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Heat sensitive persons with multiple sclerosis are more tolerant to resistance exercise than to endurance exercise.
MedLine Citation:
PMID:  23166119     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: Heat sensitivity (HS) is reported by 58% of all persons with multiple sclerosis (MS), causing symptom exacerbation possibly limiting exercise participation. OBJECTIVE: The purpose of this study was to test the hypotheses that (a) a relationship between exercise-induced changes in core-temperature (C(temp)) and changes in symptom intensity exists, and (b) that resistance exercise (RE), as a consequence of a minor increase in core temperature, will induce a lesser worsening of symptoms than endurance exercise (EE) in HS persons with MS. METHODS: On two separate days, 16 HS persons with MS randomly completed a session of RE and EE, or EE and RE, respectively. Testing was conducted pre, post and one hour after exercise and consisted of Visual Analogue Scale (VAS) scoring (fatigue, spasticity, pain, strength, walking and balance), the 5-time sit-to-stand (5STS), the Multiple Sclerosis Functional Composite (MSFC) and Body Sway. Composite scores describing average subjective symptom intensity (SI) and total number of symptoms (SN) were calculated from VAS scores. RESULTS: C(temp) (0.9±0.4°C vs 0.3±0.1°C, p<0.001), SI (1.7±1.9 cm vs 0.6±1.5 cm, p<0.05) and SN (1.6±1.9 vs 0.6±2.1, p<0.05) increased significantly more during EE than RE. Changes in C(temp) correlated to changes in SI (r=0.50, p<0.01). No differences were observed in 5STS, MSFC and Body Sway scores after EE when compared to RE. CONCLUSION: An exercise-induced increase in C(temp) is associated with increased number and severity of perceived symptoms in HS persons with MS. Based on these findings it is expected that HS persons with MS do tolerate RE better than EE.
Authors:
Anders G Skjerbæk; Andreas B Møller; Ellen Jensen; Kristian Vissing; Henrik Sørensen; Lars Nybo; Egon Stenager; Ulrik Dalgas
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-19
Journal Detail:
Title:  Multiple sclerosis (Houndmills, Basingstoke, England)     Volume:  -     ISSN:  1477-0970     ISO Abbreviation:  Mult. Scler.     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9509185     Medline TA:  Mult Scler     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
The MS Hospitals in Ry and Haslev, Denmark.
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