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Table 1 Examinations performed in the Extended LAST STRONG study

From: A 5-year natural history study in LAMA2-related muscular dystrophy and SELENON-related myopathy: the Extended LAST STRONG study

Outcome domain

Assessments

Age

Medical history

Past

Perinatal period, motor milestones

All

Current

Functional abilities, comorbidities, devices, treatments

All

Neurological examination and functional measurements

Muscle function

Muscle strength assessment (Medical Research Council, MRC)

≥ 5 years

Hand-Held dynamometry (HHD)

≥ 5 years

The Children’s Hospital of Philadelphia Infant Test of Neuromuscular Disorders (CHOP INTEND)

< 2 years

Hammersmith Infant Neurological Examinations (HINE)

< 2 years

Motor Function Measurement (MFM)-20/32

≥ 2 years

Graded and timed function tests; ambulant patients only

1. 30 s sit to stand, climb 4 stairs, rise from floor

2. 6-Minute Walk test (6MWT)

≥ 2 years

≥ 5 years

Functional Ambulation Classification (FAC)

≥ 5 years

Vignos and Brooke scale

≥ 2 years

Contractures

Goniometry

≥ 2 years

Other

Coordination, gait, reflexes, cranial and facial muscles, dysmorphic features

≥ 2 years

Imaging

Muscles

Quantitative muscle ultrasound

All

Quantitative muscle magnetic resonance imaging (MRI) of the lower extremities

≥ 10 years

Bone density

Dual-energy X-ray absorptiometry (DEXA)

≥ 2 years

X-ray of the hand

2–17 years

Respiratory assessment

Respiratory system

Spirometry (forced expiratory volume in the first second (FEV1), forced vital capacity (FVC), vital capacity (VC), peak cough flow (PCF))

≥ 5 years

Maximum Expiratory Pressure (MEP), Maximum Inspiratory Pressure (MIP), Sniff Nasal Inspiratory Pressure (SNIP)

≥ 5 years

Questionnaires

Activities and participation

ACTIVLIM

≥ 6 years

Impact on Participation and Autonomy (IPA)

≥ 18 years

Egen Klassifikation version 2 (EK2)

≥ 12 years

Borg Rating Scale of Perceived Exertion; prior to and after 6MWT (Borg RPE)

≥ 5 years

Fatigue

Checklist Individual Strength (CIS)

≥ 18 years

Pediatric Quality of Life Inventory (PedsQL) (Multidimensional Fatigue Scale; Child Self-report and/or parent proxy)

2 − 17 years

Pain

McGill pain questionnaire

≥ 12 years

Wong-Baker Faces Pain rating scale

≥ 2 years

Quality of life

Pediatric Quality of Life Inventory (PedsQL) (Generic Core Scale, Neuromuscular Module; Child Self-report and/or parent proxy)

2–17 years

Research and Development-36 (RAND-36)

≥ 18 years

Individualized Neuromuscular Quality of Life (INQoL)

≥ 18 years

Accelerometry

Accelerometry

Accelerometry using GENEActiv for eight consecutive days

≥ 2 years