scholarly journals Pain sensitivity and athletic performance

2019 ◽  
Author(s):  
Lior Zeller ◽  
Nadav Shimoni ◽  
Alina Vodonos ◽  
Iftach Sagy ◽  
Leonid Barski ◽  
...  

AbstractPurpeseTo determine whether higher pain thresholds are associated with better performance in long-distance runners.DesignCross-sectional study.MethodsSeventy participants, divided into groups of fast and non-fast runners according to peak results in a 10km run. Main Outcome Measures, Cold pressor test.ResultsOf the 70 subjects, 28 were in the fastest group (less than 39 minutes in a 10km run) and 42 in the non-fast group. The faster group was characterized with older age (34.0±8.5 vs. 29.5±5.7, p=0.01), greater mean weekly running time (5.5 (0-17) vs. 2 (0- 10), p<0.001), and more years of running [10 (1.5-34.0) vs. 7 (0-20, p=0.05)]. In a multivariable analysis longer cold pressor time was associated with faster 10Km run (O.R 1.01, 95% C.I 1.00-1.01).ConclusionsIt seems that higher pain thresholds play an important role in the superior ability of long distance runners.

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Morten Pallisgaard Støve ◽  
Rogerio Pessoto Hirata ◽  
Thorvaldur Skuli Palsson

Abstract Objectives The effect of stretching on joint range of motion is well documented, and although sensory perception has significance for changes in the tolerance to stretch following stretching the underlining mechanisms responsible for these changes is insufficiently understood. The aim of this study was to examine the influence of endogenous pain inhibitory mechanisms on stretch tolerance and to investigate the relationship between range of motion and changes in pain sensitivity. Methods Nineteen healthy males participated in this randomized, repeated-measures crossover study, conducted on 2 separate days. Knee extension range of motion, passive resistive torque, and pressure pain thresholds were recorded before, after, and 10 min after each of four experimental conditions; (i) Exercise-induced hypoalgesia, (ii) two bouts of static stretching, (iii) resting, and (iv) a remote, painful stimulus induced by the cold pressor test. Results Exercise-induced hypoalgesia and cold pressor test caused an increase in range of motion (p<0.034) and pressure pain thresholds (p<0.027). Moderate correlations in pressure pain thresholds were found between exercise-induced hypoalgesia and static stretch (Rho>0.507, p=0.01) and exercise-induced hypoalgesia and the cold pressor test (Rho=0.562, p=0.01). A weak correlation in pressure pain thresholds and changes in range of motion were found following the cold pressor test (Rho=0.460, p=0.047). However, a potential carryover hypoalgesic effect may have affected the results of the static stretch. Conclusions These results suggest that stretch tolerance may be linked with endogenous modulation of pain. Present results suggest, that stretch tolerance may merely be a marker for pain sensitivity which may have clinical significance given that stretching is often prescribed in the rehabilitation of different musculoskeletal pain conditions where reduced endogenous pain inhibition is frequently seen.


2015 ◽  
Vol 2 (4) ◽  
Author(s):  
Olof Thoreson ◽  
Karin Svensson ◽  
Pall Jonasson ◽  
Peter Kovac ◽  
Leif Sward ◽  
...  

Author(s):  
Diego Vidaletti Silva ◽  
Gustavo Waclawovsky ◽  
Ana Beatriz Kramer ◽  
Cinara Stein ◽  
Bruna Eibel ◽  
...  

2015 ◽  
Vol 115 (1) ◽  
pp. 14-23 ◽  
Author(s):  
Vinicius J. B. Martins ◽  
Andrea P. O. Neves ◽  
Márcia C. Garcia ◽  
Regina C. Spadari ◽  
Ana Paula G. Clemente ◽  
...  

AbstractUndernutrition is a stressor with long-term consequences, and the effect of nutritional recovery on cortisol and thyroid hormone status is unknown. To investigate basal thyroid hormones and the cortisol response to a cold pressor test in children recovered from undernutrition, a cross-sectional study was undertaken on children (6–16 years) separated into four groups: control (n 41), stunted (n 31), underweight (n 27) and recovered (n 31). Salivary cortisol was collected over the course of 10 h: upon awakening, before and after an unpleasant and a pleasant stimulus. Cortisol upon awakening was highest in the stunted and lowest in the underweight groups: control=5·05 (95 % CI 3·71, 6·89) nmol/l, stunted=6·62 (95 % CI 3·97, 11·02) nmol/l, underweight=2·51 (95 % CI 1·75, 3·63) nmol/l and recovered=3·46 (95 % CI 2·46, 4·90) nmol/l (P=0·005). Girls had higher cortisol concentrations upon awakening compared with boys (P=0·021). The undernourished groups showed an elevated cortisol response both to the unpleasant stimulus and at the last measurement (16.00 hours) compared with that of the recovered group: AUC, control=2·07 (95 % CI 1·69, 2·45) nmol/l×30 min, stunted=2·48 (95 % CI 1·91, 3·06) nmol/l×30 min, underweight=2·52 (95 % CI 2·07, 2·97) nmol/l×30 min, recovered=1·68 (95 % CI 1·26, 2·11) nmol/l×30 min (P=0·042); and control=2·03 (95 % CI 1·75, 2·39) nmol/l×30 min, stunted=2·51 (95 % CI 1·97, 3·19) nmol/l×30 min, underweight=2·61 (95 % CI 2·16, 3·16) nmol/l×30 min, recovered=1·70 (95 % CI 1·42, 2·03) nmol/l×30 min (P=0·009). Lower free thyroxine (T4) was found in the recovered and stunted groups: control=1·28 (95 % CI 1·18, 1·39) pmol/l, stunted=0·98 (95 % CI 0·87, 1·10) pmol/l, underweight=1·10 (95 % CI 1·01, 1·21) pmol/l and recovered=0·90 (95 % CI 0·83, 0·99) pmol/l (P<0·001). Multivariate analysis showed a lower cortisol concentration along 10 h (06.00–16.00 hours) in the recovered compared with the other groups (P=0·017), and similar concentrations between the recovered and control group. In conclusion, the children with recovery in weight and height had a cortisol stress response similar to control but a lower basal free T4. Longitudinal studies are warranted to determine the extent of these endocrine changes after recovery of undernutrition and in adulthood.


2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 1472.2-1472
Author(s):  
T. El Joumani ◽  
H. Rkain ◽  
T. Fatima Zahrae ◽  
H. Kenza ◽  
R. Abouqal ◽  
...  

Objectives:To evaluate the effect of containment, during the Covid-19 pandemic, on the pain of patients with CIRD, and to analyze the factors associated with the experience of pain.Methods:A cross-sectional study was conducted among patients with rheumatic diseases using a questionnaire providing information on patients and disease characteristics. Impact of COVID-19 on This is a cross-sectional study that consecutively includedPatients were asked to assess the global pain which they had experienced before and during the containment period, using a single Visual Analogue Scale (VAS) ranging from 0 (no pain) to 10 (greatest pain).Statistical Analysis System IBM SPSS Statistics V20.0.0 was used to analyze the study data.We performed univariate then multivariate analysis to search any related factors to pain perception during to quarantines. Qualitative values were analyzed by the chi2 test. Quantitative values were analyzed by the Student test when the measures were normally distributed or by nonparametric test (Mann–Whitney U) when the measures were not normally distributed (Kolmogorov–Smirnov test was used to test normality).Results:Among the 350 patients who answered to the questionnaire online, rheumatoid arthritis represented 62.3%, spondyloarthropathy 34.3% and undifferentiated CIRD 3.4%.Pain experience caused by the CIRD during the containment was reported by 79.1% of patients.The level of pain, using the VAS of Pain increased significantly during the COVID-19 pandemic (4,6 ± 2,8 and 5,4 ± 3 before and during the containment; p<0.001).In multivariate analysis, the factors implicated in pain were the negative impact of Coronavirus on access to rheumatologic care, discontinuation of therapeutic adherence, the disturbed quality of sleep and the negative psychological impact (table 1).Table 1: Summarize multivariable analysis of factors associated with painful experience related to CIRD during containement.Table 1.Multivariable analysis of factors associated with painful experience related to CIRD during containementPImpact on monitoring0.05Impact on therapeutic adherence<0.001Quality of sleep disturbed0.001Negative psychological impact0.02Conclusion:This survey showed the that the COVID-19 pandemic have incresed painful experience in CIRD patients. Factors influencing painful experience should be taken into account to help patients to cope with their chronic rheumatism and this global health crisis.Disclosure of Interests:None declared


2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Joshua Mattock ◽  
Julie R. Steele ◽  
Karen J. Mickle

Abstract Background Medial tibial stress syndrome (MTSS) is a common lower leg injury experienced by runners. Although numerous risk factors are reported in the literature, many are non-modifiable and management of the injury remains difficult. Lower leg muscle structure and function are modifiable characteristics that influence tibial loading during foot-ground contact. Therefore, this study aimed to determine whether long-distance runners with MTSS displayed differences in in vivo lower leg muscle structure and function than matched asymptomatic runners. Methods Lower leg structure was assessed using ultrasound and a measure of lower leg circumference to quantify muscle cross-sectional area, thickness and lean lower leg girth. Lower leg function was assessed using a hand-held dynamometer to quantify maximal voluntary isometric contraction strength and a single leg heel raise protocol was used to measure ankle plantar flexor endurance. Outcome variables were compared between the limbs of long-distance runners suffering MTSS (n = 20) and matched asymptomatic controls (n = 20). Means, standard deviations, 95 % confidence intervals, mean differences and Cohen’s d values were calculated for each variable for the MTSS symptomatic and control limbs. Results MTSS symptomatic limbs displayed a significantly smaller flexor hallucis longus cross-sectional area, a smaller soleus thickness but a larger lateral gastrocnemius thickness than the control limbs. However, there was no statistical difference in lean lower leg girth. Compared to the matched control limbs, MTSS symptomatic limbs displayed deficits in maximal voluntary isometric contraction strength of the flexor hallucis longus, soleus, tibialis anterior and peroneal muscles, and reduced ankle plantar flexor endurance capacity. Conclusions Differences in lower leg muscle structure and function likely render MTSS symptomatic individuals less able to withstand the negative tibial bending moment generated during midstance, potentially contributing to the development of MTSS. The clinical implications of these findings suggest that rehabilitation protocols for MTSS symptomatic individuals should aim to improve strength of the flexor hallucis longus, soleus, tibialis anterior and peroneal muscles along with ankle plantar flexor endurance. However, the cross-sectional study design prevents us determining whether between group differences were a cause or effect of MTSS. Therefore, future prospective studies are required to substantiate the study findings.


Author(s):  
Wirnitzer Katharina ◽  
Motevalli Mohamad ◽  
Tanous Derrick ◽  
Gregori Martina ◽  
Wirnitzer Gerold ◽  
...  

AbstractThe primary nutritional challenge facing endurance runners is meeting the nutrient requirements necessary to optimize the performance and recovery of prolonged training sessions. Supplement intake is a commonly used strategy by elite and recreational distance runners to meet nutritional recommendations. This study was conducted to investigate the patterns of supplement intake among different groups of distance runners and the potential association between supplement intake and sex, age, running and racing experiences.In a cross-sectional design, from a total of 317 runners participating in this survey, 119 distance runners were involved in the final sample after data clearance, assigned into three groups of 10-km runners (n = 24), half-marathoners (n = 44), and (ultra-)marathoners (n = 51). Personal characteristics, training and racing experiences, as well as patterns of supplement intake, including type, frequency, and dosage, were evaluated by questionnaire. Food Frequency Questionnaire was implemented to assess macronutrient intake. ANOVA and logistic regression were used for statistical analysis.While 50 % of total distance runners reported consuming supplements regularly, no differences between distance groups in consumption of carbohydrate/protein, mineral, or vitamin supplements were observed (p > 0.05). In addition, age, sex, running and racing experience showed no significant association with supplement intake (p > 0.05). Vitamin supplements had the highest intake rate in runners by 43 % compared to minerals (34 %) and carbohydrate/protein supplements (19 %).The present findings provide a window into the targeted approaches of long-distance runners as well as their coaches and sport nutrition specialists when applying and suggesting sustainable nutritional strategies for training and competition.Trial registration: ISRCTN73074080. Retrospectively registered 12th June 2015.


2019 ◽  
Author(s):  
Amjad Al-Shdaifat ◽  
Anwar Al-Kassar ◽  
Asgeir Johannessen ◽  
Zaid Al-Dabbagh ◽  
Mohamed Al-Ethawi ◽  
...  

Abstract Background Irritable bowel syndrome (IBS) is one of the commonest diagnosed gastrointestinal disorders (GI) in primary care and gastroenterology practices. This study aimed to explore the prevalence of IBS, and identify associated factors, among university students in Jordan. Methods A cross-sectional study was conducted among students at the Hashemite University in Jordan. A validated, confidential, self-administered data collection questionnaire was used for the collection of personal and sociodemographic data, and the Rome III criteria were used to define IBS. Logistic regression analysis was done to identify factors associated with IBS. Results A total of 198 students participated in the study, of whom 163 had complete data and could be assessed by the Rome III criteria. The age range of the students was 18 to 35 years, and 91 (55.8%) were women. Overall, 26 (16.0%) of the respondents were diagnosed with IBS. Poor sleep (Adjusted Odds Ratio [AOR] 3.9; 95% confidence interval [CI] 1.5-10.4; p<0.01), being married (AOR 7.6; 95% CI 2.0-28.8; p<0.01) and a family history of IBS (AOR 2.9; 95% CI 1.1-7.7; p=0.03) were independently associated with IBS in multivariable analysis. Conclusion IBS was common among otherwise healthy university student in Jordan. Lifestyle factors such as poor sleep appeared to be associated with IBS symptoms.


Author(s):  
Chesco Aloyce Motto

This study intended to explore the school environmental factors influencing female pupils’ academic performance in public primary schools at Iringa Municipality. A cross-sectional study design was used where structured questionnaire using open and closed ended questionnaire as well as interviews to participants were used to collect primary information from 123 girls’ pupils and 36 key informants from seven selected public primary schools. Data analysis was done through descriptive statistics (SPSS). The study findings revealed that harsh environmental factors contributing to poor academic performance through sexual harassment by pest teachers, longer distance of a female pupils form schools that affect pupils attendance and drop out, Shortage of teaching and learning resources as well as facilities i.e. text books, library and shortage of latrines  while teaching and learning it is difficult for them to deriver pedagogical principal of teaching following large class size 68-80, and the bias attitude of the teacher towards subject matter that girls are always do performs poor in science subjects than boys. Finally, the study recommends that the government should build hostels for standard six and seven female pupils for solving the issue of long distance and drop out. Good and enough latrines should be built for girls and boys. Teachers should be well trained in order to handle girls well and also government should organize regular workshops for teachers. Either girls pupils should all the time helped by both male and female teachers in their problems and academic matters openly to avoid bias and mistrust among male teachers.


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