Upper body view of man and woman showing torso and chest muscles.

The Science

The LEAST expensive and MOST effective Personal Training in San Diego! We use TECHNOLOGY to SAVE YOU TIME and bring about the scientifically proven fastest results. 1

Muscle strength and muscle size play an underappreciated roll our immune system. The study referenced at (1) below demonstrated this.

Exercise of any type has well known benefits to the entire body, the mind, and of particular importance today, the immune system. But precise focused exercise has been shown to have the MOST benefits. (2)

Building even small amounts of muscle has been shown to be a MAJOR contributor to life extension, especially “quality of life” in our later years. If you are not building strength and muscle, even small amounts, you are moving NOT in the direction of health, but away from it.

Diet and long walks alone just do not cut it.

You don’t need to be a body builder to build muscle; you simply need to stress your muscles in a specific yet brief method to build muscle, strength, immunity, and aerobic ability.

Women do NOT need to worry about “bulking up” as that is quite difficult for most people anyway, but building basic muscle and strength can and will occur at ANY age if done in a scientific manner.

That’s worth repeating: you can build strength and muscle AT ANY AGE and it will benefit you in a multitude of ways.

Profile view of ARX machine.
At Leo’s Fitness Lab, you can do this in as little as 20 minutes twice a week.

Because we use the most advanced, computer controlled exercise equipment you will start your first session at the exact level that is right for YOU.  No overtraining, no unneeded stress and no injuries.  We can even work around injuries or limitations that you may already have. Don’t let a small pain stop you from working the rest of your body.

An example is a 80+ year old client who cannot walk on his own so he scooters to our facility.  We help him onto the machines and he is then able to get a full work out from a seated position, even though he could not walk here!  You can work around existing problems while exercising the rest of your body.

Without getting into a lot of “science” let’s just say that you will have the right work out for you, at that moment in time, every time. If you apply yourself, you should get the most benefit possible in just two 20-minute sessions per week!  The most benefit in the least time. Who wouldn’t want that?

The simple explanation is that our machines sense your current ability and give you the correct resistance based on your strength, adjusting with every second to tone and refine your musculature.  The machines also have a computer screen that shows you how much “work” you are doing so that you can track it and compete against yourself in the next session.  This equates to improvement, session after session, in the most direct and quantifiable manner.  

Building muscle has been shown to be THE predictor of longevity in several studies, one of which is quoted below. (3)

Again, we are not asking you to be a muscle builder but to simply build some muscle.  We all lose about 3-5% of our muscle every 10 years after the age of 30.  It’s not that it is harder to lose weight as we get older, but that we lose muscle which burns more calories than fat.  So body fat gain is oftentimes really muscle loss. Our training system builds strength, tones muscle, burns fat and gives serious cardiovascular benefit in 20 minutes twice a week.  

Even if it takes you 20 minutes to drive each way, you will still only have 60 minutes invested in a scientifically proven method with the maximum gains possible. 

I have said this over and over to friends, family and strangers, and I will repeat it here:

You won’t understand how effective this technology is until you try it!

An interesting side note is that 95+ percent of all diets fail, in the long run,  because dieting encourages a slower metabolism.  If you cut 500 calories out of your diet, you WILL lose weight but much of that weight will be muscle. Since muscle burns MORE calories than fat (even when we are NOT exercising) your body’s caloric needs go down after a diet.  When you return to normal eating, the weight ALWAYS returns.  Science has shown that to maintain your metabolism, you need to keep, or even better build a little muscle. (3)

There are few facilities on earth as complete as Leo’s Fitness Lab! Combine our state of the art technology with highly personalized training and tailored diets, and you’ve got the combination that will change your life.

A 20 minute visit will show you how you can get into shape, get back in shape or, no matter how “in shape” you are now, you will improve your shape, session by session EVERY TIME.

Text or call now to set up a 40-minute demonstration: 619-639-5748

  • Most people exercise because we want our bodies to change in some way.
  • The primary change we are looking for is usually heath related such as to lose weight, get stronger, build muscle, or get more aerobically fit.
  • The latest science has shown that traditional weight resistance training is extremely inefficient and that traditional aerobic activities take a lot of time, are very hard on your joints, and often cause the loss of lean muscle mass.
  • Lean muscle gives the body its shape, and it burns three to five times more calories a day per pound than fat does. We also lose between 3-5% of our muscle every 10 years once past 30.2
  • Science has proven that the absolute fastest way to build more muscle is to exercise a muscle to the point where you cannot lift the weight again.3 This is called muscle failure.
  • Muscles work in two directions, positive and negative. Positive is pushing the weight, as in doing a chest press. Negative is returning to the starting position. When doing resistance training, muscles do not reach full failure because they only require pushing in the positive direction. Gravity takes over in the negative direction, and the muscle is basically resting. So the muscle will go to failure in the positive direction only, but not in the negative direction.
  • Unlike every other method, our technology brings your muscles to failure in both the positive (up) and negative (down) directions, giving you scientifically proven maximum muscle-building benefits.4
Woman training with personal trainer at Leo’s Fitness Lab.
  • The large video display on the computer tracks your increase in strength each week. Our technology is so effective that you will be stronger after your first week. Guaranteed! It displays this week’s graph (red) versus last week’s (green). Your personal trainer is there to guide you and ensure your safety.
Example graph from the ARX machine showing clients past and current performance on the Bicep Curl.
  • The computer will never push harder than you can safely resist. If you stop pushing, the machine stops instantly, making it safe for anyone from age 10 to 100.
  • This short intense workout will also provide more aerobic benefits than several hours of normal aerobic training.5
  • Our strength training is personalized and several studies have shown that having a personal trainer can increase your results by a significant percentage.6
  • We offer a second technology that uses High Intensity Interval Training (HIIT).7 Its unique cooling technology and compression therapy give you more benefit in a single 20 minute session than several hours of traditional aerobic training.8
Woman working out on the Vasper machine.
  • Our third technology is a medical-grade body composition instrument that will precisely calculate your current percentage of muscle versus body fat. On a traditional diet, with or without exercise, most people lose a significant amount of lean muscle as well as some fat. This technology identifies increases in lean muscle, minimizes loss of lean muscle when dieting, and tracks fat loss.
BodPod machine.

The scientifically proven benefits of our methods in as little as one session a week:

  • Reduced body fat levels9
  • Increased strength5
  • Enhanced cardiovascular efficiency10
  • Lower cholesterol levels11
  • Reduced chance of injury12
  • Stronger immune system13
  • Complete metabolic health14
  • Increased bone density15
  • Reduced risk of Type II diabetes16
  • Reduced blood pressure17

Invest in yourself. There is no safer investment nor one that will give greater returns.

Your first ARX session will be about 40 minutes. One week later you will come in again for another ARX session for about 20 minutes, and you WILL be stronger/fitter. With each new week, the computer data will show your results and progression. You can also use the Vasper machine 2-4 times as a supplemental aerobic/recovery session. These take about 21 minutes each. 


CALL NOW: Phone Number,619-299-1694

E-mail: Email Address,getfit@leofitlabs.com

Address,1851 San Diego Avenue Suite 100A San Diego, CA 92110

  1. Willardson JM. The application of training to failure in periodized multiple set resistance exercise programs. J Strength Cond Res 2007; 21: 628-31. See also Rodney KJ, Herbert RD, Balnave RJ. Fatigue contributes to the strength training stimulus. Med Sci Sports Exerc 1994; 26: 1160-4.
  2. https://www.webmd.com/healthy-aging/guide/sarcopenia-with-aging#1This link will open in new window tab,
  3. Physiologists Carpinelli and Otto reviewed all of the known studies on the optimal number of sets performed for the purpose of increasing size and strength, and found that single sets produced optimal results in 33 studies out of the 35 they reviewed: Carpinelli RN, Otto RM. Strength training: single versus multiple sets. Sports Med 1998; 26: 73-84.
  4. Carpinelli R, Otto RM, Winett RA. A critical analysis of the ACSM position stand on resistance training: insufficient evidence to support recommended training protocols. J Exerc Physiol 2004; 7: 1-60.; See also Smith D, Bruce-Low S. Strength training and the work of Arthur Jones. J Exerc Physiol 2004; 7: 52-68, and Newham, D. J., Jones, D. A., and Clarkson, P. M. Repeated high-force eccentric exercise: effects on muscle pain and damage. Journal of Applied Physiology 1987; 63(4): 1381-1386
  5. Messier, S.P., Dill, M.E., “Alterations in strength and maximum oxy- gen consumption consequent to nautilus circuit weight training.” Res Q Exerc Sport 56 (1985) 345
  6. A. The Globe and Mail article cited a famous study that was conducted at Ball State University in Indiana, researchers put two groups of 10 men through identical 12-week strength-training programs. At the end of the experiment, one group had gained 32 per cent more upper-body strength and 47 per cent more lower-body strength than the other.  The only difference was that the more successful group had a personal trainer. https://www.theglobeandmail.com/life/health-and-fitness/fitness/will-i-get-a-better-workout-if-i-hire-a-personal-trainer/article4268225/ B. Researchers at the University of Brasilia in Brazil compared two groups of 100 volunteers who undertook a 12-week strength-training program, supervised either by one trainer for every five athletes, or one trainer for every 25 athletes. The results, which were published in the Journal of Strength and Conditioning. The highly supervised group improved their bench press by 16 per cent, while the less supervised group chose lighter weights and improved by only 10 per cent.
  7. Burgomaster, S. C. Hughes, G. J. F. Heigenhauser, S. N. Bradwell, and M. J. Gibala, “Six Sessions of Sprint Interval Training Increases Muscle Oxidative Potential and Cycle Endurance Capacity in Humans,” Journal of Applied Physiology 98, no. 6 (June 1, 2005): 1985-90.
  8. Coyle, “Very Intense Exercise-Training Is Extremely Potent and Time Efficient: A Reminder,” ibid., 1983-84.
  9. Hurley BF, Roth SM. Strength training in the elderly: effects on risk factors for age-related diseases. Sports Med. 2000 Oct;30(4):249-68. Review. PubMed PMID: 11048773. See also Devries, M. C., Breen, L., Von Allmen, M., MacDonald, M. J., Moore, D. R., Offord, E. A., … Phillips, S. M. (2015). Low-load resistance training during step-reduction attenuates declines in muscle mass and strength and enhances anabolic sensitivity in older men. Physiological Reports, 3(8), e12493.
  10. Burt J, Wilson R, Willardson JM. A comparison of once versus twice per week training on leg press strength in women.J Sports Med Phys Fitness. 2007 Mar;47(1)
  11. https://www.ncbi.nlm.nih.gov/pubmed/3824017
  12. https://www.ncbi.nlm.nih.gov/pubmed/3633121
  13. https://www.couriermail.com.au/news/queensland/queensland-study-shows-resistance-exercises-can-boost-immunity/news-story/59db6b746b3ac0a6dd90fdb0a7d52bbc
  14. Campbell, W., Crim, M., Young, C., et al. “Increased energy require- ments and changes in body composition with resistance training in older adults.” Am J Clin Nutr 60 (1994)167–75. See also Hurley, B., “Does strength training improve health status?” Strength Cond J 16 (1994) 7–13. See also Stone, M., Blessing, D., Byrd, R., et al. “Physiological effects of a short term resistive training program on middle-aged untrained men.” Nat Strength Cond Assoc J 4 (1982) 16–20 and Hurley, B., Hagberg, J., Goldberg A., et al. “Resistance training can reduce coronary risk factors without altering VO2 max or percent body fat.” Med Sci Sports Exerc 20 (1988) 150–4
  15. Menkes A., Mazel S., Redmond A., et al., “Strength training increases regional bone mineral density and bone remodelling in middle-aged and older men.” J Appl Physiol 74 (1993) 2478–84.
  16. Baldi JC, Snowling N: Resistance training improves glycaemic control in obese type 2 diabetic men. Int J Sports Med24:419–423, 2003
  17. Colliander E.B. Tesch, P.A., “Blood pressure in resistance trained ath- letes.” Can J Appl Sport Sci 13 (1988) 31–4