scholarly journals Acute Effects of Static and Dynamic Stretching on Jump Performance of Volleyball Players

2021 ◽  
Vol 4 (3) ◽  
Author(s):  
Yasemin Arı ◽  
◽  
Ozan Sever ◽  
Aslıhan Arslangörür ◽  
Asım Tunçel ◽  
...  
Keyword(s):  
Rank Test ◽  
Control Group ◽  
Static Stretching ◽  
Acute Effects ◽  
Jump Performance ◽  
Dynamic Stretching ◽  
Friedman Analysis ◽  
Significant Difference ◽  
Volleyball Players ◽  
Group Control Group

The aim of this study is to examine the acute effects of different stretching methods on jump performance of volleyball players. 11 female volleyball players (age: 24.36 ± 5.10 years; height: 177.81 ± 7.30 cm; weight: 68.17 ± 11.69 kg; body mass index (BMI): 21.46 ± 2.56 kg.m-2; sports age: 12.72 ± 5.31 years) have participated voluntarily in this study. The players have applied three different stretching protocols such as control (no stretching), static and dynamic stretching on non-consecutive days. The protocols have included 5 minutes general warm-up, 1 minute rest, 30-second stretch program for each muscle group (control group not included), 1 minute rest and countermovement jump (CMJ), squat jump (SJ) and standing long jump (SLJ) tests. Friedman analysis has been used for data analysis. Wilcoxon Signed Rank Test has been implemented in order to determine the difference among groups. At the end of the study, a significant difference has been found between control and dynamic stretching groups with regard to static stretching groups in view of CMJ and SJ performance findings (p <0.05). It has been found that there is a statistically significant difference in the test averages of dynamic stretching group compared to static stretching group in view of SLJ performance findings (p <0.05). This study shows that static stretching practices reduce the jumping performance of the players. As a result, it can be suggested that trainers should use dynamic stretching methods before the trainings on jumping properties containing explosive movements.

scholarly journals Acute Effects of Static and Dynamic Stretching on Jump Performance of Volleyball Players

2021 ◽  
Author(s):  
Yasemin Arı ◽  
Asım Tunçel ◽  
Ozan Sever ◽  
Aslıhan Arslangörür
Keyword(s):  
Rank Test ◽  
Control Group ◽  
Static Stretching ◽  
Acute Effects ◽  
Jump Performance ◽  
Dynamic Stretching ◽  
Friedman Analysis ◽  
Significant Difference ◽  
Volleyball Players ◽  
Group Control Group

The aim of this study is to examine the acute effects of different stretching methods on jump performance of volleyball players. 11 female volleyball players (age: 24.36 ± 5.10 years; height: 177.81 ± 7.30 cm; weight: 68.17 ± 11.69 kg; body mass index (BMI): 21.46 ± 2.56 kg.m-2; sports age: 12.72 ± 5.31 years) have participated voluntarily in this study. The players have applied three different stretching protocols such as control (no stretching), static and dynamic stretching on non-consecutive days. The protocols have included 5 minutes general warm-up, 1 minute rest, 30-second stretch program for each muscle group (control group not included), 1 minute rest and countermovement jump (CMJ), squat jump (SJ) and standing long jump (SLJ) tests. Friedman analysis has been used for data analysis. Wilcoxon Signed Rank Test has been implemented in order to determine the difference among groups. At the end of the study, a significant difference has been found between control and dynamic stretching groups with regard to static stretching groups in view of CMJ and SJ performance findings (p &lt;0.05). It has been found that there is a statistically significant difference in the test averages of dynamic stretching group compared to static stretching group in view of SLJ performance findings (p &lt;0.05). This study shows that static stretching practices reduce the jumping performance of the players. As a result, it can be suggested that trainers should use dynamic stretching methods before the trainings on jumping properties containing explosive movements.

scholarly journals Acute effects of isoinertial resistance application on sprint, vertical and horizontal jump performance

2019 ◽  
Vol 23 (2) ◽  
pp. 76-82 ◽  
Author(s):  
M. Kale ◽  
A. Özmusul ◽  
E. Heper
Keyword(s):  
Stride Length ◽  
Control Group ◽  
Vertical Force ◽  
Acute Effects ◽  
Countermovement Jump ◽  
Significant Group ◽  
Jump Performance ◽  
Significant Difference ◽  
Post Test ◽  
Experimental Group

Purpose: The purpose of this study was to investigate of the acute effects of isoinertial resistance application on sprint, vertical and horizontal jump performance. Material: Volunteered 32 male students were divided into randomized experimental group and control group. Before and after 4-repetition maximal back squat with (for experimental group) or without isoinertial resistance application (for control group), 30 m sprint, vertical squat and countermovement jump tests with both legs, dominant leg, and non-dominant leg, standing broad jump and standing broad countermovement jump tests with both legs were assessed. Wilcoxon t test for pre- and post-test differences within the group, and Mann Whitney U test for pre- and post-test differences between the groups were used. Results: There were no significant differences within the group and between the groups for 30m both legs sprint parameters except pre-test mean stride length between the groups (Z=-2.27; p<0.02). Control group had a significant difference between pre- and post-test dominant leg vertical force (Z=-2.07; p<0.05). There were significant group differences in pre-test non-dominant leg countermovement jump (Z=-2.13; p<0.05), pre- and post-test non-dominant leg stride length (Z=-1.99 and Z=-2.28; p˂0.05, respectively). Conclusions: As a result of the effect of acute isoinertial resistance application to stride length especially to non-dominant stride length it is concluded that long-term isoinertial resistance training can support sprint performance with tolerating stride length imbalance between dominant leg and non-dominant leg.

Does soft tissue mobilization assist static stretching to improve hamstring flexibility? A randomized controlled trial

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Shibili Nuhmani
Keyword(s):  
Soft Tissue ◽  
Controlled Trial ◽  
Knee Extension ◽  
Repeated Measure ◽  
Control Group ◽  
Static Stretching ◽  
Significant Difference ◽  
Hamstring Flexibility ◽  
Soft Tissue Mobilization ◽  
Experimental Group

AbstractObjectivesObjective of the study is to investigate whether Soft tissue mobilization (STM) can assist with static stretching to improve hamstring flexibly.MethodsThe design of the study was repeated measure design. The study was conducted at the physical therapy laboratory of Jamia Hamdard University, New Delhi. Participants included 78 healthy males with hamstring tightness, randomly assigned to either the control group (static stretching) or the experimental group (STM and static stretching). The experimental group received five sets of four different STM techniques, followed by two sets of 30-s static stretches 3 days per week over the course of 12 weeks. The control group received 5 min of sham ultrasound with an inactive probe prior to static stretching. Active knee extension test (AKE) was the outcome measure.ResultsBoth groups showed significant improvement in AKE compared with the baseline measurements. With ingroup analysis showed a significant difference in AKE across all measured time periods (weeks 4, 8, and 12) with pre-test in both groups (p<0.05). No significant difference in AKE improvement was found between groups (p>0.05).ConclusionThe results of this study show that STM prior to static stretching does not significantly improve hamstring flexibility among healthy individuals. Although this study cannot be generalized, the results may be useful for evidence-based practice in the management of hamstring tightness.

scholarly journals Effect of Application Time of Two Different Disinfectants on the Surface Roughness of an Elastomeric Impression Material

2020 ◽  
Author(s):  
Tahir Karaman ◽  
Faruk Oztekin ◽  
Samet Tekin
Keyword(s):  
Surface Roughness ◽  
Sodium Hypochlorite ◽  
Quaternary Ammonium ◽  
Rank Test ◽  
Control Group ◽  
P Value ◽  
Sodium Hypochlorite Solution ◽  
Application Time ◽  
Impression Material ◽  
Significant Difference

Introduction: Pathogens, such as cytomegalovirus, hepatitis B virus, hepatitis C virus, herpes simplex virus types 1 and 2, and human immunodeficiency virus are transmitted, threatening the health of dental laboratory workers, especially as a result of saliva and blood contact of patients. To prevent cross-infection, impression materials should be disinfected at the end of the impression process in the mouth. Aim: To study the effect of application time of sodium hypochlorite and quaternary ammonium-based disinfectant solution on the surface roughness of an elastomeric impression material. Materials and Methods: In this in-vitro study done during March 2020, 10 disc-shaped samples were used in each group, with a total of 110 samples obtained from a light body elastomeric impression material with dimensions of 15×3 mm. The samples were kept in a sodium hypochlorite solution (Wizard; Rehber Kimya, Istanbul, Turkey) at concentrations of 1% and 5% for 1, 5, 10, and 30 minutes and in a quaternary ammonium-based disinfectant (Zeta 7 Solution, Zhermack SpA, Italy) for 10 and 30 minutes. Surface roughness measurements were taken with a profilometer device. The data obtained were statistically analysed by Kolmogorov-Smirnov test and Wilcoxon signed rank test for dependent/paired groups for the continuous data. The significance level was set to α=0.05. Results: A statistically significant difference was found between the control group and the 1% sodium hypochlorite (30 min p-value 0.037), and 5% sodium hypochlorite (30 min p-value 0.017). The statistical evaluation of the surface roughness of the samples with different concentrations of sodium hypochlorite and the same times was done and found statistically significant at 30 mins, p-value 0.021. Conclusion: The prolonged application of the sodium hypochlorite disinfectant at 1% and 5% concentrations caused a significant increase in the light body elastomeric impression material’s surface roughness

scholarly journals The Acute Effects of Dynamic and Static Stretching on Tennis Serve Targeting Performance

2019 ◽  
Vol 7 (4) ◽  
pp. 123
Author(s):  
Bulent Turna ◽  
Asuman Sahan ◽  
Bahar Yilmaz
Keyword(s):  
Wilcoxon Test ◽  
Static Stretching ◽  
Acute Effects ◽  
Warm Up ◽  
Dynamic Stretching ◽  
Paired Samples ◽  
Tennis Serve ◽  
Playing Time ◽  
Homogeneous Data ◽  
Stretching Exercises

The study investigates the acute effects of dynamic and static stretching on the tennis serve targeting performance of amateur tennis players. Twenty male athletes who were between the ages of 16-24 years and played tennis for at least 1 year (21.40±2.16 years, 181±0.06 cm, 71.85±7.42 kg, tennis playing time 1.55±0.88 years) voluntarily participated in the study.Prior to the pre-tests and after applying the traditional warm-up protocol, serve targeting test (STT) was applied to all participants. In the post-tests, STT was used after applying three different warm-up methods on three different days (48-hour rest interval). The warm-up stages included No Treatment (NT) (jogging, rally), Static Stretching (SS) and Dynamic Stretching (DS).In the statistical analysis, the homogeneity of the data was investigated using the Shapiro Wilk test. The Wilcoxon test was used to compare the pre-test and post-test results of the non-homogeneous data; Friedman test was used to compare the three different stretching methods with each other; in the paired comparisons of the groups, the paired samples t-test was used for the homogenous data and Wilcoxon test was used for the non-homogeneous data. In conclusion, stretching exercises before serving increased the serve targeting performance and the increase in the dynamic stretching exercises was higher than that in static stretching exercises.

scholarly journals The Effect of Psychodrama on Subjective Well-Being and Trait Anxiety

2020 ◽  
Vol 6 (2) ◽  
pp. 269
Author(s):  
AliAyşe Nur Katmer ◽  
Ramazan Demir ◽  
Ali Çekiç ◽  
Zeynep Hamamcı
Keyword(s):  
Trait Anxiety ◽  
Well Being ◽  
Rank Test ◽  
Control Group ◽  
Subjective Well Being ◽  
Control Groups ◽  
Significant Difference ◽  
Post Test ◽  
And Control ◽  
Experimental Group

This study investigates the effects of psychodrama on adults’ anxiety and subjective well-being levels. A pre/post-test experimental pattern is used with experimental and control groups. The study sample consists of 24 non-thesis master’s program students at Gaziantep University, Human Psychology, and Communication. The State-Trait Anxiety Inventory (STAI) and the Subjective Well-Being Scale were applied as a pre-test to the experimental and control groups. The psychodrama group practice was performed with the experimental group once a week for eleven weeks, 90 minutes per session, while the control group did not receive any practice. After the application, the post-test was administered to both groups. The data were analyzed with SPSS 23 statistical program. The Mann-Whitney U test was used to evaluate the difference between the experimental and control group, and the Wilcoxon Signed Rank Test was applied for the changes within the experimental group. The findings indicate that the individuals’ anxiety level in the experimental group significantly decreased compared to the control group. There was no significant difference between subjective well-being in the experimental and control group for pre-test and post-test applications.

scholarly journals Serum Hepcidin Level as a Marker of Iron Status in Children with Cystic Fibrosis

2018 ◽  
Vol 2018 ◽  
pp. 1-8
Author(s):  
Monika Kałużna-Czyż ◽  
Urszula Grzybowska-Chlebowczyk ◽  
Halina Woś ◽  
Sabina Więcek
Keyword(s):  
Cystic Fibrosis ◽  
Iron Status ◽  
Full Blood Count ◽  
Control Group ◽  
Hepcidin Level ◽  
Significant Difference ◽  
Serum Hepcidin ◽  
Liver Markers ◽  
Group Control Group ◽  
Active Inflammation

Introduction. Iron deficiency is common in patients with cystic fibrosis. Conventional iron status markers are often abnormal in patients with CF, reflecting inflammation and/or infection, rather than actual iron stores. The aim was to evaluate serum hepcidin levels against selected iron status markers, assuming that hepcidin may be a more sensitive indicator of iron management in patients with active inflammation, such as those with CF. Material and Methods. 46 children with cystic fibrosis and 31 healthy controls were enrolled. Hepcidin concentration was evaluated, along with the following other blood assays: full blood count, Fe, ferritin, transferrin, TIBC, liver markers, and CRP. Results. Higher ferritin and CRP levels as well as lower TIBC levels significantly predicted hepcidin levels in the study group, control group, and the entire sample. There was no significant difference in hepcidin levels between the patients and controls. Children with exacerbations had significantly higher hepcidin levels than those with stable disease. These findings support the serum hepcidin level as useful in assessing iron status in children with cystic fibrosis. It may also be useful in early detection and monitoring of treatment of exacerbations.

Static and Dynamic Acute Stretching Effect on Gymnasts’ Speed in Vaulting

2003 ◽  
Vol 15 (4) ◽  
pp. 383-391 ◽  
Author(s):  
Theophanis Siatras ◽  
Georgios Papadopoulos ◽  
Dimitra Mameletzi ◽  
Vasilios Gerodimos ◽  
Spiros Kellis
Keyword(s):  
Repeated Measures ◽  
Acute Effect ◽  
Static Stretching ◽  
Warm Up ◽  
Dynamic Stretching ◽  
Significant Difference ◽  
Post Hoc ◽  
Stretching Effect ◽  
Stretching Exercises

Although warm-up and stretching exercises are routinely performed by gymnasts, it is suggested that stretching immediately prior to an activity might affect negatively the athletic performance. The focus of this investigation was on the acute effect of a protocol, including warm-up and static and dynamic stretching exercises, on speed during vaulting in gymnastics. Eleven boys were asked to perform three different protocols consisting of warm-up, warm-up and static stretching and warm-up and dynamic stretching, on three nonconsecutive days. Each protocol was followed by a “handspring” vault. One-way analysis of variance for repeated-measures showed a significant difference in gymnasts’ speed, following the different protocols. Tukey’s post hoc analysis revealed that gymnasts mean speed during the run of vault was significantly decreased after the application of the static stretching protocol. The findings of the present study indicate the inhibitory role of an acute static stretching in running speed in young gymnasts.

scholarly journals The Effect of Kelulut Honey on Fasting Blood Glucose and Metabolic Parameters in Patients with Impaired Fasting Glucose

2019 ◽  
Vol 2019 ◽  
pp. 1-7 ◽  
Author(s):  
Mohd Radzniwan Rashid ◽  
Khairun Nain Nor Aripin ◽  
Fathima Begum Syed Mohideen ◽  
Nizam Baharom ◽  
Khairani Omar ◽  
...  
Keyword(s):  
Impaired Fasting Glucose ◽  
Fasting Glucose ◽  
Low Density Lipoprotein ◽  
Fasting Blood Glucose ◽  
Daily Intake ◽  
Density Lipoprotein ◽  
Metabolic Parameters ◽  
Control Group ◽  
Significant Difference ◽  
Group Control Group

Background. Impaired fasting glucose (IFG) poses a higher risk of diabetes. Honey has been reported to improve metabolic abnormalities including lowering hyperglycemia. This study is sought at determining the effect of Malaysian Kelulut honey (KH) on fasting glucose levels and metabolic parameters in IFG patients. Methods. This quasi-experimental intervention study of 30-day duration was conducted among 60 adult patients with IFG. They were allocated into taking 30 g/day KH group (experimental group, n=30) and not taking KH group (control group, n=30). Body mass index (BMI), waist circumference, blood pressure (BP), fasting glucose, and lipid profile levels (total cholesterol, triglyceride, high-density lipoprotein, and low-density lipoprotein) were measured before and after treatment. Results. There was no significant difference in all measured variables at day 30 compared to day 1 within both groups. Similarly, all measured variables neither at day 1 nor at day 30 had shown a statistically significant difference between the groups. Conclusions. Daily intake of 30 g KH for 30 days resulted in insignificant effect on fasting glucose, fasting lipid profiles, and other metabolic parameters in patients with IFG. Further studies that employ longer study duration are needed to ascertain the finding.

PENGARUH KOMUNIKASI TERAPEUTIK TERHADAP HARGA DIRI KLIEN DENGAN GAGAL GINJAL KRONIS

2019 ◽  
Vol 1 (1) ◽  
pp. 28
Author(s):  
Juniyaska Hari Pratama ◽  
Ninuk Dwi Kurniati ◽  
Abu Bakar
Keyword(s):  
Renal Failure ◽  
Chronic Renal Failure ◽  
Treatment Group ◽  
Healing Process ◽  
Self Esteem ◽  
Communication Intervention ◽  
Rank Test ◽  
Control Group ◽  
Therapeutic Communication ◽  
Significant Difference

Introduction: Chronic renal failure is clinical syndrome caused by declining renal function, lasting progressively and irreversible. Physical change due to organ function decline will affect client psychologicaly and socially. These changes cause self esteem disorder where client tend to use maladaptive coping with manifestation of frequent irritating, angry, anxiety, and depression. Therapeutic communication between nurse and client that lead to client healing process which planned in conscious, purposive manner and this activity is centered on client. Method: This research used quasi experimental. Total sample in this research was 12 clients with chronic renal failure that meet inclusion criteria grouped in two groups: treatment group and control group. Independent variable was therapeutic communication while dependent variable was self esteem. In this research data analysis used was Wilcoxon Sign Rank Test with significance α ≤ 0,05 and Mann Whitney Test with significance α ≤0,05. Result: Result obtained after therapeutic communication intervention provided was p = 0,002 where there is significant difference on client self esteem before and after therapeutic communication intervention given. Result showed that there is significant difference between treatment group and comparative group with p = 0.026. Discussion: It is concluded that therapeutic communication has effect on improving self esteem in client with chronic renal failure. Therapeutic communication helps client to express his/her feeling and problems clients self esteem were improved.

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