Improve your Recovery & Performance with Palm Cooling
Rapid performance gains with CoreTx Palm Cooling
Success in the palms of your hands
The CoreTx GO is the latest innovation from CET whose clients include elite sport teams such as AC Milan, Bayern Munich, Manchester United, Arsenal FC, Brooklyn Nets and Toronto Blue Jays.
Enhance your performance with the revolutionary new lightweight, portable CoreTx GO palm cooling fitness device.
Cooling both palms between sets with the CoreTx GO delivered a 117% increase in parallel dip performance in only 6 sessions. See graph of Trial 1.
Further trials by a number of participants across a range of exercises yielded similarly impressive results:
- Trial 2, Pull Ups – 91% improvement in 4 sessions
- Trial 3, Push Ups – 70% improvement in 3 sessions
- Trial 4, Bench Press – 113% improvement in 6 sessions
- Trial 5, Bicep Curls – 50% improvement in 4 sessions
Cooling the glabrous, non-hairy, skin on the palm of the hand delays fatigue so you can break through to the next level, boosting your performance.
Stanford University research has shown how palm cooling uses your body’s natural ability to enhance work capacity and recovery while improving your mental focus too.
Strength & Conditioning Research
Much of the initial research into the efficacy of palm cooling for strength, conditioning and performance enhancement was carried out at Stanford University by Dr Craig Heller and Dr Dennis Grahn.
Professor Heller and Dr Grahn have decades of experience in researching mammalian temperature regulation and working in conjunction with the US Military Defense Advanced Research Project Agency (DARPA) they developed the Stanford Glove, the first commercial palm cooling device.
A substantial body of peer-reviewed fitness and conditioning research was published by Stanford University and others over a decade.
How Palm Cooling helps Conditioning
Abstracts
Palm cooling and heating delays fatigue during resistance exercise in women.
Kwon, YS, Robergs, RA, Mermier, CM, Schneider, SM, and Gurney, AB. Journal of Strength & Conditioning Research 2015.
In this study, we hypothesized that palm cooling (PC) or heating during rest intervals between high-intensity weight training sets will increase total repetitions and exercise volume load (kilograms) in resistance trained female subjects.
METHOD: Eight female subjects (mean ± SD, age = 25 ± 6 years, height = 160 ± 6 cm, body mass = 56 ± 7 kg, 1-repetition maximum [1RM] = 52 ± 6 kg, weight training experience = 6 ± 2 years) completed 4 sets of 85% 1RM bench press exercise to failure, with 3-minute rest intervals. Exercise trials were performed in a counterbalanced order on 3 days, separated by at least 3 days in TN, Palm heating (PH), and PC conditions. Heating and cooling were applied by placing both hands in a hand cooling device with the hand plate set to 45° C for heating and 10° C for cooling. Data were analyzed using a 2-factor repeated-measures analysis of variance and Tukey’s post hoc tests.
RESULTS: Palm cooling repetitions were significantly higher than TN repetitions during the second set, and PH repetitions were significantly higher than those of TN during the fourth set. Total exercise volume load (kilograms) for both PC (1,387 ± 358) and PH (1,349 ± 267) were significantly higher than TN (1,187 ± 262).
CONCLUSION: In women, both heating and cooling of the palms between sets of resistance exercise increased the total exercise volume load performed. This ergogenic response to a peripheral sensory input is consistent with the central governor theory of muscular fatigue.
Work volume & strength training responses to resistive exercise improve with periodic heat extraction from the palm.
Local cooling can induce an ergogenic effect during a short-term intense exercise. One proposed method of personal cooling involves heat extraction from the palm.
Recovery Research
It has been well documented that elevated heat storage and dehydration would reduce both aerobic and repeated, intermittent sprint performance. The heat strain from the environment along with the high metabolic heat production of soccer activities can pose great challenges to players’ health, performance and consequently, match results. Finding a simple yet effective cooling strategy is difficult, especially for administration in team sports such as soccer.
Forearm and hand cold water immersion is easy to perform and provides proven physiological benefits for hyperthermic individuals. Alternatively, neck cooling could be another ideal choice for field application since it is quick and convenient for mass distribution to multiple players.
To date, neither of these methods have been evaluated in a soccer match setting. Therefore, this study assessed the efficacy of two active coolings (forearm and hand cooling, and neck cooling) on thermoregulatory responses and soccer-specific exercise performance after a simulated 45-min soccer running in the heat. We hypothesized that active coolings during a simulated 15-min half-time recovery could attenuate heat strain and enhance subsequent soccer-specific performance tests.
How Palm Cooling supports Half Time Recovery
Abstracts
Effect of Half Time Cooling on Thermoregulatory Responses and Soccer-Specific Performance Tests. Yang Zhang, Svetlana Nepocatych, Charlie P. Katica, Annie B. Collins, Catalina Casaru, and Gytis Balilionis et al The University of Alabama; Jesper Sjökvist, The Swedish Olympic Committee 2014.” This study examined two active coolings (forearm and hand cooling, and neck cooling) during a simulated half-time recovery on thermoregulatory responses and subsequent soccer-specific exercise performance.
METHOD: Following a 45-min treadmill run in the heat, participants (N=7) undertook 15-min recovery with either passive cooling, forearm and hand cooling, or neck cooling in a simulated cooled locker room environment. After the recovery, participants performed a 6×15-m sprint test and Yo-Yo Intermittent Recovery Level 1 test (YYIR1) in a temperate environment.
RESULTS: During the 15-min recovery, rectal temperature fell significantly (p<0.05). Neither active coolings induced further reduction in rectal temperature compared to passive cooling. No effect of active coolings was found in repeated sprint test. However, neck cooling reduced (p<0.05) the thermal sensation (TS) compared to passive cooling during the 15-min recovery. Active coolings attenuated (p<0.05) the sweat rate compared to passive cooling: 1.2±0.3 l•h-1 vs. 0.8±0.1 l•h-1 vs. 0.8±0.3 l•h-1, for passive cooling, forearm and hand cooling, and neck cooling, respectively. For passive cooling, elevated sweat rate resulted in higher (p<0.05) dehydration (2.1±0.3%) compared to neck cooling (1.5±0.3%) and forearm and hand cooling (1.4±0.3%). YYIR1 was improved (p<0.05) following forearm and hand cooling (869±320 m) and neck cooling (814±328 m) compared to passive cooling (654±311 m). Neck cooling (4.6±0.6) reduced (p=0.03) the session TS compared to passive cooling (5.3±0.5).
CONCLUSION: The present study has demonstrated the practical field benefits (i.e., Yo-Yo Intermittent Recovery 1 test, sweating response) of forearm and hand cooling and neck cooling in delaying the development of dehydration, providing thermal comfort, and improving high- intensity sport performance under exercise-heat stress. For sports such as soccer, tennis, rugby, baseball, and American football that have breaks active coolings before warm-up and during any breaks could aid recovery from heat strain and help in delaying fatigue and enhance subsequent sport performance. Taken together, the current simple effective active coolings are recommended for large field implementation in team sports during hot conditions. These results suggest that active coolings effectively improved comfort and sweating response, which delayed exercise-heat induced performance diminish during a second bout of exercise.