0000000000337392

AUTHOR

Qian Chen

showing 2 related works from this author

Brain Cortical Complexity and Subcortical Morphometrics in Lifelong Premature Ejaculation

2020

Premature ejaculation (PE) is the most common male sexual dysfunction. The brain disturbances that cause this disorder remain poorly understood. This study aimed to investigate how the morphology of cortical and subcortical brain structures differed in PE, how these morphologic differences were associated with severity measures of PE, such as intravaginal ejaculatory latency time (IELT), and how these cortical and subcortical structures were causally connected through mediation analysis. Anatomical MRI scans were acquired from 39 male participants, 23 with PE (28.78 ± 4.32 years), and 16 without PE (27.88 ± 3.65 years). We used a subcortical analysis package within FSL to perform subcortica…

Thalamusgyrification index050105 experimental psychologylcsh:RC321-57103 medical and health sciencesBehavioral Neuroscience0302 clinical medicinePremature ejaculationmorphologymedicine0501 psychology and cognitive sciencesStatistical analysisRight nucleus accumbensmediation analysislcsh:Neurosciences. Biological psychiatry. NeuropsychiatryGyrificationBiological PsychiatryOriginal ResearchMorphometricsbusiness.industry05 social sciencesHuman NeuroscienceAnatomyComputational anatomyEjaculatory latencypremature ejaculationPsychiatry and Mental healthNeuropsychology and Physiological PsychologyNeurologymedicine.symptombusiness030217 neurology & neurosurgeryvertex analysisFrontiers in Human Neuroscience
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A New Fitness Test of Estimating VO2max in Well-Trained Rowing Athletes

2021

BackgroundThis study was designed to investigate the validity of maximal oxygen consumption (VO2max) estimation through the Firstbeat fitness test (FFT) method when using submaximal rowing and running programs for well-trained athletes.MethodsWell-trained flatwater rowers (n = 45, 19.8 ± 3.0 years, 184 ± 8.7 cm, 76 ± 12.9 kg, and 58.7 ± 6.0 mL⋅kg–1⋅min–1) and paddlers (n = 45, 19.0 ± 2.5 years, 180 ± 7.7 cm, 74 ± 9.4 kg, and 59.9 ± 4.8 mL⋅kg–1⋅min–1) completed the FFT and maximal graded exercise test (GXT) programs of rowing and running, respectively. The estimated VO2max was calculated using the FFT system, and the measured VO2max was obtained from the GXT programs. Differences between the…

Intraclass correlationPhysiologyRowingFast Fourier transformsoutu030204 cardiovascular system & hematologykuntotestitmaximal aerobic capacity03 medical and health sciences0302 clinical medicinePhysiology (medical)StatisticsTest programQP1-981treadmill runningflatwater paddlersMathematicsOriginal Researchhapenottorowingbiologysubmaximal fitness testAthletesVO2 max030229 sport sciencesbiology.organism_classificationflatwater rowersmittausmenetelmätmittaustekniikkaFitness testMean absolute percentage errormittarit (mittaus)juoksumatotaerobinen suorituskykyurheilijatFrontiers in Physiology
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