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Titolo:
Muscular effects in late polio
Autore:
Sunnerhagen, KS; Grimby, G;
Indirizzi:
Univ Gothenburg, Dept Rehabil Med, Gothenburg, Sweden Univ Gothenburg Gothenburg Sweden Dept Rehabil Med, Gothenburg, Sweden
Titolo Testata:
ACTA PHYSIOLOGICA SCANDINAVICA
fascicolo: 3, volume: 171, anno: 2001,
pagine: 335 - 340
SICI:
0001-6772(200103)171:3<335:MEILP>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
JUNCTION TRANSMISSION DEFECTS; 4-YEAR FOLLOW-UP; POSTPOLIO SYNDROME; PRIOR POLIOMYELITIS; MUSCLE-FIBERS; PARALYTIC POLIOMYELITIS; SKELETAL-MUSCLE; FATIGUE; SEQUELAE; INDIVIDUALS;
Keywords:
biopsy; EMG; endurance; fatigue; postpolio; skeletal muscle; spectroscopy;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
60
Recensione:
Indirizzi per estratti:
Indirizzo: Sunnerhagen, KS Sahlgrens Univ Hosp, Dept Rehabil Med, Guldhedsgatan 19, S-41345 Gothenburg, Sweden Sahlgrens Univ Hosp Guldhedsgatan 19 Gothenburg Sweden S-41345
Citazione:
K.S. Sunnerhagen e G. Grimby, "Muscular effects in late polio", ACT PHYSL S, 171(3), 2001, pp. 335-340

Abstract

New or increased muscular weakness, fatigue and muscle and joint pain withneuropathic electromyography (EMG) changes in a person with a confirmed history of polio constitute the cardinal symptoms of the post-polio syndrome. Unusual tiredness or fatigue is a common complaint in late polio subjects as is intolerance to cold. Fatigue in polio subjects can have several explanations: emotional fatigue, central nervous system fatigue, 'general' fatigue and/or neuromuscular fatigue. Some studies indicate central fatigue, butit is unclear how often and to which degree there will be a central muscular fatigue. Polio patients are known to be deconditioned (reduced function because of low activity level), and aerobic power is reduced. Defects in the neuromuscular transmission may be present but are not seen in all post-polio subjects with reduction in force and increased fatigability. The fatigue experienced by late polio patients is most likely an augmented peripheralmuscle fatigue. Possible explanations may be an imperfection in the sarcoplasmatic reticulum with altered calcium release mechanisms (activation) or in sliding filament function (contractile properties). This may be a secondary effect to the enlarged muscle fibres. However, the prolonged subjectivefeeling of fatigue reported despite unchanged maximal voluntary contraction (MVC) remains unexplained.

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Documento generato il 05/04/20 alle ore 19:23:04