“When people are doing curl up over gym balls and sit-ups, and this kind of thing, they are replicating a very potent injury mechanism on their back,” says McGill. “Every time they bend it they are one repetition closer to damaging the disk.”And of course, when people do crunches...
The meaning of SIT-UP is a conditioning exercise performed from a supine position by raising the torso to a sitting position and returning to the original position without using the arms or lifting the feet. How to use sit-up in a sentence.
An anatomically detailed, three-dimensional model that was sensitive to lumbar curvature and muscle activation patterns was used to assess tissue load distribution during the performance of both isometric and dynamic situps and standing flexion manoeuvres in 12 young men. Situps were performed starting...
Janda Sit-Ups Tips Here are a few tips that will help you to maximize the effectiveness of this exercise. The Janda sit-up can be a very challenging exercise to do even for fit individuals. If you cannot do one or more reps, start from the top of the sit-up and slowly lower yoursel...
sit on the fence v expr figurative (be undecided)保持中立 sit on your hands v expr figurative (be passive, not do anything)袖手旁观,置之不理,坐视不管 sit tight v expr (wait for [sth])静待事态的发展 sit-up, situp n (type of physical exercise)仰卧起坐We had to do fifty sit-ups ...
The survey found that 44.3 percent of higher-ups either don't allow their employees to sit on the job, or their employees default to standing despite a lack of company policy. Of those who require workers to stand, 33.8 percent said this was to avoid creating a negative impression on custo...
siton it(shove it up your ass) verb s'enfiler çaverbe se le mettre bien profondverbe siton one's hands(to remain idle when action is needed) verb rester les bras croisésverbe sit-up [sit-ups](exercise in which the abdominal muscles are contracted) ...
A6: We normally make shipments by EMS, UPS, Fedex, TNT, DHL, or AIR for small orders, which usually take about 5-12 days. And by SEA for bulk orders, which usually takes about 1-2 months depending on the destination. Q7: Can I visit your company...
Last tip: make sure you’re body is aligned straight. It’s really common to curl more towards one side and end up doing really crooked sit-ups when you get tired. Do your sit-ups straight! Sit straight on a comfortable surface. ...
Sit-ups tester 来自 Semantic Scholar 喜欢 0 阅读量: 37 作者: 侯保东 摘要: The utility model discloses a sit-up tester. The sit-up tester comprises a host computer, a testing part and a testing platform. A control part is arranged in the host computer, and both the testing part and ...