Bilateral deficit in the countermovement jump and its associations with judo-specific performance

This study examined the acute effects of resistance training (RT) on volleyball-specific performance. Sixteen female volleyball players undertook their initial, pre-season RT bout. Countermovement jump (CMJ), delayed onset of muscle soreness (DOMS), and sport-specific performances (i.e., run-up jump, agility, and spiking speed and accuracy) were measured before, 24 (T24), and 48 (T48) hours after RT. A significant increase in DOMS was observed at T24 and T48 (~207.6% ± 119.3%; p < 0.05; ES = 1.8 (95% CI: 0.94–2.57)), whilst agility was significantly impaired at T48 (1.7% ± 2.5%; p < 0.05; ES = 0.30 (95% CI: −0.99–0.40)). However, there were no differences in CMJ (~−2.21% ± 7.6%; p > 0.05; ES = −0.11 (95% CI: −0.80–0.58)) and run-up jump (~−1.4% ± 4.7%; p > 0.05; ES = −0.07 (95% CI: −0.76–0.63)). Spiking speed was significantly reduced (−3.5% ± 4.4%; p < 0.05; ES = −0.28 (95% CI: −0.43–0.97)), although accuracy was improved (38.3% ± 81.4%: p < 0.05) at T48. Thus, the initial, preseason RT bout compromised agility and spiking speed for several days post-exercise. Conversely, spiking accuracy improved, suggesting a speed–accuracy trade-off. Nonetheless, at least a 48-h recovery may be necessary after the initial RT bout for athletes returning from the off-season or injury.

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The bilateral strength and power asymmetries in untrained boys

Open Medicine ◽

10.1515/med-2015-0034 ◽

2015 ◽

Vol 10 (1) ◽

Cited By ~ 4

Author(s):

Tomas Maly ◽

Frantisek Zahalka ◽

Lucia Mala ◽

Pavol Cech

Keyword(s):

Vertical Jump ◽

Lower Limbs ◽

Knee Extensors ◽

Isokinetic Dynamometer ◽

Countermovement Jump ◽

Isokinetic Dynamometry ◽

Squat Jump ◽

Bilateral Deficit ◽

The Difference ◽

Knee Flexors

AbstractThe aim of the study was to identify the level of isokinetic strength and power of lower limbs in 13-year- old untrained boys (n=22, height: 158.5±8.0 cm, mass: 49.1±12.6 kg), to determine bilateral deficit between the limbs in the tests and examine their mutual relationship. Maximum peak muscle torque of knee extensors (PTQ) and flexors (PTH) on dominant (DL) and non-dominant leg (NL) were measured by isokinetic dynamometer. Three types of a vertical jump: countermovement jump with (CMJFA) and without arms (CMJ) and squat jump (SJ) were performed on two force platforms. We found the significant effect (p<.01) of independent vari- ables (knee extensors, flexors, AV) and their interaction on PT. AV did not indicate any significant effect on bilat- eral ratio of knee extensors (F4,84=.74, p>.05, ηp2=0.03), however a significant effect of AV was found in knee flexors (F4,84=2.70,p<.05, ηp2=.114). The type of jump had no effect on the difference between force exerted by DL and NL (F1,21=.102, p>.05, ηp2=.01). Bilateral deficit (Q:Q, H:H) did not significantly correlate with bilateral deficit in jumps (p>.05). Despite the possibility of identifying muscle asymmetries in the sense of strength imbalances, their mutual relation- ship with results in isokinetic dynamometry and power jump tests is still unclear.

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Contract Growing for the Export-oriented Cut Flowers Industry in Turkey

HortScience ◽

10.21273/hortsci.33.3.531a ◽

1998 ◽

Vol 33 (3) ◽

pp. 531a-531 ◽

Cited By ~ 2

Author(s):

Robin G. Brumfield ◽

Burhan Ozkan ◽

Osman Karagüzel

Keyword(s):

Performance Indicators ◽

Price Setting ◽

Production Structure ◽

Cut Flower ◽

Cut Flowers ◽

Product Price ◽

Plant Materials ◽

Flower Production ◽

Specific Performance ◽

Insight Into

Thirty cut flower businesses were surveyed in 1997 to examine the production structure and main problems of export-oriented contract growing in Turkey. The survey was conducted in Antalya province, which is the center of export-oriented cut flower production in Turkey. The results of the research provided insight into how Turkish cut flower-contracted growers were managing some of the key areas of their operations. The study also provided the opportunity for growers to highlight their concerns about contract growing for export-oriented cut flower production. The survey showed that contract growers do not use specific performance indicators relevant to cut flower production. The product price received by the contract growers was determined by the export companies. These export companies receive flowers from growers mainly on consignment. After exporting the products, exporters periodically pay the grower, subtracting a commission for their services and other marketing expenses. Contract growers are essentially price takers in the transactions. The business procedure from production to price setting and marketing was not in the hands of the contract growers. Therefore, the trading risks are essentially borne by the contract growers. The main concerns raised by contract growers were the current consignment system, cost of the plant materials, and the late payment for the sold products.

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Does CEO-Specific Performance Impact Corporate Decisions? Evidence from Convertible Debt Issues

SSRN Electronic Journal ◽

10.2139/ssrn.2264907 ◽

2011 ◽

Author(s):

Chaoli Guo

Keyword(s):

Convertible Debt ◽

Performance Impact ◽

Corporate Decisions ◽

Specific Performance

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Important Legal Issues in Specific Performance Cases: A Study

SSRN Electronic Journal ◽

10.2139/ssrn.2758063 ◽

2016 ◽

Author(s):

Mukund Sarda

Keyword(s):

Legal Issues ◽

Specific Performance

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The Importance of Role-Specific Performance and Sociopolitical Factors for Chief Financial Officer Employment Outcomes

Accounting Horizons ◽

10.2308/acch-52251 ◽

2018 ◽

Vol 33 (1) ◽

pp. 61-81 ◽

Cited By ~ 2

Author(s):

Ellen Engel ◽

Feng Gao ◽

Xue Wang

Keyword(s):

Performance Measures ◽

Financial Reporting ◽

Significant Role ◽

Economic Performance ◽

Career Paths ◽

Poor Performance ◽

Regulatory Compliance ◽

Chief Financial Officer ◽

Direct Influence ◽

Specific Performance

SYNOPSIS This paper investigates the importance of role-specific performance measures and sociopolitical factors in the career paths of CFOs. We find that forced CFO turnover is associated with poor performance in functions over which they have more direct influence, including financial reporting, financing, and regulatory compliance. We also find that CFOs are less likely to be dismissed when they have greater connectedness with the CEO and have stronger influence within the firm. Interestingly, sociopolitical factors are linked with promotion outcomes, but economic performance does not appear to play a significant role. The collective evidence indicates that both economic and sociopolitical factors have an important role in influencing CFO career paths.

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Introduction to Problems of Performance

10.1093/oso/9780199731404.003.0046 ◽

2018 ◽

Author(s):

Melvin A. Eisenberg

Keyword(s):

Contract Price ◽

Contract Formation ◽

Specific Performance ◽

The Right ◽

A Performance

This chapter provides an introduction to problems of performance, which for the most part concern post-contract formation issues, such as a promisee’s rights where the promisor has rendered a performance that is imperfect but substantial. Generally speaking, problems of performance concern sanctions for breach other than damages or specific performance, such as suspension of performance or termination of the contract by the aggrieved party. These sanctions are often much more severe than damages. For example, if a promisee has the right to terminate a contract the promisor may lose the profits she would have earned if the contract had continued in force, as well as the value, or at least the contract price, of the performance she rendered before the contract was terminated.

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