Since the founding of PolarCool AB, a key focus has been to conduct and support studies evaluating the clinical effects of the PolarCap® System in relation to concussion and sub-concussive repetitive blows to the head.

In 2016, a study was initiated by Lund University in collaboration with the Swedish Hockey League (SHL) and HockeyAllsvenskan. After three seasons, where a total of 15 Swedish professional ice hockey teams participated, the result showed significant positive effects for treated players (intervention group) in terms of shortened recovery time in comparison to the control group. The results also showed a drastic reduction of the proportion of players with long-term absence in the intervention group. The study has been published by Future Medicine in the journal Concussion.

The positive results of the clinical study were then the basis for the SHL, to implement a new standard that from the start of the 2019/2020 season two PolarCap® Systems should be available at all games (one for the home- and away team).


In addition, the statistical medical outcome is an important factor, considering that teams using the PolarCap® System will with a high probability, greatly reduce the total number of days that players are absent due to concussion. Among the health benefits for the athlete, this also leads to sport specific and financial benefits for teams.