Dammit, first musculoskeletal boo-boo (as opposed to e.g. digestive
insult, ooh those fish tacos urrgggh) of the year big enough to curtail
my running. Sore right hamstring. I'm all ears if anyone's got
advice, insight, sympathy, or a good funny insult.
where
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It's the lower part down by the knee. I guess that's called
semitendinosus - certainly it feels more like tendon than regular
muscle down there. Been feeling tight there much of the year.
Problems last couple years in *upper* hams, glutes, hips: seem to be OK
there so far (knock wood) thanks to stretching and self-massage.
when
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Last several miles of Sunday's long run, I felt lower right hamstring
getting tight. A brief burst of quicker running through a wider range
of motion - moderately paced strides - seemed to loosen it up for a
while. Didn't bother me much for 3.5 mi Monday AM run, but rapidly
became an issue Monday PM during downhill (Brooklyn Bridge, pretty
slow) about 4 miles in, so I cut run short. Haven't run since.
how
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Factors I can think of:
- mileage: last week saw a significant increase (66 after lifetime high
of 55 only attained a few weeks prior)... OTOH prior week was rest, so
fortnightly mileage was 66+42=108, similar to previous couple weeks
55+55=110. And almost entirely easy pace.
- flexibility: I'm an uptight mofo by nature, been religiously
stretching including hams. BUT, feels like that's doing a lot more for
mid-upper part of the thigh than the tendonous lower part. Dunno if
there are other stretches which might target this area. I do hit that
area with a bit of self-massage via "the stick" and rolling on a rubber
ball. Also, running so many slow miles doesn't put the legs through
much range of motion.
- sleep: wanted to sleep more (than my regular ~7:30-7:45) during last
week's mileage increase but instead got slightly less (say ~7:15) the
last several days - kept waking up early or getting to bed late, no
time for naps.
- core strength:
Hamstring injuries in distance runners are often the result of
poor core-muscle strength, which allow the top of the pelvis to
rotate anteriorly - that is, toward the belly button - thereby
adding tension to the hamstring insertion at the base of the
buttocks. During the extension phase of the stride (when the
knee drives forward and the lower leg is extended), the hamstring
must contract eccentrically (the muscle lengthens) to control the
movement of the tibia, or lower leg. Together, these factors
place a tremendous amount of stress on the hamstring muscle tissue
itself and the connective tissue insertions at either end of the
muscle.
So sayeth "Colleen Glyde Julian, MS" in her _Run Strong_ chapter,
"Boosting Economy Through Lower-Body Strength". Shortly thereafter
Jack Daniels is quoted as saying "the most important muscle groups for
distance runners are in the trunk: abdominals and back. Everything of
importance works from that basic foundation."
And my trunk is too junk-y: haven't been doing anything for my core
aside from attention to posture especially when sitting at work, home,
or on the train. In the past a rowing machine has served me well, and
I should get back to it. I come closer to enjoying it and therefore
doing it regularly than crunches and other such floor exercises.
what
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After Sun long run I took a cold bath. Since Mon PM run, been icing it
(about 15 min at a time, several times a day at least 2 hours apart)
and taking ibubrofen, not running, and some kind of arnica oil on it
overnight.
I plan to take ibuprofen another day or two, keep icing for a while,
try running 3.5 mi tomorrow (Thu) morning slow with glacial warmup,
start stretching very gently if it's not already hurting. Keep mileage
at about half (~30 mpw) for a week after that if all seems well.
trivia
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this muscle's commonly called "hamstring" because butchers would hang
slaughtered pigs from it