scholarly journals Validity and reliability of accelerometers for examining vertical jump performance

2010 ◽  
Author(s):  
Ryan M. Ruben
Keyword(s):  
Vertical Jump ◽  
Validity And Reliability ◽  
Jump Performance

Strength training in professional soccer: effects on short-sprint and jump performance

2021 ◽  
Author(s):  
Javier Nuñez ◽  
Luis Suarez-Arrones ◽  
Moisés de Hoyo ◽  
Irineu Loturco
Keyword(s):  
Strength Training ◽  
Meta Analysis ◽  
Vertical Jump ◽  
Soccer Players ◽  
Validity And Reliability ◽  
Jump Performance ◽  
Training Strategy ◽  
Performance Improvements ◽  
Professional Soccer ◽  
Training Schemes

Several studies have confirmed the efficacy of strength training to maximize soccer player performance during competition. The aim of this meta-analysis was to determine the effects of different strength training protocols on short-sprint and vertical jump performance of professional soccer players from the first division of their countries. The following inclusion criteria were employed for the analysis: (a) randomized studies; (b) high validity and reliability instruments; (c) studies published in a high-quality peer-reviewed journal; (d) studies involving professional soccer players from the first division; (e) studies with descriptions of strength training programs; and (f) studies where countermovement jump and 10-m sprint time were measured pre and post training. Overall, the different strength-oriented training schemes produced similar performance improvements, which seem not to depend on the training strategy. Strength training appears to have a lower effect when applied during in-season than when applied in pre-season periods in first division soccer players. In this meta-analysis it is not possible to confirm that strength training in isolation is capable of improving the short-sprint and jump performance of elite soccer players. The congested fixture schedule and, thus, the limited time to perform complementary (non-specific) training sessions, may contribute to these reduced effects.

scholarly journals Assessing the Validity of the MyJump2 App for Measuring Different Jumps in Professional Cerebral Palsy Football Players: An Experimental Study (Preprint)

2018 ◽  
Author(s):  
Victor Coswig ◽  
Anselmo De Athayde Costa E Silva ◽  
Matheus Barbalho ◽  
Fernando Rosch De Faria ◽  
Claudio D Nogueira ◽  
...  
Keyword(s):  
Cerebral Palsy ◽  
Injury Risk ◽  
Mobile Apps ◽  
Vertical Jump ◽  
Field Evaluation ◽  
Flight Time ◽  
Jump Height ◽  
Validity And Reliability ◽  
Jump Performance ◽  
P 16

BACKGROUND Vertical jumps can be used to assess neuromuscular status in sports performance. This is particularly important in Cerebral Palsy Football (CP Football) because players are exposed to high injury risk, but it may be complicated because the gold standard for assessing jump performance is scarce in field evaluation. Thus, field techniques, such as mobile apps, have been proposed as an alternative method for solving this problem. OBJECTIVE This study aims to evaluate the reliability of the measures of the MyJump2 app to assess vertical jump performance in professional CP Football. METHODS We assessed 40 male CP Football athletes (age 28.1 [SD 1.4] years, weight 72.5 [SD 6.2] kg, and height 176 [SD 4.2] cm) through the countermovement jump (CMJ) and squat jump (SJ) using a contact mat. At the same time, we assessed the athletes using the MyJump2 app. RESULTS There were no significant differences between the instruments in SJ height (P=.12) and flight time (P=.15). Additionally, there were no significant differences between the instruments for CMJ in jump height (P=.16) and flight time (P=.13). In addition, it was observed that there were significant and strong intraclass correlations in all SJ variables varying from 0.86 to 0.89 (both P<.001), which was classified as “almost perfect.” Similar results were observed in all variables from the CMJ, varying from 0.92 to 0.96 (both P ≤.001). CONCLUSIONS We conclude that the MyJump2 app presents high validity and reliability for measuring jump height and flight time of the SJ and CMJ in CP Football athletes.

scholarly journals The validity and reliability of an iPhone app for measuring vertical jump performance

2015 ◽  
Vol 33 (15) ◽  
pp. 1574-1579 ◽  
Author(s):  
Carlos Balsalobre-Fernández ◽  
Mark Glaister ◽  
Richard Anthony Lockey
Keyword(s):  
Vertical Jump ◽  
Validity And Reliability ◽  
Jump Performance

Acute Effects of the Power Snatch on Vertical Jump Performance

2017 ◽  
Vol 49 (5S) ◽  
pp. 127
Author(s):  
Nick Diaz ◽  
Courtney Jensen ◽  
J. Mark VanNess
Keyword(s):  
Vertical Jump ◽  
Acute Effects ◽  
Jump Performance

scholarly journals Acute effect of static and dynamic stretching on tone and elasticity of hamstring muscle and on vertical jump performance in track-and-field athletes

2014 ◽  
Vol 20 (0) ◽  
pp. 48 ◽  
Author(s):  
Teet Meerits ◽  
Sebastian Bacchieri ◽  
Mati Pääsuke ◽  
Jaan Ereline ◽  
Antonio Cicchella ◽  
...  
Keyword(s):  
Vertical Jump ◽  
Acute Effect ◽  
Track And Field ◽  
Hamstring Muscle ◽  
Jump Performance ◽  
Dynamic Stretching
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