Measurement of deep muscle temperature in ischemic limbs

1980 ◽  
Vol 139 (4) ◽  
pp. 503-507 ◽  
Author(s):  
Donald B. Williams ◽  
Richard C. Karl
Keyword(s):  
Muscle Temperature ◽  
Deep Muscle

Insulative power of body fat on deep muscle temperatures and isometric endurance

1975 ◽  
Vol 39 (4) ◽  
pp. 639-642 ◽  
Author(s):  
J. S. Petrofsky ◽  
A. R. Lind
Keyword(s):  
Body Fat ◽  
Bath Temperature ◽  
Fat Content ◽  
Water Bath ◽  
Muscle Temperature ◽  
Isometric Handgrip ◽  
Isometric Endurance ◽  
Body Fat Content ◽  
Deep Muscle ◽  
The Difference

Four male subjects were examined to assess the relationship of body fat content to deep muscle temperature and the endurance of a fatiguing isometric handgrip contraction at a tension set at 40% MVC. Muscle temperature was altered by the immersion of the forearm in water at temperatures varying from 7.5 to 40 degrees C. In all subjects, there was a water bath temperature above and below which isometric endurance decreased markedly; the difference among individuals was solely accounted for by the individual's body fat content. Thus, subjects with higher body fat content required lower bath temperatures to cool the forearm musculature to its optimum temperature, which we found to always be approximately 27 degrees C measured 2 cm perpendicularly to the skin in the belly of the brachioradialis muscle. Further, in one subject, we found that a reduction in this subject's body fat content resulted in a corresponding increase in the water bath temperature necessary to cool his muscles to their optimum isometric performance. The data demonstrate the striking insulative power of the thin layer of fat around the forearm in man in protecting shell tissues from cold exposure.

The Relationship of Body Fat Content to Deep Muscle Temperature and Isometric Endurance in Man

1975 ◽  
Vol 48 (5) ◽  
pp. 405-412 ◽  
Author(s):  
J. S. Petrofsky ◽  
A. R. Lind
Keyword(s):  
Body Fat ◽  
Fat Content ◽  
Muscle Temperature ◽  
Isometric Endurance ◽  
Hand Grip ◽  
Body Fat Content ◽  
Before And After ◽  
Deep Muscle ◽  
Relationship Of ◽  
The Relationship

1. The relationship between body fat content, isometric endurance and deep muscle temperature was assessed in eight male and female volunteers trained to static effort. 2. Muscle temperature, measured in the belly of the brachioradialis muscle, was found to be directly related to the subjects' body fat content. 3. Associated with a reduction in body fat content, there was a marked decrease in deep muscle temperature and an increase in isometric endurance of the hand-grip muscles; no change in strength was noted. 4. Conversely, an increase in body fat content resulted in an increase in deep muscle temperature and a decrease in isometric endurance. 5. When muscle temperature was stabilized before and after weight loss by immersing the forearm in water at 37°C, a reduction in body fat no longer influenced endurance. 6. It was concluded that the change in isometric endurance associated with either loss or gain of weight can be accounted for entirely by the changes in muscle temperature.

Muscle temperature is least altered during total sleep deprivation in rats

2021 ◽  
pp. 102910
Author(s):  
Binney Sharma ◽  
Trina Sengupta ◽  
Lal Chandra Vishwakarma ◽  
Nasreen Akhtar ◽  
Hruda Nanda Mallick
Keyword(s):  
Sleep Deprivation ◽  
Muscle Temperature ◽  
Total Sleep Deprivation

How I Manage Deep Muscle Bruises

1983 ◽  
Vol 11 (6) ◽  
pp. 123-127
Author(s):  
William A. Grana ◽  
Eileen Schelberg-Karnes
Keyword(s):  
Deep Muscle

Postexercise hypotension causes a prolonged perturbation in esophageal and active muscle temperature recovery

2006 ◽  
Vol 291 (3) ◽  
pp. R580-R588 ◽  
Author(s):  
Glen P. Kenny ◽  
Ollie Jay ◽  
Wytek M. Zaleski ◽  
Mark L. Reardon ◽  
Ronald J. Sigal ◽  
...  
Keyword(s):  
Temperature Profile ◽  
Recovery Period ◽  
Peak Oxygen Consumption ◽  
Muscle Temperature ◽  
Triceps Brachii ◽  
Active Muscle ◽  
Bilateral Knee ◽  
Collateral Artery ◽  
Postexercise Recovery ◽  
Exercise Induced

We examined the effect of two levels of exercise-induced hypotension on esophageal (Tes) and active and nonactive muscle temperatures during and following exercise. Seven males performed an incremental isotonic test on a Kin-Com isokinetic apparatus to determine their peak oxygen consumption during bilateral knee extensions (V̇o2sp). This was followed on separate days by 15-min of isolated bilateral knee extensions at moderate (60% V̇o2sp) (MEI) and high (80% V̇o2sp) (HEI) exercise intensities, followed by 90 min of recovery. Muscle temperature was measured with an intramuscular probe inserted in the left vastus medialis (Tvm) and triceps brachii (Ttb) muscles under ultrasound guidance. The deepest sensor (tip) was located ∼10 mm from the femur and deep femoral artery and from the superior ulnar collateral artery and humerus for the Tvm and Ttb, respectively. Additional sensors were located 15 and 30 mm from the tip with an additional sensor located at 45 mm for the Tvm measurements only. Following exercise, mean arterial pressure (MAP) remained significantly below preexercise rest for the initial 60 min of recovery after MEI and for the duration of the postexercise recovery period after HEI ( P ≤ 0.05). After HEI, significantly greater elevations from preexercise rest were recorded for Tes and all muscle temperatures paralleled a greater decrease in MAP compared with MEI (all P ≤ 0.05). By the end of 90-min postexercise recovery, MAP, Tes, and all muscle temperatures remained significantly greater after HEI than MEI. Furthermore, a significantly shallower muscle temperature profile across Tvm, relative to preexercise rest, was observed at the end of exercise for both HEI and MEI ( P ≤ 0.05), and for 30 min of recovery for MEI and throughout 90 min of recovery for HEI. No significant differences in muscle temperature profile were observed for Ttb. Thus we conclude that the increase in the postexercise hypotensive response, induced by exercise of increasing intensity, was paralleled by an increase in the magnitude and recovery time of the postexercise esophageal and active muscle temperatures.

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