Quadriceps activation failure . Failure of the upper leg muscles (musculus quadriceps femoris). By this we mean the inability to consciously tighten and relax the quadriceps. This leads to not being able (or not enough) to actively engage your knee and...
Running & Ground Contact Time. During running, ground contact is of great influence. Ground contact leads to a landing moment as well as a new push off during running. If you want to run faster or more efficiently, it is wise to watch your...
Modern & Measurable Results Training with Keiser. Keiser's fitness machines are different from standard strength equipment. You may be used to the machines with piles of weights that you can set with a pin. Keiser in contrast works on...
Stretch limitation after knee surgery. We often see a limitation in the extension of the knee after knee surgery. We can distinguish two reasons by which we can explain why a knee may be unable to stretch after injury or surgery. The least...
Piriformis syndrome. Piriformis syndrome occurs in athletes in the hip-bill region (6:1, more often in women than men in the 30-40 age range). The injury is manifested by a dull pain in the upper, deep area in the gluteal muscle. The musculus...
Foosh stands for "fall onto outstretched hand. It is a trauma of hand/wrist where you thus fall on an outstretched hand. Foosh trauma is linked to winter sports because we regularly see this type of trauma occur among the population of winter sports enthusiasts. A...
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