Rare Diseases Symptoms Automatic Extraction

Are repeated single-limb heel raises and manual muscle testing associated with peak plantar-flexor force in people with inclusion body myositis?

[inclusion body myositis]

Repeated heel raises have been proposed as a method of ankle plantar-flexor strength testing that circumvents the limitations of manual muscle testing (MMT).The study objective was to examine the relationships among ankle plantar-flexion isometric maximum voluntary contraction (MVC), repeated single-limb heel raises (SLHRs), and MMT in people with myositis.This was a cross-sectional study with a between-group design. The ability to complete 1 SLHR determined group assignment (SLHR group, n=24; no-SLHR group, n=19).Forty-three participants with myositis (13 women; median age=64.9 years) participated. Outcome measures included MVC, predicted MVC, Kendall MMT, and Daniels-Worthingham MMT.The Kendall MMT was unable to detect significant ankle plantar-flexor weakness established by quantitative methods and was unable to discriminate between participants who could and those who could not perform the SLHR task. Ankle plantar-flexion MVC was not associated with the number of heel-raise repetitions in the SLHR group (pseudo R(2)=.13). No significant relationship was observed between MVC values and MMT grades in the SLHR and no-SLHR groups. However, a moderate relationship between MVC values and MMT grades was evident in a combined-group analysis (ρ=.50-.67).The lower half of both MMT grading scales was not represented in the study despite the profound weakness of the participants.Both Kendall MMT and Daniels-Worthingham MMT had limited utility in the assessment of ankle plantar-flexor strength. Repeated SLHRs should not be used as a proxy measure of ankle plantar-flexion MVC in people with myositis.

Diseases presenting "weakness" symptom

  • achondroplasia
  • adrenomyeloneuropathy
  • alexander disease
  • aniridia
  • aromatase deficiency
  • coats disease
  • congenital toxoplasmosis
  • epidermolysis bullosa simplex
  • esophageal adenocarcinoma
  • familial hypocalciuric hypercalcemia
  • familial mediterranean fever
  • focal myositis
  • gm1 gangliosidosis
  • hydrocephalus with stenosis of the aqueduct of sylvius
  • inclusion body myositis
  • locked-in syndrome
  • lymphangioleiomyomatosis
  • malignant atrophic papulosis
  • neuralgic amyotrophy
  • pendred syndrome
  • pleomorphic liposarcoma
  • pyomyositis
  • pyruvate dehydrogenase deficiency
  • sneddon syndrome
  • systemic capillary leak syndrome
  • thoracic outlet syndrome
  • triple a syndrome
  • typhoid
  • von hippel-lindau disease
  • waldenström macroglobulinemia
  • werner syndrome
  • x-linked adrenoleukodystrophy

This symptom has already been validated