Many dietitians recommend sitting down while eating as opposed to standing or eating "on the go" (in a car, while commuting, walking to work, etc.) because it prevents mindless over-eating, which can be damaging to health. Sitting up right helps with digestion better than slouching as well.
supine flexion is lying in supine (on your back) while "flexing" (bending) your knees into your stomach and keeping your head off the floor
A plie is the bending of the knees while keeping the hips and shoulders aligned and the feet flat on the floor. It can be performed in any position of the feet.
No no no! Locking your knees while exercising in any way can cause joint problems and hyper-extension. Never lock your knees!
The knees is known as a hinge joint, as it can only bend in on direction when it's bent. while the knees is bending the muscles in the leg are expanding creating a wider stride, when the legs comes back the muscle contracts.
peanuts makes your bones brittle, thats why people drink milk while eating peanuts
it is not used to bending in that direction
A tray can be made from plastic, wood, stainless steel, aluminium, etc. A tray is handy to carry food on, or to have on your knees while eating a plate of food while watching the TV.
The basic back handspring requires three main elements: leaning back while bending the knees and swinging your arms back, jumping up and back while reaching with your arms and looking for you hands, and blocking ( a shrug of the shoulders instead of bending you arms) to your feet. The trampoline has a stretchy surface which allows you to exert less energy on your jump and land on your hands with less force.
Here are some exercises you should do before running:(These are in an ordered list)Bend down and touch your toes (without bending your knees) for at least 30 seconds, twice.Quad Stretch. Put your right foot up and grab it with your left hand, and do that but mirror.Spread your legs apart while sitting down and touch your toes with your hands, without bending your knees.And last, but not least, step in front of a wall, put one foot forward and press against the wall.
In basic terms, body mechanics is employed to help people work and play safer. For example, always squarely pick up a load while bending the knees to reduce back injury.
Casualty on the back with knees bent
You can wear an abdominal belt while eating if you choose to do so. It really should not be worn while sleeping because it constricts you too much.