CrossFit Athlete’s Experience with ISOPHIT


ISOPHIT™ is the most versatile isometric strength training system ever developed. The system is designed specifically for health, fitness, rehabilitation, and sports performance professionals and organizations that work with people who want to look, feel, and function better. Regardless of the performance goal, it all starts here.


  • Most people unknowingly have a certain amount of muscular imbalance or joint instability in their body caused by any number of reasons (age, daily activities, injuries, occupation, etc) and have never been taught how to identify or address these areas of dysfunction.
  • Individuals who engage in dynamic exercise or sports competition without correcting these imbalances accelerate the rate of degenerative joint dysfunction, increase muscle and joint pain, impair their athletic performance, and put themselves at greater risk of serious injury.


Simply put, ISOPHIT™ is the safest, most efficient and effective way to improve strength, stability, and mobility and will help you look, feel, and function better.


ISOPHIT™ amplifies the scientifically proven benefits of isometric exercise to accelerate fat loss, and enhance muscle tone faster and more effectively than with dynamic exercise and is a better way to get you looking your best for the beach, boardroom, and bedroom.

Isometric exercise is unique in its ability to rapidly increase muscle strength and tone muscle faster than that seen for dynamic exercise.(1) 

The metabolic changes resulting from a 30 (second) isometric contraction of the quadriceps are similar to those of a 30 (second) maximal sprint.(2)

Women preferentially increase fat oxidation during low-level isometric exercise.(3)


The ISOPHIT™ dramatically improves muscular strength and joint stability which has been shown to reduce muscle and joint pain. Its versatility makes ISOPHIT™ equally accessible for people of any age or ability, and the increase in stability helps them move, lift, and play with more control and confidence.

Besides blood pressure, isometric exercise is associated with other beneficial effects consisting of an increase in muscle bulk, upper and lower body strength, increases in bone density, and a decrease in bone fractures.(4)

A single resistance training bout of isometric contractions reduced tendon pain immediately for at least 45 min post-intervention and increased Maximum Voluntary Isometric Contraction by 18.7%.(5)

Isometric stabilization exercises reduce pain and enhance vitality as dimensions of Health Related Quality of Life among women with chronic low back pain with such effects lasting for at least nine months.(6)


ISOPHIT™ accelerates recovery, reduces the risk of injuries, and optimizes physical performance. Regardless of your objectives, ISOPHIT™ will enable you to enhance your quality of life, set new personal records, and gain the competitive advantage both on and off the field.

Isometric resistance training lowers Systolic Blood Pressure, Diastolic Blood Pressure, and mean arterial pressure. The magnitude of effect is larger than that previously reported in dynamic aerobic or resistance training.(7)

A retrospective analysis of professional rugby union players revealed that isometric training reduced match-related cervical spine injuries and a prospective study found that greater overall isometric neck strength reduced concussion risk in high school athletes.(8)

Isometric strength training as used in the present study can cause increased recruitment of the available motor unit pool, improved efficiency at submaximal loads, and surprisingly also enhancement of the oxidative metabolism in the muscle.(9)

Supporting Research:

  • 1. Petrofsky, Jerrold, et al. “Muscle strength training and weight loss from a combined isometric exercise and dietary program.” Journal of Applied Research 7.1 (2007): 77-86.
  • 2. Newham, D. J., et al. “The metabolic costs of different types of contractile activity of the human adductor pollicis muscle.” The Journal of Physiology 488.Pt 3 (1995): 815.
  • 3. Sarafian, Delphine, et al. “Sex difference in substrate oxidation during low-intensity isometric exercise in young adults.” Applied Physiology, Nutrition, and Metabolism 41.9 (2016): 977-984.
  • 4. Chrysant, Steven G. “Current evidence on the hemodynamic and blood pressure effects of isometric exercise in normotensive and hypertensive persons.” The Journal of Clinical Hypertension 12.9 (2010): 721-726.
  • 5. Rio E, Kidgell D, Purdam C, et al Isometric exercise induces analgesia and reduces inhibition in patellar tendinopathy Br J Sports Med 2015; 49:1277-1283.
  • 6. Moussouli, Maria, et al. “Effects of Stabilization Exercises on Health-Related Quality of Life in Women With Chronic Low Back Pain.” Journal of Physical Activity and Health 11.7 (2014): 1295-1303.
  • 7. Isometric Exercise Training for Blood Pressure Management: A Systematic Review and Meta-analysis. Carlson, Debra J. et al. Mayo Clinic Proceedings , Volume 89 , Issue 3 , 327 – 334
  • 8. Hrysomallis, Con. “Neck Muscular Strength, Training, Performance and Sport Injury Risk: A Review.” Sports Medicine 46.8 (2016): 1111-1124.
  • 9. Komi, P. V., et al. “Effect of isometric strength training on mechanical, electrical, and metabolic aspects of muscle function.” European journal of applied physiology and occupational physiology 40.1 (1978): 45-55.