Muscle News Daily May 07 2014, 0 Comments

Are biomechanical errors common in swimmers? 

If you're a coach or trainer that works with swimmers, you know how important it is to find out biomechanical errors. However, are they really all that common? A study in the journal Sports Health decided to take a look at some of these errors. The type of biomechanical errors they were looking at included the following. We look at the prevalence of an error and whether that error was related to others:
  • A dropped elbow during the pull-through phase (61.3%)
  • a dropped elbow during the recovery phase (53.2%)
  • A dropped elbow during the recovery phase was significantly associated with a thumb-first hand entry angle and incorrect hand entry position
  • An eyes-forward head-carrying angle was associated with an incorrect pull-through pattern
The results showed that some of the errors were quite common in Elite swimmers and that some of the errors can compound other type of errors if not checked. This provides an excellent example of continuously evaluating an athlete's biomechanics, even at the elite level. 

Are neuromuscular characteristics of the gastrocnemius muscle indicators of ACL injury risk?

There's been a few studies on the quads and hamstring muscle contraction characteristics and how it can be a risk factor for ACL injury. However, there hasn't been much on the Gastrocs. The question is, does it have any effects on ACL injury? The recent study in a knee journal evaluated the gastrocnemius through tensiomyography. I've added a link to a video in case you were wondering what a tensiomyography test is. 
They found no relation of the mechanical and contractile properties of the gastrocnemius muscle with being a risk factor for ACL injury in male soccer players. 

What risk factors should you be looking for in terms of hip / groin injuries for the field based athlete?

If you have clients or patients that are field based athletes, you know that hip and groin injuries are quite common. In fact, chronic hip, buttock and groin pain accounts for about 10% of all injuries seen in sports medicine centers. A new study in the British Journal of Sports Medicine looked at the risk factors that are associated with hip and groin injuries.

The study found that the most common risk factor from their review of the literature was a previous hip / groin injury, followed by older age and weak adductor muscles. These findings should help fitness and health professionals focus on adductor muscle imbalances and weakness in those that already have had a history of hip and groin pain. Should be interesting to see future studies that look into the best ways to prevent another hip and groin injury.