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Sense Of Effort Associated With Exercise In The Chronic Fatigue Syndrome, Karen E. Wallman
Sense Of Effort Associated With Exercise In The Chronic Fatigue Syndrome, Karen E. Wallman
Theses : Honours
Investigations into the mediators of effort sensation have indicated that central mechanisms related to corollary discharges may be responsible for an increased sense of effort during fatiguing isometric exercise. The role for central mediators for sense of effort have been objectively demonstrated through use of contralateral limb matching tasks. Subjects diagnosed with chronic fatigue syndrome (CFS) often report prevalent fatigue associated with a greater sense of effort when involved in exercise. This study employed a fatiguing contralateral limb-matching task in order to determine if CFS subjects (n == 6) experienced an altered sense of effort associated with the task when …
Central Fatigue In Chronic Fatigue Syndrome, Peter A. J. Hope
Central Fatigue In Chronic Fatigue Syndrome, Peter A. J. Hope
Theses : Honours
Fatigue associated with activity is a normal response, seeking to prevent damage or conserve energy. Some individuals show heightened fatigue responses with no distinct aetiology. In chronic fatigue syndrome (CFS), peripheral fatigue mechanisms display no apparent abnormalities, indicating some central mechanism. Transcranial magnetic stimulation (TMS) was used to compare force, perceived exertion, electromyogram response, motor evoked potentials (MEP) and silent periods (SP) following stimulation in normal and chronic fatigue groups. Participants (n=l2) were physically matched and performed a sustained sub-maximal (20% of MVC) isometric contraction of the elbow flexors. There were no significant differences (p < 0.05) in elbow flexor strength or time to reach fatigue. CFS participants showed a significant difference in perception of effort at outset. Differences were also noted in MEP amplitude and SP duration (p
Eccentrically Induced Skeletal Muscle Damage In Patients With Chronic Fatigue Syndrome (Cfs), With Reference To Overtrained Athletes, David L. Wright
Eccentrically Induced Skeletal Muscle Damage In Patients With Chronic Fatigue Syndrome (Cfs), With Reference To Overtrained Athletes, David L. Wright
Theses : Honours
Chronic fatigue syndrome (CFS) and Overtraining syndrome (OTS) are separate, complex conditions which have so many similar debilitating effects that it has led some researchers to conclude that OTS is a sub-condition of CFS. The purpose of this research was to compare the force and damage-recovery characteristics of skeletal muscle in CFS patients and control normals, after a single damaging bout of eccentric contractions in the non-dominant forearm flexors. The subjects ( n = 25 ), a convenience sample were assigned to three groups; [I] CFS + eccentric damage (n = 8), [2] Control Damage (CD)+ eccentric damage (n = …