The effect of visual field condition on kinetic in upper extremities and e.m.g in lower extremities while performing reaching in normal adults.
Hyekang Park, Youngeun Kang, Minah Yoo and 5 others
PMID 28210047WHAT IT FOUND
In healthy young adults, reaching speed was highest with both eyes open.
Shoulder joint angles and lower-limb muscle activity showed no reported difference across visual conditions.
Key findings
01Both eyes open gave the highest hand-segment speed during reaching; dominant-eye and non-dominant-eye conditions were not significantly different.
02Shoulder joint angles in flexion-extension, adduction-abduction and rotation did not significantly differ across visual field conditions.
03Tibialis anterior and gastrocnemius muscle activity in the lower limbs did not significantly differ across visual field conditions.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTs
Read the rest of this summary
You get three full summaries a month, free, and we do not ask for a card. Search, the TL;DRs and your library stay unlimited either way.
What it does not show
The participants were 24 healthy university students in their 20s, so the findings do not show what happens in stroke patients, older adults, or people with visual or motor impairment. The study did not test a treatment, so it cannot show that any therapy or visual restriction improves function. The paper does not clearly state a primary outcome among shoulder angle, speed, and muscle activity. The narrative results and Table 1 give slightly different values for some measures, so exact values should be read with care. Compensatory trunk motion was not analyzed. All subjects were right-handed, and only one target distance and direction were used. The muscle activity values had very wide reported spread.
Declared interests
The supplied text does not report funding or conflicts of interest.
The easy way to misread this
Do not read the faster speed with both eyes open as proof that covering one eye causes impairment. The study was done in 24 healthy young adults, did not test a treatment or patient group, and found no significant differences in shoulder angles or lower-limb muscle activity.