Mathewsgundersen6013

Sánchez-Moreno, M, Cornejo-Daza, PJ, González-Badillo, JJ, and Pareja-Blanco, F. Effects of velocity loss during body mass prone-grip pull-up training on strength and endurance performance. J Strength Cond Res 34(4) 911-917, 2020-This study aimed to analyze the effects of 2 pull-up (PU) training programs that differed in the magnitude of repetition velocity loss allowed in each set (25% velocity loss "VL25" vs. 50% velocity loss "VL50") on PU performance. Twenty-nine strength-trained men (age = 26.1 ± 6.3 years, body mass [BM] = 74.2 ± 6.4 kg, and 15.9 ± 4.9 PU repetitions to failure) were randomly assigned to 2 groups VL25 (n = 15) or VL50 (n = 14) and followed an 8-week (16 sessions) velocity-based BM prone-grip PU training program. Mean propulsive velocity (MPV) was monitored in all repetitions. Assessments performed at pre-training and post-training included estimated 1 repetition maximum; average MPV attained with all common external loads used during pre-training and post-training testing (AVinc); peak MPV lifting one's own BM (MPVbest); maximum number of repetitions to failure lifting one's own BM (MNR); and average MPV corresponding to the same number of repetitions lifting one's own BM performed during pre-training testing (AVMNR). VL25 attained significantly greater gains than VL50 in all analyzed variables except in MNR (P less then 0.05). In addition, VL25 improved significantly (P less then 0.001) in all the evaluated variables while VL50 remained unchanged. In conclusion, our results suggest that once a 25% velocity loss is achieved during PU training, further repetitions did not elicit additional gains and can even blunt the improvement in strength and endurance performance.OBJECTIVES Functional abdominal pain disorders (FAPDs) and functional defecation disorders (FDDs) are common in children and adolescents, but prevalence rates from the Caribbean are lacking. Therefore, our aim was to determine the prevalence of FAPDs and FDDs in adolescents in Curacao and to assess the influence of psychosocial factors on the prevalence of FAPDs and FDDs. METHODS The prevalence of FAPDs and FDDs in children and adolescents living in Curacao, ages 11 to 18 years, was assessed using the Rome IV Questionnaire on Pediatric Gastrointestinal Disorders (RIV-QPGD). FAPDs and FDDs were diagnosed according to the Rome IV criteria. Sociodemographic characteristics, somatic symptoms, early adverse life events, stressful life events, and physical and emotional abuse were evaluated as associated factors. RESULTS Out of 946 questionnaires distributed, 783 were included for further analysis. The mean age of adolescents was 14.7 years (±1.6) with 61.7% being girls. A total of 266 adolescents (34%, 95% confidence interval [CI] 30.7-37.5) met Rome IV criteria for at least 1 FAPD or FDD. Twenty-nine adolescents (3.7%) qualified for 2 functional gastrointestinal disorders. Functional constipation (18.6%) and irritable bowel syndrome (12.3%) were the most prevalent disorders. After multivariate logistic regression analyses, dizziness (odds ratio [OR] 1.84, 95% CI 1.28-2.64) was significantly associated with having a FAPD or FDD. CONCLUSIONS FAPDs and FDDs are common in adolescents in Curacao. Dizziness is associated with the presence of a FAPD or FDD.PURPOSE To compare the visual outcomes and optical quality of 2 presbyopia-correcting intraocular lenses (IOLs) with those of a monofocal IOL. SETTINGS Eye Center, the Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou, Zhejiang, China. DESIGN Prospective, nonrandomized, examiner-blinded cohort study. METHOD 113 eligible cataract patients were enrolled to be implanted with a Tecnis Symfony extended range of vision ZXR00, Oculentis zonal refractive multifocal LS-313 MF15 or a Oculentis monofocal L-313 IOL with a 3-month follow-up. Postoperative examinations included visual acuity at far, intermediate, and near distances, defocus curves, contrast sensitivity, wave-front aberrations, modulation transfer function (MTF), the Visual Function Index questionnaire (VF-14), the Quality of Vision questionnaire (QoV) and visual quality self-evaluation. RESULTS ZXR00 and LS-313 MF15 achieved a significantly better range of intermediate vergences (p less then 0.05), better distance corrected intermediate visual acuity (p≤0.001), higher VF-14 (p less then 0.05) and visual quality self-evaluation scores (p less then 0.05) than monofocal IOL, but there were no significant differences between those two presbyopia-correcting IOLs. ZXR00 provided lower total wave-front aberrations and better MTF than LS-313 MF15 as well as monofocal IOL (p less then 0.05) but demonstrated a worse QoV score (p less then 0.05), especially worse severity of halo (p less then 0.01) and starbursts (p less then 0.05) symptoms. CONCLUSION Symfony ZXR00 and LS-313 MF15 both offered a restored excellent and stable distance and intermediate visual acuity, good subjective visual function as well as good contrast sensitivity. ZXR00 provided better objective optical quality and more prominent dysphotopsia symptoms than LS-313 MF15.PURPOSE To evaluate the long-term effectiveness and safety of the XtraFocus intraocular pinhole when it is implanted inside the capsular bag. SETTING Private practice DESIGN Retrospective consecutive case series METHODS 60 eyes of 58 patients who had the intraocular pinhole implanted in the capsular bag together with the primary IOL to treat irregular corneal astigmatism secondary to multiple causes were enrolled. Mean follow-up was 16 months (range 7 to 48). Patients were assessed in their scheduled follow-up visits. Uncorrected and best-corrected visual acuity were recorded at each visit. An infrared slit-lamp photography was captured and analyzed to verify the presence of interlenticular membrane formation. RESULTS Mean uncorrected and best-corrected visual acuity improved from LogMAR 1.34 ± 0.338 and 0.57 ± 0.145 preoperatively to 0.14 ± 0.012 (p less then 0.001) and 0.12 ± 0.008 (p=0.001) postoperatively respectively one year after surgery. 4SC-202 Mild pinhole decentration was noted in 5 eyes (8.3%). Interlenticular opacification (ILO) was not noted in any patient.