scholarly journals Postactivation Performance Enhancement (PAPE) Increases Vertical Jump in Elite Female Volleyball Players

2022 ◽  
Vol 19 (1) ◽  
pp. 462
Author(s):  
Lamberto Villalon-Gasch ◽  
Alfonso Penichet-Tomas ◽  
Sergio Sebastia-Amat ◽  
Basilio Pueo ◽  
Jose M. Jimenez-Olmedo
Keyword(s):  
Effect Size ◽  
Performance Enhancement ◽  
Vertical Jump ◽  
Control Group ◽  
Large Effect Size ◽  
Jump Performance ◽  
Volleyball Players ◽  
And Control

The purpose of this study was to verify if a conditioning activity was effective to elicit postactivation performance enhancement (PAPE) and to increase the performance in vertical jump (VJ) in elite female volleyball players. Eleven national Superliga-2 volleyball players (22.6 ± 3.5 years) were randomly assigned to an experimental and control group. Countermovement jumps (CMJ) were performed on eight occasions: before (Pre-PAPE) and after activation (Post-PAPE), after the match (Pre-Match), and after each of the five-match sets (Set 1 to 5). ANOVA showed significantly increased jump performance for the experiment between baseline (Pre-PAPE) and all the following tests: +1.3 cm (Post-PAPE), +3.0 cm (Pre-Match), +4.8 cm (Set 1), +7.3 cm (Set 2), +5.1 cm (Set 3), +3.6 cm (Set 4), and +4.0 cm (Set 5), all showing medium to large effect size (0.7 < ES < 2.4). The performance of the control group did not show significant increases until Set 3 (+3.2 cm) and Set 5 (+2.9 cm), although jump heights were always lower for the control group than the experimental. The use of conditioning activity generates increased VJ performance in Post-PAPE tests and elicited larger PAPE effects that remain until the second set of a volleyball match.

scholarly journals Validasi Modul Pelatihan Pendampingan Klien pada Pekerja Sosial

2019 ◽  
Vol 3 (2) ◽  
pp. 66
Author(s):  
Yova Tri Yolanda ◽  
Muhana Sofiati Utami
Keyword(s):  
Social Worker ◽  
Effect Size ◽  
Test Sample ◽  
Control Group ◽  
Control Groups ◽  
Large Effect Size ◽  
Control Group Design ◽  
Sample Data ◽  
Post Test ◽  
And Control

Purpose of this research is to validated the module Client Facilitating Training to increase social worker knowledge about stress  and skill for facilitating client. Training included psychoeducation about stress and management stress, basic of client facilitating method and communication skill in facilitating process. Subjects of this research are 12 social worker and divided to experiment and control group. This research using quasi experiment with non control group design with pretest and post test sample. Data collected by management stres questionnaire, facilitating scale and field data collected by observer and supervisor. Results indicated that there is a significant differences between experiment and control groups in stress and management stress (Z=-3,017; p<0,05) with large effect size of 0,87 and Facilitatting skill (Z= -1,354; p<0,05) with large effect size of 0,84. Client Facilitating Training is valid to improve social worker knowledge stress  and management stress  and facilitating skill.

Using an overhead target increases volleyball-specific vertical jump performance

2021 ◽  
pp. 175433712110396
Author(s):  
Mehmet Yildiz ◽  
Zeki Akyildiz ◽  
Filipe Manuel Clemente ◽  
Deniz Yildiz
Keyword(s):  
Training Program ◽  
Repeated Measures ◽  
Vertical Jump ◽  
Control Group ◽  
Jump Height ◽  
Long Term Effects ◽  
Jump Performance ◽  
Volleyball Players ◽  
Vertical Jumps ◽  
Regular Training

In volleyball, spikes, and block jumps are among the most important movements when earning points and impacting performance. Many studies have found a greater jump height after acutely augmented feedback and extrinsic focus of attention on vertical jump height. However, there are limited studies on the long-term effects of using an overhead target on volleyball-specific vertical jumps (block and spike jumps). Therefore, the aim of the current study was to investigate the effects of using an overhead target on the vertical jump heights of volleyball players. Twenty-five professional male volleyball players (age: 24.44 ± 3.78 years; height: 1.82 ± 8.79 cm; body mass: 80.96 ± 9.37 kg) were randomly assigned either to the experimental group with an overhead target (OHT) ( n = 9), group without an overhead target (WOHT) ( n = 10), or the control group ( n = 8). The OHT group performed vertical jumps with an overhead target before their regular training program, while the WOHT group completed vertical jumps without an overhead target before their regular training program. Meanwhile, the control group performed only their regular training program, which was a 5 week (3 days per week) program. All participants’ spike jump (SPJ) and block jump (BJ) results were assessed before and after the intervention. A repeated-measures analysis of variance (3 × 2) did not reveal any significant between-group interactions for SPJ and BJ ( F = 7.32, p < 0.11 and F = 1.59, p < 0.22 respectively), but significant results were found for the time effect ( F = 96.33, p < 0.01 and F = 132.25, p < 0.01 respectively) and group × time interaction ( F = 42.59, p < 0.01 and F = 61.52, p < 0.01, respectively). While the pre- and post-tests for BJ and SPJ values did not change in the control group ( p > 0.05), both of these values increased in the OHT group (60.00 ± 5.95–67.44 ± 5.98 cm, p < 0.01 for d = 1.24 and 49.00 ± 6.74–56.22 ± 5.29 cm p < 0.01 for d = 1.19, respectively) and WOHT group (57.50 ± 4.86–60.50 ± 4.99 cm, p < 0.01 for d = 0.60 and 47.75 ± 4.65–50.25 ± 3.69 cm, p < 0.01 for d = 0.59). It has been suggested that trainers and professionals can use an overhead target to increase the BJ and SPJ heights of professional volleyball players.

scholarly journals The Individual and Combined Effects of PNF Stretching and Plyometric Training on Muscular Power and Flexibility for Volleyball Players

2021 ◽  
Vol 9 (36) ◽  
pp. 73-82
Author(s):  
Amr H. Tammam ◽  
Enas M. Hashem
Keyword(s):  
Vertical Jump ◽  
Control Group ◽  
Combined Effects ◽  
Muscular Power ◽  
Plyometric Training ◽  
Post Evaluation ◽  
Proprioceptive Neuromuscular Facilitation ◽  
Volleyball Players ◽  
The Individual ◽  
And Control

The knowledge gained through this study could help to make plyometric training more effective when Proprioceptive Neuromuscular Facilitation (PNF) stretching added to the workouts without having to isolate strength and flexibility on separate sessions. The aim of this study was to compare the individual and combined effects of 6-week of PNF stretching and plyometric training (PLYOT) in muscular power and flexibility for young volleyball players Thirty-seven male young volleyball players participated in the current study. They were distributed into four groups; PNF (n = 10), PLYOT (n = 10), Combining PNF and PLYOT (COMB) (n = 10), and control group without PNF and PLYOT (CON) (n = 7), they were tested before (PRE) and after (POST) 6-week training for muscular power [i.e. vertical jump (VJ), seated medicine ball throw (SMTH), and rotational power ball throw (RPTH)] and flexibility [i.e. sit& reach test (SRT), shoulder& wrist flexibility test (SWFT), and trunk rotation test (TRT)]. The results have shown significant effects of the time for all study variables (p ≤ 0.05) of all groups except CON group had no significant effects (p ˃ 0.05). There were statistically significant differences favor COMB group (p ≤ 0.05) at the POST evaluation in muscular power variables in comparison with the PNF and PLYOT groups, while no statistically significant differences (p ˃ 0.05) were found between PNF, PLYOT, and COMB in all flexibility variables. In conclusion the combined effect of PNF and PLYOT has surpassed the individual effect of them on muscular power but not on flexibility variables.

scholarly journals Effect of 6-Month Fascia-Oriented Training on Jump Performance in Elite Female Volleyball Players

2017 ◽  
Vol 11 (2) ◽  
pp. 47-54
Author(s):  
Renáta Vychodilová ◽  
Martin Zvonař ◽  
Martin Sebera
Keyword(s):  
Scientific Evidence ◽  
Vertical Jump ◽  
Training Programme ◽  
Control Group ◽  
Performance Potential ◽  
Jump Performance ◽  
Volleyball Players ◽  
Before And After ◽  
Medium Level ◽  
The Difference

Fascia-oriented training is supposed to enhance physical performance potential. Specifically, the employment of the catapult mechanism, the refinement of the elastic energy storage, remodelling, rehydration and release in fascia tissue are supposed to enable faster and more powerful jump performance. The authors of the present study reviewed that little applied research has been conducted to bring scientific evidence verifying these findings in sports practice. The study was conducted to assess the effect of a 6-month, fascia-oriented training programme, designed in accordance with the principles of the fascia-oriented exercise, on the height of vertical countermovement jump (CMJ) performance in well-trained volleyball players. Sixteen female players (age 17.31 ± 0.98; height 173 ± 5.26; weight 65.25 ± 6.75) competing in the national league were randomly assigned for the training (TG) and control group (CG). TG performed a supervised 25-minute fascia-oriented training twice a week for six months. Measurements were conducted before and after the training intervention; the subjects performed 3 trials of CMJ. The study hypothesized that after the application, the height of CMJ would increase more in TG than in CG. The results show that the height of CMJ in TG increased comparing to CMJ height in CG, though the difference is not statistically significant. The results of the effect size manifest the increase of medium level, by 2.2cm in TG. Thus we conclude that the results of the study indicate that the application of the 6-month, fascia-oriented training aimed to develop the vertical jump performance potential in elite volleyball players is not statistically significantly beneficial.

scholarly journals Unilateral and Bilateral Post-Activation Performance Enhancement on Jump Performance and Agility

2021 ◽  
Vol 18 (19) ◽  
pp. 10154
Author(s):  
Alejandro Escobar Hincapié ◽  
Carlos Alberto Agudelo Velásquez ◽  
Mariluz Ortiz Uribe ◽  
Camilo Andrés García Torres ◽  
Andrés Rojas Jaramillo
Keyword(s):  
Effect Size ◽  
Performance Enhancement ◽  
Vertical Jump ◽  
Effect Sizes ◽  
Training Experience ◽  
Jump Performance ◽  
Warm Up ◽  
Vertical Jumping ◽  
Different Types ◽  
Before And After

This study aimed to compare the effects of the post-activation performance enhancement (PAPE) of two different types of warm-ups, unilateral and bilateral, on the performance in vertical jumping and agility of healthy subjects with strength training experience. In the study, 17 subjects (12 men and 5 women) performed two different PAPE protocols: unilateral squat (UT) and bilateral squat (BT). The height of the subjects’ countermovement jump (CMJ) and the subjects’ time to perform the T-agility test (TAT) were measured before and after executing the PAPE warm-up. The squats were performed at a velocity of 0.59 m·s−1 with three sets of three repetitions, with a 3-min rest between sets and a 5-min rest after both uni-and bilateral PAPE warm-ups before taking the tests again. For statistical analysis, we applied ANOVA and calculated the effect size. The results showed that the PAPE for each case decreased the CMJ height but generated significant improvements in the total time taken for the T-agility test (p < 0.01); however, in both cases, the effect sizes were trivial. In conclusion, it is possible to observe that the PAPE, performed both unilaterally and bilaterally, negatively affects the performance in the vertical jump, showing moderate effect sizes. However, both PAPE protocols show performance benefits in agility tests, with a large effect size for the unilateral protocol and moderate for the bilateral protocol.

scholarly journals Further improvement of vertical jumping performance of volleyball players through targeted plyometric training

2019 ◽  
Vol 16 (4) ◽  
pp. 951-958
Author(s):  
Mehmet Yıldız ◽  
Oğuzhan Engin
Keyword(s):  
Repeated Measures ◽  
Vertical Jump ◽  
English Summary ◽  
Control Group ◽  
Plyometric Training ◽  
Jump Performance ◽  
Repeated Measures Analysis ◽  
Vertical Jumping ◽  
Volleyball Players ◽  
Post Test

Background and Aim: The purpose of this study was to investigate the effect of jumping exercises with an overhead target on vertical jump performance of volleyball players. Method: Eighteen male volleyball players (age 21.3 ± 1.8 years, height 183.8 ± 10.0 cm, weight 78.44 ± 12.0 kg) participated in the study. The participants were divided into two groups randomly. Before the study, as a pre-test, jumping heights of all participants were measured by the Sargent method. Then, three days a week, for a total of four weeks, the control group performed 10 vertical jump exercises without targeting, while the study group performed 10 jumps with 10% more of the pretest result after the standard volleyball training. The target of a participant who reached the target three times in one session was increased by 10%. As a final test, maximal jump heights of both groups were measured again with the Sargent method. A 2X2 repeated measures analysis of variance was used to determine vertical jump height changes according to pre-test and post-test measurements of the groups.  Results: During the study, the maximal jump values ​​of the volleyball players were found to increase by 13% (55,66 ± 6,7 cm) compared to the control group (50,56 ± 7,70 cm). Conclusion: In branches such as volleyball, where jump performance is the most important determinant of success, it is suggested that exercises should be performed through an overhead target to improve vertical jump performance. ​Extended English summary is in the end of Full Text PDF (TURKISH) file.   Özet Giriş ve Amaç: Bu çalışmanın amacı baş üstü hedef göstererek yapılan dikey sıçrama egzersizlerinin voleybol oyuncularının dikey sıçrama performansına olan etkisini araştırmaktır. Yöntem: Çalışmaya on sekiz erkek voleybol (yaş: 21,3±1,8 yıl, boy: 183,8±10,0 cm, vücut ağırlığı: 78,44±12,0 kg) oyuncusu katılmıştır. Katılımcılar rastgele yöntemle iki guruba ayrılmıştır. Çalışma öncesi tüm katılımcıların ön test olarak Sargent yöntemiyle sıçrama yükseklikleri ölçülmüştür. Daha sonra haftada üç gün, toplam dört hafta boyunca standart antrenman sonrası kontrol grubu hedef gösterilmeden 10 dikey sıçrama egzersizi yaparken, çalışma grubu ön test sonucunun %10 fazlası hedef gösterilerek 10 sıçrama çalışması yapmışlardır. Gösterilen hedefe bir çalışmada 3 defa ulaşan bir katılımcının hedefi %10 arttırılmıştır. Son test olarak her iki grubunda Sargent yöntemiyle maksimal sıçrama yükseklikleri tekrar ölçülmüştür. Grupların ön test ve son test ölçümlerine göre dikey sıçrama yükseklik değişimlerinin belirlenmesi için 2X2 tekrarlı ölçümler varyans analizi uygulanmıştır. Bulgular: Çalışma sırasında hedef göstererek (55,66±6,7 cm) yapılan egzersizlerin kontrol grubuna oranla (50,56±7,70 cm) voleybolcularda maksimal sıçrama değerlerinin daha fazla arttığı (%13) tespit edilmiştir. Tartışma-Sonuç: Voleybol gibi dikey sıçrama performansının başarının en önemli belirleyicisi olduğu branşlarda sıçrama performansının geliştirilmesi için baş üstü hedef gösterilerek yapılacak egzersizler önerilmektedir.

The effect of midodrine on lactate clearance in patients with septic shock: a pilot study

2021 ◽  
Author(s):  
Effat Davoudi-Monfared ◽  
Mostafa Mohammadi ◽  
Meysam Khoshavi ◽  
Hossein Khalili
Keyword(s):  
Septic Shock ◽  
Pilot Study ◽  
Effect Size ◽  
Critically Ill Patients ◽  
Lactate Clearance ◽  
Control Group ◽  
Large Effect Size ◽  
Group 13 ◽  
Registration Number ◽  
To Receive

Background: The effect of midodrine on lactate clearance has not been assessed in critically ill patients yet. Objective: The goal of this study was to assess the effect of adjunctive midodrine therapy on lactate clearance in patients with septic shock. Materials & methods: Patients with septic shock were assigned to receive either adjunctive midodrine 10 mg three-times a day for 5 days (midodrine group = 15 patients) or not (control group = 13 patients). Results: The lactate clearance was significantly faster in the midodrine group than the control group (p = 0.049) with a large effect size ([Formula: see text] = 0.141). Conclusion: When midodrine was added to intravenous vasopressors, it significantly accelerated lactate clearance in patients with septic shock. Trial registration number: IRCT20100228003449N25 (Clinicaltrials.gov).

scholarly journals PENGARUH MODEL PEMBELAJARAN KOOPERATIF TIPE STAD TERHADAP DAYA INGAT DAN HASIL BELAJAR SISWA PADA MATERI HIDROLISIS GARAM KELAS XI IPA SMA KEMALA BHAYANGKARI 1 SUNGAI RAYA

2017 ◽  
Vol 5 (1) ◽  
Author(s):  
Sahara Sahara ◽  
Dedeh Kurniasih ◽  
Rizmahardian Azhari Kurniawan
Keyword(s):  
Statistical Analysis ◽  
Data Collection ◽  
Cooperative Learning ◽  
Learning Outcomes ◽  
Effect Size ◽  
Teaching Method ◽  
Control Group ◽  
Learning Method ◽  
Control Group Design ◽  
And Control

ABSTRACT The process of learning chemistry which only focused on teacher as informant caused the students’ memory lower. This could make the students’ learning outcomes lower, thus, it was needed STAD type of Cooperative Learning Method which had the process of interaction between student and teacher, and could help the students comprehend the material. Therefore, it was necessary to make a research which had the purpose to know the difference between students’ learning outcomes and memory which used STAD type ofCooperative Learning Method and lectures teaching method as well as how large the effect of STAD type of Cooperative Learning Method on salt hydrolysis material was. This research was Quasi Experimental Nonequivalent Control Group Design. The sample of the research was choosen by using saturated sampling which XI IPA 1 as experimental class and XI IPA 2 as control class. The techniques of data collection used measurement technique, observation, and interview while the tools of data collection used tests such as essayquestion, observation sheet, and interview guide. The statistical analysis of posttest result using U-man whitney test obtained significant value 0.000. This value was smaller than α (0.005) which meant that there was difference in learning outcome between experimental and control class. The statistical analysis result of U-man whitney delayed test obtained significant value 0.006, this value was smaller than α (0.005) which meant that there was difference between students’ memory in experimental and control class. The calculation of effect size showed value 1.64 with high criteria which gave high effect on students’ learning outcomes which was 44.95%, while the calculation of students’ memory effect size showed value 0.69 with moderate criteria which gave effect on students’ memory which was 26,42%. Keywords : Memory, Learning Outcomes, Salt Hydrolysis, STAD type of Cooperative Learning Method

scholarly journals Enhancement of Countermovement Jump Performance Using a Heavy Load with Velocity-Loss Repetition Control in Female Volleyball Players

2021 ◽  
Vol 18 (21) ◽  
pp. 11530
Author(s):  
Michal Krzysztofik ◽  
Rafal Kalinowski ◽  
Robert Trybulski ◽  
Aleksandra Filip-Stachnik ◽  
Petr Stastny
Keyword(s):  
Body Mass ◽  
Repeated Measures ◽  
Performance Enhancement ◽  
Countermovement Jump ◽  
Mean Power ◽  
Mean Velocity ◽  
Heavy Load ◽  
Jump Performance ◽  
Volleyball Players ◽  
Post Hoc

Although velocity control in resistance training is widely studied, its utilization in eliciting post-activation performance enhancement (PAPE) responses receives little attention. Therefore, this study aimed to evaluate the effectiveness of heavy-loaded barbell squats (BS) with velocity loss control conditioning activity (CA) on PAPE in subsequent countermovement jump (CMJ) performance. Sixteen resistance-trained female volleyball players participated in this study (age: 24 ± 5 yrs.; body mass: 63.5 ± 5.2 kg; height: 170 ± 6 cm; relative BS one-repetition maximum (1RM): 1.45 ± 0.19 kg/body mass). Each participant performed two different conditions: a set of the BS at 80% 1 RM with repetitions performed until a mean velocity loss of 10% as the CA or a control condition without CA (CNTRL). To assess changes in jump height (JH) and relative mean power output (MP), the CMJ was performed 5 min before and throughout the 10 min after the CA. The two-way analysis of variance with repeated measures showed a significant main effect of condition (p = 0.008; η2 = 0.387) and time (p < 0.0001; η2 = 0.257) for JH. The post hoc test showed a significant decrease in the 10th min in comparison to the value from baseline (p < 0.006) for the CNTRL condition. For the MP, a significant interaction (p = 0.045; η2 = 0.138) was found. The post hoc test showed a significant decrease in the 10th min in comparison to the values from baseline (p < 0.006) for the CNTRL condition. No significant differences were found between all of the time points and the baseline value for the CA condition. The CA used in the current study fails to enhance subsequent countermovement jump performance in female volleyball players. However, the individual analysis showed that 9 out of the 16 participants (56%) responded positively to the applied CA, suggesting that the PAPE effect may be individually dependent and should be carefully verified before implementation in a training program.

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