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Showing posts with label foot strike. Show all posts
Showing posts with label foot strike. Show all posts

Thursday, March 11, 2010

Mastering downhill running


Been in Tucson helping with run mechanics & sport psychology for age group triathletes & doing some sagging up Mount Lemmon – now that’s a cool ride & probably a monster run. Camps are the way to go if you come from colder winter climes to jumpstart your season. Tucson is literally swamped with athletes of every kind at this time of year & besides opportunities to train swim, bike & run, there’s tons to do & GREAT places to eat. This year the weather has not played ball – cold & wet, but after what’s been going on weather-wise in Boulder & back east, there are no complaints.
Then we have a new world champion! Simon Martin, a friend & regular who attends drills & with whom I work on some scheduling & advice, won the world masters cross country title in Canada recently & made the final in both the 3000m & the 1500m – indoors. Congrats Simon!
Then we have another client/friend, who dived into BFR sans boots-and-all & then owned up to getting a stress fracture shortly afterwards! There were however some extenuating circumstances, so we’ll give him the benefit of the doubt…; speedy recovery Simon (another Simon).
This week I am delving into downhill running. There’s so much to say about this topic & so many struggle to gain the full advantage of gravity in races. 1stly I used to agree that “letting go” was a good idea in short races, but now I think down hills need to be “run” to gain full advantage. It helps to push the arms out a little wider during descents for balance & stability & also to open the elbow angle somewhat, lengthening the arm lever to keep the kinetic chain intact while taking longer strides. BUT I THINK A HIGHER STRIDE RATE IS THE ANSWER – this provides more control & less fatigue.
Lean off the line of gravity as the vertical, rather than off 90* being vertical on the level.
Mid foot strikers are able to brake with the foot & shoe, while heel strikers have to control descents with the shin (decelerating the lowering of the forefoot) & quad. This accelerated eccentric contraction massively fatigues the legs & does micro damage as well. Some studies have shown for example that some 70% of quad power is lost in the 1st 6 miles of the Boston Marathon due to the extreme nature of that descent. Heel strikers tend to step out from a slope & therefore “fall” much further to impact, while a good mid foot runner (still putting the heel down after the mid foot or at the same time), steps down the hill, a more kinesthetic move, with far less quad demand & dissipation requirements.
I remember in the 90s when I was running altitude camps for Olympic hopefuls in South Africa how we used to encourage the athletes to keep their heart rates up on descents by running down as hard as they could. Just this weekend some top long course triathlon pros were telling me how high they got their heart rates when descending on the bike – working against resistance down the hills to attain maximum speed.
Now, unlike the bike, bad form/lack of skill when running down can be ruinous to back, knees, shins & quads. To become a master runner on the downs requires an assessment of your current ability – do others kick your butt on the downs & are you really uncomfortable when running down & are you really beat up afterwards? If so assess your foot strike, body alignment & the other factors I have mentioned. Then practice in a number of ways – strengthen your legs through progressively building eccentric strength with lunges, squats, static & then linear plyometrics like hops & bounds. Then gradually, with short duration, shallow, well-cushioned (read grass) hills slowly develop both your technique & functional strength. Add one progressively longer run per week on a course that goes predominantly up on the way out & down on the way back. Eventually run some unidirectional runs; some faster & others longer, downhill. Progression rates with this skill & conditioning will be slower than for normal running as is indicated by the fact that a taper for a race with a lot of downhill running requires about a week longer to taper effectively.
So learn to actually run downhill rather than hang on & survive – turn descents into a weapon in your arsenal.
Till next time.
Bobby McGee
http://www.bobbymcgee.com/
PS: My new DVD on running form & run drills (with plenty of extras) is now available, either order from my website (www.BobbyMcGee.com) or from Endurance Films at www.endurancefilms.com

Sunday, August 9, 2009

Landing


The debate rages on about modern running footwear & the frequent breakaway groups calling for less running shoe (support & cushioning), because it is robbing the body of the opportunity to cushion itself & land more effectively. Look at this facinating work being done with dancers & athletes.


Wednesday, July 22, 2009

Even the greatest changed his foot strike


After his 1st marathon (as an adult) in 2006, in which he was well beaten into 3rd place (2:06:35!) Haile Gebrselassie said, "I have to change a lot of things before I can become a good marathoner." One of these changes was to come off his forefoot to a more mid foot strike. He believed that the elastic sprinter-like stride (on the balls of his feet) he used to dominate on the track was not sufficiently energy efficient in the marathon.

Foot Strike


A coach from Malaysia recently emailed me asking about foot strike & I fished up an answer from my FAQ file. Thought I'd share it with you all today.


Let me start of by making it clear that I do not advocate either mid foot, heel 1st, whole foot or toe (ballet anyone?) running. I prefer to see what the runner currently does, what success they are having & what their injury profile is. Then I might suggest actions that increase performance, but at the same time reduce the incidence of injury.


Every runner has a “natural” way of placing their foot on the ground. Some place, some drop & how this came about is as a result of many things. Most hit heel 1st & this is fine & preferred by most PTs as it has the least probability of injuries. The only key with heel strike is that the foot contacts the ground almost below the hips & that the toe is not too high off the ground (fore foot should be on the ground very quickly after the heel strikes the ground – the shin should not have to work too hard to decelerate the fore foot as it is lowered to the surface). If there is a 2 beat foot strike - heel, then mid foot, the toe is up too high. The foot should form a partial wheel when heel striking & roll from heel to toe with no significant pause at heel strike.


Striking on the outside of the mid foot (lateral) is also effective & considered a more elite foot strike as displayed by many top Kenyan, Ethiopian & other African runners. As long as the heel settles onto the ground soon after as it loads & then toes off. Sebastian Coe speaks of the heel kissing the ground. Toe off is an elastic release, not a push off. This is probably preferable from a performance stand point, but remember many elite runners are still heel strikers & do just fine. A full forefoot strike that has the heel off the surface throughout the support phase till toe off is not recommended (i.e. the heel never touches the ground). Some folk can do this for shorter distances – like sprinters, but it carries a higher risk of injury, is strength predicated & ultimately much more fatiguing. This is not good at all for triathletes as they are already too fatigued here after the bike. Apparently about 85% of runners are heel strikers, but none of the greats run this way - they land mid foot & the heel touches the surface at mid stance.


Work with what you have & let performance & comfort be your guide. If you need more detailed specific attention, contact me through my website at http://www.bobbymcgee.com/