Skin temperature of middle distance runners after a maximum effort test

The purpose of this study was to analyze skin temperature (Tsk) responses after a short-term maximum effort test in middle-distance runners. A quasi-experimental study was conducted with ten men (age 23.5±5.10 years) who trained 5 days per week, 2 to 3 hours per day, and were submitted to thermographic evaluation before and after Cooper's 12-minute run test (CRT). The mean temperature of the anterior-superior, posterior-superior, anterior-inferior, and posterior-inferior regions was compared between the sides (i.e., left and right) before and after CRT. The paired t-test showed a significant decrease in Tsk after CRT in the following regions: right pectoralis major (-3.4%), left pectoralis major (-3.4%), and abdomen (-5%) in the anterior-superior view (p<0.01); and in the upper right trunk (-1.9%), upper left trunk (-1.9%) and lower back (-2.9%) in the posterior-superior view (p<0.05). In the lower limbs, a significant increase in temperature of the left knee (1.6%), and right (3.6%) and left ankles (2.9%) in the anterior view (p<0.05), as well as in the right (4.3%) and left ankles (3.7%) in the posterior view (p<0.05) were observed. There was no difference in temperature between the right and left sides. In conclusion, the Tsk change of middle-distance runners was symmetrical between sides, decreasing in upper limbs and trunk and increasing in lower limbs after a short-term maximum effort test.

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The Effect of Short-Term Dependency and Immobility on Skin Temperature and Colour in the Hand

Journal of Hand Surgery (European Volume) ◽

10.1016/j.jhsb.2006.08.009 ◽

2006 ◽

Vol 31 (6) ◽

pp. 611-615 ◽

Cited By ~ 20

Author(s):

H. P. SINGH ◽

T. R. C. DAVIS

Keyword(s):

Skin Temperature ◽

Digital Images ◽

Office Work ◽

Short Term ◽

Right Hand ◽

Term Dependency ◽

The Right

The effects of short-term dependency and immobility on skin temperature were assessed in two experiments. In the first study, ten volunteers hung their left arm dependent and motionless while using their right hand for light office work. After 30 minutes, the dependent left hands were cooler (mean = 0.9 °C: 95% CI = 0.7–1.1) than the active right hands and exhibited a deeper colour with significantly increased green intensity ( P = 0.03) as assessed on digital images. In the second study, seven volunteers submerged both their hands in water at 15 °C for 15 minutes. The left arm was then left dependent and motionless while the right hand was placed on the table and its fingers were flexed and extended every 10 seconds. The left hands remained cooler than the right and were a median of 3.6 (range 2.9–4.5) °C cooler after 60 minutes. These studies demonstrate that skin temperature and colour differences between the hands, which are sometimes used to support the diagnosis of CRPS-1, can be produced and maintained by short-term immobility and dependency of the hand.

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Asymmetry and changes in the neuromuscular profile of short-track athletes as a result of strength training

PLoS ONE ◽

10.1371/journal.pone.0261265 ◽

2021 ◽

Vol 16 (12) ◽

pp. e0261265

Author(s):

Paweł Pakosz ◽

Anna Lukanova-Jakubowska ◽

Edyta Łuszczki ◽

Mariusz Gnoiński ◽

Oscar García-García

Keyword(s):

Strength Training ◽

Lower Limb ◽

Female Athletes ◽

Lower Limbs ◽

Lower Limb Muscles ◽

Limb Muscles ◽

Before And After ◽

Monthly Period ◽

Track Athletes ◽

The Right

Background The purpose of this study was to identify the biomedical signals of short-track athletes by evaluating the effects of monthly strength training on changes in their neuromuscular profile, strength, and power parameters of the lower limb muscles. Muscle asymmetry, which can cause a risk of injury, was also evaluated. Methods and results This study involved female athletes, age 18.8 ± 2.7 years, with a height of 162 ± 2.4 cm, and weight of 55.9 ± 3.9 kg. Before and after the monthly preparatory period prior to the season, strength measurements were assessed through the Swift SpeedMat platform, and reactivity of the lower limb muscles was assessed with tensiomyography (TMG). The athletes were also tested before and after the recovery training period. In the test after strength training, all average countermovement jump (CMJ) results improved. Flight time showed an increase with a moderate to large effect, using both legs (5.21%). Among the TMG parameters, time contraction (Tc) changed globally with a decrease (-5.20%). Changes in the results of the test after recovery training were most often not significant. Conclusion A monthly period of strength training changes the neuromuscular profile of short-track female athletes, with no significant differences between the right and left lower limbs.

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Crossover effects of ultrasound-guided percutaneous neuromodulation on contralateral hamstring flexibility

Acupuncture in Medicine ◽

10.1177/0964528420920283 ◽

2020 ◽

pp. 096452842092028

Author(s):

Blanca De-la-Cruz-Torres ◽

Carlos Carrasco-Iglesias ◽

Francisco Minaya-Muñoz ◽

Carlos Romero-Morales

Keyword(s):

Muscle Activation ◽

Lower Limbs ◽

Post Intervention ◽

Crossover Effects ◽

Hip Range Of Motion ◽

Before And After ◽

Hamstring Flexibility ◽

The Right ◽

Sliding Technique ◽

Straight Leg Raise

Background Crossover effects refer to the responses of a non-exercised contralateral limb. There is evidence of this effect, as it relates to muscle fatigue, strength, and stretch, but not as it relates to neuromodulation. Objectives To compare the crossover effects of percutaneous neuromodulation (PNM) on hip range of motion (ROM), observed in a straight leg raise (SLR) test, in asymptomatic participants with bilateral reduced hamstring flexibility, versus the neurodynamic sciatic sliding technique, hamstring stretching and mechanical stimulation of the sciatic nerve using a needle (without electrical stimulation). To evaluate the tensiomyographic changes between the two lower limbs after these interventions. Methods 80 participants with bilateral reduced hamstring flexibility were randomized into four groups: Stretching, Neurodynamic, PNM, and Needle groups. All interventions were performed on the right limb. Each participant’s leg was subjected to SLR testing and tensiomyography before and after the interventions. Results Each group improved their SLR values in the non-intervention limb compared to baseline values, but the PNM and Needle groups obtained higher values for the SLR test in the non-intervention limb compared with the Neurodynamic and Stretching groups. There were statistically significant differences for mean SLR measures between limbs pre- and post-intervention for all groups except the PNM group, suggesting crossover effects for PNM but not the other techniques studied. There were no differences in tensiomyographic assessments between groups or between sides, at baseline or upon completion of the study. Conclusion PNM produced benefits in the SLR test in the non-intervention limb and only 1.5 min was enough to obtain this effect. In addition, no technique interfered with muscle activation.

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Short-term stress: effects on cortisol levels and carotenoid spots in Arctic char (Salvelinus alpinus)

Canadian Journal of Zoology ◽

10.1139/cjz-2016-0043 ◽

2016 ◽

Vol 94 (10) ◽

pp. 707-712 ◽

Cited By ~ 1

Author(s):

Tobias Backström ◽

Kajsa Johansson ◽

Eva Brännäs ◽

Jan Nilsson ◽

Carin Magnhagen

Keyword(s):

Recovery Time ◽

Salvelinus Alpinus ◽

Arctic Char ◽

Short Term ◽

Stress Effects ◽

Stress Responsiveness ◽

Before And After ◽

Cortisol Levels ◽

The Right ◽

Carotenoid Pigmentation

Earlier studies have shown that the carotenoid pigmentation in Arctic char (Salvelinus alpinus (L., 1758)) is connected to stress responsiveness. These studies also suggested that the pigmentation is dynamic and can change quickly. Therefore, we wanted to investigate the effect of a short-term stressor on the number of carotenoid spots before and after certain time intervals after the stressor. Individuals were exposed to a net-restraint stressor for 1 min and then assigned a recovery time of either 0, 1, 2, 8, or 24 h. Photographs were taken before the stressor and after the recovery time to count carotenoid spots and to look at the relative changes over time. Behaviour during the stressor and cortisol levels after the assigned recovery time were evaluated. We found that the change in spottiness, measured as the ratio of spots after and before the stressor, changed with recovery time on the right side but not on the left side. Furthermore, left-side spots were correlated with struggling activity. Thus, carotenoid pigmentation seems to be lateralized, with more static spots on the left side connected to stress responsiveness, whereas spots on the right side seem to be more dynamic.

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Effect of short-term peripheral myopic defocus on ocular biometrics using Fresnel “press-on” lenses in humans

10.21203/rs.3.rs-536692/v1 ◽

2021 ◽

Author(s):

Ryo Kubota ◽

Nabin R Joshi ◽

Inna Samandarova ◽

Maksud Oliva ◽

Arkady Selenow ◽

...

Keyword(s):

Axial Length ◽

Choroidal Thickness ◽

Fresnel Lens ◽

Short Term ◽

Full Field ◽

Before And After ◽

The Mean ◽

The Difference ◽

The Right ◽

And Control

Abstract This study assessed axial length and choroidal thickness changes following short-term peripheral myopic defocus in normal adult subjects. Twenty subjects underwent defocus sessions by viewing a full-field projected movie 4 meters away for 4 hours in the morning, while wearing spectacle lenses, corrected for distance vision in both eyes. The right eye, serving as the test eye, was peripherally defocused using a Fresnel lens overlay of + 3.50D with a central aperture of 11.5 mm, while the left eye served as the control. A subset of 10 subjects from the same cohort also underwent additional defocus sessions with + 5.00D of peripheral defocus. Axial length was measured and radial sub-foveal choroidal scans were obtained before and after the defocus sessions. The mean increase in axial length of the test eyes was 8 µm (p < 0.05) less than that of the control eyes with + 3.50D peripheral defocus condition and 14 µm (p < 0.05) less than the control eyes with + 5.00 D peripheral defocus condition. The difference in mean changes for choroidal thickness between test and control eyes were not significant for both dioptric conditions. Our results demonstrated that short-term peripheral myopic defocus significantly inhibited axial elongation in adult humans, without significant changes in choroidal thickness.

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Heading Disorientation after Right Posteromedial Infarction

Case Reports in Neurological Medicine ◽

10.1155/2015/396802 ◽

2015 ◽

Vol 2015 ◽

pp. 1-6 ◽

Cited By ~ 1

Author(s):

Ritsuo Hashimoto ◽

Noriyo Komori ◽

Masako Abe

Keyword(s):

Ischemic Stroke ◽

Qualitative Analysis ◽

Short Term ◽

Significant Difference ◽

Before And After ◽

The Subject ◽

The Right ◽

Spatial Locations ◽

Normal Controls ◽

Error Types

We report the case of heading disorientation following ischemic stroke involving the right posteromedial areas. The patient was administered a new test named the Card Placing Test during which a subject was required to recreate an array of three cards, each of which was randomly placed on eight grids around the subject, before and after the subject’s rotation. Qualitative analysis of his performance after rotation revealed that over half of the errors comprised transposition and rotational offset. His score on the Card Placing Test was compared with those of normal controls(n=11). The results showed that his score on Card Placing Test after rotation was significantly lower than those of controls, whereas there was no significant difference between the case and controls in profile of error types. We infer that the heading disorientation observed in the present case was a result of a derangement of a short-term buffer that integrated information on spatial locations of objects with changes in body directions.

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Effect of short-term peripheral myopic defocus on ocular biometrics using Fresnel “press-on” lenses in humans

Scientific Reports ◽

10.1038/s41598-021-02043-2 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Ryo Kubota ◽

Nabin R. Joshi ◽

Inna Samandarova ◽

Maksud Oliva ◽

Arkady Selenow ◽

...

Keyword(s):

Axial Length ◽

Choroidal Thickness ◽

Fresnel Lens ◽

Short Term ◽

Central Visual Field ◽

Full Field ◽

Before And After ◽

The Difference ◽

The Right ◽

And Control

AbstractThis study assessed axial length and choroidal thickness changes following short-term peripheral myopic defocus in normal adult subjects. Twenty subjects underwent defocus sessions by viewing a full-field projected movie 4 m away for 4 h in the morning, while wearing spectacle lenses, corrected for distance vision in both eyes. The right eye, serving as the test eye, was peripherally defocused using a Fresnel lens overlay of + 3.50 D with a central clear aperture of 11.5 mm (correlating to a clear central visual field of approximately 23°), while the left eye served as the control (with no Fresnel lens overlay). A subset of 10 subjects from the same cohort also underwent additional defocus sessions with + 5.00 D of peripheral defocus. Axial length was measured and radial sub-foveal choroidal scans were obtained before and after the defocus sessions. The increase in axial length of the test eyes were significantly less than the control eyes under both peripheral defocus conditions (p < 0.05). The difference in mean change for choroidal thickness between test and control eyes was not significant for either dioptric condition. Our results demonstrated that short-term peripheral myopic defocus significantly inhibited axial elongation in adult humans, without significant changes in choroidal thickness.

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Correlation between strength and skin temperature asymmetries in the lower limbs of Brazilian elite soccer players before and after a competitive season

Journal of Thermal Biology ◽

10.1016/j.jtherbio.2021.102919 ◽

2021 ◽

pp. 102919

Author(s):

Jorge L. R. Júnior ◽

Warley H.D. Oliveira ◽

Hugo Falqueto ◽

André G.P. Andrade ◽

Rodrigo F. Morandi ◽

...

Keyword(s):

Skin Temperature ◽

Lower Limbs ◽

Soccer Players ◽

Competitive Season ◽

Before And After

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Mid-aortic syndrome: computed tomography angiography depicting extensive collateral circulation in an 11-year-old patient with thoracoabdominal aortic coarctation

VASA ◽

10.1024/0301-1526/a000176 ◽

2012 ◽

Vol 41 (2) ◽

pp. 132-135 ◽

Cited By ~ 2

Author(s):

Krohn ◽

Gebauer ◽

Hübler ◽

Beck

Keyword(s):

Computed Tomography ◽

Computed Tomography Angiography ◽

Collateral Circulation ◽

Intestinal Ischemia ◽

Clinical Presentation ◽

Lower Limbs ◽

Upper Body ◽

Descending Aorta ◽

Before And After ◽

Blood Pressures

The mid-aortic syndrome is an uncommon clinical condition characterized by severe narrowing of the descending aorta, usually with involvement of its renal and visceral branches, presenting with uncontrollably elevated blood pressures of the upper body, renal and cardiac failure, intestinal ischemia, encephalopathy symptoms and claudication of the lower limbs, although clinical presentation is variable. In this article we report the case of an eleven-year-old patient with the initial diagnosis of a mid-aortic syndrome and present the computed tomography angiography pictures and reconstructions before and after surgical therapy.

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DMSA-scintigraphy in paediatrics: Is the evaluation of the geometric mean necessary for the calculation of the differential renal function?

Nuklearmedizin ◽

10.1055/s-0038-1625921 ◽

2001 ◽

Vol 40 (04) ◽

pp. 107-110 ◽

Cited By ~ 1

Author(s):

B. Roßmüller ◽

S. Alalp ◽

S. Fischer ◽

S. Dresel ◽

K. Hahn ◽

...

Keyword(s):

Renal Function ◽

Geometric Mean ◽

Region Of Interest ◽

Posterior View ◽

Renal Abnormality ◽

Anterior View ◽

Differential Renal Function ◽

The Mean ◽

The Right ◽

To Receive

SummaryFor assessment of differential renal function (PF) by means of static renal scintigraphy with Tc-99m-dimer-captosuccinic acid (DMSA) the calculation of the geometric mean of counts from the anterior and posterior view is recommended. Aim of this retrospective study was to find out, if the anterior view is necessary to receive an accurate differential renal function by calculating the geometric mean compared to calculating PF using the counts of the posterior view only. Methods: 164 DMSA-scans of 151 children (86 f, 65 m) aged 16 d to 16 a (4.7 ± 3.9 a) were reviewed. The scans were performed using a dual head gamma camera (Picker Prism 2000 XP, low energy ultra high resolution collimator, matrix 256 x 256,300 kcts/view, Zoom: 1.6-2.0). Background corrected values from both kidneys anterior and posterior were obtained. Using region of interest technique PF was calculated using the counts of the dorsal view and compared with the calculated geometric mean [SQR(Ctsdors x Ctsventr]. Results: The differential function of the right kidney was significantly less when compared to the calculation of the geometric mean (p<0.01). The mean difference between the PFgeom and the PFdors was 1.5 ± 1.4%. A difference > 5% (5.0-9.5%) was obtained in only 6/164 scans (3.7%). Three of 6 patients presented with an underestimated PFdors due to dystopic kidneys on the left side in 2 patients and on the right side in one patient. The other 3 patients with a difference >5% did not show any renal abnormality. Conclusion: The calculation of the PF from the posterior view only will give an underestimated value of the right kidney compared to the calculation of the geometric mean. This effect is not relevant for the calculation of the differntial renal function in orthotopic kidneys, so that in these cases the anterior view is not necesssary. However, geometric mean calculation to obtain reliable values for differential renal function should be applied in cases with an obvious anatomical abnormality.

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