Jalen Hurd back at it again on the treadmill

#77
#77
If you want a hard-core scientific perspective on this matter, this study (Human running speed of 35-40 mph may be biologically possible | SMU Research), although six years old, suggests that “the [maximal] biological limits [of human running speed] might be pushed back beyond the nearly 28 miles per hour speeds achieved by Bolt to speeds of perhaps 35 or even 40 miles per hour. . . . [T]he researchers found that the critical biological limit is imposed by time — specifically, the very brief periods of time available to apply force to the ground while sprinting.” In short, this kind of progressive training will literally force the athlete to shorten the time interval between foot strikes and, thus, top-end speed.

“In elite sprinters, foot-ground contact times are less than one-tenth of one second, and peak ground forces occur within less than one-twentieth of one second of the first instant of foot-ground contact. The researchers took advantage of several experimental tools to arrive at the new conclusions. They used a high-speed treadmill capable of attaining speeds greater than 40 miles per hour and of acquiring precise measurements of the forces applied to the surface with each footfall. They also had subjects’ perform at high speeds in different gaits. In addition to completing traditional top-speed forward running tests, subjects hopped on one leg and ran backward to their fastest possible speeds on the treadmill.

According to Matthew Bundle, an assistant professor of biomechanics at the University of Wyoming, “The very close agreement in the briefest periods of foot-ground contact at top speed in these two very different gaits point to a biological limit on how quickly the active muscle fibers can generate the forces necessary to get the runner back up off the ground during each step.”

The researchers said the new work shows that running speed limits are set by the contractile speed limits of the muscle fibers themselves, with fiber contractile speeds setting the limit on how quickly the runner’s limb can apply force to the running surface. . . . “Our simple projections indicate that muscle contractile speeds that would allow for maximal or near-maximal forces would permit running speeds of 35 to 40 miles per hour and conceivably faster,” Bundle said.”
 
#79
#79
Volosaurus rex said:
If you want a hard-core scientific perspective on this matter, this study (Human running speed of 35-40 mph may be biologically possible | SMU Research), although six years old, suggests that “the [maximal] biological limits [of human running speed] might be pushed back beyond the nearly 28 miles per hour speeds achieved by Bolt to speeds of perhaps 35 or even 40 miles per hour. . . . [T]he researchers found that the critical biological limit is imposed by time — specifically, the very brief periods of time available to apply force to the ground while sprinting.” In short, this kind of progressive training will literally force the athlete to shorten the time interval between foot strikes and, thus, top-end speed.

“In elite sprinters, foot-ground contact times are less than one-tenth of one second, and peak ground forces occur within less than one-twentieth of one second of the first instant of foot-ground contact. The researchers took advantage of several experimental tools to arrive at the new conclusions. They used a high-speed treadmill capable of attaining speeds greater than 40 miles per hour and of acquiring precise measurements of the forces applied to the surface with each footfall. They also had subjects’ perform at high speeds in different gaits. In addition to completing traditional top-speed forward running tests, subjects hopped on one leg and ran backward to their fastest possible speeds on the treadmill.

According to Matthew Bundle, an assistant professor of biomechanics at the University of Wyoming, “The very close agreement in the briefest periods of foot-ground contact at top speed in these two very different gaits point to a biological limit on how quickly the active muscle fibers can generate the forces necessary to get the runner back up off the ground during each step.”

The researchers said the new work shows that running speed limits are set by the contractile speed limits of the muscle fibers themselves, with fiber contractile speeds setting the limit on how quickly the runner’s limb can apply force to the running surface. . . . “Our simple projections indicate that muscle contractile speeds that would allow for maximal or near-maximal forces wouldpermit running speeds of 35 to 40 miles per hour and conceivably faster,” Bundle said.”
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Lots of good info out there. This does seem to be a valid training method. What many of us are forgetting is the energy and force required on a football field to get up to these speeds does not translate well for most players. It's not necessarily about what is my maximum top end speed. It's more about how quickly can I accelerate to my top end speed. Seeing Jalen work on going from a dead stop to an immediate 23 mph running speed is impressive to me. It does work on muscle memory and it does speak to his acceleration. If nothing else his mind also knows what it feels like and takes to accelerate like this and this should serve him well IMO.
 
#82
#82
I believe he has the power part of being a RB, probably looking to increase his top speed once he gets true the pile.

Just be safe doing, looking like he is training at a professional trainer center.
 
#83
#83
VFL-82-JP said:
So what the heck is Jalen doing with these repeated treadmill sprints?

I think he's learning how to run faster in the open field, because he knows that is the ONLY element of his game that doesn't always compare favorably with the top running backs in college football today. So he's building it up so it does compare well. In short, he's training himself to be the perfect back.

How do you "learn" how to run faster? Some might say that's nonsense, you can't "learn" to run faster, you just develop your muscles and responses by training. Okay, but maybe you can "learn" it, too.

Muscle memory is a real thing. Golfers know all about it, and gymnasts. You do precisely the same moves over and over again, and your body and mind make it a subconscious response. After a while, you no longer have to think about it, it's what comes natural.

And no one else can really teach it to you, because every body is unique...specific muscle mass with a specific combination of fast- and slow-twitch fibers, hanging on a specific skeletal frame with specific tendon and ligament strengths and lengths, wired up by a very specific tree of nerves and glands. It's not exactly the same for any two people.

But if Jalen can "feel" what it's like to run at 23 mph, even for brief periods, he can start to build muscle memory of that speed. Rather than playing hit & miss out on the track, where he might have a burst of 23 mph surrounded by slower stretches, where it's hard to say "ah, that's the ticket," then focus on that particular motion. Instead, jump on the treadmill, keep up, and feel what it feels like. Okay, that's 23 mph. That's where I need to get to. That's how it feels to really burn it up.

And that's exactly what I think he's doing. He's making himself the ideal running back, using Science.

Go Jalen! Go Vols!
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23 mph = 33 feet per second = 11 yards per second. Jalen at top end in a straight line, unobstructed, would cover 44 yards in 4 seconds.

Wow!
 
#84
#84
Volosaurus rex said:
If you want a hard-core scientific perspective on this matter, this study (Human running speed of 35-40 mph may be biologically possible | SMU Research), although six years old, suggests that “the [maximal] biological limits [of human running speed] might be pushed back beyond the nearly 28 miles per hour speeds achieved by Bolt to speeds of perhaps 35 or even 40 miles per hour. . . . [T]he researchers found that the critical biological limit is imposed by time — specifically, the very brief periods of time available to apply force to the ground while sprinting.” In short, this kind of progressive training will literally force the athlete to shorten the time interval between foot strikes and, thus, top-end speed.

“In elite sprinters, foot-ground contact times are less than one-tenth of one second, and peak ground forces occur within less than one-twentieth of one second of the first instant of foot-ground contact. The researchers took advantage of several experimental tools to arrive at the new conclusions. They used a high-speed treadmill capable of attaining speeds greater than 40 miles per hour and of acquiring precise measurements of the forces applied to the surface with each footfall. They also had subjects’ perform at high speeds in different gaits. In addition to completing traditional top-speed forward running tests, subjects hopped on one leg and ran backward to their fastest possible speeds on the treadmill.

According to Matthew Bundle, an assistant professor of biomechanics at the University of Wyoming, “The very close agreement in the briefest periods of foot-ground contact at top speed in these two very different gaits point to a biological limit on how quickly the active muscle fibers can generate the forces necessary to get the runner back up off the ground during each step.”

The researchers said the new work shows that running speed limits are set by the contractile speed limits of the muscle fibers themselves, with fiber contractile speeds setting the limit on how quickly the runner’s limb can apply force to the running surface. . . . “Our simple projections indicate that muscle contractile speeds that would allow for maximal or near-maximal forces would permit running speeds of 35 to 40 miles per hour and conceivably faster,” Bundle said.”
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Nerd
 
#87
#87
GetEmVols said:
Wonder who replaces him when he gets hurt from doing this? Can they not track his speed on a field?

Sorry for being that guy, but this just seems like an unnecessary risk when he is the difference between 8 wins and a national title.
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That's not how it works.

Lol @ people complaining about this. How dare he train to develop more explosiveness and break away speed, literally the only thing his game lacks.
 
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#89
#89
neyland05 said:
Worries me. Not gonna lie I tried turning it up once. Got ugly quick. Feet flew out from under me and it flipped me off and in to a wall. Had some bad burns but it did make for a good laugh for everyone.
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No offense but your not a 5 star D1 SEC athlete, that is to be expected
 
#90
#90
BigOrange15 said:
That's not how it works.

Lol @ people complaining about this. How dare he train to develop more explosiveness and break away speed, literally the only thing his game lacks.
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Thank you. Ppl act like their knowledge trumps that of a training staff with several certifications, doctorates, and degrees doesnt know how to keep players safe when training.
 
#91
#91
I guess the challenge was accepted. I seen so many people unimpressed with him running 19 mph with his hands on the rail. So he comes back and runs 23 mph with very minimal usage of the rail. Savage!

Jalen Tabor... PLEASE stay eligible and healthy until this game!
 
#92
#92
BigOrange15 said:
That's not how it works.

Lol @ people complaining about this. How dare he train to develop more explosiveness and break away speed, literally the only thing his game lacks.
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His hair game lacks Jack Sparrow like braids with little beads tied at the end.
 
#93
#93
Bloodrunsorange27 said:
I actually just took offense to your condescending tone to another poster just stating their concern over our star RB getting injured.
You seemed to be lecturing the board on not having the stomach to see our players train which I didn't agree with.
If it was a video of Jalen bench pressing or squatting and people we're worrying about injury then I could see it but that wasn't the case.
It's common sense that some forms of training have higher risks than others.
I've seen and experienced injuries in the weight room and on the field. My point was that jumping on a treadmill going over 20 mph has a higher risk of injury than other forms of training.
That doesn't mean what he's doing hasn't been proven to have positive results on speed. It just means it appears to be a high risk of injury approach in my opinion.

Btw we're all really impressed that you lifted weights for so long. Once again assuming that others don't have as much experience or knowledge as you do.
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Sir--the more you talk the less intelligent you appear to actually be.

Being on the treadmill DOES NOT equate to a higher risk of injury than going heavy on the weights. There's a reason the coaches made Jamaal Lewis and Al Wilson STOP their Bench press competition around 450 lbs--they know what you obviously have failed to understand.

And I'm not the only guy or girl on here who has worked out with weights in some capacity for 30+ years. I actually read posts and try to understand their perspective before sharing anything.

And I completely STAND by my factual statements in my original post in this thread. MOST fans have NO IDEA how hard the training MUST BE in order to be elite in the SEC--and they over-react like scared school kids when they think about the risks involved while pushing yourself beyond personal limits in order to make GAINS in performance.

Finally--you also prove yourself to be a HYPOCRITE by condemning me for sharing my own opinion in my own way while you continue to share yours while absolving yourself of any guilt for being condescending.

You must be a DEMOCRAT! :crazy:
 
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