Sled Pulling
"Dragging the line - power - mass - speed developed by sled pulling" Robb Rogers
"One of the earliest modes of moving loads has come back into vogue as a low tech lower body strength, power, and mass developer. Sled dragging is an excellent training method to increase size, add power, enhance endurance and build functional strength."
Enhanced Fitness and Performance
"Effects of resisted sled towing on sprint kinematics in field-sport athletes" Robert G. Lockie, Aron J. Murphy, and Christopher D. Spinks
"While this study indicates that the
acute effects of resisted sled towing will change some
of an athlete’s acceleration mechanics, this training
protocol may be very useful in order to overload an
athlete’s sprint technique and develop the specific recruitment
of fast-twitch muscle fibers, particularly
compared with traditional weight training. Further research
is needed to examine the longer term effects of
sled towing on sprint kinematics."
elitetrack.com
"Flying in Four and Vertical Jump Bible creator Kelly Baggett interviewed"
"I LOVE resisted sprints and have seen great results in athletes using variations of them Not just resisted sprints, but resisted sled walks, marches, car pushing, truck pushing, you name it. Anything you can do where you’re on the ground working against horizontal resistance is good IMO.
"Sled pulls are more of a 'pull' than a sprint. You should be able to move, but not really sprint. How much weight you use depends on your strength. Experiment with the poundages and don’t be afraid to load it up."
VerticalJumpZone.com
"How to use sled training to dramatically improve speed and acceleration" Mike Boyle
"my feeling is that loads up to and exceeding the athletes' bodyweight can be used for special strength work as long as the athlete exhibits a similar motor pattern. Think of sled marching as a special type of leg press. Athletes incorporate the joint dynamics of sprinting through hip hyperextension against resistance. This can be an extremely heavy movement as long as we get a technically sound march action"
StrengthCoach.com
"The physical power pre-requisites and acute effects of resisted sled loading on sprint running kinematics of the early acceleration phase from starting blocks" Peter Scott Maulder
"the insignificant relationship between unloaded sprinting and resisted sprinting with a sled load of 10% body mass revealed that using a load of 10% body mass may be insufficient to cause the desired training stimulus. Hence the load of 20% body mass may be more appropriate as a significant relationship was discovered between unloaded sprinting and this resisted sprint condition."
New Zealand Institute of Sport and Recreation Research
"Proper loading for sled pulls" Helen Kollias
"Too little weight and the sled slides past you when you stop running – meaning you’re not getting much of a training effect. Another sign you don’t have enough weight on the sled is that it becomes airborne during your sprint. ... Too much weight and you’re nearly parallel to the ground when you “run”. ... Thus, with too light a load there isn’t enough of a stimulus. With too heavy a load your running pattern becomes sub-optimal."
PrecisionNutrition
"The pros and cons of using resisted and assisted
training methods with high school sprinters: parachutes, tubing, and towing" Ken Jakalski
"Current research suggests that to achieve gains in maximum velocity athletes should not be slowed down more than 10% because, as the resistance becomes greater, the ground dynamics begin to change."
Coachr.org
"Resistance runs in speed development" M. Letzelter, G. Sauerwein and R. Burger
"The individual
differences in support times grow as the additional load is increased. The higher the load, the longer is the duration of the support phase. The total average changes are nearly 21% and therefore much larger than the changes in running time, stride length and stride frequency. This affects different muscular contraction patterns and alters force application, particularly in the stretching-shortening cycle."
athleticscoaching.ca
"Sleds training for acceleration development" Bruce Kelly
"the sled is a good tool for enhancing acceleration and by that I mean the first 5-10 meters of a race. ... for developing specific acceleration strength in those first 5-10 meters it will help teach the athlete to drive into the ground, use their arm drive aggressively, and overcome inertia."
completetrackandfield.com
"Sleds training for acceleration development - Part II" Bruce Kelly
"One way to think of sled training is as a functional single leg press. You can put your athletes into functional positions(i.e. standing and moving) and strengthen them especially their lower bodies and core."
athletesacceleration.com
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