Chronic fa­tigue flares up with mild ex­er­cise

The Sun (Malaysia) - - LIFESTYLE -

AN AMER­I­CAN study has found that chronic fa­tigue syn­drome (CFS) symp­toms can flare up fol­low­ing mild to mod­er­ate strain to mus­cles and nerves.

Re­searchers from the Univer­sity of Alabama at Birm­ing­ham and Johns Hop­kins Univer­sity in Bal­ti­more, in the US, stud­ied 80 peo­ple aged be­tween 16 and 55 years; 60 of whom were di­ag­nosed as CFS suf­fer­ers and the re­main­ing 20 as healthy in­di­vid­u­als.

The par­tic­i­pants were pe­ri­od­i­cally asked to eval­u­ate lev­els of fa­tigue, body pain, and the sever­ity of other symp­toms of the con­di­tion, such as light­head­ed­ness, con­cen­tra­tion dif­fi­cul­ties and headaches.

Par­tic­i­pants were asked to lie on their backs and re­port their symp­toms ev­ery five min­utes dur­ing a 15-minute pe­riod of pas­sive supine straight-leg raise ex­er­cises – rais­ing and hold­ing one of the par­tic­i­pant’s legs to cre­ate a slight level of mus­cle and nerve strain.

Those suf­fer­ing from CFS re­ported sig­nif­i­cantly in­creased body pain and con­cen­tra­tion dif­fi­cul­ties dur­ing the test.

Af­ter 24 hours, they re­ported greater in­ten­sity of their symp­toms in gen­eral.

The re­searchers con­cluded that cer­tain types of ex­er­cise and day-to-day ac­tiv­i­ties could trig­ger flare-ups of CFS.

CFS has no known cause or treat­ment. Symp­toms in­clude ex­treme fa­tigue, headaches, con­cen­tra­tion dif­fi­cul­ties, mus­cle pain, mem­ory trou­ble and sleep prob­lems.

CFS is es­ti­mated to af­fect around 17 mil­lion peo­ple world­wide.

Amer­i­can re­search, pub­lished in Fe­bru­ary 2015 in Sci­ence Ad­vances, de­fined the con­di­tion as “bi­o­log­i­cal rather than psy­cho­log­i­cal”, af­ter dis­cov­er­ing biomark­ers – or ‘cy­tokines’ – in the blood of CFS pa­tients dur­ing the first three years of ill­ness.

Th­ese lat­est con­clu­sions, pub­lished in PLoS ONE, sug­gest that mus­cle and nerve strain can cause CFS symp­toms to in­ten­sify for up to 24 hours. – AFPRe­laxnews

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