About Guy Razi

Posts by Guy Razi:

Disuse Atrophy

Disuse Atrophy

With chronic bed rest, muscle will atrophy. Every athlete knows this. If you’ve ever had your arm or leg in a cast, you know how weak the limb feels after only a few weeks of immobilization. However with reuse- it will begin to hypertrophy and quickly normalize in function. Jones et al 2004 demonstrated that(…)

Weight training and seniors

Weight training and seniors

Every now and then, someone asks me if they think their parents or grand parents should weight train. The answer is always yes, with the proviso that they are healthy enough to do so. LaStayo et al 2003 is one of a host of articles demonstrating that the elderly population can benefit from weight training.(…)

What do bands do?

What do bands do?

In a previous post we introduced the concept of using bands and chains to change your rate of force development while lifting. It is important to understand the implications. Ghigiarelli, JJ et al 2009 demonstrated in a 7 week study that bench pressing with and without bands (total load the same) had no effect on(…)

Dumbbell and Barbell Bench Press

Dumbbell and Barbell Bench Press

Elliot et al. 1989, Ferreria et al. 2003, McCaw and Friday 2004 all demonstrated by EMG that pectoralis major activation (clavicular portion) for dumbbells and barbell bench press is the same. Anterior deltoid activation during these exercises was similar as well. Interestingly, tricep activation was not measured in these studies and might bear investigation. All(…)

Hamstrings and Squatting

Hamstrings and Squatting

Recruiting the hamstring during a back squat has been demonstrated to minimize the anterior shear forces along the knee and the ACL. Essentially, the hamstring helps to hold the bones in place while the knee bends under the load. EMG studies by Wright et al 1999 demonstrated that hamstring recruitment during a 70% max squat(…)

Do It!

Do It!

A beginning is a very delicate time. Anyone who’s been in the fitness game a while knows that every January and October there’s a rush into the gyms. Most of us wait 3 weeks and anyone who is left over is generally welcomed into the fitness community with open arms. Why? Because change is hard.(…)

Concussions II

Concussions II

Concussions are a growing problem in sport. With mild concussions in soccer and skiing to severe ones in hockey and cyclists- all athletes are susceptible to one. In November 2008, a group of neurological experts met in Zurich to create an international standardized consensus on concussion and its basic treatment. The goals were to define(…)

Strokes

Strokes

Strokes are a growing problem. In the western world, they are the second leading cause of death and cause 10% of deaths worldwide. There are 2 types of stroke, ischemic and hemorrhagic. Ischemic, accounting for 80% of strokes is when a blood clot cuts off blood to a part of the brain for a prolonged(…)