Morphological Characteristics and Performance Variables of Women Soccer Players

2004 ◽  
Vol 18 (3) ◽  
pp. 480 ◽  
Author(s):  
Filiz Can ◽  
Ilker Yilmaz ◽  
Zafer Erden
Keyword(s):  
Morphological Characteristics ◽  
Soccer Players ◽  
Performance Variables ◽  
And Performance

scholarly journals Effects of Rest Position on Morphology of the Vastus Lateralis and Its Relationship with Lower-Body Strength and Power

2019 ◽  
Vol 4 (3) ◽  
pp. 64 ◽  
Author(s):  
Alyssa N. Varanoske ◽  
Nicholas A. Coker ◽  
Bri-Ana D.I. Johnson ◽  
Tal Belity ◽  
Gerald T. Mangine ◽  
...  
Keyword(s):  
Vastus Lateralis ◽  
Morphological Characteristics ◽  
Muscle Thickness ◽  
Lower Body ◽  
Echo Intensity ◽  
Cross Sectional ◽  
Performance Variables ◽  
Body Strength ◽  
And Performance ◽  
Subcutaneous Adipose

Ultrasonography of the lower body typically encompasses supine rest due to fluid shifts affecting tissue size and composition. However, vastus lateralis (VL) examination is completed in the lateral recumbent position, and this positional change may influence morphology and its ability to predict function. This study aimed to examine the effect of position on VL morphology and its relationship with lower-body performance. Cross-sectional area (CSA), muscle thickness (MT), pennation angle (PA), echo intensity (UnCorEI), subcutaneous adipose tissue thickness (SFT), and echo intensity corrected for SFT (CorEI) were assessed in 31 resistance-trained males (23.0 ± 2.1 yrs; 1.79 ± 0.08 m; 87.4 ± 11.7 kg) immediately after transitioning from standing to supine (IP), after 15 min of standing (ST), and after 15 min of rest in three recumbent positions: supine (SUP), dominant lateral recumbent (DLR), non-dominant lateral recumbent (NDLR). Participants also completed unilateral vertical jumps, isometric/isokinetic tests, and a one-repetition maximum leg press. CSA, MT, PA, and SFT were greater in ST compared to NDLR, DLR, and SUP (p < 0.05). CSA, UnCorEI, and CorEI were different between recumbent positions; however no differences were observed for MT, PA, and SFT. Different magnitudes of relationships were observed between muscle morphological characteristics measured after rest in different positions and performance variables. Muscle morphology in IP generally appears to be the best predictor of performance for most variables, although utilizing the NDLR and DLR positions may provide comparable results, whereas morphology measured in ST and SUP provide weaker relationships with physical performance. IP also requires less time and fewer requirements on the technician and subject, thus researchers should consider this positioning for VL examination.

Association Between the Force–Velocity Profile and Performance Variables Obtained in Jumping and Sprinting in Elite Female Soccer Players

2019 ◽  
Vol 14 (2) ◽  
pp. 209-215 ◽  
Author(s):  
Ramón Marcote-Pequeño ◽  
Amador García-Ramos ◽  
Víctor Cuadrado-Peñafiel ◽  
Jorge M. González-Hernández ◽  
Miguel Ángel Gómez ◽  
...  
Keyword(s):  
Velocity Profile ◽  
Soccer Players ◽  
Performance Variables ◽  
Force Velocity ◽  
And Performance

Physical and performance variables for talent identification in water polo

2020 ◽  
Vol 60 (10) ◽  
Author(s):  
Valerio Viero ◽  
Tamara Triossi ◽  
Daniele Bianchi ◽  
Alessandro Campagna ◽  
Giovanni Melchiorri
Keyword(s):  
Talent Identification ◽  
Performance Variables ◽  
Water Polo ◽  
And Performance

PSIV-2 A comparison of feedlot growth and performance of beef x Holstein crossbred steers and Holstein steers

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 298-299
Author(s):  
Bailey L Basiel ◽  
Chad D Dechow ◽  
Tara L Felix
Keyword(s):  
Feed Intake ◽  
Feed Efficiency ◽  
Average Daily Gain ◽  
Corn Silage ◽  
Department Of Agriculture ◽  
Feedlot Performance ◽  
Performance Variables ◽  
Dried Distillers Grains ◽  
And Performance ◽  
Daily Gain

Abstract Objectives were to compare feedlot performance and carcass traits of F1 beef × Holstein steers and Holstein steers. Angus or Limousin × Holstein crossbred [n = 27; age = 12 ± 3 months; body weight (BW) = 435 ± 8 kg] and Holstein (n = 20; age = 11 ± 2 months; BW = 400 ± 9 kg) steers were fed at the Pennsylvania Department of Agriculture Livestock Evaluation Center for 111 days. Feed intake was recorded using the GrowSafe Feed Intake Monitoring System (Model 4000E, GrowSafe Systems Ltd., Calgary AB, Canada). The diet contained corn silage, dried distillers grains, soybean meal, and cracked corn and was formulated to meet or exceed the requirements of beef cattle (NASEM, 2016). Growth performance variables of interest and carcass measurements were analyzed with the Mixed procedure of SAS (SAS 9.4; SAS Institute Inc., Cary, NC). USDA assigned quality grades (QG) and yield grades (YG) were analyzed the with GLIMMIX procedure of SAS. Breed was a fixed effect in all models. There were no differences (P &gt; 0.05) between breeds in average daily gain or feed efficiency. Crossbreds exceeded Holsteins in initial (P &lt; 0.01) and final BW (P = 0.01), dry matter intake (P = 0.03), hot carcass weight (P &lt; 0.01), backfat (P = 0.03), and ribeye area (REA; P &lt; 0.01). Thirty-five percent (35%) of the Holsteins received a QG of Choice or above while 74% of crossbreds graded USDA Choice or above (P = 0.01). However, 75% of Holsteins were YG 2 or lower while only 45% of crossbreds achieved YG 2 or less (P = 0.05). There was no improvement in efficiency when crossbreds were compared to Holsteins; however, carcasses from crossbreds were more likely to grade USDA Choice or above while yielding greater REA and backfat than Holsteins.

The Development of Sweden's R&D-Intensive Electronics Industries: Exports, Outsourcing, and Territorial Distribution

1996 ◽  
Vol 28 (5) ◽  
pp. 783-817 ◽  
Author(s):  
L Suarez-Villa ◽  
C Karlsson
Keyword(s):  
Export Performance ◽  
Plant Size ◽  
Production Costs ◽  
Export Market ◽  
Small Scale ◽  
Performance Variables ◽  
Continuous Innovation ◽  
Spatial Differences ◽  
And Performance ◽  
Employment Characteristics

Sweden's research-intensive electronics industries have thrived by developing export-market niches that rely greatly on continuous innovation and substantial expenditures in R&D. Over the past two decades, three R&D-intensive sectors (telecommunications equipment, electronic instruments, and computing-equipment manufacturing) have experienced a progressive territorial distribution, that has made them less reliant on the metropolitan concentration of the capital for their outsourcing and research arrangements. In this article we explore the relationship between R&D intensity, territorial distribution, subcontracting, and establishment performance in the R&D-intensive electronics industries. The export performance of these industries is considered first, along with its relationship with employment characteristics and territorial location. An analysis of the territorial distribution, and its relationship with establishment downsizing and subcontracting, provides insights on the significance of lower costs and higher R&D intensity for small-scale operations. Statistical analyses of R&D intensity and performance variables that include labour skills, plant size, production costs, fixed capital assets, and profitability, with establishment-level survey data, provide important insights on the effects of subcontracting and any spatial differences resulting thereof.

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