Our philosophy is to combine the world of research and the field in order to bring about a most successful solution. We care about details and want to make its use as transparent and efficient as possible. Many measurement tools exist but few offer an all-in-one solution.
At Human Kinematic, we not only offer a measurement tool, but we have integrated part of the solution to the problems diagnosed. This is a major advantage for professionals in the field, because very often once a problem has been detected, it must be treated. Faced with a wide choice of possible interventions (exercises), it is easy to get lost and spend a lot of time performing exercises that overlook the problem. We have made the choice to orient an intervention response, which targets the problem in a major way and optimizes the ratio of time spent and the effectiveness of the intervention. When professionals have a prevention niche with athletes, their intervention must guarantee the fastest effects in order to be effective. Hamtech responds to this characteristic by offering innovative exercises based on the latest advances in sports science research.
The other distinction our technology makes is what we do with the recorded data. Our expertise is focused on the analysis and processing of data in order to talk about what is behind these raw metrics. Imagine reports that standardize the results allowing comparison between athletes, really discriminating prevention indicators. Our research allows us to propose new protocol. After spending 7 years in the development of its Hamtech product, Human Kinematic devotes all its energy to the power of data analysis for ever greater performance.
Our innovation does not stop at the hardware part; it also involves intelligence in the exploitation of data. We are committed to changing the standards in the field of sport.
Background: In the bilateral Nordic hamstring exercise (NHE), hamstrings operate at relatively short lengths, which may limit this exercise’s efficacy in hamstring injury prevention. Objectives: To examine knee flexion torque, and biceps femoris long head (BFlh) and semitendinosus (ST) high-density electromyography (HD-EMG) activity during unilateral and bilateral NHE performed with either neutral (NHE0) or 90° flexed (NHE90) hips. Methods: Exercises were performed on a novel device at eccentric 1-repetition maximum load defined for 90-15° knee range of motion. Torque and EMG signals normalised to maximal voluntary isometric activity were compared in different phases of the exercises with Statistical Parametric Mapping. Results: Lower EMG levels were observed in NHE90 than in NHE0, mainly in the second half of the movement. Knee flexor eccentric torque was higher in NHE90 than in NHE0 from the beginning until 87% of the bilateral movement, and over the entire unilateral movement. In NHE0, ST activity was higher compared to BFlh during the initial movement phase, but lower close to knee extension. Torque and EMG activity were generally similar in the bilateral and unilateral modes. Conclusion: If performed with neutral hips, NHE selectively activates BFlh near full knee extension. Performing NHE with hips flexed to 90° is preferable when higher passive torque and ST selectivity are targeted at a longer muscle length. Performing these exercises unilaterally could help to train each limb separately with a similar torque and EMG output to the bilateral conditions. Adaptations to these exercises should be examined.