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There are now enough fitness trackers on the market to call it an industry, but there are still innovations to be made. While we’ve previously written about Sensoria — the smart sock that both monitors jogging sessions and also detects injuries — Check is another new device that determines users’ readiness for training, both physically and mentally, through a short daily test.

Developed by Finland-based FAM Sports, the device sits on top of the palm and can be connected to the athlete’s smartphone or tablet. During the test, a disposable electrode is attached to the wrist and a clip is placed onto the thumb. The test uses peripheral muscle reflexes to determine users’ physiological and neurological state, sending a small current through the muscles and measuring how they react. If the athlete hasn’t fully recovered from yesterday’s activities, their reflexes won’t be as sharp. The app also gives users a questionnaire on how exhausted they feel and how much exercise they’ve done in the past 24 hours before offering a ‘Training Readiness’ score out of 100. A high score will encourage them to ‘Keep Going’, while a lower one will suggest that they give today a rest. The video below explains more about the product:

Check retails for EUR 199 and users can top up on electrode strips from EUR 16.95 for a pack of 30. Are there other aspects of exercise that could be tracked, aside from performance?