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Now I've heard everything...

This is a discussion on Now I've heard everything... within the Horse Trainers forums, part of the Training Horses category

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        06-28-2013, 06:19 PM
      #11
    Yearling
    Quote:
    Originally Posted by DancingArabian    
    Bear in mind that I was just trying to figure out why someone would think this and I was NOT stating I believed it.

    If a rider is leaning on the reins, all their pressure is directly on the horse's mouth. If the reins are passing through the bit and to the girth, wouldn't some of that pressure on the mouth be lessened and distributed to the girth as well?
    Posted via Mobile Device

    Good thought but no, the rings of the martingale make the rein a lever with it's fulcrum being the ring of the martingale. The applied force of the rider's hand is multiplied by the ring to make a greater the product force- which is the force on the bit.

    The strap on the girth is just an anchor so the martingale stays somewhat in place.
         
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        06-28-2013, 06:50 PM
      #12
    Foal
    Quote:
    Originally Posted by DancingArabian    
    Bear in mind that I was just trying to figure out why someone would think this and I was NOT stating I believed it.

    If a rider is leaning on the reins, all their pressure is directly on the horse's mouth. If the reins are passing through the bit and to the girth, wouldn't some of that pressure on the mouth be lessened and distributed to the girth as well?
    Posted via Mobile Device
    What you're thinking of are draw reins!
         
        06-28-2013, 06:50 PM
      #13
    Started
    How tight is your martingale to act as a lever?
         
        06-28-2013, 07:02 PM
      #14
    Yearling
    If it's engaged, it's a lever. If it's not engaged it's not doing anything. I don't personally use them unless it's a bad head tosser.
         
        06-28-2013, 07:45 PM
      #15
    Started
    Okay it sounded as if it were constantly engaged.
         
        06-28-2013, 08:33 PM
      #16
    Super Moderator
    Now I a wondering about the physics of this. Is it like a pulley or not?
         
        06-28-2013, 08:42 PM
      #17
    Green Broke
    Quote:
    Originally Posted by tinyliny    
    now I a wondering about the physics of this. Is it like a pulley or not?
    I think its function might be closer to that of a fulcrum - it provides the support to give the reins leverage.
         
        06-28-2013, 09:19 PM
      #18
    Yearling
    Quote:
    Originally Posted by tinyliny    
    now I a wondering about the physics of this. Is it like a pulley or not?
    No it's a lever. A pulley trades distance for force, a lever just multiplies force like a crowbar.

    So if you pull on the rope on a pulley to lift something heavy you will have to pull it farther than you want it to move but you will use les force to move a heavy object. Think weight room machines. You move your arms or legs farther distance wise than you move the weight, but you use less force than you would if you were lifting them without the pulley (free weights).
         
        06-28-2013, 09:59 PM
      #19
    Trained
    A martingale exerts downward pressure, no less, no more pressure than if not used. It just directs it downward, doubt it can save a horse's mouth much.
    Posted via Mobile Device
         
        06-28-2013, 11:57 PM
      #20
    Weanling
    Just to clarify, a running martingale gives you no mechanical advantage whatsoever (i.e. They aren't a lever). They only change the direction of the pressure.

    Quote:
    A pulley trades distance for force, a lever just multiplies force like a crowbar.
    with a crowbar you trade distance for force also.
         

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