constantly flexed posture
Kyphosis of the spine upper crossed syndrome is a common cause
Flex means to bend something that is pliant or flexible. Flex is also a verb in a sentence. For examples on how to say flex in a sentence, see the examples below. He began to flex his arms. Flex slightly at the elbow to assist in the catch.
Flex is a synonym for flexed.
On his or her back with their knees flexed
Keep your arms and legs Flexed. It might hurt a little at first.
On his or her back with his or her knees flexed
The flexed arm hang is a measure of muscular endurance. The "flexed" in the exercise description refers to the muscles flexing to perform the exercise, and not to any flexibility in range of motion.
When all major body parts are flexed it is the fetal position.
It means when a person assume a stiff, flexed posture when bending forwards e.g. to lift a weight or while walking. It is generally due to rigidity or increased muscular tone and bad habit which in turn stiff the muscle more. In lifting it may cause low back pain and damage to the lumbar spine or related structures e.g. intervertebral disc, ligaments, tendons and muscles.
bendable
The sternocleidomastoid muscles are the ones that flex when the intercostals are flexed. This will also cause the scalene muscles to flex.