We make a performance enhancing device, PED.
With the goal of enhancing strength and recovery between sets or on rest periods. By using and improving the use of cold with our recovery sleeves. Attempting to use cold as efficiently and practically as possible.
To accomplish this efficiency and practicality, we take a unique approach that may surprise you. Check out these 8 scientific concepts on why we make and use our All Natural PED recovery sleeves the way we do.
1 – How to use cold for your workout recovery
Early research investigated the impact of cold on your muscles and found that if you apply it for too long, you will make your muscles too cold which will hurt your performance.
Not surprisingly a cold muscle loses the ability to contract and loses overall strength when it gets to cold. Thus to maximize the performance enhancing effects of cold, you want to keep you want to limit your cold application to roughly 3 minutes and you want to apply it between exercise sets. [1, 2]
This short duration use allows for the altering of pain signals, feel good perceptual association while also providing a slight cooling effect. Additionally, you will avoid the negative of impact of applying cold for too long. As directly applying cold over a muscle for 3 minutes will not decrease deep muscle temperature.
2 – The effectiveness of cooling via your palms and soles
Our recovery sleeves mainly cool via the the palms of your hands and the soles of your feet because of their effectiveness. [3-5]
Because you give off the majority of your heat at your extremities. The palms and soles contain an abundance of additional capillaries that you use to remove heat from your body.
Specifically targeting and manipulating these areas can lead to an increased efficiency in removing heat from the body. Which can help enhance your performance and recovery.
3 – The importance of altering your pain sensations
Altering your pain sensation. One of the main benefits of using short term cold exposure during your workouts.
Because by manipulating your sensitivity to pain, you can trick your body into doing more than normal. A strength hack that blunts the sensation of pain in your arms and legs while they give feedback to your brain. This allows for enhanced work volume gains that you would not normally experience and leads to improved strength endurance.
You can alter pain transmission through cooling, heating, vibration and rubbing.  Which allow for an increased pain threshold and this delay alters fatigue.
4 – The belief effect and making you feel good
While we strive to make a device that improves physiological recovery. The impact of perceptual recovery might reign supreme.
Because the use of the mind in enhancing your performance and recovery remains and underutilized, but incredibly important tool. We attempt to use the belief effect. And we want to create a feel good positive association when using our product. This positive experience will lead to gains in performance and recovery.
The use of a cold recovery modality between exercise sets provides relief. While the negative pressure provides a noticeable pressure on your arms and legs. These perceptual cues when combined with their physiological changes will lead to enhanced recovery and performance because of the belief effect its positive associations that you now know about.
5 – Manipulating your blood flow to enhance cooling
With our negative pressure generator, in the form of a squeeze pump and suction valve. We want to pull your blood towards the palms and soles so we can cool it.
Because when applying cold to the palms and soles, we want to enhance your ability to remove heat by preventing the constricting of blood vessels that typically occurs when applying temperatures between 45-65 degrees °F.
Keeping these blood vessels open ensures an enhanced removal of heat. By bringing more capillaries to the surface and enhancing heat transfer during your cold session.
6 – Locally increasing your carbon dioxide to improve cooling
Our recovery sleeves locally increase carbon dioxide levels while you apply cooling.
Because carbon dioxide acts as the most powerful heat transferring agent in our bodies. This improves the transfer of heat from deep with in our body and muscles to the skin’s surface for removal from the body.
Additionally, carbon dioxide plays a key role in delivering oxygen to your muscles. Drowning your muscles with oxygen sounds like a great idea to enhance recovery and performance, but you need carbon dioxide to bind the oxygen molecules to the muscular cells. Increases in oxygen go to waste without carbon dioxide.
Thus increasing carbon dioxide levels to remove heat and increase oxygen delivery to your muscles becomes a primary goal in enhancing performance and recovery.
7-Localized cooling verse direct muscle cooling
A simple concept. Base your recovery modality on the type of exercise you will perform.
Because you want to maximize your cold recovery while also altering your pain thresholds. Leg exercises should focus their recovery through the soles. While upper body exercise recovery should take place via the palms. 
Meanwhile, direct muscle cooling also sounds good in theory. However, applying a cold source to the outer muscles tends to cool the surface of the muscles, but seems unable to penetrate deep inside the muscles to provide enough benefit.
If however, you were to use a cold water immersion technique, you would adequately cool the whole muscle. However, this may appear to over cool the muscles leading to decreased force and performance. While the practicality of using cold water immersion techniques during your workouts remains difficult.
Additionally, we could in the future add surface cooling directly over the muscles to our current product, but the extra supplies required and cost of applying direct muscle cooling when combined with lack of scientific support currently acts as a major deterrent.
8 – Improving cooling with heat
We use heat to open or re-open the blood vessels in your palms and soles. You do this by applying heat periodically in between your cold sessions. Which will help stimulate blood flow to the palms and soles.
Because heat will prevent the constricting of blood vessels after applying cold to the target area. Or it will re-open constricted blood vessels and allow future cold sessions to actually work in removing heat. If you experience closed blood vessels you will shunt blood from the palms and soles and your cold session will prove ineffective in removing heat. Therefore, you apply heat to the off-hand not using the cold therapy.
The additional benefit, heat will increase blood flow to the palms and soles. Which will get the palms and soles ready for your next cold session exposure.
While the use of heat may prove beneficial. You want to use it strategically. The restriction of blood flow to the extremities may begin as early as 86°F (30°C) when at normal body temperature, 98.6°F (37°C).  Therefore focus on using heat early in sets, on isolation exercises and in cooler environments that suppress body temperature.
Meanwhile, the risk of restricting blood flow to the extremities significantly decreases with an elevated body temperature, 99.5°F (37.5°C).  Therefore, you should wait to apply cold until after your first set. As exposure to 50°F (10°C) causes very little restriction of blood flow with an increased body temperature. Making cooling more effective after a raised body temperature. [10, 11]
The end result – We invented our All Natural PED recovery sleeves
We make intermittent negative pressure compression sleeves. These sleeves turn into static compression when used in sweaty conditions.
We use these negative pressure sleeves with reusable cold packs and fifty cent, double use heat packs. This aids heat transfer through the palms of your hands and soles of your feet. As we attempt to use cold and heat as conveniently and practically as possible.
We strive to increase your strength endurance by helping you recover between your sets or on your rest intervals. Allowing you to increase your volume of work by improving your strength recovery.
The means to accelerate strength recovery occurs through increasing heat transfer, altering your pain threshold and utilizing the belief effect. This recovery concoction, our All Natural PED recovery sleeves, an example of how the whole is greater than the sum of its parts.
Disclosures: If you came to this site from another website, ezine or publisher. Please note that they may have received compensation in the form of content, product trials or affiliate offers in return for directing traffic to this website.
1-Kwon, YS; Robergs, RA; and Schneider, SM. “Effect of Local on Short-Term, Intense Exercise.” J Strength Cond Res 27(7): 2046–2054, 2013. Abstract: https://www.ncbi.nlm.nih.gov/pubmed/23085975 | Full text: https://www.researchgate.net/publication/232532836_Effect_of_Local_Cooling_on_Short-Term_Intense_Exercise
2-Verducci, F.M. “Interval Cryotherapy Decreases Fatigue During Repeated Weight Lifting.” Journal of Athletic Training. National Athletic Trainers’ Association, Inc. 2000;35(4):422-426. Abstract: https://www.ncbi.nlm.nih.gov/pubmed/16558656 | Full text: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1323368/
3-Cotter, James D.; Taylor, Nigel A. S. “The distribution of cutaneous sudomotor and alliesthesial thermosensitivity in mildly heat-stressed humans: an open-loop approach.” J Physiol 565.1 (2005) pp 335–345. Abstract: http://www.ncbi.nlm.nih.gov/pubmed/15760945 | Full text: https://www.researchgate.net/publication/7973410_The_distribution_of_cutaneous_sudomotor_and_alliesthesial_thermosensitivity_in_mildly_heat-stressed_humans_An_open-loop_approach
4-House, J.R. & Tipton, M.J. “Heat strain is reduced at different rates with hand, foot, forearm or lower leg cooling.” Elsevier B.V. Elsevier Ergonomics Book Series. Volume 3, 2005, Pages 91–95. Abstract: http://www.sciencedirect.com/science/article/pii/S1572347X05800163
5-Taylor, N. A.S.., Machado-Moreira, C., van den Heuvel, A., Caldwell, J., Taylor, E. A.. & Tipton, M. J.. “The roles of hands and feet in temperature regulation in hot and cold environments.” Thirteenth International Conference on Environmental Ergonomics; Boston, USA: University of Wollongong; 2009. 405-409. Abstract and Full Text: http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1201&context=hbspapers
6-Kwon, YS; Robergs, RA.; Kravitz, LR; Gurney, BA.; Mermier, CM.; Schneider, SM. “Effect of Palm Temperature on Fatigue During High Intensity Bench Press Exercise.” Med Sci Sports Exerc. 2010 Aug;42(8):1557-65. Abstract: https://www.ncbi.nlm.nih.gov/pubmed/20139781 | Full text: http://digitalrepository.unm.edu/cgi/viewcontent.cgi?article=1023&context=educ_hess_etds
7-Kwon YS, Robergs RA, Kravitz LR, Gurney BA, Mermier CM, Schneider SM. “Palm cooling delays fatigue during high-intensity bench press exercise.” Med Sci Sports Exerc. 2010 Aug;42(8):1557-65. Abstract: http://www.ncbi.nlm.nih.gov/pubmed/20139781 | Full text: https://www.researchgate.net/publication/41414289_Palm_Cooling_Delays_Fatigue_during_High-Intensity_Bench_Press_Exercise
8-Khomenok, Gennadi A.; Hadid, Amir; Preiss-Bloom, Orahn; Yanovich, Ran; Erlich, Tomer; Ron-Tal, Osnat; Peled, Amir; Epstein, Yoram; and Moran, Daniel S. “Hand immersion in cold water alleviating physiological strain and increasing tolerance to uncompensable heat stress.” Eur J Appl Physiol (2008) 104:303–309. Abstract: http://www.ncbi.nlm.nih.gov/pubmed/18478254
9-House, J.R.; Lunt, H.; Magness, A. and Lyons, J. “Testing the Effectiveness of Techniques For Reducing Heat Strain In Royal Navy Nuclear, Biological And Chemical Cleansing Stations’ Teams.” J Royal Naval Medical Service 2003, 89.1 27-34. Abstract: http://www.ncbi.nlm.nih.gov/pubmed/14655424 | Full text: https://www.researchgate.net/publication/8977145_Testing_the_effectiveness_of_techniques_for_reducing_heat_strain_in_Royal_Navy_nuclear_biological_and_chemical_cleansing_stations’_teams
10-Goosey-Tolfrey, Victoria; Swainson, Michelle; Boyd, Craig; Atkinson, Greg; Tolfrey, Keith. “The effectiveness of hand cooling at reducing exercise-induced hyperthermia and improving distance-race performance in wheelchair and able-bodied athletes.” J Appl Physiol 105: 37–43, 2008. Abstract: http://www.ncbi.nlm.nih.gov/pubmed/18436695 | Full text: https://www.researchgate.net/publication/5415598_The_effectiveness_of_hand_cooling_at_reducing_exercise-induced_hyperthermia_and_improving_distance-race_performance_in_wheelchair_and_able-bodied_athletes
11-Long, M. (2011) The effect of hand cooling on intermittent exercise performance whilst wearing a bomb disposal suit. Unpublished MSC by Research Thesis. Coventry: Coventry University. Abstract: https://curve.coventry.ac.uk/open/items/cf86f48c-291d-4b1f-ad1d-e5ed12e573dd/1/