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A Podcast Network Dedicated to Effective Thinking for Potent Exercise.
Our current offering consists of three shows that will help bring your limitless fitness potential within reach by teaching you how to think outside the box and into the undertones of exercise.
Think Fit. Be Fit. is released on Mondays, Fitness for Consumption is released on Wednesdays and Peach Pit Fitness is released on the first Monday of every month. 
Our host roster have over 70+ years of experience in exercise science, personal training, athletic training, kinesiology and innovating throughout the fitness industry.
This ongoing conversation about the nuances of training will help trainers, coaches and fitness lovers connect deeper to their exercise and the process of exercise science. Let's create a new conversation about exercise!

Mar 17, 2021

How often have you attempted dumbbell presses with half the weight of your barbell bench?  That should work, right? 

After all, if your barbell is balanced, you should have equal weight on both sides.  But unless you’re working with a pretty light barbell load, you recognized that splitting the weight in half doesn’t equate to a comparable workout.  You may think the challenge is related to shoulder stability, but you may want to think again. 

This is a biomechanics issue, which keeps you “In The Moment.”

Listen as Dr. J and GG deconstruct the biomechanics of barbell and dumbbell presses, and even toss an interesting perspective into the debate over fixed path v free weight exercises.

We’re ramping up the math and physics in this episode, but not to worry, you’ll get all the information you need to apply these concepts yourself, and decide; barbell, dumbbell or both?


In this episode we discuss:

  • Forces as vectors
  • How forces combine and resolve
  • Normal forces
  • Angle of incidence
  • Shoulder moments
  • Elbow moments
  • Do dumbbells offer more “freedom” than machines?



Angle of incidence - the angular difference between a normal force and an applied force vector


Normal Force - a force which contacts a plane at a perpendicular angle


Resultant - the product of the combined effects of two or more component vectors


Scalar Quantity - A quantity that is fully described by a magnitude alone


Vector Quantity - a quantity that is described by both magnitude and direction



Duffey, M. and Challis, J. (2011). Vertical and lateral forces applied to the bar during the bench press in novice lifters.  Journal of Strength and Conditioning Research. 25(9): 2442-2447.

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