Consider our earlier wrist rotation exercise: The wrist internally rotates and generates torque on the radius. That torque is valuable; it would be a waste to just let it pass through the bones of the arm like water down a drain. What we need to do is resist that internal rotation so we can store it and put it to use.
In the context of a pushup, your body does this by partnering up two functions: external rotation of the humerus and upward rotation of the shoulder blade, or scapula. These actions are managed by an army of interconnected tissues that are bigger, stronger and more capable of supporting your body weight than your arms, acting by themselves, could ever possibly be.
However, if either the wrist or the shoulder fail to hold up their end of the bargain, the muscle tissue around the elbow has to spend energy to maintain stability, rather than storing energy provided by the surrounding joints.When it works, it's a thing of beauty: The wrist drives internal rotation of the radius through gravity's acceleration. The humerus resists that rotation, storing energy in the rotator cuff, serratus anterior and oblique abdominals. The elbow becomes tightly coiled, fully extended and rock solid. And it doesn't even remotely stop there: remember, this is happening in both arms at the same time. The oblique abdominals, behemoths that they are, carry the force from their respective shoulder blades all the way down to the hip, stabilizing the low back in the process: what starts humbly in the wrist and elbow eventually rules the spinal column. In other contexts, too, like throwing, lifting and martial arts, that elbow coil acts like a force multiplier when it eventually uncoils, rapidly releasing its stored energy like a hammer drill. (If that sounds like an exaggeration, you've never seen the wing chun kung fu straight punch, nicknamed the "straight blast.") An elbow which doesn't have to spend energy to be stable is a better force conductor; it moves faster, confers greater leverage and supports more weight. Good luck! Snap a picture of your next plank and leave it in the comments!
Due to COVID-19, shipping systems the world over are experiencing abnormal delays. There is an enormous demand on postal and delivery services as online shopping has skyrocketed, due to store closures and stay-at-home mandates. This is an unprecedented situation, and we are working around the clock to fulfill your orders as quickly as possible. To be clear, we are filling orders in 2-3 days, and we are shipping immediately after that. Once shipped, our shipping partner, UPS, will get your order out to you as quickly as possible. Thanks for your support and understanding.
We want you to start your fitness journey with us as quickly as possible, that’s why we send every package to the USA & Canada via expedited or standard shipping with our partners at UPS. Once your order is received and processed, it typically takes 2-4 days to get to you once it leaves our warehouse. That’s our commitment and we stand by it.
We ship within Canada and the United States via UPS with Standard & Expedited shipping (whichever is faster)
For locations outside of the US and Canada, we ship using FedEx International (EUROPE and Other Nations), which is usually in transit for 7-10 business days, depending on location.
We ship all of our physical products with UPS, from our warehouse location in Kingston, Ontario, Canada. Delays caused due to custom withholds are not included in these estimated delivery times.
We offer a 30-day return policy, as long as: it is not more than 30 days past the date of delivery; and your item is in its original condition and packaging with the original order number. Refunds will be issued when the equipment is received back to the BodyRock warehouse, minus the original cost of shipping, and the customer is responsible for the costs of return shipping. To request a refund on physical product purchases, please contact us.
We cannot issue refunds on digital goods such as e-books or videos, as these are non-tangible goods that are irrevocable once the order is placed.
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