bluuebunny/crossref_metadata_2025_split huggingface dataset:
Metabolic Profile of Reciprocal Supersets in Young, Recreationally Active Women and Men
Authors: Realzola Rogelio A. , Mang Zachary A. , Millender Desmond J. , Beam Jason R. , Bellovary Bryanne N. , Wells Andrew D. , Houck Jonathan M. , Kravitz Len 
Published: April 2021

Abstract
Realzola, RA, Mang, ZA, Millender, DJ, Beam, JR, Bellovary, BN, Wells, AD, Houck, JM, and Kravitz, L. Metabolic profile of reciprocal supersets in young, recreationally active females and males. J Strength Cond Res 36(10): 2709–2716, 2022—Reciprocal supersets (RSSs) are a time-efficient style of resistance exercise (RE) that consist of performing 2 consecutive exercises with opposing muscle groups while limiting rest times between them. Previous research in men indicates a RSS has an increased physiological response when compared with traditional RE (TRAD). No between-sex comparison of metabolic data for RSSs exists. The purpose of this study was to create a metabolic profile for RSSs in men and women. Eighteen resistance-trained individuals underwent 2 bouts of volume-load equated RE: RSS and TRAD. Reciprocal superset exercises were split into 3 clusters: (a) hexagonal bar deadlift superset with leg press, (b) chest press superset with seated row, and (c) overhead dumbbell press superset with latissimus dorsi pull-downs. The TRAD protocol, doing the same exercises, emulated hypertrophy emphasis training. Oxygen uptake (V̇o
2), heart rate (HR), blood lactate ([BLa]), rate of perceived exertion (RPE), and excess post-exercise oxygen consumption (EPOC) were measured. Aerobic and anaerobic energy expenditure were estimated using V̇o
2 and lactate, respectively. The level of significance set for this study was p ≤ 0.05. Regardless of sex, a RSS elicited significantly greater average V̇o
2, HR, [BLa], RPE, and anaerobic and aerobic energy expenditures, and was completed in a shorter time compared with TRAD (p ≤ 0.05). When compared with women, men had significantly greater EPOC, average [BLa], and anaerobic and aerobic energy expenditures during RSSs (p ≤ 0.05). The average [BLa] and aerobic energy expenditure of the men were also significantly greater than the women during TRAD (p ≤ 0.05). This study suggests that a RSS is a metabolically demanding RE session that may elicit increases in musculoskeletal, cardiorespiratory, and physiological adaptations while decreasing the duration of exercise.
Monitoring Prescribed and Actual Resistance Training Loads in Professional Rugby League
Authors: Redman Kellyanne J. , Connick Mark J. , Beckman Emma M. , Kelly Vincent G. 
Published: May 2021

Abstract
Redman, KJ, Connick, MJ, Beckman, EM, and Kelly, VG. Monitoring prescribed and actual resistance training loads in professional rugby league. J Strength Cond Res 35(6): 1604–1610, 2021—Coaches devote a considerable amount of time and effort prescribing and selecting exercises to elicit training adaptations. Adherence to the prescribed resistance training load may vary for a number of reasons. The aim of this study was to quantify the difference between prescribed and actual resistance training loads in a team of professional rugby league players. Training loads were quantified using volume load and training intensity throughout a season. The competition was categorized into preseason, early competition, mid-competition, and late competition. Twenty-seven players participated in this study. Four exercises were monitored: back squat, bench press, bench pull, and clean pull. A Friedman's test was used to assess differences between prescribed and actual training loads throughout different phases of the season, for different exercises, and during different weeks in a training block. There were significantly greater differences in prescribed and actual volume loads during the mid-competition in comparison to all other phases of the season (p < 0.01). Although players adherence to prescribed training intensity was significantly greater during the preseason compared with the remainder of the season (p < 0.05), they completed significantly less prescribed training load during week 1 in comparison to week 4 within a training block (p < 0.05). The results of this study demonstrate that regular monitoring of completed resistance training loads may be of greater importance to strength and conditioning coaches to assist in examining potential progress and fatigue or allow for more accurate prescription of load to enhance adaptation throughout a season.
Prediction of Anaerobic Power From Standing Long Jump in NCAA Division IA Football Players
Authors: Mann J. Bryan , Bird Michael , Signorile Joseph F. , Brechue William F. , Mayhew Jerry L. 
Published: April 2021

Abstract
Mann, JB, Bird, M, Signorile, JF, Brechue, WF, and Mayhew, JL. Prediction of anaerobic power from standing long jump in NCAA Division IA football players. J Strength Cond Res 35(6): 1542–1546, 2021—Despite the popularity of the standing long jump (SLJ), limited research has explored the estimation of power developed during this test. The purpose of this study was to determine SLJ power from jump distance and selected anthropometric measures in NCAA Division IA football players. Height (Ht), body mass (Wt), thigh length, and lower leg length (LL) were measured in 58 players, allowing calculation of leg ratios of thigh length·Ht−1, LL·Ht−1, and TL·SL−1. Players performed 2–3 maximal familiarization trials of SLJ followed by 2 maximal jumps from a 3-dimension force plate sampling at 1,000 Hz. Standing long jump distance (intraclass correlation coefficient [ICC] = 0.944) and power (ICC = 0.926) calculated from resultant force and velocity vectors were highly reliable. Standing Ht (r = 0.40), Wt (r = 0.36), lower leg length (r = 0.43), total leg length (thigh + LLs) (r = 0.38), and best SLJ (r = 0.52) were significantly related (p < 0.05) to peak power, but none accounted for more than 27% of the common variance. Step-wise multiple regression identified SLJ and body mass as the only significant variables necessary to predict peak power (Power [W] = 32.49·SLJ [cm] + 39.69·Wt [kg] − 7,608, R = 0.86, SEE = 488 W, CV% = 9.3%). Standing long jump contributed 56.8% to the known variance, whereas Wt contributed 43.2%. Thus, a combination of SLJ and Wt can be used to effectively estimate explosive power in Division IA college football players.
Supplemental O2 During Recovery Does Not Improve Repeated Maximal Concentric-Eccentric Strength-Endurance Performance in Hypoxia
Authors: Dünnwald Tobias , Morawetz David , Faulhaber Martin , Gatterer Hannes , Birklbauer Christina , Koller Arnold , Weiss Günter , Schobersberger Wolfgang 
Published: April 2021

Abstract
Dünnwald, T, Morawetz, D, Faulhaber, M, Gatterer, H, Birklbauer, C, Koller, A, Weiss, G, and Schobersberger, W. Supplemental O2 during recovery does not improve repeated maximal concentric-eccentric strength-endurance performance in hypoxia. J Strength Cond Res 36(11): 3065–3073, 2022—An alpine ski racing training session typically includes repeated bouts of maximal exercise at high altitude. We evaluated whether hyperoxic recovery between 5 sets of high-intensity strength-endurance exercises, which resembled ski racing activity and were performed in hypoxia, has beneficial effects on performance and acid-base status. In this randomized, single blinded crossover study, 15 highly skilled ski athletes (4 f/11 m; 29.7 ± 5.7 years) performed 5 90 seconds flywheel sets (S) in a normobaric hypoxic chamber (3,500 m). The flywheel sets were separated by 4 15-minute recovery periods. During recovery, subjects received either 100% O2 (hyperoxic setting [HS]) or hypoxic air (nonhyperoxic setting [NHS]; FiO2: 0.146). Performance outcomes (e.g., power output [PO], concentric peak power [Conpeak], and eccentric peak power [Eccpeak]) and physiological parameters (e.g., heart rate, blood gases, and blood lactate) were evaluated. Mean PO, Conpeak, and Eccpeak from S1 to S5 did not differ between settings (146.9 ± 45 W and 144.3 ± 44 W, 266.9 ± 80 W and 271.2 ± 78 W, and 271.0 ± 93 W and 274.1 ± 74 W for HS and NHS, respectively; p ≥ 0.05). SpO2, PaO2, and CaO2 were higher during recovery in HS than in NHS (p ≤ 0.001). Lactate levels were significantly lower in the last recovery phase in HS than in NHS (p = 0.016). Hyperoxic recovery has no impact on performance in a setting resembling alpine ski racing training. Positive effects on arterial oxygen content and cellular metabolism, as indicated by reduced blood lactate levels during recovery in the hyperoxic setting, seem to be insufficient to generate a direct effect on performance.
Development of the High School Sports Performance Program: Simple, Safe, and Successful
Authors: Kraemer William J. , Nitka Mike 
Published: April 2021

ABSTRACT
The development of sports performance classes revolutionized a strength and conditioning approach to physical education. Efficiently using short 50-minute class times with a highly organized structure and objectives for teaching a “strength movement” on 3 class days and speed and agility drills on the other 2 days, a course was created. The resulting sports performance program would impact both student-athletes as well as provide needed fitness components for other students. Positive results were observed in both fitness testing scores and athletic accomplishments. Such a program, with its simplicity and effective teaching by a strength and conditioning professional, reflected a new direction in physical education curriculums and enhanced the importance of strength and conditioning programs in high schools.
Turing–Hopf bifurcation and spatiotemporal patterns in a Gierer–Meinhardt system with gene expression delay
Authors: Zhao Shuangrui , Wang Hongbin , Jiang Weihua 
Published: April 2021

In this paper, we consider the dynamics of delayed Gierer–Meinhardt system, which is used as a classic example to explain the mechanism of pattern formation. The conditions for the occurrence of Turing, Hopf and Turing–Hopf bifurcation are established by analyzing the characteristic equation. For Turing–Hopf bifurcation, we derive the truncated third-order normal form based on the work of Jiang et al. [11], which is topologically equivalent to the original equation, and theoretically reveal system exhibits abundant spatial, temporal and spatiotemporal patterns, such as semistable spatially inhomogeneous periodic solutions, as well as tristable patterns of a pair of spatially inhomogeneous steady states and a spatially homogeneous periodic solution coexisting. Especially, we theoretically explain the phenomenon that time delay inhibits the formation of heterogeneous steady patterns, found by S. Lee, E. Gaffney and N. Monk [The influence of gene expression time delays on Gierer–Meinhardt pattern formation systems, Bull. Math. Biol., 72(8):2139–2160, 2010.]
Identifikasi Potensi Permudaan Alam Di Hutan Rawa Gambut Taman Hutan Raya Orang Kayo Hitam Provinsi Jambi Pasca Kebakaran Hutan
Authors: Tamin Rike Puspitasari , Ulfa Maria , Saleh Zuhratus 
Published: April 2021

AbstrakRegenerasi dan restorasi hutan rawa gambut merupakan hal yang sulit terjadi secara alami. Restorasi ekosistem bukan hanya membuat tegakan baru tetapi juga harus berbasis keanekaragaman hayati lokal untuk membuat peluang berhasilnya menjadi lebih tinggi. Tujuan dari penelitian ini adalah mendapatkan data mengenai potensi permudaan alam dalam rangka regenerasi dan restorasi lahan gambut di Tahura Orang Kayo Hitam pasca kebakaran hutan. Penelitian ini dilaksanakan selama 7 bulan, yaitu dari Maret sampai Oktober 2019 di Tahura Orang Kayo Hitam, Herbarium Fakultas Kehutanan Universitas Jambi dan Laboratorium Silvikultur dan Manajemen Universitas Jambi. Metode yang digunakan adalah kombinasi transek dengan garis berpetak. Hasil penelitian menunjukkan bahwa terdapat 29 jenis anakan alam yang tergabung dalam 19 famili tumbuhan. Jenis yang paling dominan adalah arang-arang (Diospyros mangiayi) diikuti oleh meranti bunga (Shorea teijsmanniana) dengan Indeks Nilai Penting (INP) berturut-turut sebesar 20,10% dan 19,33%. Indeks kekayaan Margaleff D= 4,88, indeks keanekaragaman Shannon-Wiener H’= 2,96 dan indeks Evennes E= 0,88. Nilai dari semua indeks menunjukkan kondisi permudaan alam yang cukup baik di Tahura Orang Kayo Hitam. Hal ini diharapkan mampu menjadi pendorong dalam restorasi ekosistem yang berbasis jenis lokal untuk masa depan hutan rawa gambut. Abstract Regeneration and restoration of peat swamp forests is a difficult thing to happen naturally. Ecosystem regeneration and restoration not only create new stands but must also be based on local biodiversity to make the chances of success even higher. The purpose of this study is to obtain data and information about the potential of seedlings for the regeneration and restoration of peatlands in Tahura Orang Kayo Hitam after forest fires. This research was conducted for 7 months from March to October 2019 with locations in Orang Kayo Hitam Tahura, Herbarium of the Faculty of Forestry at the University of Jambi and the University of Jambi's Silviculture and Management Laboratory. The most dominant types are arang-arang (Diospyros mangiayi) followed by meranti bunga (Shorea teijsmanniana) with Important Value Index (INP) respectively of 20.10% and 19.33%. Margaleff's Wealth Index D= 4, 88. The Shannon-Wiener Diversity Index shows a value of H 'of 2.96 and the Index of Evennes indicates a value of E= 0.88. The values obtained from all of the measured indices indicate the condition of natural regeneration which is quite good in Tahura Orang Kayo Hitam. This is expected to lead to local species-based ecosystem restoration for the future of peat swamp forests.
Platelet Function in CKD: A Systematic Review and Meta-Analysis
Authors: Baaten Constance C.F.M.J. , Sternkopf Marieke , Henning Tobias , Marx Nikolaus , Jankowski Joachim , Noels Heidi 
Published: May 2021

Significance Statement
Thrombotic and hemorrhagic complications frequently present in patients with CKD, and abnormalities in platelet function are central to thrombotic and hemorrhagic events. To clarify how CKD affects platelet function, the authors conducted a systematic review and meta-analysis of platelet activity in CKD, with a focus on nondialysis-induced effects. They found that, overall, the literature points to increased bleeding time and decreased platelet aggregation—in particular, an overall reduction in collagen-induced platelet aggregation—in patients with CKD. Also, they reviewed the literature for the effects of uremic toxins on platelet function, finding that ex vivo studies revealed both stimulatory and inhibitory effects, whereas eight of 12 uremic toxins tested in animal models mostly induced prothrombotic effects. Further investigation of platelet reactivity in CKD, especially during different CKD stages, is warranted.

Background
Patients with CKD are at high risk for thrombotic and hemorrhagic complications. Abnormalities in platelet function are central to these complications, but reports on platelet function in relation to CKD are conflicting, and vary from decreased platelet reactivity to normal or increased platelet responsiveness. The direct effects of uremic toxins on platelet function have been described, with variable findings.

Methods
To help clarify how CKD affects platelet function, we conducted a systematic review and meta-analysis of platelet activity in CKD, with a focus on nondialysis-induced effects. We also performed an extensive literature search for the effects of individual uremic toxins on platelet function.

Results
We included 73 studies in the systematic review to assess CKD’s overall effect on platelet function in patients; 11 of them described CKD’s effect on ex vivo platelet aggregation and were included in the meta-analysis. Although findings on platelet abnormalities in CKD are inconsistent, bleeding time was mostly prolonged and platelet adhesion mainly reduced. Also, the meta-analysis revealed maximal platelet aggregation was significantly reduced in patients with CKD upon collagen stimulation. We also found that relatively few uremic toxins have been examined for direct effects on platelets ex vivo; ex vivo analyses had varying methods and results, revealing both platelet-stimulatory and inhibitory effects. However, eight of the 12 uremic toxins tested in animal models mostly induced prothrombotic effects.

Conclusions
Overall, most studies report impaired function of platelets from patients with CKD. Still, a substantial number of studies find platelet function to be unchanged or even enhanced. Further investigation of platelet reactivity in CKD, especially during different CKD stages, is warranted.
Elevated Erythropoietin Receptor and Transforming Growth Factor-β1 Expression in Stenotic Arteriovenous Fistulae Used for Hemodialysis
Authors: IKEGAYA NAOKI , YAMAMOTO TATSUO , TAKESHITA AKIHIRO , WATANABE TAKUYA , YONEMURA KATSUHIKO , MIYAJI TAKEHIKO , OHISHI KAZUHISA , FURUHASHI MITSUYOSHI , MARUYAMA YUKITAKA , HISHIDA AKIRA 
Published: May 2021

Abstract.
The issue of whether recombinant human erythropoietin (rhEPO) increases thrombosis of arteriovenous (AV) fistulae used for hemodialysis remains unclear. Thrombosis often occurs at stenotic segments of fistulae where there is marked intimal hyperplasia and extracellular matrix accumulation. Increased expression of transforming growth factor-β1 (TGF-β1) has been shown to be involved in the development of atherosclerotic lesions by promoting intimal hyperplasia and extracellular matrix accumulation. To clarify the role of rhEPO in the development of stenosis of AV fistulae, this study examined expression of the erythropoietin receptor (EPO-R), TGF-β1, plasminogen activator inhibitor type 1 (PAI-1), cellular fibronectin containing an extra domain A (EDA+), and TGF-β1 mRNA, and assessed in situ rhEPO binding in tissue specimens from seven cutaneous veins and eight patent and seven stenosed portions of AV fistulae of patients undergoing dialysis. Prominent intimal hyperplasia was evident in the stenosed segments. Significant elevation in expression of EPO-R and TGF-β1 was noted in patent AV fistulae compared to the cutaneous veins. Significant enhancement of EPO-R and TGF-β expression was detected in the stenotic fistulae. Fibronectin EDA+ and PAI-1 expression was increased in intimal hyperplasia compared to patent fistulae and cutaneous veins. Elevated EPO-R expression was further confirmed by in situ binding of biotin-labeled rhEPO in stenosed tissue specimens. It is hypothesized that increased rhEPO binding due to elevated EPO-R expression contributes to the development of AV fistula stenosis caused by intimal hyperplasia and extracellular matrix accumulation in response to increased TGF-β1 expression in patients receiving hemodialysis.
Impact of Gender on Access to the Renal Transplant Waiting List for Pediatric and Adult Patients
Authors: GARG PUSHKAL P. , FURTH SUSAN L. , FIVUSH BARBARA A. , POWE NEIL R. 
Published: May 2021

Abstract.
While the public and policy-makers place a priority on equity in the organ allocation process, several studies suggest that women may be less likely than men to receive a renal transplant. However, the cause of this disparity and whether it exists among children with end-stage renal disease (ESRD) are unknown. To address these issues, two nationally representative cohorts of incident patients were examined: (1) 7594 adults with ESRD onset between 1986 and 1993 for whom detailed data were available from the medical record on health status; and (2) 3217 patients <20 yr old who developed ESRD between 1988 and 1993. Patients were followed from initiation of dialysis for up to 10 yr until first activation on the United Network of Organ Sharing renal transplant waiting list. Access to the list for female and male patients with ESRD was compared using Cox proportional hazards models with adjustment for demographic, socioeconomic, and clinical factors. Crude rates of wait-listing per 100 person-years of ESRD were lower for female patients than male patients in both the pediatric (28.89 versus 34.18) and adult (3.94 versus 6.54) populations. Despite adjustment for numerous confounding factors, this gender-based disparity persisted in multivariate analysis. Among children with ESRD, female patients were 14% less likely to be listed than male patients (relative hazard [RH] 0.86; 95% confidence interval [CI], 0.78 to 0.93), and in the adult group, women were 18% less likely to be activated for transplant than men (RH 0.82; 95% CI, 0.72 to 0.93). These findings suggest that female patients of all ages with ESRD face barriers in being activated for cadaveric renal transplantation. Greater attention to this issue is necessary to improve equity in the organ allocation system and potentially improve the outcomes of female patients with ESRD.
Renal Response to Tissue Injury
Authors: AGARWAL ANUPAM , NICK HARRY S. 
Published: May 2021

Abstract.
Heme oxygenase-1 (HO-1) is a microsomal enzyme involved in the degradation of heme, resulting in the generation of biliverdin, iron, and carbon monoxide. Recent attention has focused on the biologic effects of product(s) of this enzymatic reaction that have important antioxidant, anti-inflammatory, and cytoprotective functions. Induction of HO-1 occurs as an adaptive and beneficial response to a wide variety of oxidant stimuli, including heme, hydrogen peroxide, cytokines, growth factors, heavy metals, nitric oxide, and oxidized LDL. HO-1 has been implicated in several clinically relevant disease states, including transplant rejection, hypertension, acute renal injury, atherosclerosis, and others. Previous studies indicate a protective role for HO-1 in heme and non-heme-mediated models of acute renal injury using chemical inducers and inhibitors of HO-1. Studies in HO-1 knockout mice further corroborate these observations, highlighting the important role of HO-1 in the pathophysiology of acute renal injury. Expression of HO-1 has been linked to prolonged xenograft survival and is important in transplant rejection as well. More recently, the first known case of human HO-1 deficiency was reported with several phenotypical similarities to the mouse HO-1 knockout. The role of HO-1 has extended far beyond its initial description as an enzyme involved in heme degradation to being an important mediator in modulating adaptive and protective responses not only in renal injury, but in other organ systems as well.