Relationship between characteristics of segmental phase angles and walking ability in patients with hemiplegia after stroke and traumatic brain injury in a convalescent rehabilitation ward.
Ryo Tsujinaka, Takahiro Yoshitani, Hikari Suzuki and 3 others
PMID 39621016WHAT IT FOUND
In patients with hemiplegia, higher trunk phase angle at admission was associated with better walking ability at discharge, independent of paralysis severity and nutrition.
Limb phase angles did not show this association.
Key findings
01Trunk phase angle, age, and motor recovery stage were significantly associated with walking ability at discharge.
02Affected and unaffected limb phase angles were not significantly associated with walking ability.
03Patients who walked independently had significantly higher trunk, affected limb, and unaffected limb phase angles than dependent walkers.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTsWhat it means for SLPs
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
Small sample size (47 patients) from a single hospital limits generalizability. Phase angle measurements were taken in either sitting or supine position, which can affect impedance readings. Patients received up to three hours of daily rehabilitation, including muscle strengthening and fluid management, which may have influenced phase angle values. The study did not account for cognitive dysfunction, which may confound walking ability. Edema in affected limbs may artificially lower phase angle values, making them reflect fluid status rather than muscle mass alone. Observational design cannot establish causation between trunk phase angle and walking ability.
Declared interests
The authors declared no conflicts of interest. The study received ethical approval from Izumisano Yujinkai Hospital. No external funding source was specified for the research itself, though the bioimpedance device manufacturer was named in methods.
The easy way to misread this
Do not interpret the association between trunk phase angle and walking ability as evidence that improving trunk muscle mass will cause better walking. This observational study measured phase angle at admission and walking at discharge, but cannot prove that trunk phase angle is a causal factor rather than a marker of overall health or rehabilitation intensity.