Effects of Sandfly Fever on Isometric Muscular Strength, Endurance, and Recovery

Ea, Alluisi; Wr, Beisel; Ls, Caldwell

doi:10.1080/00222895.1980.10735200

Cited by 10 publications

(6 citation statements)

References 12 publications

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“…neuromuscular physiology and function may be compromised during infection and fever in the absence of disease-specific symptoms or pathology within the neuromuscular system. Thus, in the early course of a prototype experimental viral infection (sand fly fever), a decrease in speed and coordination when performing motor skills at submaximal force has been demonstrated, which is quickly reversed by cyclooxygenase inhibitors (2). Furthermore, in the early phase of some other uncomplicated viral infections (influenza, echovirus infection and mumps), a reduced safety margin of the neuromuscular transmission in the motor end-plate of skeletal muscles has been recorded (30).…”

Section: Effects On the Nervous Systemmentioning

confidence: 99%

Acute Infection: Metabolic Responses, Effects on Performance, Interaction with Exercise, and Myocarditis

Friman¹,

Ilbäck²

1998

Int J Sports Med

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Acute infections are associated with multiple host responses that are triggered by cytokines and correlated to fever, malaise and anorexia. The purpose of this systemic acute phase host reaction ("the acute phase response") is to mobilize nutrients for the increased needs of the activated immune system, as well as for energy production and tissue repair. Important effects include wasting of striated muscle, degradation of performance-related metabolic enzymes and, concomitantly, deteriorated central circulatory function. These effects result in decreased muscle and aerobic performance, the full recovery of which may require several weeks to months following week-long febrile infections. Also during early infection and fever, prior to the development of muscle wasting, performance is compromised by other mechanisms. Strenuous exercise may be hazardous during ongoing infection and fever and should always be avoided. In infection, muscle wasting seems to be less pronounced in the conditioned (trained) host than in the unconditioned host. Acute myocarditis most often has a viral etiology but bacteria and their toxins may also be the cause. Furthermore, slow-growing bacteria, previously difficult to diagnose, have emerged as potential "new" causes of subacute to chronic myocarditis. Since myocarditis may or may not be associated with fever, malaise, or catarrhal symptoms, athletes should be taught the symptoms suggestive of myocarditis. Whenever myocarditis is suspected exercise should be avoided.

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Section: Effects On the Nervous Systemmentioning

confidence: 99%

Acute Infection: Metabolic Responses, Effects on Performance, Interaction with Exercise, and Myocarditis

Friman¹,

Ilbäck²

1998

Int J Sports Med

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“…In one study, for example, a reduced safety margin of the neuromuscular transmission in the motor end‐plate was noted in the early phase of uncomplicated influenza, echovirus infection and mumps 21 . In addition, in the early course of a prototype experimental viral infection (sandfly fever), a decrease in speed and coordination in the performance of motor skills at submaximal force was observed, which could be quickly reversed by cyclo‐oxygenase inhibitors 22 . Although the pathogenesis of these changes has not been clarified, these results may have a bearing on sports in which coordination and precision are crucial.…”

Section: The Neuromuscular System In Infectionsmentioning

confidence: 99%

Infections and exercise in high‐performance athletes

Friman

Wesslén

2000

Immunol Cell Biol

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The elite athlete has a potentially increased sensitivity to respiratory infections, rendering protective measures particularly important. Some other infections that may appear in clusters in the sports setting, such as gastroenteritis, leptospirosis, herpes simplex and viral hepatitis, also require special precautionary attention. Strenuous exercise during ongoing infection and fever may be hazardous and should always be avoided. In addition, early symptoms of infection warrant caution until the nature and severity of the infection become apparent. Because myocarditis may or may not be accompanied by fever, malaise or catarrhal symptoms, athletes should be informed about the symptoms suggestive of this disease. Although sudden unexpected death resulting from myocarditis is rare, exercise should be avoided whenever myocarditis is suspected. Guidelines are suggested for the management and counselling of athletes suffering from infections, including recommendations on when to resume training. Acute febrile infections are associated with decreased performance resulting from muscle wasting, circulatory deregulation and impaired motor coordination, which require variable amounts of time to become normalized once the infection is over.

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“…Thus, depletion of resident islet macrophages in high‐fat‐fed transgenic mice with islet amyloid formation may reduce IL‐1β expression, improve β‐cell insulin secretion and restore glucose tolerance . Moreover, inhibition of IL‐1β ameliorates β‐cell dysfunction and glucose homoeostasis in individuals with T2DM . IL‐1 antagonism has also been shown to lower chronic inflammation and cortisol levels .…”

Section: Introductionmentioning

confidence: 99%

Anti‐inflammatory effects of exercise: role in diabetes and cardiovascular disease

Pedersen

2017

Eur J Clin Investigation

472

360

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Effects of Sandfly Fever on Isometric Muscular Strength, Endurance, and Recovery

Cited by 10 publications

References 12 publications

Acute Infection: Metabolic Responses, Effects on Performance, Interaction with Exercise, and Myocarditis

Acute Infection: Metabolic Responses, Effects on Performance, Interaction with Exercise, and Myocarditis

Infections and exercise in high‐performance athletes

Anti‐inflammatory effects of exercise: role in diabetes and cardiovascular disease

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