Post by Kenren on Oct 2, 2013 21:24:30 GMT -5
So I'm in an Equine Exercise Physiology class, and we learn a lot of stuff that might be interesting/useful to people here, so I thought I'd share. Plus this is getting me to look through my notes for my exam on Friday.
To start off, this class is taught by Dr. Brian Nielsen, a really cool guy and one of only probably 30 people in his field worldwide. He gets invited to give talks all of the world, yadda yadda. Basically this guy knows his stuff. He does a lot of research for the university (Michigan State), most of it having to do with bone/tendon/ligament/how exercise affects these things. He was a jockey until recently, mostly in Quarter Horse races though he's trained/exercised Arabians, Thoroughbreds, and Standardbreds as well. He currently owns/trains/races Standardbreds because that's all we have in Michigan lol. So anyway, these are just some fun things I've learned in class. Enjoy~
- Humans do something called 'blood doping' sometimes before races - injecting red blood cells into their system before a race to give them more oxygen capacity. Horses do this naturally, their bodies producing more red blood cells when they are exercising.
- 50% of all genes in TBs come from 10 horses, 80% come from 31 horses.
- Swim-training horses is a great way to give horses strong muscling, but should never be used as the primary source of training. It creates a weak skeleton.
- "Interval" training, where you gallop the horse, slow it down, gallop, slow, is absolutely useless, frustrates the horse, and effectively slows it down physically by changing muscle fiber types to give it too much stamina, not enough speed.
- Once a horse is fit, not much is needed to keep it that way. That's why top racehorses are only worked (ie run at race speed) every two weeks or so, and other than that have short 'maintenance' gallops.
- Some feel that months of slow training is necessary to increase bone strength, when in reality short sprints do more for bone very quickly. Slow training doesn't hurt, but makes no difference when it comes to bone.
- In a study, weanlings sprinted over concrete at very short distances (something like 82 feet) experienced less osteochondrosis, or bone chipping/loss, than those who were not.
- The previous is because of something called 'loading' - impact to the bone makes it stronger. This is why swim-training makes bones weak. This is also why astronauts lose bone mass while in space.
- Keeping a horse stalled with no access to pasture tremendously weakens bone. Training doesn't make up for the horse being stalled, especially in young horses - they aren't being ridden with any speed, and that's what's needed to strengthen the bone.
- Only truly matters to horses who put strain on the bone - racehorses, jumpers, barrel horses, etc. Dressage, trail, pleasure, halter, etc horses will probably be fine.
- The key is those first 5-10 seconds of running strides when a horse is turned out. That's all that's necessary to strengthen the bone if it's given daily.
- Partial turnout is fine, and perhaps even better than full turnout - if the horse has been stalled overnight, it is more likely to give those running strides.
- Basically, pasture trumps stalling, but in the horse racing industry as well as others, people want the horses to look good for sales, so yearlings are stalled to keep their coats nice and keep them from getting bite/kick marks from other horses. It would be better to turn them out, at least as far as preventing future injuries.
- Multiple studies show that horses that race as two-year-olds experience less injuries than those started later in life. This is because they get that necessary loading on their legs earlier in life, giving them stronger bone structure. Of course, if they aren't managed correctly there can be problems, but the studies are pretty conclusive on this point. So racing two-year-olds isn't just about monetary incentive - it's actually healthier for the horse.