When once has the indefinite meaning 'at some time', we use it to talk about the past, but not the future. Compare:
I met her once in Venezuela.
Once upon a time there were three baby rabbits . . .
Come up and see me some time (NOT . . . once.)
We must have a drink together one day. (NOT . . . once.)
Wrist Radial Deviator and Flexor Stretch
Arm, Wrist, and Hand Stretches:
Kneel on the floor. Flex both wrists, and place the palm of each hand on the floor. Point the fingers outward on a line perpendicular to the midline of the body. While keeping the elbows straight, lean backward (buttocks to the heels), keeping the palms flat on the floor.
Affected Body Part:Most-stretched muscles
: Flexor carpi radialis, flexor digitorum profundus, flexor digitorum superficialis, palmaris longus. Lesser-stretched muscles:
Flexor carpi ulnaris, flexor digiti minimi brevis, flexor pollicis longus, extensor carpi radialis brevis, extensor carpi radialis longus, extensor pollicis brevis.
The closer the hands are to the knees, the easier it is to keep the palms on the floor. The farther the hands are in front of the knees, however, the greater the applied stretch. The distance each hand is away from the body’s midline also influences stretch intensity. The farther away from the midline, the greater the stretch.