can use as examples.

    Types of Exercise

    There are five basic types of exercise, and you may include some or all of them in your boot camp program, depending on what you’re trying to achieve. Exercise categories include:

    • Resistance Training - Develops strength and power and endurance to a lesser degree. Examples: Push ups, pull ups, sit ups, body squats, any exercise using dumbbells, barbells or resistance bands and tubes.
    • Cardiovascular Training - Develops heart and lung efficiency and endurance. Examples: Running, biking, swimming, aerobics, Tae Bo, and any activity done at an elevated heart rate for an extended period of time.
    • Agility and Speed Training - Develops fast movement and precision reflexes. Examples: Sprints, running sideways or backwards, running tires and obstacle courses, shuffles, martial arts movements.
    • Plyometrics - Develops power in movement and resilience. Examples: Vertical jumps, long jumps, medicine ball exercises, hopping, skipping.
    • Stretching - Develops flexibility. Examples: Hurdler’s stretch, most yoga poses, toe touches.

    Fat Loss and Exercise Types

    Cardiovascular exercise does the most to burn fat during exercise. Cardiovascular exercise, like running, quickly depletes the energy stores that muscles prefer to use and forces them to burn fat for energy. Studies show that cardiovascular exercise burns the most fat when done at a moderate pace that increases heart rate but allows the trainee to hold a conversation. Fat burning due to cardiovascular exercise stops soon after heart rate and breathing rates return to normal.

    Resistance training burns little fat during the exercise compared to cardiovascular exercise, but it has a longer lasting fat burning effect on the body. An increase in metabolism from resistance training can last for hours, and resistance training increases muscle size and density, which causes the muscle to burn more calories every time it’s used. Muscle growth results in a more or less permanent increase in calorie consumption, which is essential to long term fat loss.

    Agility, speed and plyometric training can burn fat like cardiovascular exercise when it raises the heart rate high enough for an extended period. They can also spur muscle growth and its resulting calorie consumption, similar to resistance training but not as effectively. Stretching has little impact on fat loss, though when done with enough intensity, stretching can increase metabolism and overall calorie consumption.

    For a boot camp program that catches fat in the crossfire, emphasize resistance training and cardiovascular work.

    Equilibrium

    A major source of problems affecting the skeletal and muscular systems of the body is muscle imbalances. A muscle imbalance occurs when muscles on one side of a joint are significantly stronger or more developed than those on the opposite side. Avoid a program that promotes muscle imbalance by including resistance exercises for all of the following muscle groups:

    • Chest, shoulders and triceps - Push-ups, bench dips, bench press, military and over head presses
    • Upper back and biceps - Pull ups, rows, shrugs
    • Abdomen - Sit ups, crunches, leg raises
    • Lower Back - Good mornings, modified cat stretch, locust, cobra
    • Thighs - Squats, deadlifts, lunges, leg press
    • Hamstrings - Straight leg deadlifts, good mornings, lunges

    Compound vs. Isolation Exercises

    One of the things that separates boot camp fitness programs from typical gym programs is the emphasis on compound exercises. Where many fitness club programs with resistance training emphasize isolation exercises, which involve exercising the muscles for only one joint at a time, the efficiency required of boot camp programs demands the use of compound exercises that utilize multiple joints and muscle groups at a time. For example, the barbell curl is an isolation exercise that works the biceps, while the pull up is a compound exercise that works the biceps, lats in the upper back and the serratus. Nearly all of the exercises included in the next section are compound exercises.

    Cadence

    Cadence refers to the tempo or speed at which trainees perform repetitions. In the military, recruits do their push ups and other calisthenics to the same beat, usually dictated by the drill instructor. You may wish to do the same with your boot camp platoon, or you may want to let trainees do them at their own speed and tempo. If you are dictating the cadence, you can control the intensity of the exercise by speeding up or slowing down the cadence.

    Expect the Unexpected

    Another trait that sets boot camp programs apart from the typical fitness club program is the variety of exercises, intensity and schedule. Boot camp programs keep trainees on their toes with program changes from day to day and week to week. This variety prevents the body from getting accustomed to the workout, which cues an internal response to adapt to new conditions and better prepares the trainee to handle whatever life throws at him or her. Here are six ways to add variety to your program:

    1. Train different body parts on different days. This works best in a five-day-per-week program. For example, train upper body on Mondays, Wednesdays and Fridays and train lower body on Tuesdays and Thursdays.
    2. Train using bodyweight exercises on some days and weighted exercises on other days. This variation strategy works well with three-days-per-week programs. For example, train with bodyweight exercises on Monday and Friday and train with dumbbells or resistance bands on Wednesday.
    3. Schedule resistance training some days and cardio on other days. This really works well for five day programs because you can work resistance hard two or three days and rest in between those days by doing cardio instead.
    4. Do basic exercises such as push ups and pull ups some days and power exercises like power cleans and vertical jumps on other days.
    5. Vary the forms of exercises from day to day. For example, do standard pull ups one day and wide grip pull ups, narrow grip pull ups and commando pull ups on other days.
    6. Alternate light days and heavy days (i.e., work with high intensity on some days and low intensity on other days).

    Progression

    Most boot camp programs are geared for people who, previous to enlisting in your program, have not exercised much or at all. In those cases, you need to start the program at a level your recruits can handle. That doesn’t mean they won’t moan, groan, wail and cry trying to fulfill the program’s requirements. It just means you don’t want to over train or injure them so they can’t continue the program. Here are a few strategies for making sure new recruits can stick with it:

    • Start by asking trainees to only do 85 percent of their maximum reps on the first day and try to add a rep each session. So someone that can only do 10 push ups will do nine the first day, 10 the second and 11 the third day.
    • Set a low goal (10 reps) and require trainees to do as many as they can with strict form, like a standard push up on the toes, then allow them to switch to modified forms like push ups on the knees to finish the set. Do multiple sets within each session.
    • Set a high goal (25 or 30 reps) and let the trainees use any combination of advanced, standard or modified forms to achieve the goal. You may also want to allow up to three 15-second rests during the set.

    Because this is boot camp and not nursery school, you’ll want to progress fairly quickly to a more difficult program. Progression is essential to growth and development. The body adapts and stagnates in ability fairly quickly, so you have to continually challenge it to keep muscles growing and metabolism advancing. Here are six ways to add progression to your program:

    1. Add one rep to each exercise each session or five reps to each exercise each week.
    2. Increase the percentage of standard or strict form repetitions in a set. For example, if you’ve set a goal of 30 push ups and trainees on average do standard push ups for half of those, require them to increase that number to 17 or 20.
    3. Switch to more difficult versions of an exercise. For example, replace standard push ups with wide grip push ups or push ups with feet elevated. Or let them move from push ups with feet elevated to standard to modified push ups in order to complete the set.
    4. Use ladders and increase by one step each week. A description of ladders is later in this section.
    5. Reduce the length or frequency of rest periods between sets or exercises (i.e., if trainees are accustomed to two minute breaks between exercises, reduce them to one minute).
    6. Increase the cadence or decrease the amount of time trainees have to reach the goal.

    Intensity

    Intensity refers to how hard the trainee works to do the prescribed exercises. In the early weeks of your program, you’ll want to start with a relatively low intensity and progressively increase the average intensity each week. You’ll also want to vary the intensity within each daily session because most of your recruits will not be able to maintain anything but a low intensity workout for the duration of a workout session. By including some low intensity portions of the workout, you give trainees an opportunity to recover and prepare for more high intensity work.

    For five day programs, you’ll want to vary the intensity of workouts within the week. They need the challenge of some high intensity days, but if they’re all high intensity, trainees will over train and are more likely to incur injuries.

    You can increase the intensity of a workout in three ways:

    1. Use more difficult exercises or increase resistance (weight).
    2. Decrease the length or frequency of rest periods.
    3. Increasing the tempo or speed of repetitions (see Cadence above).

    Likewise, you can decrease the intensity of a workout in three ways:

    1. Use easier exercises or decrease resistance (weight).
    2. Increase the length or frequency of rest periods.
    3. Decreasing the tempo or speed of repetitions (see Cadence above).

    Exercise Order

    When deciding what order to schedule the exercises in a session, consider the following:

    1. Start with resistance exercises, which require more control and effort, and work toward cardiovascular exercise, which consumes energy too quickly to do before resistance work. If you include power exercises, plyometrics and speed and agility training, schedule them in that order between resistance and cardio exercises.
    2. Break periodically for stretching and allow trainees to catch their breath. If you use low rep sets, schedule rest/stretch periods after every three to five sets. If you use high rep sets, schedule short periods after every set.
    3. After a warm up, start with some low intensity exercise before you get into high intensity work. Alternate between high and low intensity periods and end with a low intensity period before the cool down at the end.

    Ladders

    Ladders are one way of breaking down high repetition sets to make them more manageable by beginning trainees. They are used extensively in military physical training programs. With ladders, trainees start by doing one rep, take a 15 second rest, do two reps and continue on in this fashion until half the set is done or the trainee cannot complete the mini set. Then they work back down the ladder doing one rep less than the last mini set until they reach zero. So a set of 25 reps would be broken down into the following mini-sets: 1-2-3-4-5-4-3-2-1 with 15-second rests in between.

    Circuits

    Circuit training is another way to break down large quantities of repetitions while keeping the intensity high. In a circuit, several exercises are scheduled in rapid succession with only a few reps of each. Trainees are allowed little to no rest between exercises, but they get a rest period after completing all the exercises in the circuit. Then trainees repeat the circuit a designated number of times.

    Here's an example of a circuit (to be repeated 3 times):

    • Pull-ups - 10 reps
    • Push-ups - 10 reps
    • Sit-ups - 10 reps
    • Bodyweight squats - 20 reps
    • Bench dips - 10 reps
    • Good Mornings - 10 reps
    • Two minute rest

    In Part 2 of this series, I will provide you with the boot camp planning and schedule forms and guide you through the step-by-step process of using these forms, as well as example boot camp workout programs for both the three-day and five-day fitness boot camp programs.

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    Sun, 17 Aug 2026 15:22:00 -0700 https://sandiegocorefitness.com/3731889 GeorgettePann FIT REP