An Investigation of the Relationship Between Bench and Field Performance Tests

1987 ◽  
Author(s):  
Frederick L. Bayles ◽  
Michael S. Brenner
Keyword(s):  
Field Performance ◽  
Performance Tests ◽  
The Relationship

scholarly journals The Relationship Between Hockey Coaches And Performance Of National Athletes Of Pakistan

2016 ◽  
Vol 12 (14) ◽  
pp. 277
Author(s):  
Saeed Javed ◽  
Abd Rahim Bin Mohd Shariff ◽  
Abida Naseer
Keyword(s):  
Performance Test ◽  
Field Performance ◽  
Technical Skills ◽  
Primary Objective ◽  
Performance Tests ◽  
Survey Questionnaire ◽  
Field Hockey ◽  
Hockey Players ◽  
And Performance ◽  
The Relationship

The existing paper deals with a primary objective; to examine the relationship between hockey coaches and performance of field hockey players in socio-interaction approach. The secondary objective was to measure the field performance of hockey players on practical measures. The research methodology is based on both descriptive and inferential statistical approaches. The descriptive data was collected in the form of field performance tests (technical skills and fitness capabilities) while the inferential data perceived by players was collected using survey questionnaire. Adopted field performance test measures and survey questionnaire were employed. 296 national field hockey players of Pakistan were selected from national departments of field hockey as samples. The field performance tests and the relationship were analyzed using descriptive statistics and Pearson’s correlation analysis respectively. The results of the field performance tests were found below than average (weaker) in technical skills and fitness capabilities. However, the findings of the inferential analysis revealed that all constructs of hockey coaches have significant positive relationship with all variables of performance of field hockey players. The significance level was found at the 0.01 (2-tailed).

scholarly journals Shear Strength Characterization of Bauxite Deposits in Kuantan, East Coast Malaysia

2019 ◽  
Vol 8 (3S3) ◽  
pp. 404-407
Keyword(s):  
Shear Strength ◽  
Moisture Content ◽  
East Coast ◽  
Field Performance ◽  
Friction Angle ◽  
Parent Rock ◽  
Index Tests ◽  
Strength Characterization ◽  
The Relationship

Engineering characterization which are useful for "temperate" zone soils usually fail to predict the field performance of bauxitic soils, because the index tests upon which the characterization are based are not always reproducible for bauxitic soils. Fifteen (15) bauxitic soil of undisturbed and disturbed samples from 3 distinct sites in Kuantan, all derived from basalt parent rock but representing various stages of weathering were subjected to engineering and mineralogic tests. Values for cohesion and friction angles are evaluated. Soils from Semambu has the highest moisture content of 33.27%, the cohesion value is however lower compared to Bukit Goh which has moisture content of 21.74%. Study are further done to discover the relationship with cohesion and friction angles. Thus, by measuring the cohesion and friction angle can evaluate the performance of bauxite shear strength.

Improving the Selection of Candidates for Royal Marine Recruit Training by the use of a Combination of Performance Tests

2004 ◽  
Vol 90 (3) ◽  
pp. 117-124
Author(s):  
A. J. Allsopp ◽  
A. Shariff
Keyword(s):  
Assessment Tool ◽  
Objective Assessment ◽  
Performance Tests ◽  
Psychomotor Tests ◽  
Training Centre ◽  
Selection Strategies ◽  
Personal Qualities ◽  
Recruit Training ◽  
The Relationship ◽  
Selection Of

AbstractCandidates who wish to undertake Royal Marine recruit training, a physically strenuous course which now extends 32 weeks, must first of all successfully complete a Personal Qualities Assessment (PQA) and four psychomotor tests (Naval Recruiting Tests or RTs) before attending a three-day selection course at the Commando Training Centre, Lympstone, where their Physical capabilities are tested to the full. The effectiveness of theses procedures was untested until the Institute of Naval Medicine conducted a retrospective study during 1999-2000 from which the present study is taken.Data from 1232 recruits were examined to explore the relationship between the outcome of Commando training (pass or fail) with these various selection measures. Estimated aerobic power, time to complete the assault course and age were associated with outcome, as were PQA, RTs 1, 3, 4 and total RT score. A regression equation comprising aerobic fitness, assault course time, RT4 and age gave the best overall prediction of outcome (64%). It is suggested that this mathematical approach provides a scientifically valid and objective assessment tool for future selection strategies.

Design and Field Test of a New Compact Self-Propelled Cabbage Harvester

2019 ◽  
Vol 62 (5) ◽  
pp. 1243-1250 ◽  
Author(s):  
Dongdong Du ◽  
Jun Wang ◽  
Luxin Xie ◽  
Fanfei Deng
Keyword(s):  
Field Test ◽  
Field Tests ◽  
Field Performance ◽  
Performance Tests ◽  
Cultivation Method ◽  
Compact Field ◽  
Cutting Rate ◽  
Traditional Fields ◽  
Mechanical Harvester

Abstract. As a labor-intensive operation, manual harvesting greatly affects cost and therefore profitability in the cabbage industry. A new compact self-propelled cabbage harvester for small, separate fields was designed and field tested. This harvester included a crawler chassis, a picking mechanism, a lifting mechanism, a cutting device, and a leaf separator. Results of preliminary field tests showed that the harvester had good flexibility and maneuverability. Results of field performance tests showed that the harvester could pick cabbages with diameters of 15 to 25 cm, providing a harvesting capacity of 0.21 hm2 h-1 and a harvest loss of 10.2%. Compared with experiments conducted in traditional fields, harvest quality showed an improvement in fields with an experimental cultivation method. The harvest loss was reduced by 5.0%, while the picking rate and accurate cutting rate were improved by 3.0% and 5.4%, respectively. Keywords: Cabbage, Compact, Field test, Mechanical harvester, Self-propelled.

scholarly journals An Assessment of Storability of Norway Spruce Container Seedlings in Freezer Storage as Affected by Short-Day Treatment

Forests ◽  
2020 ◽  
Vol 11 (6) ◽  
pp. 692
Author(s):  
Johanna Riikonen ◽  
Jaana Luoranen
Keyword(s):  
Norway Spruce ◽  
Day Treatment ◽  
Field Performance ◽  
Matter Content ◽  
Dry Matter Content ◽  
Freezer Storage ◽  
Short Day ◽  
Chilling Hours ◽  
The Impact ◽  
The Relationship

Determination of safe times at which to transfer seedlings to freezer storage is problematic in forest tree nurseries. The present study aimed to determine the relationship between pre-storage frost hardiness (FH) of different plant parts, dry matter content (DMC), chilling hours (the sum of hours when temperature was between −5 °C and +5 °C), and post-storage vitality, and the impact of short-day (SD) treatment on these relationships. One and a half year old control seedlings and SD-treated seedlings of Norway spruce were transferred to freezer storage (−3 °C) on five occasions during autumn. On each occasion, the FH of buds, needles, stem, and roots, as well as DMC, were determined, and chilling hours were calculated. The vitality of the freezer-stored seedlings was determined through their root growth capacity in the subsequent spring, and through the field performance of the seedlings (shoot growth and seedling damage) at the end of the following two growing seasons. Seedlings were considered to be storable when the FH of the needles was at least −25 °C, and the FH of the roots was about −10 °C in both treatments. Early storage reduced the vitality of the seedlings. SD treatment did not advance the storability of the seedlings, although it alleviated some of the negative effects of early storage by improving the FH of needles and stem, but not that of the roots. The DMC value, indicating storability, was higher for SD-treated seedlings than for control seedlings. When data from five experiments conducted in Suonenjoki were combined, it was found that the relationship between accumulation of chilling hours and needle FH was dependent on nursery treatment and assessment year, which reduces the reliability of using chilling hours in predicting the storability of Norway spruce seedlings. The predicted climate change may complicate the fall acclimation of seedlings. New, user-friendly methods for determining storability of seedlings are urgently needed.

scholarly journals In-Field Performance of Biomass Balers

2020 ◽  
Vol 2 (4) ◽  
pp. 568-580
Author(s):  
Robert “Bobby” Grisso ◽  
Erin G. Webb ◽  
John S. Cundiff
Keyword(s):  
Field Data ◽  
Field Performance ◽  
Field Capacity ◽  
Maximum Throughput ◽  
Machine Performance ◽  
Time Motion ◽  
Management Concepts ◽  
Global Positioning ◽  
Motion Studies ◽  
The Relationship

Herbaceous biomass will contribute significantly to meeting renewable energy goals. Harvesting equipment for hay is generally suitable for mowing, raking, and baling grasses such as switchgrass; however, there is a need for field data to better understand machine performance in energy crops. The purpose of this study was to collect field data to estimate baler field capacity, throughput, and speed. Data gathered with a Differential Global Positioning System (DGPS) unit during baling provided time-motion studies of baler productivity. Six fields were used to compare field capacity, speed, and throughput results from four round balers and one large-square baler. The results show that in-field performance of round balers is significantly affected by yield, but that the relationship can be represented with machinery management concepts, knowledge of maximum throughput, and wrap-eject time. Baler performance will be overestimated if the yield, maximum throughput, and wrap-eject time are not correctly accounted for.

Upper-Extremity Physical-Performance Tests in College Athletes

2016 ◽  
Vol 25 (2) ◽  
pp. 146-154 ◽  
Author(s):  
Jeffrey B. Taylor ◽  
Alexis A. Wright ◽  
James M. Smoliga ◽  
J. Tyler DePew ◽  
Eric J. Hegedus
Keyword(s):  
Upper Extremity ◽  
Physical Performance ◽  
Outcome Measure ◽  
Division I ◽  
Normative Values ◽  
Performance Tests ◽  
Main Outcome Measure ◽  
Screening Battery ◽  
Division I Athletes ◽  
The Relationship

Context:Physical-performance tests (PPTs) are commonly used in rehabilitation and injury-prevention settings, yet normative values of upper-extremity PPTs have not been established in high-level athletes.Objective:To establish normative data values for the Closed Kinetic Chain Upper-Extremity Stability Test (CKCUEST) and Upper-Quarter Y-Balance Test (UQYBT) in college athletes and compare results between sports and to analyze the relationship between the 2 tests.Design:Observational.Setting:Laboratory/athletic facility.Participants:257 (118 male, 139 female) Division I athletes participating in basketball, soccer, baseball, lacrosse, volleyball, track and field, and cross-country.Intervention:CKCUEST and UQYBT scores were recorded as part of a comprehensive injury-risk screening battery.Main Outcome Measure:Pearson correlations assessed the relationship between all measures of the CKCUEST and UQYBT. A factorial ANOVA and a repeated-measures ANOVA (arm dominance) were used to assess interactions between sex, year in school, and sport for CKCUEST and UQYBT scores.Results:Normative values for the CKCUEST and UQYBT were established for 9 men’s and women’s college sports. No significant relationships were found between PPT scores. Men scored significantly higher than women for the CKCUEST (P = .002) and UQYBT (P = .010). Baseball players scored significantly higher than athletes from all other sports for the UQYBT (P < .001) but showed nonsignificant trends of lower scores for the CKCUEST than lower-extremity-dominant athletes such as runners (P = .063) and lacrosse players (P = .058).Conclusions:Results suggest that average CKCUEST and UQYBT scores in Division I athletes are distinct from those previously reported in recreationally active populations and that performance differences exist between sexes and sports. In addition, the CKCUEST and UQYBT appear to measure different constructs of performance and may complement each other as part of a screening battery.

scholarly journals VALIDITY OF THE MAXIMAL AEROBIC CAPACITY ESTIMATED FROM SUBMAXIMAL CYCLING EXERCISE AND FIELD PERFORMANCE TESTS IN THE ELDERLY

1992 ◽  
Vol 41 (3) ◽  
pp. 295-303 ◽  
Author(s):  
NOBUO TAKESHIMA ◽  
KIYOJI TANAKA ◽  
FUMIO KOBAYASHI ◽  
TAKEMASA WATANABE ◽  
KATSUHIRO SUMI ◽  
...  
Keyword(s):  
Aerobic Capacity ◽  
Field Performance ◽  
The Elderly ◽  
Performance Tests ◽  
Maximal Aerobic Capacity ◽  
Cycling Exercise

Shoulder Strength and Upper Body Field Performance Tests in Young Female Handball and Volleyball Athletes: Are There Differences Between Sports?

2021 ◽  
pp. 1-8
Author(s):  
Michele Forgiarini Saccol ◽  
Gisele Garcia Zanca ◽  
Rafaela Oliveira Machado ◽  
Lilian Pinto Teixeira ◽  
Rose Löbell ◽  
...  
Keyword(s):  
Upper Extremity ◽  
Effect Size ◽  
Field Performance ◽  
Young Female ◽  
Upper Body ◽  
Performance Tests ◽  
Kinetic Chain ◽  
Balance Test ◽  
Closed Kinetic Chain ◽  
Medicine Ball

Context: Volleyball and handball players have usually been studied collectively as “overhead athletes,” since throwing present similarities in the proximal to distal movement sequencing and upper limb joints ranges of motion. However, each sport presents specificities in the objectives when accelerating the ball and a variety of possible throwing techniques. Therefore, it is expected there may be differences in the shoulder and upper body physical performance between sports. Objective: The aim of this study was to determine if there are differences in shoulder muscle strength and upper body field performance tests between volleyball and handball athletes. Design: Cross-sectional. Methods: Ninety-nine volleyball and handball female athletes aged between 13 and 20 years were evaluated for isometric shoulder abductor and rotator strength (handheld dynamometer) and upper body field performance tests: Y Balance Test—Upper Quarter, modified Closed Kinetic Chain Upper-Extremity Stability Test, and unilateral and bilateral Seated Medicine Ball Throw. Results: Handball athletes presented greater shoulder internal rotation strength (between-group difference: 2.84; effect size 0.70), higher medial (between-group difference: 9.54; effect size 0.90), superolateral (between-group differences: 8.9; effect size 0.68), and composite scores (between-group difference 5.7; effect size 0.75) of the Y Balance Test—Upper Quarter and higher unilateral (between-group difference: 41.92; effect size 0.91) and bilateral (between-group difference: 46.11; effect size 0.83) Seated Medicine Ball Throw performance. Groups were not different for Closed Kinetic Chain Upper-Extremity Stability Test, external rotation, and abduction isometric strength. Conclusion: Our findings suggest that young female handball athletes present greater internal rotator strength and better performance in Y Balance Test—Upper Quarter and Seated Medicine Ball Throw compared to volleyball players. These differences may be related to the different demands required in the throwing movements performed in each sport and should be considered when assessing these populations.

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