Key result
Therapeutic handling alters sit-to-stand movement smoothness, with after-effects strongly correlated to direct intervention effects.
Why the study?
Does therapeutic handling improve movement smoothness during sit-to-stand tasks in post-stroke subjects?
Does therapeutic handling improve movement smoothness during sit-to-stand tasks in post-stroke subjects?
Effect estimate: r = 0.85
p-value: p=< 0.01
Therapeutic handling alters movement smoothness during sit-to-stand tasks in post-stroke patients, and the variability in smoothness response may help identify recovery subtypes.
Therapeutic handling during sit-to-stand (STS) tasks in post-stroke subjects targets complex motor pattern modifications, however, its impact on movement smoothness and the subject-specific responses remains underexplored. This study aimed to examine the effects of therapeutic handling on the movement smoothness during STS in post-stroke subjects, identifying recovery subtypes based on immediate changes in smoothness metrics and longitudinal motor functional improvements. Thirty-eight inpatient post-stroke subjects and five healthy controls participated in standardized STS, with and without therapeutic handling. Joint kinematics were recorded using a 3D mocap system, and the spectral arc length measure (SPARC) of joint angular velocity was analyzed to assess trajectory quality. Fifteen patients were re-measured after one month. Therapeutic handling significantly altered movement smoothness (direct effect). Trajectory smoothness after therapeutic handling (after-effect) was significantly correlated with the direct effect (r = 0.85, p < 0.01). The SPARC Delta, discrepancy between the direct and after-effect, negatively contributed to the improvement in FMA over time (p = 0.02). This emphasizes the importance of investigating subtypes of recovery based on the variability of smoothness response to therapeutic handling.
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Yamasaki et al. (2025) studied Post-stroke (n=43). Therapeutic handling vs. Without therapeutic handling was evaluated on Movement smoothness (spectral arc length measure of joint angular velocity) (r = 0.85, p=< 0.01). Therapeutic handling significantly altered movement smoothness during sit-to-stand tasks, and the after-effect was significantly correlated with the direct effect (r = 0.85, p < 0.01).
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