Sports medicine international open最新文献_第9页

Lack of a Dose Response from 7 Days of Ischemic Preconditioning in Moderately trained Cyclists. 中度训练的自行车运动员7天缺血预处理缺乏剂量反应。

Sports medicine international open Pub Date : 2018-09-07 eCollection Date: 2018-07-01 DOI: 10.1055/a-0639-5035

Angus Lindsay, Carl Petersen, Hamish Ferguson, Gavin Blackwell, Stephen Rickerby

{"title":"Lack of a Dose Response from 7 Days of Ischemic Preconditioning in Moderately trained Cyclists.","authors":"Angus Lindsay, Carl Petersen, Hamish Ferguson, Gavin Blackwell, Stephen Rickerby","doi":"10.1055/a-0639-5035","DOIUrl":"https://doi.org/10.1055/a-0639-5035","url":null,"abstract":"Ischemic preconditioning (IP) has a small benefit on exercise performance, but differences in the IP method, performance tasks and exercise modality have made providing practical coach guidelines difficult. We investigated the performance-enhancing effects of IP on cyclists by comparing the frequency of IP application over a 7-day period. Using a randomized, sham-controlled, single-blinded experiment, 24 competitive age-group track cyclists (38±12 years) were assigned to one of three twice-daily (sham: 20 and 20 mmHg; once-a-day: 20 and 220 mmHg; twice-a-day: 220 and 220 mmHg) IP leg protocols (4 × 5 min ischemia/5 min reperfusion alternating between legs) over seven consecutive days. A 4000-m cycling-ergometer time trial was completed before, immediately following and one week after the protocols. Neither mean power, nor 4000-m performance time nor VO 2 were significantly affected by either of the IP protocols compared to the sham at any time point following treatment. Repeated application of IP over seven days did not enhance the performance of trained cyclists in a 4000-m laboratory time trial. More research is required to understand how changes to methodological variables can improve the chances of IP successfully enhancing athlete performance.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"2 4","pages":"E91-E97"},"PeriodicalIF":0.0,"publicationDate":"2018-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-0639-5035","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36816632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Effects of Backpack Load and Trekking Poles on Energy Expenditure During Field Track Walking. 背包负荷和登山杖对田径运动中能量消耗的影响

Sports medicine international open Pub Date : 2018-09-06 eCollection Date: 2018-07-01 DOI: 10.1055/a-0637-8719

João Paulo Brito, Nuno Garrido, Félix Romero, Adenilson Targino de Araújo Junior, Victor Machado Reis

{"title":"Effects of Backpack Load and Trekking Poles on Energy Expenditure During Field Track Walking.","authors":"João Paulo Brito, Nuno Garrido, Félix Romero, Adenilson Targino de Araújo Junior, Victor Machado Reis","doi":"10.1055/a-0637-8719","DOIUrl":"10.1055/a-0637-8719","url":null,"abstract":"This study evaluates the effects of the use of backpack load and trekking poles on field track walking energy expenditure. Twenty male volunteer pole walkers (age: 22.70±2.89 years; body mass: 77.90±11.19 kg; height: 1.77±0.06 m; percentage of body fat: 14.6±6.0%) walked at a self-selected pace on a pedestrian field track over a period of more than six months. Each subject was examined at random based on four walking conditions: non-poles and non-load, with poles and non-load, non-poles and with load, with poles and with load. Heart rate, oxygen uptake and energy expenditure were continuously recorded by a portable telemetric system. Non-load walking speed was lower during walking with poles when compared with no poles ( p ≤0.05). Oxygen uptake, energy expenditure and heart rate varied significantly across different conditions. Our results suggest that the use of trekking poles does not influence energy expenditure when walking without an additional load, but it can have an effect during backpack load walking. Moreover, our results indicate that the use of trekking poles may not be helpful to lower the exertion perceived by the subjects when walking with an additional load.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"2 4","pages":"E117-E122"},"PeriodicalIF":0.0,"publicationDate":"2018-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/c1/67/10-1055-a-0637-8719.PMC6259461.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36773106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Influence of Oxygen Saturation on the Relationship Between Hemoglobin Mass and VO ₂ max. 血氧饱和度对血红蛋白质量与vo2max关系的影响。

Sports medicine international open Pub Date : 2018-09-06 eCollection Date: 2018-07-01 DOI: 10.1055/a-0655-7207

Jesse A Goodrich, Benjamin J Ryan, William C Byrnes

{"title":"The Influence of Oxygen Saturation on the Relationship Between Hemoglobin Mass and VO 2 max.","authors":"Jesse A Goodrich, Benjamin J Ryan, William C Byrnes","doi":"10.1055/a-0655-7207","DOIUrl":"https://doi.org/10.1055/a-0655-7207","url":null,"abstract":"Hemoglobin mass (tHb) is a key determinant of maximal oxygen uptake (VO 2 max). We examined whether oxyhemoglobin desaturation (ΔS a O 2 ) at VO 2 max modifies the relationship between tHb and VO 2 max at moderate altitude (1,625 m). Seventeen female and 16 male competitive, endurance-trained moderate-altitude residents performed two tHb assessments and two graded exercise tests on a cycle ergometer to determine VO 2 max and ΔS a O 2 . In males and females respectively, VO 2 max (ml·kg -1 ·min -1 ) ranged from 62.5-83.0 and 44.5-67.3; tHb (g·kg -1 ) ranged from 12.1-17.5 and 9.1-13.0; and S a O 2 at VO 2 max (%) ranged from 81.7-94.0 and 85.7-95.0. tHb was related to VO 2 max when expressed in absolute terms and after correcting for body mass (r=0.94 and 0.86, respectively); correcting by ΔS a O 2 did not improve these relationships (r=0.93 and 0.83). Additionally, there was a negative relationship between tHb and S a O 2 at VO 2 max (r=-0.57). In conclusion, across a range of endurance athletes at moderate altitude, the relationship between tHb and VO 2 max was found to be similar to that observed at sea level. However, correcting tHb by ΔS a O 2 did not explain additional variability in VO 2 max despite significant variability in ΔS a O 2 ; this raises the possibility that tHb and exercise-induced ΔS a O 2 are not independent in endurance athletes.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"2 4","pages":"E98-E104"},"PeriodicalIF":0.0,"publicationDate":"2018-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-0655-7207","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36816633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 18

Tuck Jump Assessment as an Indicator for Upper Extremity Injury. 塔跳评价作为上肢损伤的指标。

Sports medicine international open Pub Date : 2018-09-06 eCollection Date: 2018-07-01 DOI: 10.1055/a-0655-7345

Jeff W Barfield, Gretchen D Oliver

{"title":"Tuck Jump Assessment as an Indicator for Upper Extremity Injury.","authors":"Jeff W Barfield, Gretchen D Oliver","doi":"10.1055/a-0655-7345","DOIUrl":"https://doi.org/10.1055/a-0655-7345","url":null,"abstract":"The purpose of this study was to determine if tuck jumps can be used as a dynamic movement assessment to ascertain a previous history of upper extremity injury in an overhead throwing sport. Seventy-one youth baseball and softball athletes (28 baseball/43 softball; 12.41±2.22 yrs.; 161.98±13.65 cm; 59.17 ± 14.90 kg) were recruited to participate and were placed in either the previous injury (N=18) or no previous injury (N=53) groups. Kinematic data were collected from jumps 4 through 8 during a trial of 10 tuck jumps performed at 100 Hz using an electromagnetic tracking system (trakSTAR TM , Ascension Technologies, Inc., Burlington, VT, USA) synced with the MotionMonitor ® (Innovative Sports Training, Chicago, IL, USA). A logistic regression showed no significance in trunk flexion or upper leg elevation in the ability to determine upper extremity injury ( χ 2 (1, N =71)=3.55, p =0.315). In conclusion, examining only trunk flexion and upper leg elevation during the tuck jump assessment (TJA) is not enough for clinicians to recognize previous upper extremity injury. Even though the body behaves as a kinetic chain, simplifying the dynamic movement assessment while not specifying the type of upper extremity injury is not favorable for the clinician to identify previous injury.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"2 4","pages":"E113-E116"},"PeriodicalIF":0.0,"publicationDate":"2018-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-0655-7345","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36816635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Accelerated Decline in Javelin Throwing Performance in Master Athletes 70 Years and Older - Do Changes in Technique Play a Role? 70岁及以上高龄运动员标枪投掷成绩加速下降——技术变化是否起作用?

Sports medicine international open Pub Date : 2018-08-27 eCollection Date: 2018-06-01 DOI: 10.1055/a-0635-0584

Bergita Ganse, Hans Degens

{"title":"Accelerated Decline in Javelin Throwing Performance in Master Athletes 70 Years and Older - Do Changes in Technique Play a Role?","authors":"Bergita Ganse, Hans Degens","doi":"10.1055/a-0635-0584","DOIUrl":"https://doi.org/10.1055/a-0635-0584","url":null,"abstract":"While many older adults are immobile and frail, others still participate in competitive sports. World records of javelin throw decrease with increasing age. It is, however, unknown 1) whether the decline is linear or, as in sprint performance, accelerates beyond the age of 69; and 2) to what extent frailty-related changes in throwing technique contribute to decreasing performance. We plotted current world records against age and assessed the performance of 27 male javelin throwers 69 years and older during three master athletics championships. Three to six throws were filmed, and the best throw of each athlete selected. A step-wise linear regression was applied to assess contributions of age, angle of release, angle of attitude, angle of attack and elbow angle just before the pull to performance. The ageing-related decline in javelin-throw performance accelerated after age 69. Age was the main predictor of performance (adjusted R 2 =0.68), with a small contribution of elbow angle (adjusted R 2 increased to 0.76) and angle of attack (R 2 =0.82; all P<0.001) in the older athletes. None of the technique-related parameters correlated with age. Although the technique had some influence on javelin-throwing performance, the accelerated decline was not associated with a characteristic ageing-related change in technique.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"2 3","pages":"E79-E83"},"PeriodicalIF":0.0,"publicationDate":"2018-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-0635-0584","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36816630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Pre-season Fitness Level and Injury Rate in Professional Soccer - A Prospective Study. 职业足球季前体能水平与受伤率的前瞻性研究。

Sports medicine international open Pub Date : 2018-08-22 eCollection Date: 2018-06-01 DOI: 10.1055/a-0631-9346

Eyal Eliakim, Ofer Doron, Yoav Meckel, Dan Nemet, Alon Eliakim

{"title":"Pre-season Fitness Level and Injury Rate in Professional Soccer - A Prospective Study.","authors":"Eyal Eliakim, Ofer Doron, Yoav Meckel, Dan Nemet, Alon Eliakim","doi":"10.1055/a-0631-9346","DOIUrl":"https://doi.org/10.1055/a-0631-9346","url":null,"abstract":"The aim of the present study was to assess prospectively the effect of pre-season fitness on injury rate during the competitive season among professional soccer players. Thirty-one players participated in the study during two consecutive competitive seasons (2015-16 and 2016-17; a squad of 22 players in each season). During the 6-week pre-season training period (8 training sessions and a friendly match every week, 14-18 training hours/week) there was a significant improvement in VO 2 max, a significant increase in ideal and total sprint time and no change in vertical jump, flexibility and repeated sprint-test performance decrement. During the two consecutive seasons, 28 injuries were recorded. Ten injuries were classified as mild (missing 3-7 days of practice/match), 8 as moderate (missing 8-28 days) and 10 as severe (missing >28 days). The rate of match injuries was higher (9.4 per 1000 match hours) compared to practice injuries (4.7 per 1000 training hours). Most injuries were overuse injuries (72%) of the lower limbs (71%). Most of match injuries occurred during the last 15 min of each half. There were no differences in fitness characteristics in the beginning of pre-season training between injured and non-injured players. However, improvements in VO 2 max during the pre-season training period were significantly lower among injured players (0.9±5.5%) compared to non-injured players (10.4±6.5%, p<0.05). Our results emphasize the importance of pre-season training in professional soccer players not only for improvement in fitness but also for injury prevention during the following competitive season.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"2 3","pages":"E84-E90"},"PeriodicalIF":0.0,"publicationDate":"2018-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-0631-9346","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36816631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 27

Metabolic and Performance Responses to Sprint Exercise under Hypoxia among Female Athletes. 低氧条件下女性运动员短跑运动的代谢和表现反应。

Sports medicine international open Pub Date : 2018-08-22 eCollection Date: 2018-06-01 DOI: 10.1055/a-0628-6100

Nobukazu Kasai, Chihiro Kojima, Kazushige Goto

{"title":"Metabolic and Performance Responses to Sprint Exercise under Hypoxia among Female Athletes.","authors":"Nobukazu Kasai, Chihiro Kojima, Kazushige Goto","doi":"10.1055/a-0628-6100","DOIUrl":"https://doi.org/10.1055/a-0628-6100","url":null,"abstract":"The present study determined metabolic and performance responses to repeated sprint exercise under hypoxia among female team-sport athletes. Fifteen female athletes (age, 20.7±0.2 years; height, 159.6±1.7 cm; body weight, 55.3±1.4 kg) performed two exercise trials under either a hypoxic [HYPO; fraction of inspired oxygen (F i O 2 ), 14.5%] or normoxic (NOR; F i O 2 , 20.9%) condition. The exercise consisted of two sets of 8×6-s maximal sprint (pedaling). The average power output was not significantly different between trials for set 1 ( P =0.89), but tended to be higher in the NOR trial for set 2 ( P =0.05). The post-exercise blood lactate concentrations were significantly higher in the HYPO trial than that in the NOR trial ( P <0.05). Exercise significantly increased serum growth hormone (GH) and cortisol concentrations ( P <0.01 for both hormones), with no difference between the trials. In conclusion, repeated short-duration sprints interspaced with 30-s recovery periods in moderate hypoxia caused further increase in blood lactate compared with the same exercise under normoxic conditions among female team-sport athletes. However, exercise-induced GH and cortisol elevations or power output during exercise were not markedly different regardless of the different levels of inspired oxygen.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"2 3","pages":"E71-E78"},"PeriodicalIF":0.0,"publicationDate":"2018-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-0628-6100","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36816629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

The Polar ^® OH1 Optical Heart Rate Sensor is Valid during Moderate-Vigorous Exercise. Polar®OH1光学心率传感器适用于中度剧烈运动。

Sports medicine international open Pub Date : 2018-06-17 eCollection Date: 2018-06-01 DOI: 10.1055/a-0631-0920

Matthew M Schubert, Amy Clark, Annie B De La Rosa

{"title":"The Polar ® OH1 Optical Heart Rate Sensor is Valid during Moderate-Vigorous Exercise.","authors":"Matthew M Schubert, Amy Clark, Annie B De La Rosa","doi":"10.1055/a-0631-0920","DOIUrl":"https://doi.org/10.1055/a-0631-0920","url":null,"abstract":"Purpose: Traditional heart-rate monitoring through the use of electrocardiograms or chest-worn heart rate sensors can be challenging in certain sports or in field settings. New technologies, such as photoplethysmography (PPG), have enabled heart-rate monitoring at alternate sites. However, to date, the accuracy and validity of various PPG sensors has not been examined in detail. The purpose of the present investigation was to determine the validity of an arm-worn PPG sensor during yoga sequences.Methods: Fifteen college-aged men and women participated in a ~45 min power vinyasa yoga class. During the class, participants wore Polar ® H7 chest straps and RCX3 receivers (criterion) and Polar ® OH1 arm bands on their upper right arm (practical). Mean differences were compared via a paired t -test, heart rate during yoga using a time*device repeated measures ANOVA, and agreement assessed with Bland-Altman analysis.Results: Mean heart rates during yoga were not different (mean difference=0.76, 95% CI: -0.54 to 2.06; p =0.229). Yoga created a main effect of time on heart rate ( p <0.0001), but there was no difference between devices ( p =0.86) or interaction ( p =0.90). Mean bias±95% limits of agreement was 0.76±1.30 bpm, with a typical error of 2.42±1.49 bpm and a coefficient of variation of 1.8±1.5%.Conclusions: Results of the present investigation revealed that the Polar ® OH1 is a valid measure of heart rate during moderate-vigorous exercise. Future validation studies should consider other exercise modes and participant characteristics.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"2 3","pages":"E67-E70"},"PeriodicalIF":0.0,"publicationDate":"2018-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-0631-0920","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36816628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 32

Intrinsic and Extrinsic Motives Support Adults' Regular Physical Activity Maintenance. 支持成年人保持定期体育锻炼的内在和外在动机。

Sports medicine international open Pub Date : 2018-06-17 eCollection Date: 2018-06-01 DOI: 10.1055/a-0620-9137

Karly Geller, Kate Renneke, Sarah Custer, Grace Tigue

{"title":"Intrinsic and Extrinsic Motives Support Adults' Regular Physical Activity Maintenance.","authors":"Karly Geller, Kate Renneke, Sarah Custer, Grace Tigue","doi":"10.1055/a-0620-9137","DOIUrl":"10.1055/a-0620-9137","url":null,"abstract":"Motives for physical activity were compared between adults who either successfully or unsuccessfully maintained regular physical activity over the last 10 years. Adults age 28-45 (N=721) completed an online survey, reporting their current physical activity levels and self-determination theory (SDT) motives, as well as their physical activity levels at least 10 years prior. With participants' current and retrospective reports of their physical activity, four sample subgroups were created, including maintainers, improvers, decliners, and sedentary. ANOVA analyses were used to examine differences in motives between physical activity maintenance groups. Those who successfully maintained regular physical activity (maintainers) reported higher intrinsic and extrinsic motives compared to those who were not regularly active ( P <0.05). Interestingly, maintainers reported similar physical activity motives compared to those who reported increased physical activity over time. Among the current sample and consistent with theory, motives for physical activity significantly influenced participants' long-term maintenance of regular physical activity. Future interventions should consider these constructs to promote sustained physical activity.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"2 3","pages":"E62-E66"},"PeriodicalIF":0.0,"publicationDate":"2018-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/cf/1b/10-1055-a-0620-9137.PMC6225965.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36771157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Wearing Colored Glasses can Influence Exercise Performance and Testosterone concentration? 戴有色眼镜会影响运动表现和睾酮浓度吗？

Sports medicine international open Pub Date : 2018-06-05 DOI: 10.1055/a-0601-7250

André M Londe, Moacir Marocolo, Isabela Coelho Marocolo, James Fisher, Octavio Barbosa Neto, Markus Vinicius Campos Souza, Gustavo Ribeiro da Mota

{"title":"Wearing Colored Glasses can Influence Exercise Performance and Testosterone concentration?","authors":"André M Londe, Moacir Marocolo, Isabela Coelho Marocolo, James Fisher, Octavio Barbosa Neto, Markus Vinicius Campos Souza, Gustavo Ribeiro da Mota","doi":"10.1055/a-0601-7250","DOIUrl":"10.1055/a-0601-7250","url":null,"abstract":"Perception of red color is associated with higher testosterone concentration and better human performance. Thus, we evaluated the acute effects of wearing colored-lens glasses on the YoYo intermittent endurance exercise test 2 (YoYoIE2) performance indicators and testosterone concentration. Ten soccer players performed three YoYoIE2 (counterbalanced crossover) wearing colorless (control), blue- or red-lensed glasses (2-4 days of rest in between). YoYoIE2 performance did not differ among the trials ( p >0.05), but blood testosterone increased post-exercise in red compared to red baseline (red=14%, effect size=0.75). Analysis showed faster heart rate recovery ( p <0.05) at 1 min post-test for blue compared to red lenses. Rating of perceived exertion and blood lactate concentration did not differ ( p >0.05) among the trials. Wearing red-colored lenses during high-intensity intermittent exercise increased testosterone concentration, but do not influence performance.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"2 2","pages":"E46-E51"},"PeriodicalIF":0.0,"publicationDate":"2018-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-0601-7250","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"36771156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7