Contributions
Abstract: P920
Type: Poster
Abstract Category: Clinical aspects of MS - 8 Clinical assessment tools
Background: An early identification of postural control deterioration in patients with multiple sclerosis (MS) is crucial to implement more aggressive therapeutic interventions, especially in patients with mild neurological impairment. However, clinical postural control assessment is mostly based on subjective scales or standard neurological examinations, which show poor sensitivity to identify early impairment. The purpose of this pilot-study was to assess the validity and reliability of a tandem stance balance test based on the use of smartphone-accelerometry to assess postural control in minimally-impaired MS patients.
Methods: Ten patients (7 women, 3 men; Median age = 43.0 yrs) with relapsing-remitting MS (EDSS < 3) performed the balance test (six trials of 70 s) twice, spaced 2 weeks apart. A force platform (Model 9286AA; Kistler, Switzerland) and a smartphone (Model Huawei G8; Huawei, China) were used to measure the oscillation of the centre of pressure (COP) and pelvis acceleration respectively. Pearson correlations were used to assess concurrent-validity between COP sway and pelvis-acceleration. Typical error (TE) and intraclass-correlation coefficient (ICC3,1) were used to assess the absolute and relative reliability of the smartphone acceleration scores.
Results: Correlational analyses showed moderate to high significant correlation between acceleration scores and COP oscillations (0.67 < r < 0.84). In addition, smartphone scores showed moderate absolute (15.2% < TE < 18.4%) and high relative (0.79 < ICC < 0.92) test-retest reliability.
Conclusions: Based on correlational and reliability analyses, smartphone-accelerometry seems a valid, reliable and sensitive tool to assess postural control in patients with relapsing-remitting MS. Therefore, it may be useful to detect early postural control impairment in patients with MS in clinical setting.
Disclosure:
Barbado, D.: nothing to disclose.
Gomez-Illan, R.: nothing to disclose.
Moreno, P.: nothing to disclose.
Valero-Conesa, G.: nothing to disclose.
Carpena-Juan, C.: nothing to disclose.
Sempere, AP.: nothing to disclose.
Reina, R.: nothing to disclose.
Vera-Garcia, FJ.: nothing to disclose.
Abstract: P920
Type: Poster
Abstract Category: Clinical aspects of MS - 8 Clinical assessment tools
Background: An early identification of postural control deterioration in patients with multiple sclerosis (MS) is crucial to implement more aggressive therapeutic interventions, especially in patients with mild neurological impairment. However, clinical postural control assessment is mostly based on subjective scales or standard neurological examinations, which show poor sensitivity to identify early impairment. The purpose of this pilot-study was to assess the validity and reliability of a tandem stance balance test based on the use of smartphone-accelerometry to assess postural control in minimally-impaired MS patients.
Methods: Ten patients (7 women, 3 men; Median age = 43.0 yrs) with relapsing-remitting MS (EDSS < 3) performed the balance test (six trials of 70 s) twice, spaced 2 weeks apart. A force platform (Model 9286AA; Kistler, Switzerland) and a smartphone (Model Huawei G8; Huawei, China) were used to measure the oscillation of the centre of pressure (COP) and pelvis acceleration respectively. Pearson correlations were used to assess concurrent-validity between COP sway and pelvis-acceleration. Typical error (TE) and intraclass-correlation coefficient (ICC3,1) were used to assess the absolute and relative reliability of the smartphone acceleration scores.
Results: Correlational analyses showed moderate to high significant correlation between acceleration scores and COP oscillations (0.67 < r < 0.84). In addition, smartphone scores showed moderate absolute (15.2% < TE < 18.4%) and high relative (0.79 < ICC < 0.92) test-retest reliability.
Conclusions: Based on correlational and reliability analyses, smartphone-accelerometry seems a valid, reliable and sensitive tool to assess postural control in patients with relapsing-remitting MS. Therefore, it may be useful to detect early postural control impairment in patients with MS in clinical setting.
Disclosure:
Barbado, D.: nothing to disclose.
Gomez-Illan, R.: nothing to disclose.
Moreno, P.: nothing to disclose.
Valero-Conesa, G.: nothing to disclose.
Carpena-Juan, C.: nothing to disclose.
Sempere, AP.: nothing to disclose.
Reina, R.: nothing to disclose.
Vera-Garcia, FJ.: nothing to disclose.