bicycle


The Bicycle 

YouTube Video



Muscle Effort
External Motion Resistance Energy
Body Weight & G-force








1. Adult Exercise Efficiency Score*                    
 
 20-25 out of 100 as long as user remains seated
(for adult muscle strength building)   
       
  

2. Adult usability**                                             Easy to moderate
(Joint/disc compression levels) 

3. Motion Range***                                                Wide

4. Opposing Muscles ****             No - Unless used with with toe cages or peddle straps with upward exertion   

5. Best Use *****                                     Transportation, Adult Cardio Exercise 

6. External Motion Resistance Direction ******    Skeletal - Parallel 

The Bicycle is one of the most efficient adult cardio exercise devices by comparison to what else is offered in today's wellness center for two major reasons.

First the body weight is being supported by the bike, not the leg joints, which allows the core running muscles to build up a falling body weight worth of additional muscle strength still causing about the same amount of skeletal stress. 

The other main reason for far better adult cardio exercise efficiency is because between 20-25% of the External Motion Resistance is moving in the directions that will efficiency hinder running muscle contractions.

* A score of 100 means that all External Motion Resistance Energy is only opposing muscle contractions, just as a score of 0 means that no External Motion Resistance Energy is opposing muscle contractions, as a score of 50 means that the skeleton works just as hard as do muscle.  

**  Adult Usability:

Gentle (Almost no compression force travels parallel to extremities or spine) Should not build up adult Joint/disc damage 
light - (Compression force on Joints/discs is lighter than Tension Force pulling against contractions) 
Moderate (similar amounts of joint/disc compression, as muscle contraction opposition
Difficult (most External Motion Resistance is used up during joint and disk compression

*** Motion Range is a estimate of how much of the targeted muscle range is opposed. Very Limited, Limited, Wide, Complete 

****  Opposing Muscles. can the exercise deeply oppose muscle contractions of all motions 

***** Best Use

****** Any muscle or cardio exercise method or workout machine that directs all External Motion Resistance Energy, into the body through the hands or feet is Skeletal Loading, as the forces move parallel to the skeleton. 
Any that directs some to all of this energy against contractions first crosses the body or extremities thus allowing muscles to work harder than when joints and discs must first handle all involved forces,  which is better for adults, but not for children. These are called Muscle Based exercises.  

  
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