where the Crapbox?
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?
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Originally posted by Daisuke-kun:
back~ Woot!
I'm still in search of the Ace...
ace ventura..
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Ace of Clover.
So how kenn3th? want to take up the Jack Of Dia's Chair?
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i only thought of ace combat
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i'm currently making stew. yum yum
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lol, i am eating lobsters!
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anyone home?
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>:) hohoho i m here and i m soon going off.
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awwww so bored
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haha, i m back anyone there?
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me
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its raining
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I'm doing standing broad jump in my room, using bolster as the line den a matress as my landing spot.
I need help improving!
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practising for nafa?
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nxt year.
and i've got nothing better to do anyway during the holiday.
might as well body built.
i have 4 *ahem* ^^
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ok good for u
go study pls
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nah.
i'm done wif 1 station! done 100 sit-ups~
time for errr.. strecthing... i wonder how u praticed dat.
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sit on the floor and stretch as far as u can
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dats all? do that once and move to next training?
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3 times la
where got ppl do 1 time only
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oh shit.
i found out that sit-ups can lead to danger... wonder why sg havent change the napfa thing to crunches instead
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wat danger can it lead to?
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I'm done with stretching. can touched my toes again~ i losed my touch.
did it twice. cant do thrice... my leg was turning numb.
shall do thrice 2moro.
the danger of sit ups are ...
Full sit-ups involve the hip flexors, as well as abdominal muscles. This can cause the back to arch, with the risk of spinal damage. This is a particular risk for individuals with weak abdominal muscles, but also for individuals who train aggressively, exhausting their abdominal muscles in a training session. Even if these risks are avoided, the leverage exerted by the hip flexors risks compression of the lumbar intervertebral discs.[1] Most branches of the US armed forces have ceased using sit-ups in training because of the problems resulting from these factors, which can include direct back damage and referred pain or numbness due to pinching of the spinal cord.[2]
According to the National Institute of Occupational Safety and Health, a straight leg sit-up generates approximately 3500 newtons (790 lbf) of force on the spine, and a bent-knee sit-up 3350 newtons (750 lbf), both levels above the 3300 newtons (740 lbf) that correlates highly with lower back injury. [1]
Hip flexor involvement
Modern research suggests that the abdominal muscles are responsible for only the first 30° of lift in a sit up — effectively the part of the motion where the shoulders only leave the ground. The hip flexors are responsible thereafter. This diversion of effort from the abdominals reduces the effectiveness of training for purposes of abdominal isolation[1] and makes the sit-up a test of combined spinal and hip flexion rather than spinal flexion alone.[2]
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1 time 50.
intervals of 30mins
max 1hr 30
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but i dunno why.. i wan do 100situps full...
but now... scared to do..
maybe 50 can... but feel incomplete.. i'm done wif my workout.
100situps. stretching and a few jumps. 2moro shall do suicide. sprint all the way. 100 rounds in my house. den 5 pull ups and den another set of 100sit ups.