Stabilization of postural sway on a sideward slope using cuboid support insoles.
Yuichi Takata, Ryosuke Fukaki, Shinji Matsuoka and 3 others
PMID 34219956WHAT IT FOUND
On a 15° side slope, cuboid-support insoles had a shorter path traced by the body's balance point during standing than no insoles and the other tested insoles, in people with flat and normal feet.
The area covered by that movement did not change.
Key findings
01On the tested side slope, BMZ insoles produced significantly lower total sway path than Superfeet and no insoles.
02The total sway path differed by insole type in both flat-footed and normal-footed individuals.
03The body sway area did not significantly differ among the insole conditions.
STILL TO COME
How it was doneWhat they foundWhat it means for PTs
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What it does not show
Only 20 flat-footed and 20 normal-footed adults aged 20 to 23 years were studied, and the paper says they had no pain or disability, so it does not show effects in people with pain or disability. The study measured 30 seconds of standing on one 15° side slope with one foot position, not walking or other standing positions. Only sway path and sway area were measured; lower limb joint angles were not assessed. The paper does not report randomisation, blinding, or the order in which the insole conditions were tested. The insole effect was seen only for total sway path; sway area did not change.
Declared interests
The authors declared no conflicts of interest.
The easy way to misread this
Do not conclude that cuboid insoles prevent falls or improve clinical balance. The study measured 30 seconds of standing in 20 flat-footed and 20 normal-footed adults aged 20 to 23 years, and only sway path changed; sway area did not.