scholarly journals Dysuria and medical events related to heat stress and muscle injury among male Nicaraguan sugar cane workers

2020 ◽  
Vol 2020 (1) ◽  
Author(s):  
T. L. Stallings ◽  
A. Riefkohl Lisci ◽  
N. McCray ◽  
D. E. Weiner ◽  
J. S. Kaufman ◽  
...  
Keyword(s):  
Heat Stress ◽  
Sugar Cane ◽  
Muscle Injury

EFFECTS OF MUSCLE INJURY ON THERMOREGULATION DURING EXERCISE-HEAT STRESS.

1998 ◽  
Vol 30 (Supplement) ◽  
pp. 282
Author(s):  
S. J. Montain ◽  
W. A. Latzka ◽  
K. Spears ◽  
M. N. Sawka
Keyword(s):  
Heat Stress ◽  
Muscle Injury

scholarly journals Impact of muscle injury and accompanying inflammatory response on thermoregulation during exercise in the heat

2000 ◽  
Vol 89 (3) ◽  
pp. 1123-1130 ◽  
Author(s):  
Scott J. Montain ◽  
William A. Latzka ◽  
Michael N. Sawka
Keyword(s):  
Creatine Kinase ◽  
Heat Stress ◽  
Core Temperature ◽  
Interleukin 6 ◽  
Muscle Injury ◽  
Treadmill Exercise ◽  
Inflammatory Responses ◽  
Thermal Strain ◽  
Upper Body ◽  
Body Core Temperature

This study examined whether muscle injury and the accompanying inflammatory responses alter thermoregulation during subsequent exercise-heat stress. Sixteen subjects performed 50 min of treadmill exercise (45–50% maximal O2 consumption) in a hot room (40°C, 20% relative humidity) before and at select times after eccentric upper body (UBE) and/or eccentric lower body (LBE) exercise. In experiment 1, eight subjects performed treadmill exercise before and 6, 25, and 30 h after UBE and then 6, 25, and 30 h after LBE. In experiment 2, eight subjects performed treadmill exercise before and 2, 7, and 26 h after LBE only. UBE and LBE produced marked soreness and significantly elevated creatine kinase levels ( P < 0.05), but only LBE increased ( P < 0.05) interleukin-6 levels. In experiment 1, core temperatures before and during exercise-heat stress were similar for control and after UBE, but some evidence for higher core temperatures was found after LBE. In experiment 2, core temperatures during exercise-heat stress were 0.2–0.3°C ( P < 0.05) above control values at 2 and 7 h after LBE. The added thermal strain after LBE ( P < 0.05) was associated with higher metabolic rate ( r = 0.70 and 0.68 at 2 and 6–7 h, respectively) but was not related ( P > 0.05) to muscle soreness ( r = 0.47 at 6–7 h), plasma interleukin-6 ( r = 0.35 at 6–7 h), or peak creatine kinase levels ( r = 0.22). Local sweating responses (threshold core temperature and slope) were not altered by UBE or LBE. The results suggest that profuse muscle injury can increase body core temperature during exercise-heat stress and that the added heat storage cannot be attributed solely to increased heat production.

scholarly journals Dysuria, heat stress, and muscle injury among Nicaraguan sugarcane workers at risk for Mesoamerican nephropathy

2021 ◽  
Author(s):  
Tiffany L Stallings ◽  
Alejandro Riefkohl Lisci ◽  
Nathan L McCray ◽  
Daniel E Weiner ◽  
James S Kaufman ◽  
...  
Keyword(s):  
At Risk ◽  
Heat Stress ◽  
Muscle Injury ◽  
Mesoamerican Nephropathy

Heat Stress, Dehydration and Cardiovascular Responses in Sugar Cane Cutters in Brazil

2017 ◽  
Vol 49 (5S) ◽  
pp. 107
Author(s):  
Fabiano T. Amorim ◽  
Flávio C. Magalhães ◽  
Caíque Diniz ◽  
Christiano M. Moreira ◽  
Elisa Shibuya ◽  
...  
Keyword(s):  
Heat Stress ◽  
Sugar Cane ◽  
Cardiovascular Responses

Reduction of Skeletal Muscle Injury in Composite Tissue Allotransplantation by Heat Stress Preconditioning

2004 ◽  
Vol 114 (7) ◽  
pp. 1832-1841 ◽  
Author(s):  
Steffen Baumeister ◽  
Nina Ofer ◽  
Christian Kleist ◽  
Peter Terne ◽  
Gerhard Opelz ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Heat Stress ◽  
Muscle Injury ◽  
Composite Tissue Allotransplantation ◽  
Skeletal Muscle Injury ◽  
Composite Tissue

scholarly journals Impact of different temperature stimuli on the expression of myosin heavy chain isoforms during recovery from bupivacaine-induced muscle injury in rats

2019 ◽  
Vol 127 (1) ◽  
pp. 178-189
Author(s):  
Tsubasa Shibaguchi ◽  
Mizuki Hoshi ◽  
Toshinori Yoshihara ◽  
Hisashi Naito ◽  
Katsumasa Goto ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Heat Stress ◽  
Myosin Heavy Chain ◽  
Muscle Mass ◽  
Heavy Chain ◽  
Muscle Injury ◽  
Heat Exposure ◽  
Control Level ◽  
Male Wistar Rats ◽  
The Impact

Limited information exists regarding the impact of different temperature stimuli on myosin heavy chain (MyHC) expression in skeletal muscle during recovery from injury. Therefore, this experiment investigated the impact of both cold and heat exposure on the MyHC isoform profile in the rat soleus during recovery from injury. Male Wistar rats were randomly divided into control, bupivacaine-injected (BPVC), BPVC with icing, and BPVC with heat stress groups. Muscle injury was induced by intramuscular injection of bupivacaine into soleus muscles of male Wistar rats. Icing treatment (0°C for 20 min) was performed immediately after the injury. Intermittent heat stress (42°C for 30 min on alternating days) was carried out during 2–14 days after bupivacaine injection. In response to injury, a transient increase in developmental, IId/x, and IIb MyHC isoforms, as well as various types of hybrid fibers, followed by the recovery of the MyHC profile toward the control level, was noted in the regeneration of the soleus. The restoration of the MyHC profile in the regenerating muscle at whole-muscle and individual myofiber levels was partially delayed by icing but facilitated by heat stress. In addition, the application of repeated heat stress promoted the recovery of soleus muscle mass toward the control level following injury. We conclude that compared with acute and immediate cold (icing) treatment, chronic and repeated heat stress may be a more appropriate treatment for the enhancement of both normalization of the MyHC profile and restoration of muscle mass following injury. NEW & NOTEWORTHY Cold exposure (icing), but not heat exposure, has been well accepted as a first-aid treatment for accidental and/or sports-related injuries. However, recent evidence suggests the negative impact of icing treatment on skeletal muscle regeneration following injury. Here, we demonstrated that acute/immediate icing treatment delayed the restoration of the myosin heavy chain (MyHC) profile, but intermittent hyperthermia, repeated for several days, facilitated the recovery of both muscle mass and the MyHC profile in the regeneration of skeletal muscle following injury.

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