id stringlengths 15 156 ⌀ | content stringlengths 1 234k ⌀ |
|---|---|
below_temperature_muscles_not_work/PMC2269891_58_0.txt | Help
Accessibility
Careers |
below_temperature_muscles_not_work/documentrepidrep1typ_2_5.txt | activity, which
should be reflected in V, (BBrBny, 1967), has been shown to acclimate in goldfish
(Johnston, 1979) but not in killifish (Sidell, Johnston, Moerland & Goldspink, 1983).
TPT 112 RT
0J, I 1 I I 1
5 15 25 5 15 25
Experimental temperature ("C)
Fig. 3. Mean values of time-to-peak tension (TPT) and half relax... |
below_temperature_muscles_not_work/japplphysiol01107200_61_0.txt | scite shows how a scientific paper has been cited by providing the context of the citation, a classification describing whether it supports, mentions, or contrasts the cited claim, and a label indicating in which section the citation was made. |
below_temperature_muscles_not_work/japplphysiol01107200_27_0.txt | Fig. 3.
Fig. 3.
Mean (±SE) (●) and individual muscle temperature profiles during resting (A), end-exercise (B), and at 60 min postexercise resting (C). Note: individual subjects are represented by different symbols, and these symbols are the same for each time period inA–C. § Significantly different from superficial mu... |
below_temperature_muscles_not_work/PMC2269891_6_0.txt | Oesophageal, arterial, skin and muscle temperatures
Commercially available thermistors were used to continuously monitor skin and oesophageal temperatures (MHC-40050-A, Ellab A/S, Rødovre, Denmark) and for muscle and vessel blood temperatures (Edslab, TD probe 94-030-2.5F). |
below_temperature_muscles_not_work/japplphysiol01107200_9_1.txt | tip (Table 1). The internal position of the temperature sensor relative to the skin surface was calculated based on the ratio of the known depth of the probe (radius r) from the skin surface measured by ultrasound imaging and the radius of the thigh (r sk). Thusr/r sk is the relative radius (8). Although it was not po... |
below_temperature_muscles_not_work/documentrepidrep1typ_8_0.txt | RENAUD, J. M. & STEVENS, E. D. (1981~). Effect of acclimation temperature and pH on contraction of frog
sartorius muscle. Am. J. Physiol. 240 (Reg. Znteg. comp Physiol. 9), R301-R309.
RENAUD, J. M. & STEVENS, E. D. (1981b). The interactive effects of temperature and pH on the isometric
contraction of toad sartorius mus... |
below_temperature_muscles_not_work/japplphysiol01107200_3_1.txt | , 2, 5,6, 19, 23-27), of which the study by Saltin et al. (25) seems to be the only one to examine changes in Tmu profile (i.e., Tmu measured at multiple depths). Although, these experiments were not designed to show the time course change in tissue temperature gradients, their measurement of individual intramuscular t... |
below_temperature_muscles_not_work/benefitsofextremetem_12_1.txt | �C). |
below_temperature_muscles_not_work/japplphysiol01107200_4_0.txt | There are no studies that have examined changes in Tmuduring the postexercise period. Several have reported postexercise Tmu response (1, 23, 25); however, none has specifically addressed these responses. In short, there remains a lack of information regarding the kinetics of heat exchange between muscle and the core o... |
below_temperature_muscles_not_work/documentrepidrep1typ_3_1.txt | can function is clearly affected by their
thermal regimes (Ushakov, 1964; Licht, 1964; Putnam & Bennett, 1982): muscles
from more thermophilic species lose contractile ability and undergo irreversible heat
damage at substantially higher temperatures than do those of more cryophilic animals.
In fish, actomyosin ATPases... |
below_temperature_muscles_not_work/PMC2269891_31_1.txt | in different hamstring muscles (biceps femoris, semitendinosus and semimembranosus), and one in the subcutaneous fat (≈5 mm under the skin) next to a thermistor probe placed in the rectus femoris (depth ≈3 cm). |
below_temperature_muscles_not_work/benefitsofextremetem_14_0.txt | Another strategy to cope with cold is to use fat to produce heat. Researchers in the US have shown repeated workouts in the cold increases the amount of brown fat in your body. Brown fat is known as “good fat” as it burns calories. |
below_temperature_muscles_not_work/japplphysiol01107200_9_0.txt | The temperature probe was a sterile Teflon-coated multisensor probe (model IT-17:3, Physitemp Instruments; thermal constant of 0.25 s). Each probe had three thermocouples: one positioned at the tip, one at 15 mm, and the third at 30 mm from the tip. The deepest temperature sensor (tip) was located ∼10 mm from the femur... |
below_temperature_muscles_not_work/documentrepidrep1typ_1_1.txt | 42, respectively. All these rates have a thermal dependence
similar to those of most other biological processes (i.e. Qlo=2-3, Precht,
Christophersen, Hensel & Larcher, 1973; Prosser, 1973).
In contrast, the temperature dependence of force exerted during isometric
contraction is substantially different from that of con... |
below_temperature_muscles_not_work/documentrepidrep1typ_7_5.txt | . In Insect Thennoregulation, (ed. B. Heinrich), pp. 19-44. New York: John Wiley & Sons.
344 A. F. BENNETT
KUHN, H. J., GOTH, K., DREXLER, B., BERBERICH, W. & ROEGG, J. C. (1979). lnvestigation of the temperature
dependence of the cross-bridge parameters for attachment, force generation and detachment as deduced from
m... |
below_temperature_muscles_not_work/PMC2269891_29_1.txt | kg due to fluid gain. |
below_temperature_muscles_not_work/documentrepidrep1typ_0_3.txt | might expect
to find adaptations which minimize the thermal dependence of muscle performance.
The influence of temperature on the mechanical performance of vertebrate skeletal
muscle is reviewed in this paper, first for one species of lizard and then for vertebrates
more generally. Adaptations of muscle performance to... |
below_temperature_muscles_not_work/japplphysiol01107200_56_0.txt | Copyright & Permissions
Copyright © 2003 the American Physiological Society |
below_temperature_muscles_not_work/PMC2269891_11_0.txt | Muscle mass
Muscle mass was determined by magnetic resonance imaging (MRI) performed on a Siemens 1.5 T MAGNETOM vision scanner (Siemens, Germany). For each subject, 30–33 parallel axial T1-weighted images (cross-sections) of the right thigh (i.e. from the anterior superior iliac spine to the patellar ligament) were ob... |
below_temperature_muscles_not_work/PMC2269891_32_1.txt | -extensor exercise. s.e.m. bars are not included for reasons of clarity (s.e.m. range 0.00-0.10 °C; mean s.e.m. values 0.04-0.07 °C for all muscle portions). B, the mean (±s.e.m.) increases (n = 5) in arterial and venous blood temperatures are given from start to end of the exercise. For comparison mean (±s.e.m.) quadr... |
below_temperature_muscles_not_work/PMC2269891_50_0.txt | Oxygen uptake of the thigh gradually increased throughout the exercise period. However, it did not reach a plateau value, although the work rate and thus energy turnover was in each individual above the aerobic capacity. To what extent this continuous elevation in oxygen uptake is due to (i) altered motor unit and fibr... |
below_temperature_muscles_not_work/PMC2269891_54_4.txt | Curtin NA, Woledge RC. Changes in crossbridge and non-crossbridge energetics during moderate fatigue of frog muscle fibres. The Journal of Physiology. 1993;468:543–555. [PMC free article] [PubMed] [Google Scholar]
Barcroft H, Edholm OG. The effect of temperature on blood flow and deep temperature in the human forearm.... |
below_temperature_muscles_not_work/japplphysiol01107200_13_0.txt | Subjects performed an incremental isotonic test (constant angular velocity, increases in force output) on the Kin-Com isokinetic apparatus to determine their V˙o 2 sp. The exercise consisted of bilateral, concentric knee extension over a range of 70° from perpendicular, with the subject sitting (hip angle between 90 an... |
below_temperature_muscles_not_work/benefitsofextremetem_5_0.txt | Hot workouts
The ideal body temperature is around 37⁰C. When you exercise, your muscles are very inefficient and only 25% of the energy is used for movement. The other 75% of the energy muscles produce is lost as heat, increasing the temperature of your body. If it exceeds 40⁰C, it can be dangereous, so your body tries... |
below_temperature_muscles_not_work/PMC2269891_47_1.txt | , 1988) as compared to the ∼72 kJ per mole of ATP used when ATP is resynthesised via oxidation (Curtin & Woledge, 1978). ATP resynthesis from the anaerobic usage of glycogen (glucose) appears to have an intermediate value for heat liberation compared to PCr breakdown and aerobic metabolism (i.e. ∼65 kJ per mole of ATP ... |
below_temperature_muscles_not_work/documentrepidrep1typ_8_1.txt | -71.
ROME, L. C. (1983). The effect of long-term exposure to different temperatures on the mechanical performance
of frog muscle. Physiol. Zool 56, 33-40.
SALTIN, B., GAGGE, A. P. & STOLWIJK, J. A. J. (1968). Muscle temperature duringsubmaximal exercise in man.
J. appl. Physiol. 25,679-688.
SEGAL, S. S. & FAULKNER, J.A... |
below_temperature_muscles_not_work/PMC2269891_52_0.txt | In conclusion, the total skeletal muscle heat production in humans performing intense work was accurately quantified during dynamic knee-extension exercise by summing: (a) heat storage in the contracting muscles, (b) heat removal to the body core by the circulation, and (c) heat release to the skin and environment. At ... |
below_temperature_muscles_not_work/japplphysiol01107200_47_0.txt | All Tmu values remained significantly elevated above baseline resting values at the end of recovery. That was paralleled by a significant increase in Tes of ∼0.3°C (P < 0.05). Aikas et al. (1) have shown a similar postexercise increase in Tmu of the previously active muscle, although Tes showed a rapid decrease to valu... |
below_temperature_muscles_not_work/benefitsofextremetem_0_1.txt | ipal Lecturer, Exercise Physiology, University of Hertfordshire |
below_temperature_muscles_not_work/documentrepidrep1typ_3_5.txt | apparent between muscle from anuran amphibians
and mammals (Bennett, 1984). Anuran muscle develops maximal P, at O°C;
mammalian peak P, usually occurs at 20°C. Maximal Po is maintained at lower
temperatures in anurans: Po of anuran muscle declines below approximately lS°C,
that of mammalian muscle always decreases bel... |
below_temperature_muscles_not_work/PMC2269891_48_3.txt | 207.9 221.0 197.9
Total energy turnover (J s−1)c 181.9 ± 13.6 197.2 ± 16.3 211.0 ± 17.4 216.0 ± 21.0 220.8 ± 20.4 228.1 ± 23.2 209.2 ± 15.3
Open in a separate window
Data represent mean rates for 30 s time intervals and the overall mean for 180 s. Measured data are depicted as means ±s.e.m. for 5 subjects. |
below_temperature_muscles_not_work/documentrepidrep1typ_5_2.txt | uxley & Simmons,
1977; Kuhn et al. 1979; Bressler, 198 1). Instantaneous stiffness is either thermally
independent or has a different thermal dependence from that of Po. Consequently, the
number of cross-bridges attached or a thermally-dependent bridge cycling does not
appear to account for the observed pattern. Bressl... |
below_temperature_muscles_not_work/japplphysiol01107200_12_2.txt | difference in water content between effluent and influent air and the flow rate. This value was normalized for the skin surface area under the capsule and expressed in milligrams per minute per centimeter squared. |
below_temperature_muscles_not_work/PMC2269891_47_2.txt | first 30 s of exercise, increasing to > 82 % after 60 s of exercise. PCr degradation and lactate accumulation in muscle were not assessed in this study; however, these parameters have been measured repeatedly in the same model with similar work rate and exercise regimen in other studies (Bangsbo et al. 1990; Sinclair ... |
below_temperature_muscles_not_work/PMC2269891_54_11.txt | 50–2455. [PubMed] [Google Scholar]
Kushmerick MJ, Larsen RE, Davies RE. The chemical energetics of muscle contraction. I. Activation heat, heat of shortening and ATP utilization for contraction. Proceedings of the Royal Society. 1969;B 174:293–313. [PubMed] [Google Scholar]
Lexell J, Henriksson-Larsén K, Sjöstrom M. Di... |
below_temperature_muscles_not_work/PMC2269891_10_0.txt | Data sampling
Muscle and blood temperatures as well as power output were recorded with a sampling frequency of 100 Hz. In addition to the thermistors in the blood vessels (femoral artery and vein) each of the muscle thermistors were connected via another custom-made interface and A/D converter to an IBM computer board.... |
below_temperature_muscles_not_work/japplphysiol01107200_40_1.txt | .3°C. Of particular importance was the observation that deep Tmu decreased during the early stages of exercise recovery to values equal to that of Tes. Subsequently, deep Tmu remained relatively unchanged from Tes for the duration of recovery. This supports the hypothesis that the postexercise recovery of core temperat... |
below_temperature_muscles_not_work/japplphysiol01107200_21_0.txt | RESULTS
Baseline Tes and T̄sk were 36.80 ± 0.30 and 31.66 ± 0.89°C, respectively. Resting Tmu was significantly lower than Tes (i.e., 36.14 ± 0.29, 35.86 ± 0.31, and 35.01 ± 0.33°C for Tmu 10, Tmu 25, and Tmu 40, respectively) (Fig. 1). It should be noted that the increase in muscle tissue temperature before the onset ... |
below_temperature_muscles_not_work/japplphysiol01107200_22_0.txt | Fig. 1.
Fig. 1.
Mean (±SE) muscle [temperature sensor located 10 mm (Tmu 10; □), 15 mm (Tmu 25; ○), and 30 mm (Tmu 40; ▿) from femur and deep femoral artery] and esophageal (◊) temperature response during rest, exercise (Ex), and postexercise recovery. Vertical dotted lines represent the start (time = 0 min) and end (t... |
below_temperature_muscles_not_work/benefitsofextremetem_16_0.txt | If you want to increase your muscle strength, doing workouts in the cold probably won’t help. Muscles work best at hot temperatures. When muscles get cold, the force they can produce decreases. You are also more likely to get injured in the cold, but the extra risk of injury is reduced if you warm up properly. |
below_temperature_muscles_not_work/PMC2269891_13_0.txt | An external file that holds a picture, illustration, etc.
Object name is tjp0524-0603-f1.jpg
Figure 1
Anatomical compartments of the thigh and quantification of the knee-extensor muscle mass
A, MRI of cross-sections of upper-thigh (a) and mid-thigh (b) with the white line indicating borders of quadriceps femoris muscle... |
below_temperature_muscles_not_work/PMC2269891_18_1.txt | period a cuff just below the knee was inflated to 240 mmHg to avoid any transport of heat to or from this part of the leg. Additionally, blood samples were withdrawn from the femoral artery and vein at rest, during passive exercise and at 13, 31, 50, 75, 128 and 176 s of the first exercise bout, for later analysis of ... |
below_temperature_muscles_not_work/PMC2269891_21_1.txt | muscle of 77 %). The resulting value was divided by 5 to express the rate of heat storage in joules per second. The active muscle mass was corrected by the estimated increases in muscle volume observed during intense knee-extensor exercise (Bangsbo et al. 1992; Ray & Dudley, 1998). The same principle was used to deter... |
below_temperature_muscles_not_work/documentrepidrep1typ_6_7.txt | iol., Lond. 277,291-323.
BRESSLER, B. H. (1981). Isometric contractile properties and instantaneous stiffness of amphibian skeletal
muscle in the temperature range of 0 to 20°C. Can. J. Physiol. Phannacol. 59, 548-554.
CLARKE, R. S. J., HELLON, R. F. & LIND, A. R. (1958). The duration of sustained contractions in the h... |
below_temperature_muscles_not_work/PMC2269891_45_0.txt | Measurement in man of heat production in dynamically contracting muscle with a free blood flow is complex, requiring a high time resolution and precise measurements. This was accomplished in this study and one major finding was that after 60 s of exercise, when aerobic metabolism provided 82–89 % of the ATP resynthesis... |
below_temperature_muscles_not_work/japplphysiol01107200_16_0.txt | The mechanical work (W) done during each contraction of the exercise phase was measured and recorded by using the Kin-Com isokinetic machine. This was calculated from the force exerted and the angular displacement during the knee extension |
below_temperature_muscles_not_work/PMC2269891_55_0.txt | RESOURCES
Similar articles
Cited by other articles
Links to NCBI Databases
FOLLOW NCBI
Connect with NLM |
below_temperature_muscles_not_work/PMC2269891_19_0.txt | To determine the thigh blood flow the subjects repeated the same exercise after 1 h of recovery during which femoral venous blood flow was measured using the thermodilution method, as explained above. The reason for measuring blood flow during this second bout of exercise was to avoid the confounding effect of infusing... |
below_temperature_muscles_not_work/benefitsofextremetem_17_0.txt | Take-home message
The small extra amount of calories burnt in extreme environments (hot or cold) may help you lose weight, but it could be outweighed by the increased health risks and reduced performance. Doing 150 minutes of physical activity a week is the key to good health, regardless of the temperature. |
below_temperature_muscles_not_work/PMC2269891_5_3.txt | output was continuously recorded during exercise. The mean force produced by the knee-extensor muscles during each kick was estimated by integrating the area under the curve (over the active angle ∼80-170 deg of the kicking cycle) obtained from the changes in voltage detected by a strain-gauge placed between the ankle... |
below_temperature_muscles_not_work/PMC2269891_54_7.txt | ] [Google Scholar]
Edwards RHT, Harris RC, Hultman E, Kaijser L, Koh D, Nordesjö L-O. Effect of temperature on muscle energy metabolism and endurance during successive isometric contractions, sustained to fatigue, of the quadriceps muscle in man. The Journal of Physiology. 1972;220:335–352. [PMC free article] [PubMed] ... |
below_temperature_muscles_not_work/documentrepidrep1typ_4_6.txt | higher temperatures (Blinks et al. 1978). The latter measurements also
indicate a much shorter time course for the presence of ca2+ within the fibre at higher
temperatures and a consequently shorter period of activation. At high temperatures,
insufficient time may be available to attain maximal force. Twitch contracti... |
below_temperature_muscles_not_work/documentrepidrep1typ_6_0.txt | could be attributable to several factors, including storage of energy in elastic
structures of low thermal sensitivity (Marsh & Bennett, 1985). However, its basis is
unknown at present.
Maximal force generation by muscles in vivo is almost independent of muscle
temperature from 25 to 40°C (Binkhorst et al. 1977; Bergh ... |
below_temperature_muscles_not_work/PMC2269891_48_5.txt | kinetics described by Gollnick & Hermansen (Fig. 3, p. 12; 1973) and Sinclair et al. (1999). Heat produced per mole of ATP used was assumed to be 35 kJ for ATP and PCr hydrolysis, 65 kJ for glycogenolysis and 72 kJ for oxidation (Curtin & Woledge, 1978; Woledge & Reilly, 1988). P:O ratio was assumed to be constant thr... |
below_temperature_muscles_not_work/documentrepidrep1typ_6_1.txt | maintenance of constant force, is maximal at approximately 30°C in both in
0 J, I I I I I I
15 25 35 45
Temperature ("C)
Fig. 6. The thermal dependence of burst locomotory speed and isotonic contractile performance
of isolated skeletal muscle of the lizard Dipsosaurus dorsalis. V,, maximal running velocity (filled
squ... |
below_temperature_muscles_not_work/japplphysiol01107200_10_0.txt | Enlarge table
Table 1. Mean (±SD) and individual data relating to the placement of the intramuscular multisensor thermal probe of the upper leg |
below_temperature_muscles_not_work/japplphysiol01107200_44_1.txt | ., evaporative and nonevaporative heat loss). For example, Aulick et al. (3) previously noted that, as limb sweat rate, cutaneous blood flow, and muscle-to-skin temperature differences increased during exercise, the active leg became a more effective vehicle for heat dissipation, and that femoral venous temperature eve... |
below_temperature_muscles_not_work/japplphysiol01107200_62_1.txt | rative and Comparative Physiology, 2015
Acute head-down tilt decreases the postexercise resting threshold for forearm cutaneous vasodilation
Glen P. Kenny et al., Journal of Applied Physiology, 2000
Postexercise protein metabolism in older and younger men following moderate-intensity aerobic exercise.
M Sheffield-Moore... |
below_temperature_muscles_not_work/PMC2269891_46_1.txt | estimated using a curve-fitting polynomial model. The present rate of rise and absolute values in thigh blood flow correspond closely with continuous Doppler measurements using the same exercise model and exercise intensity (Rådegran & Saltin, 1998). In this study, a rapid increase in thigh blood flow was found with t... |
below_temperature_muscles_not_work/PMC2269891_50_4.txt | production during exercise. |
below_temperature_muscles_not_work/PMC2269891_4_0.txt | Go to:
METHODS
Subjects
The five healthy, recreationally active males participating in this study possessed a mean age of 24 years (range 22–25 years), mean body weight of 76.6 kg (55-92 kg) and a mean height of 180 cm (169-192 cm). The peak oxygen uptake of the quadriceps muscle of one leg was 0.89 l min−1 (0.59-1.05 ... |
below_temperature_muscles_not_work/benefitsofextremetem_7_0.txt | Another way your body gets rid of excess heat is by warming up sweat to the point at which it evaporates, which then takes heat with it when it evaporates to the air. You can lose up to two litres of water every hour through sweat. As you sweat more during exercise in the heat, it is important to replace the fluid you ... |
below_temperature_muscles_not_work/PMC2269891_1_4.txt | estimated rate of heat release to skin and heat removal via lymph flow was < 2 J s−1 during the first 5 s and increased progressively to 24 ± 1 J s−1 at 180 s.
The rate of heat production increased significantly throughout exercise, being 107 % higher at 180 s compared to the initial 5 s, with half of the increase occ... |
below_temperature_muscles_not_work/japplphysiol01107200_18_0.txt | Mechanical efficiency (ME) was defined as the Wtotalcompleted during the 15-min exercise period divided by the Mtotal minus the energy expended under resting conditions (Mrest) (Mtotal − Mrest). Thus |
below_temperature_muscles_not_work/PMC2269891_5_4.txt | on the cranks of the cycle ergometer. Power output was calculated by estimating the external work done on the ergometer as well as the work done to lift the lower leg. |
below_temperature_muscles_not_work/PMC2269891_7_2.txt | where the infusate entered the venous catheter (∼8 cm from the tip of the catheter). The set-up was tested under in vitro conditions to determine the linearity of the system up to blood flows of 10 l min−1. The in vitro experiment was also used to determine the elevation in the infusate temperature occurring as the in... |
below_temperature_muscles_not_work/PMC2269891_54_15.txt | 182–187. [PubMed] [Google Scholar]
Saltin B, Henriksson J, Nygaard E, Andersen P, Jansson E. Fiber types and metabolic potentials of skeletal muscles in sedentary man and endurance runners. Annals of the New York Academy of Sciences. 1977;301:3–29. [PubMed] [Google Scholar]
Saugen E, Vøllested NK. Non-linear relationsh... |
below_temperature_muscles_not_work/PMC2269891_57_0.txt | Web Policies
FOIA
HHS Vulnerability Disclosure |
below_temperature_muscles_not_work/documentrepidrep1typ_6_5.txt |
BENNEIT, A. F. (1980). The thermal dependence of lizard behaviour. Anim. Behav. 28, 752-762.
BENNEIT, A. F. (1984). The thermal dependence of muscle function. Am. J. Physiol. 247 (Reg. Integ. comp.
Physiol. 16), R217-R229.
BERGH, U. & EKBLOM, B. (1979). Influence of muscle temperature on maximal muscle strength and po... |
below_temperature_muscles_not_work/PMC2269891_26_0.txt | equation image (7)
Mechanical efficiency Mechanical efficiency (MEf) was calculated by dividing the mechanical power output by the total energy turnover:
equation image (8)
Aerobic and anaerobic heat liberation Oxygen uptake (V̇O2 expressed in ml s−1) of the exercising thigh was obtained by multiplying the a-v O2 diffe... |
below_temperature_muscles_not_work/PMC2269891_56_0.txt |
National Library of Medicine
8600 Rockville Pike
Bethesda, MD 20894 |
below_temperature_muscles_not_work/documentrepidrep1typ_4_0.txt | -
d
// Amphibian
10 20 30
Temperature ("C)
Fig. 5. Thermal dependence of tetanic tension (Po) in mammalian and anuran amphibian skeletal
muscle. Data summarized from the literature by Bennett (1984).
adaptation to very different thermal regimes rather than a dichotomy in the functional
capacity of muscle from poikiloth... |
below_temperature_muscles_not_work/japplphysiol01107200_20_1.txt | ·𝐴𝐷)ex−(𝐻̄ 𝐹sk·𝐴𝐷)rest
Equation 5
and
𝐻skrec=(𝐻̄ 𝐹sk·𝐴𝐷)rec−(𝐻̄ 𝐹sk·𝐴𝐷)rest
Equation 6
where Hsk ex and Hsk rec are the total dry heat lost during the 15-min exercise and 60-min recovery periods, respectively |
below_temperature_muscles_not_work/PMC2269891_1_8.txt | -extension exercise, the mechanical efficiency estimated according to the traditional concept (i.e. the ratio between power output and the sum of the caloric equivalent of oxygen consumption and power output; Benedict & Cathcart, 1913) was found to be ∼25 % (Andersen & Saltin, 1985), which is in the upper range of what... |
below_temperature_muscles_not_work/japplphysiol01107200_15_0.txt | 𝑀total=∑𝑀˙Ex/rest
Equation 1
=∑{𝑉˙𝑂2·[((RER−0.7)0.3𝑒𝑐)+((1−RER)0.3𝑒𝑓)]}
where M˙Ex/rest is the rate of energy expenditure during exercise and recovery, RER is the respiratory exchange ratio, ec is the caloric equivalent (in kJ/l O2) for carbohydrates, and ef is the caloric |
below_temperature_muscles_not_work/japplphysiol01107200_2_4.txt | mu 10, Tmu 25, and Tmu 40, respectively, at end of recovery (P < 0.05). These results suggest that the transfer of residual heat from previously active musculature may contribute to the sustained elevation in postexercise Tes. |
below_temperature_muscles_not_work/documentrepidrep1typ_8_3.txt | . (1964). Thermostability of cells and proteins of poikilothems and its significance in speciation.
Physiol. Rev. 44,518-560.
WALKER, S. M. (1960). The relation of stretch and of temperature to contraction of skeletal muscle. Am.J.phys.
Med. 39, 234-258.
WEBB, P. W. (1978). Temperature effects on acceleration of rainbo... |
below_temperature_muscles_not_work/japplphysiol01107200_48_0.txt | Thoden et al. (28) previously showed a prolonged postexercise elevation (0.4–0.5°C) in Tes after dynamic exercise. It was subsequently shown that an increase in the postexercise hypotensive response, induced by exercise of increasing intensity, was paralleled by an increase (∼0.4°C) in the magnitude of the postexercise... |
below_temperature_muscles_not_work/PMC2269891_46_3.txt | unlikely that the heat accounting during the initial phase of the exercise bout is missing significant amounts of heat and vice versa for the later part of the exercise bout. Consequently, since work output is maintained nearly constant throughout the exercise, the overall efficiency of the muscle work performed is de... |
below_temperature_muscles_not_work/PMC2269891_21_0.txt | Rate of heat storage in active muscles The rate of heat storage (Hs) in the active muscles (i.e. quadriceps and tensor of fasciae latae) was calculated for 5 s intervals by multiplying the mean increase in temperature of all muscle portions in 5 s (ΔTm;°C) by the muscle mass (m; kg) and the specific heat of the muscle ... |
below_temperature_muscles_not_work/japplphysiol01107200_62_2.txt | Robert L. Ferris et al., Cancer Treatment Reviews, 2023
Powered by
BACK
Sign up for alertsSIGN UP
American Physiological Society
Twitter
Facebook
LinkedIn
YouTube
AMERICAN PHYSIOLOGICAL SOCIETY JOURNALS
American Journal of Physiology-Cell Physiology
American Journal of Physiology-Endocrinology and Metabolism
American J... |
below_temperature_muscles_not_work/japplphysiol01107200_29_1.txt | .05: ‡ significantly different from the deep to midmuscle temperature gradient; § significantly different from baseline resting; * superficial-to-core temperature gradient significantly different from deep-to-core temperature gradient. |
below_temperature_muscles_not_work/japplphysiol01107200_59_0.txt | Publications
110
Supporting
4
Mentioning
91
Contrasting
3 |
below_temperature_muscles_not_work/documentrepidrep1typ_6_3.txt | foregoing data indicate, behavioural performance involving both speed and
force generation reflects the underlying patterns of thermal dependence of muscle
function. Higher muscle temperatures may be expected to result in improved rate
performance in vivo, although maximal force application may be little affected and
... |
below_temperature_muscles_not_work/japplphysiol01107200_49_0.txt | Summary.
In the present study, exercise was performed such that the dynamic resistance during the bilateral knee-extension exercise was sufficient to elicit a heat load of 4.78 kJ/kg. Thus it can be assumed that the rate of heat production and accumulation in muscle was comparable between subjects. Thus the variation i... |
below_temperature_muscles_not_work/documentrepidrep1typ_7_1.txt | ochemical, enzymatic, and contractile
properties of skeletal muscle fibres in the lizard Dipsosaums dorsa1is.J. exp. 2001. 214, 293-302.
HARTSHORNE, D. J., BARNS, E. M., PARKER, L. & FUCHS, F. (1972). The effect of temperatureonactomyosin.
Biochim. biophys. Acta 267, 190-202.
HILL, A. V. (195 1). The influence of tempe... |
below_temperature_muscles_not_work/PMC2269891_54_1.txt | . [PubMed] [Google Scholar]
Andersen P, Saltin B. Maximal perfusion of skeletal muscle in man. The Journal of Physiology. 1985;366:233–249. [PMC free article] [PubMed] [Google Scholar]
Ardevol A, Adan C, Remesar X, Fernández-López JA, Alemany M. Hind leg heat balance in obese Zucker rats during exercise. Pflügers Archi... |
below_temperature_muscles_not_work/documentrepidrep1typ_5_5.txt | imal force generation by an animal to be relatively temperature independent.
Physical performance involving rate-dependent factors, such as maximal power
output, does improve significantly with increasing muscle temperature (e.g.
Asmussen & Bgje, 1945; Binkhorst, Hoofd & Vissers, 1977; Bergh & Ekblom, 1979).
Consequent... |
below_temperature_muscles_not_work/PMC2269891_5_2.txt |
5 24 72 172 80 2.4 2.5 1.2 0.7 6.7 1.05
Mean 24 77 180 83 2.7 3.0 1.4 0.8 7.9 0.89
±s.d. 1 15 10 17 0.5 0.6 0.5 0.2 1.6 0.20
Open in a separate window
Mechanical power output
Power |
below_temperature_muscles_not_work/PMC2269891_48_4.txt | aNet PCr hydrolysis and lactate accumulation estimations are based on the initial and final values observed in biopsy samples from vastus lateralis obtained in parallel studies with the same experimental protocol (J. Bangsbo, P. Krustrup, J. Gonz.alezález-Alonso & B. Saltin, unpublished; ΔPCr 16.3 mmol (kg wet wt)−1 a... |
below_temperature_muscles_not_work/japplphysiol01107200_45_0.txt | Tmu response: postexercise.
Few studies have graphically presented muscle tissue temperature response during the postexercise period, and, even so, no specific discussion was presented with regard to these data (1, 23,25). It is clear in this study that, during the transition from exercise to postexercise resting recov... |
below_temperature_muscles_not_work/PMC2269891_54_10.txt | leiffähigkeit des menschlichen Muskels. Pflügers Archiv. 1955;260:361–367. [PubMed] [Google Scholar]
Hill AV, Woledge RC. An examination of absolute values in myothermic measurements. The Journal of Physiology. 1962;162:311–333. [PMC free article] [PubMed] [Google Scholar]
Hinckle PC, Yu ML. The phosphorous/oxygen rati... |
below_temperature_muscles_not_work/PMC2269891_54_0.txt | Go to:
References
Aagaard P, Simonsen EB, Trolle M, Bangsbo J, Klausen K. Moment and power generation during maximal knee extensions performed at low and high speeds. European Journal of Applied Physiology. 1994;69:376–381. [PubMed] [Google Scholar]
Andersen P, Adams RP, Sjøgaard G, Thorboe A, Saltin B. Dynamic knee ex... |
below_temperature_muscles_not_work/PMC2269891_5_1.txt | .8 1.1 0.7 7.2 0.99
2 24 90 188 72 3.0 3.7 2.1 0.9 9.8 0.78
3 25 55 169 66 2.1 2.8 0.8 0.7 6.5 0.59
4 22 92 192 109 3.3 3.6 1.7 1.0 9.6 1.02 |
below_temperature_muscles_not_work/PMC2269891_1_3.txt | muscles, (ii) measuring heat removal to the body core by the circulation, and (iii) estimating heat transfer to the skin by convection and conductance as well as to the body core by lymph drainage.
The rate of heat storage in knee-extensor muscles was highest during the first 45 s of exercise (70-80 J s−1) and decline... |
below_temperature_muscles_not_work/PMC2269891_39_0.txt | Mechanical power output
During the first 30 s of exercise the mean power output was 83 W (range 58–114 W). During the subsequent 90 s, power output was within 1 % of this level (Fig. 8C). Overall there was a trend for a reduction in power output which was due to a progressive decline in kicking frequency from 1.08 ± 0.... |
below_temperature_muscles_not_work/japplphysiol01107200_28_0.txt | Download figureDownload PowerPoint |
below_temperature_muscles_not_work/documentrepidrep1typ_0_4.txt | ile performance
of muscle from a lizard. Lizards are a particularly useful group of animals for such
studies as they may naturally experience a wide range of body temperatures daily.
Many species also have very high thermal tolerance. Data are presented here (Fig. 1)
on the influence of temperature on several aspects o... |
below_temperature_muscles_not_work/PMC2269891_28_1.txt | the water jacket. |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.