Adam Fortais

How do you relate exercise intensity from one person to another? Heart rate, perceived effort, lactic acid build up are some of the best methods because these signals increase for everyone the harder they work... right? This week Sawayra talks to Sydney Valentino who tells us how these bodily responses don't happen the same way for everyone. Especially with people who have suffered a spinal injury. How then, can intensity-based exercise be prescribed when these standard systems don't work the way we think they do? Follow Sydney on Twitter @SydValentino Follow Sawayra on Twitter @Seeingaway For more like this, head to scientificanada.ca