scholarly journals Effect of Core Training on Trunk Flexor Musculature in Male Soccer Players

2017 ◽  
Vol 1 (04) ◽  
pp. E147-E154 ◽  
Author(s):  
Yohei Takai ◽  
Miyuki Nakatani ◽  
Takuya Akamine ◽  
Katsuyuki Shiokawa ◽  
Daisuke Komori ◽  
...  
Keyword(s):  
Body Mass ◽  
Training Group ◽  
Soccer Players ◽  
Whole Body ◽  
Control Group ◽  
Training Groups ◽  
Trunk Segment ◽  
Before And After ◽  
Core Training ◽  
Training Modalities

AbstractThe present study aimed to elucidate the effect of core training on trunk flexor musculature in athletes. Twenty-eight collegiate male soccer players were randomly assigned to three groups: a training group that performed core exercises with wheeled platforms (WP), a training group that performed body mass-based core exercise (BME), and a control group that did not perform core exercise training (CON). WP and BME trained twice a week for 10 weeks. The WP performed 8–14 exercises with wheeled platforms. BME conducted four core exercises to failure. Before and after the intervention, trunk segment lean body mass (LBM) was measured using a whole-body dual-energy X-ray absorptiometry scanner. Muscle thicknesses (MTs) of the rectus abdominis (RA), external oblique, internal oblique (IO), and transverse abdominis were determined with an ultrasound apparatus. No significant changes for any measured variables were found in CON. In both training groups, the trunk segment LBM was significantly increased through the intervention. While MT for IO significantly increased in the two training groups, significant increases in MT for RA were found in only WP. For collegiate soccer players, the core training programs adopted here can be effective in increasing trunk segment LBM, but the effectiveness on the trunk flexor muscularity differs between the two training modalities.

scholarly journals Effect of Core Training Program on Physical Functional Performance in Female Soccer Players

2016 ◽  
Vol 9 (5) ◽  
pp. 115 ◽  
Author(s):  
Cengiz Taskin
Keyword(s):  
Functional Performance ◽  
Vertical Jump ◽  
Training Group ◽  
Soccer Players ◽  
Control Group ◽  
The Core ◽  
Standing Long Jump ◽  
Long Jump ◽  
The Mean ◽  
Core Training

<p class="apa">The purpose of this study was to determine the effect of core training program on speed, acceleration, vertical jump, and standing long jump in female soccer players. A total of 40 female soccer players volunteered to participate in this study. They were divided randomly into 1 of 2 groups: core training group (CTG; n = 20) and control group (CG; n = 20). The mean (SD) age was 19.05 ± 1.15 years, height was 160.60 ± 4.22 cm, weight was 56.45 ± 3.33 kg, and sport age was 4.50 ± 1.24 for the core training group; the mean (SD) age was 18.55 ± 0.76 years, height was 159.10 ± 3.86 cm, weight was 52.20 ± 3.60 kg, and sport age was 3.35 ± 0.75 years for the control group. Following randomization, the 2 groups did not differ significantly (p&gt;0.05) in any of the dependent variables. The subjects in the control group did not participate in the training and participated only in the pre- and posttest measurements. To evaluate the effect of core training over the functional performance, we applied a testing procedure that included measurements of speed, acceleration, vertical jump, and standing long jump. The core training group showed a 3.4%, 5.9%, 13.3%, 4.2% improvement in speed, acceleration, vertical jump, and standing long jump (respectively) (P&lt;0.05), whereas the control group did not change (P&gt;0.05). In conclusion, Core exercises were improved speed, acceleration, vertical jump, and standing long jump in 18-19 years-old female soccer players. Therefore, it is believed core training is necessary for optimal sport performance and should not be dismissed for all sport branches.</p>

scholarly journals Effects of Overspeed or Overload Plyometric Training on Jump Height and Lifting Velocity

2020 ◽  
Vol 4 (02) ◽  
pp. E32-E38
Author(s):  
Nicolay Stien ◽  
Morten Strate ◽  
Vidar Andersen ◽  
Atle Hole Saeterbakken
Keyword(s):  
Body Mass ◽  
Passive Control ◽  
External Loading ◽  
Control Group ◽  
Jump Height ◽  
Mass Loading ◽  
Plyometric Training ◽  
Training Experience ◽  
Training Groups ◽  
Training Modalities

AbstractThe aim of this study was to examine the effects of overspeed or overload plyometric training on jump height and lifting velocity in resistance trained females without plyometric training experience. Fifty-six participants (age: 21.2±1.7 years; body mass: 65.1±8.2 kg; height: 168.0±5.9 cm) were randomly allocated to either an overspeed (n=18), overload (n=18), or passive control (n=16) group. The two training groups completed 18.7±1.7 sessions consisting of three different plyometric exercises with overspeed or overload over eight weeks. Apart from the external loading, the two training modalities were identical. Following the training period, the changes in the recorded variables were not significantly different from those in the control group, nor did the training groups differ from each other. The training groups improved peak and average lifting velocity in the 40 and 60% of body mass loading conditions (9.50–33.37%, p=<0.001–0.038), whereas only the average lifting velocity improved in the 80% of body mass loading condition (OS: 14.47%, p<0.001 and OL: 23.13%, p<0.001). No significant changes occurred in the control group (9.18–13.55%, P=0.062–0.980). Overspeed and overload plyometric training may be viable methods for improving lifting velocity, but not squat jump height, in a population without plyometric training experience.

scholarly journals Fitness Effects of 10-Month Frequent Low-Volume Ball Game Training or Interval Running for 8–10-Year-Old School Children

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Malte Nejst Larsen ◽  
Claus Malta Nielsen ◽  
Christina Ørntoft ◽  
Morten Bredsgaard Randers ◽  
Eva Wulff Helge ◽  
...  
Keyword(s):  
School Children ◽  
High Intensity ◽  
Whole Body ◽  
Group Differences ◽  
Control Group ◽  
Training Groups ◽  
High Intensity Training ◽  
Fitness Effects ◽  
Before And After ◽  
Low Volume

We investigated the exercise intensity and fitness effects of frequent school-based low-volume high-intensity training for 10 months in 8–10-year-old children. 239 Danish 3rd-grade school children from four schools were cluster-randomised into a control group (CON,n=116) or two training groups performing either5×12 min/wk small-sided football plus other ball games (SSG,n=62) or interval running (IR,n=61). Whole-body DXA scans, flamingo balance, standing long-jump, 20 m sprint, and Yo-Yo IR1 children’s tests (YYIR1C) were performed before and after the intervention. Mean running velocity was higher (p<0.05) in SSG than in IR (0.88±0.14versus0.63±0.20 m/s), while more time (p<0.05) was spent in the highest player load zone (>2;5.6±3.4versus3.7±3.4%) and highest HR zone (>90%HRmax;12.4±8.9versus8.4±8.0%) in IR compared to SSG. After 10 months, no significant between-group differences were observed for YYIR1C performance and HR after 2 min of YYIR1C (HRsubmax), but median-split analyses showed thatHRsubmaxwas reduced (p<0.05) in both training groups compared to CON for those with the lowest aerobic fitness (SSG versus CON: 3.2%  HRmax[95% CI: 0.8–5.5]; IR versus CON: 2.6%  HRmax[95% CI: 1.1–5.2]). After 10 months, IR had improved (p<0.05) 20 m sprint performance (IR versus CON: 154 ms [95% CI: 61–241]). No between-group differences (p>0.05) were observed for whole-body or leg aBMD, lean mass, postural balance, or jump length. In conclusion, frequent low-volume ball games and interval running can be conducted over a full school year with high intensity rate but has limited positive fitness effects in 8–10-year-old children.

scholarly journals The Impacts of Elastic Band Training on the Posterior Abdominal Wall Muscles of Olympic-Style Weightlifters

2019 ◽  
Vol 7 (5) ◽  
pp. 54
Author(s):  
Kenan Erdağı ◽  
Necdet Poyraz ◽  
Sadullah Bahar ◽  
Bülent Işık
Keyword(s):  
Abdominal Wall ◽  
Training Group ◽  
Control Group ◽  
Thoracic Vertebrae ◽  
Elastic Band ◽  
Training Groups ◽  
Posterior Abdominal Wall ◽  
Before And After ◽  
Trochanter Minor ◽  
Hip Flexion

Purpose: In this study, it was aimed to examine the impacts of elastics band trainings, which were applied for 12 weeks on the Olympic-style weightlifters, on their sportive performances and psoas, ilacus, and quadratus lumborum muscle volumes.Materials and Methods: This research study was conducted on 4 groups, comprising of 12 men (elastic band training group (n=6), control group (n=6)), and 12 women (elastic band training group (n=6), control group (n=6)) Olympic-style weightlifters. The athletes in the elastic band training groups were engaged in standing hip flexion exercises, clamshell exercises, lying hip flexion exercises, and side bend exercises. Before and after the elastic band training applied to the Olympic-style weightlifters for 12 weeks, (1.5 Tesla) MRI device was used for the axial images of the regions starting from the 12th thoracic vertebrae to the trochanter minor of femur. The volume calculations of the muscles were conducted via the Cavalieri method.Results: After the elastic band training, it was determined that the total volume of posterior abdominal wall muscles of the men and women weightlifters in the elastic band training groups and the total weights lifted by them were higher compared to those of the control group individuals (p<0,001).Conclusion: As the result, it can be stated that including the posterior abdominal wall muscle developing trainings into the general programs of the weightlifters in the Olympic weightlifting sport can both enable an increase in the volumes of the muscles in this region and positively influence the performance of the athletes.

scholarly journals Postural control and functional performance after core training in young soccer players

2018 ◽  
Vol 7 (2) ◽  
Author(s):  
Ahmet Kaan Aslan ◽  
Nurtekin Erkmen ◽  
Samet Aktaş ◽  
Faruk Güven
Keyword(s):  
Scoring System ◽  
Functional Performance ◽  
Training Group ◽  
The Other ◽  
Soccer Players ◽  
Control Group ◽  
Balance Performance ◽  
Hop Test ◽  
Core Training ◽  
Balance Error

This study aimed to determine the effects of an 8-week core training on balance and functional performance of young soccer players. Thirty young soccer players (age: 16.23 ± 0.69 years) were included in the study. Soccer players were randomly divided into two equal groups as control group and training group. The balance performance was measured with Balance Error Scoring System. Pro Agility Test was used for determining agility. The standing broad jump test used in order to detect explosive power of leg muscles was conducted in accordance with Eurofit Test Battery. Standing broad jump values were gathered for both of the legs, dominant leg and non-dominant leg. Triple-Hop Test was used to specify muscle strength, power and balance properties of subjects. Mann-Whitney U test for comparisons between groups and Wilcoxon test for pretest-posttest comparison were used. It was observed that standing broad jump in dominant leg of the training group increased after 8-week core training (p<0.05), but there was no statistically significant change (p>0.05) in control group. After 8-week core training, standing broad jump performance with double-leg didn’t show any statistically significant difference for both of the groups (p>0.05). After the training, triple-hop test performance in the training group increased significantly (p<0.05), but there wasn’t any change for control group (p>0.05). When pretest-posttest performance results of subjects are compared it has been observed that agility test completion time of experimental group significantly decreased as 1. 10 yard (p<0.05), 2. 10 yard (p<0.05) and totally (p<0.05). On the other hand, a similar decrease was observed in control group as well (1. 10 yard: Z=-2.201; p<0.05, 2. 10 yard: Z=-1.992; p<0.05) and totally Z=-2.201; p<0.05). After an 8-week training, an statistically significant change wasn’t observed in soccer players’ balance performance measured by Balance Error Scoring System for both the training group and control group in all BESS scores  p>0.05). In conclusion, the results of the research indicate that the soccer-specific 8-week core training program can improve the performance of broad jump and triple jump in non-dominant legs of young soccer players. On the other hand, the results indicates that it may not affect long jump, agility and balance performance in dominant leg.

scholarly journals Effects of Plyometric and Short Sprint with Change-of-Direction Training in Male U17 Soccer Players

2021 ◽  
Vol 11 (11) ◽  
pp. 4767
Author(s):  
Ghaith Aloui ◽  
Souhail Hermassi ◽  
Lawrence D. Hayes ◽  
Nilihan E. M. Sanal Hayes ◽  
El Ghali Bouhafs ◽  
...  
Keyword(s):  
Body Mass ◽  
Body Fat ◽  
Training Group ◽  
Soccer Players ◽  
Control Group ◽  
Static Balance ◽  
Post Intervention ◽  
Balance Test ◽  
Youth Soccer ◽  
Change Of Direction

This project investigated the effect of adding 8 weeks of bi-weekly plyometric and short sprint with change-of-direction (PSSCoD) training into standard training for elite youth soccer players from Tunisia. A training group (n = 18; age: 16.6 ± 0.5 years; body mass: 63.2 ± 4.8 kg; stature: 1.73 ± 0.07 m; body fat: 11.2 ± 1.7%), and control group (n = 16; age: 16.6 ± 0.5 years; body mass: 63.6 ± 4.3 kg; height: 1.73 ± 0.06 m; body fat: 11.6 ± 1.5%) participated. The pre- and post-intervention measures were squat-jump (SJ), countermovement jump (CMJ), standing long jump (SLJ), 5 m and 20 m sprint, change-of-direction ability (4 × 5 m sprint test (S 4 × 5 m)), repeated sprint ability (RSA), and static balance (stork balance test). The training group displayed superior jump (all p < 0.05; d > 0.49), sprint (p < 0.05; d > 0.52), change-of-direction ability (p < 0.01; d = 0.78), RSA (p < 0.01; d > 0.70), and static balance (p < 0.05; d > 0.49) improvements. Adding bi-weekly PSSCoD improves the athletic performance of young soccer players.

scholarly journals A method for evaluation of patient-specific lean body mass from limited-coverage CT images and its application in PERCIST: comparison with predictive equation

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Jingjie Shang ◽  
Zhiqiang Tan ◽  
Yong Cheng ◽  
Yongjin Tang ◽  
Bin Guo ◽  
...  
Keyword(s):  
Lean Body Mass ◽  
Body Mass ◽  
Whole Body ◽  
Patient Specific ◽  
Predictive Equation ◽  
Reference Standard ◽  
Pet Ct ◽  
Before And After ◽  
Percist 1.0 ◽  
Limited Coverage

Abstract Background Standardized uptake value (SUV) normalized by lean body mass ([LBM] SUL) is recommended as metric by PERCIST 1.0. The James predictive equation (PE) is a frequently used formula for LBM estimation, but may cause substantial error for an individual. The purpose of this study was to introduce a novel and reliable method for estimating LBM by limited-coverage (LC) CT images from PET/CT examinations and test its validity, then to analyse whether SUV normalised by LC-based LBM could change the PERCIST 1.0 response classifications, based on LBM estimated by the James PE. Methods First, 199 patients who received whole-body PET/CT examinations were retrospectively retrieved. A patient-specific LBM equation was developed based on the relationship between LC fat volumes (FVLC) and whole-body fat mass (FMWB). This equation was cross-validated with an independent sample of 97 patients who also received whole-body PET/CT examinations. Its results were compared with the measurement of LBM from whole-body CT (reference standard) and the results of the James PE. Then, 241 patients with solid tumours who underwent PET/CT examinations before and after treatment were retrospectively retrieved. The treatment responses were evaluated according to the PE-based and LC-based PERCIST 1.0. Concordance between them was assessed using Cohen’s κ coefficient and Wilcoxon’s signed-ranks test. The impact of differing LBM algorithms on PERCIST 1.0 classification was evaluated. Results The FVLC were significantly correlated with the FMWB (r=0.977). Furthermore, the results of LBM measurement evaluated with LC images were much closer to the reference standard than those obtained by the James PE. The PE-based and LC-based PERCIST 1.0 classifications were discordant in 27 patients (11.2%; κ = 0.823, P=0.837). These discordant patients’ percentage changes of peak SUL (SULpeak) were all in the interval above or below 10% from the threshold (±30%), accounting for 43.5% (27/62) of total patients in this region. The degree of variability is related to changes in LBM before and after treatment. Conclusions LBM algorithm-dependent variability in PERCIST 1.0 classification is a notable issue. SUV normalised by LC-based LBM could change PERCIST 1.0 response classifications based on LBM estimated by the James PE, especially for patients with a percentage variation of SULpeak close to the threshold.

Effects of High Frequency Exercise in Patients before and after Elective Percutaneous Coronary Intervention

2008 ◽  
Vol 7 (4) ◽  
pp. 307-313 ◽  
Author(s):  
Maria Bäck ◽  
Bertil Wennerblom ◽  
Susanna Wittboldt ◽  
Åsa Cider
Keyword(s):  
Aerobic Capacity ◽  
High Frequency ◽  
Muscle Function ◽  
Training Group ◽  
Coronary Intervention ◽  
Control Group ◽  
Maximal Aerobic Capacity ◽  
Elective Percutaneous Coronary Intervention ◽  
Percutaneous Coronary ◽  
Before And After

Background: The aim of this study was to evaluate the effects of high frequency exercise for patients before and after an elective percutaneous coronary intervention (PCI), with special reference to maximal aerobic capacity, muscle function, health related quality of life (HRQoL), waist–hip ratio (WHR) and restenosis. Methods: A randomised, controlled study was performed in Sweden between 2004 and 2006 in thirty-seven patients (five women) with stable coronary artery disease (CAD), age 63.6 ± 6.9 years, randomised to either high frequency exercise or control group. The patients in the training group performed three endurance resistance exercises and trained on a cycle ergometer 30 min, 5 times a week for 8 months at 70% of VO2max. Results: Patients in the training group significantly improved their maximal aerobic capacity (15 (9–46) vs. 8 (0–18)% p ≤ 0.05), shoulder flexion ( p ≤ 0.01), shoulder abduction ( p ≤ 0.01) and heel-lift ( p ≤ 0.05) compared to the control group. There were no significant differences between the groups in HRQoL, WHR and restenosis. Conclusion: High frequency exercise in patients treated with PCI seems to improve maximal aerobic capacity and muscle function, which may reduce the risks of further progression of atherosclerosis. However, further larger studies are needed to fully investigate the effects of exercise in patients with PCI.

scholarly journals Effect of 12 Months of Exercise with Stachys Lavandulifolia Consumption on anxiety, Metabolic Syndrome Profiles and Antioxidant Defense and Lipid Peroxidation in Women with Syndrome Metabolic

2020 ◽  
Author(s):  
Ali osali ◽  
Alireza Rostami
Keyword(s):  
Metabolic Syndrome ◽  
Lipid Peroxidation ◽  
Aerobic Exercise ◽  
Antioxidant Defense ◽  
Training Group ◽  
Serum Levels ◽  
Control Group ◽  
Negative Effects ◽  
Beneficial Effects ◽  
Before And After

Abstract BackgroundThe purpose of this study was to investigate the effect of 12 months of aerobic exercise combining stachys lavandulifolia (S. lavandulifolia) consumption on anxiety, Metabolic Syndrome profiles and antioxidant defense (Glutathione) and lipid peroxidation (Malondialdehyde) in 50-65 years old women with syndrome metabolic.Methods48 women with syndrome Metabolic were randomly divided into four groups: exercise (n=12), exercise+S. lavandulifolia (n=12), S. lavandulifolia (n=12) and control group (n=12). S. lavandulifolia groups consumed 3 g aerial parts of S. lavandulifolia daily. Training groups performed an exercise protocol of aerobic exercise for 12 months (three sessions per week). Blood samples were obtained before and after training period for antioxidant indicators and lipid degradation measurement. Also, Beck anxiety questionnaire used for evaluating levels of anxiety. T-test and one-way analysis of variance were used for the evaluation of within-group and between-group differences, respectively.ResultsA significant increase was observed in serum levels of Malondialdehyde (P =0.004), Catalase indexes (Pvalue= 0.01), and Glutathione (P=0.001) in the training group and S. lavandulifolia groups after 12 months. Body weight, BMI, and SBP and Anexiety was decreased significantly greater in exercise +S. lavandulifolia group compared to control, exercise and S. lavandulifolia groups (P=0.001)ConclusionAnxiolytic effect and Anti-Oxidative Stress Activity was seen, so taking S. lavandulifolia along with exercises may have beneficial effects on reinforcement the antioxidant system and prevention of anxiety and The negative effects of indicators related to cardiovascular disease in women with metabolic syndrome.

scholarly journals The efficacy of repetitions-in-reserve vs. traditional percentage-based resistance training: a 4-week pre-season randomized intervention in elite rugby league players

2021 ◽  
Author(s):  
Jonathan Sinclair ◽  
Christopher James Edmundson ◽  
Ian Bentley
Keyword(s):  
Body Mass ◽  
Bench Press ◽  
Training Group ◽  
Rugby League ◽  
Post Intervention ◽  
Training Block ◽  
Training Groups ◽  
Strength Based ◽  
Randomized Intervention ◽  
Repetitions To Failure

Abstract Purpose This two-experiment study aimed to examine (1) the accuracy and reliability of repetitions-in-reserve and (2) using a randomized trial, the efficacy of repetition-in-reserve compared to traditional percentage-based training during a 4-week pre-season strength training block in elite rugby league players. Methods In experiment 1, participants performed deadlift, bench press and weighted pull up exercises for 3, 6, and 9 repetitions to failure using self-selected loads. This was undertaken on two occasions, separated by 8-weeks. In experiment 2, participants were randomly separated into either repetitions-in-reserve or percentage-based training groups. They completed a 4-week pre-season training block with training prescribed based on the group to which they were assigned. Measures of body mass and 3 repetition max strength in the aforementioned exercises were measured pre and post intervention. Results Experiment 1 showed that repetitions-in-reserve exhibited generally acceptable levels of accuracy and moderate-good levels of reliability. However, the deadlift when the required number of repetitions was 6 and 9 and the bench press when number of repetitions was 9 were not associated with acceptable levels of accuracy and reliability, respectively. Experiment 2 showed that there were no differences between repetitions-in-reserve or percentage-based training group for the strength outcomes, although there were significant increases in body mass in the percentage-based group (pre = 85.6 ± 10.6 kg, post = 86.4 ± 10.8 kg). Conclusion Repetitions-in-reserve is generally associated with acceptable levels of accuracy and moderate-good levels of reliability, although there were some exceptions for the deadlift in relation to accuracy and bench press for reliability. Experiment 2 shows that although there were no differences between groups for the strength-based outcomes, significant increases in body mass in the percentage-based group may make this approach a more effective approach to prepare players for the rigors of the rugby league season.

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