The effects of 20-m repeated sprint training on aerobic capacity in college volleyball players

Summary Study aim: The purpose of this study was to examine the effects of a repeated sprint training program in addition to volleyball training on the aerobic capacity of college volleyball players. Materials and methods: Eighteen male volleyball players were randomly assigned to either an experimental group (n = 9, age: 21.2 ± 1.3 years) or a control (n = 9, age: 21.2 ± 1.6 years) group. Both groups followed a traditional volleyball training program three times per week for 6 weeks. The experimental group additionally performed a repeated sprint training protocol immediately before each volleyball training session. The repeated sprint training consisted of 1-3 sets of 5 × 20 m maximal sprints with 20 seconds of active recovery between sprints and 4 min of passive recovery between sets. Before and after the 6-week training period, all participants performed an incremental treadmill test to determine maximal oxygen uptake (VO2max) and time to exhaustion, and the repeated sprint test (10 × 20 m with a 20‑second recovery between each sprint).Results: The experimental group showed significant improvements in VO2max (+7.1 ± 4.8%; p = 0.001) and running time to exhaustion (+15.8 ± 6.8%; p = 0.004) after training. The best 20-m sprint time (−2.3 ± 2.5%; p = 0.029), mean sprint time (−5.3 ± 3.1%; p = 0.001) and fatigue index (−34.1 ± 28.2%; p = 0.012) also improved significantly in the experimental group. None of these variables changed significantly in the control group (p > 0.05).Conclusions: The current findings indicate that the addition of a repeated sprint training program can improve both the aerobic capacity and anaerobic performance of college volleyball players.

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EFFECTS OF REPEATED SPRINT TRAINING ON ISOCAPNIC BUFFERING PHASE IN VOLLEYBALL PLAYERS

Revista Brasileira de Medicina do Esporte ◽

10.1590/1517-869220182404185842 ◽

2018 ◽

Vol 24 (4) ◽

pp. 286-290

Author(s):

Selcen Kormaz Erylmaz ◽

Kerimhan Kaynak ◽

Metin Polat ◽

Sami Aydoğan

Keyword(s):

Training Program ◽

Ventilatory Threshold ◽

Training Session ◽

Control Group ◽

Sprint Training ◽

Level Of Evidence ◽

Sprint Speed ◽

Repeated Sprint ◽

Volleyball Players ◽

Experimental Group

ABSTRACT Introduction: The region between the ventilatory threshold (VT) and respiratory compensation point (RCP) is defined as the isocapnic buffering (ICB) phase and represents a phase of compensation for exercise-induced metabolic acidosis. There is sparse literature examining the effects of physical training on ICB phase in athletes. Objectives: The purpose of this study was to examine the effects of a repeated sprint training program on the ICB phase of college volleyball players. Methods: Eighteen male volleyball players were randomly assigned to either an experimental group (n=9) or a control group (n=9) and followed a traditional volleyball training program three times per week for six weeks. The experimental group additionally performed a repeated sprint training protocol immediately before each volleyball training session. Before and after the 6-week training period, all participants performed an incremental treadmill test to determine VT, RCP, and maximal oxygen uptake (VO2max). The ICB phases were calculated as VO2 (ml/kg/min) and sprint speed (km/h). Results: The experimental group showed significant improvements in ICB phase, RCP, VO2max and maximal sprint speed after training (p<0.01). There were no significant changes in VT after training in the experimental group (p>0.05). None of these variables changed significantly in the control group (p>0.05). Conclusions: These findings indicate that repeated sprint training can enhance the ICB phase of volleyball players, which may be attributable to an improvement in buffering capacity leading to a shift in RCP towards higher intensities without any change in VT. The increase in the ICB phase may an important factor in terms of improvement in the high-intensity exercise tolerance of athletes. Level of Evidence II; Therapeutic studies - Investigating the results of treatment.

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On the Use of the Repeated-Sprint Training in Hypoxia in Tennis

Frontiers in Physiology ◽

10.3389/fphys.2020.588821 ◽

2020 ◽

Vol 11 ◽

Author(s):

Cyril Brechbuhl ◽

Franck Brocherie ◽

Sarah J. Willis ◽

Thomas Blokker ◽

Bernard Montalvan ◽

...

Keyword(s):

Test Performance ◽

Test Time ◽

Control Group ◽

Time To Exhaustion ◽

Sprint Training ◽

Tennis Players ◽

Technical Performance ◽

Repeated Sprint ◽

Total Hemoglobin ◽

Blood Lactate Accumulation

PurposeTo examine physiological and technical responses to repeated-sprint training in normobaric hypoxia at ∼3,000 m (RSH, n = 11) or in normoxia (RSN, n = 11) compared to a control group (CON, n = 8) in well-trained tennis players. Participants were 28.8 ± 5.9 years old without any previous experience of training in hypoxia.MethodsIn addition to maintaining their usual training (CON), both RSH and RSN groups completed five tennis specific repeated-shuttle sprint sessions (4 × 5 × ∼8 s maximal sprints with ∼22 s passive recovery and ∼5 min rest between sets) over 12 days. Before (Pre), the week after (Post-1) and 3 weeks after Post-1 (Post-2), physical/technical performance during Test to Exhaustion Specific to Tennis (TEST), repeated-sprint ability (RSA) (8 × ∼20 m shuttle runs—departing every 20 s) and heart rate variability (HRV) were assessed.ResultsFrom Pre to Post-1 and Post-2, RSH improved TEST time to exhaustion (+18.2 and +17.3%; both P < 0.001), while the “onset of blood lactate accumulation” at 4 mmol L–1 occurred at later stages (+24.4 and +19.8%, both P < 0.01). At the same time points, ball accuracy at 100% V̇O2max increased in RSH only (+38.2%, P = 0.003 and +40.9%, P = 0.007). Markers of TEST performance did not change for both RSN and CON. Compared to Pre, RSA total time increased significantly at Post-1 and Post-2 (−1.9 and −2.5%, P < 0.05) in RSH only and this was accompanied by larger absolute Δ total hemoglobin (+82.5 and +137%, both P < 0.001). HRV did not change either supine or standing positions.ConclusionFive repeated sprint training sessions in hypoxia using tennis specific shuttle runs improve physiological and technical responses to TEST, RSA, and accompanying muscle perfusion responses in well-trained tennis players.

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Jog-Walk Training in Cardiorespiratory Fitness of Adults with down Syndrome

Perceptual and Motor Skills ◽

10.2466/pms.2003.96.3c.1239 ◽

2003 ◽

Vol 96 (3_suppl) ◽

pp. 1239-1251 ◽

Cited By ~ 19

Author(s):

Vassilis Tsimaras ◽

Paraskevi Giagazoglou ◽

Eleni Fotiadou ◽

Kosmas Christoulas ◽

Nickoletta Angelopoulou

Keyword(s):

Down Syndrome ◽

Exercise Training ◽

Training Program ◽

Aerobic Training ◽

Minute Ventilation ◽

Physiological Parameters ◽

Peak Oxygen Consumption ◽

Control Group ◽

Time To Exhaustion ◽

Experimental Group

The purpose of this study was to evaluate the effects of an aerobic training program on adults with Down syndrome. 25 male adults with Down syndrome ( M age = 24.6 yr., IQs = 45–60) participated in a 12-wk. exercise training study. Subjects were assigned to an experimental group ( n = 15) and a control group ( n = 10). Pre- and posttraining treadmill tests were performed to determine the following peak physiological parameters: heart rate (HR peak), peak minute ventilation (VE peak), peak oxygen consumption (VO2 peak, absolute and relative), and time to exhaustion (min.). The experimental group underwent a 12-wk. interval training program. The control group received no structured exercise training during this period. Following the 12-wk. training program, significant improvements ( p<.05) in peak physiological parameters were seen for the experimental group for VO2 peak (both relative and absolute), VE peak, and time to exhaustion. No significant improvements in peak physiologic parameters were seen in the control group Consistent with prior research using similar subjects, we concluded that adults with Down syndrome are able to improve their aerobic capacity when performing a systematic and well-designed aerobic training program.

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Effect of multi-dimensional training program, using a combination method of TICH and ABA, on improve autistic children's behavior

European Psychiatry ◽

10.1016/j.eurpsy.2017.01.442 ◽

2017 ◽

Vol 41 (S1) ◽

pp. S440-S440

Author(s):

M. Hayati ◽

S. Rezaie Pelleshahi ◽

N. Farrokhi

Keyword(s):

Training Program ◽

Social Life ◽

Training Session ◽

Combination Method ◽

Control Group ◽

Autistic Children ◽

Validity And Reliability ◽

Competing Interest ◽

And Control ◽

Experimental Group

IntroductionAutistic children could not organize their social life direction and understanding and interpreting other sensation and only achieve so many information by looking others and instinct for creating the best space for achieving success.ObjectiveThe present study was designed to evaluate the efficacy of a multi-dimensional training program, using a combination of TICH and ABA on improving the behavior of autistic children in the city of Karaj.MethodThe population in this study was all autistic students in a boys exceptional children school in city of Karaj. All participants (n = 16) were randomly assigned in two groups, experimental group (n = 8), and control group (n = 8). This research was carried out experimentally, and multi-dimensional training program was carried out on experimental group in the context of 12 training session for 2 months and two-hour sessions per week. During this time, the control group did not receive any training. In order to collect data the Autism Diagnostic Inventory that was proven its validity and reliability has been used.The collected data were analyzed with co-variance method.ResultThe results showed that the multi-dimensional training program had significant influence on social and verbal communication skills and the reduction of stereotyped behaviors in autistic children.ConclusionTherefore, we can plan a multi-dimensional approach as a comprehensive training program for this group of children and used it weekly as an independent course in autistic children academic schedule.Disclosure of interestThe authors have not supplied their declaration of competing interest.

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Improving Airline Pilots’ Visual Scanning and Manual Flight Performance through Training on Skilled Eye Gaze Strategies

Safety ◽

10.3390/safety7040070 ◽

2021 ◽

Vol 7 (4) ◽

pp. 70

Author(s):

Olivier Lefrançois ◽

Nadine Matton ◽

Mickaël Causse

Keyword(s):

Training Program ◽

Eye Gaze ◽

Training Session ◽

Control Group ◽

Flight Performance ◽

Visual Scanning ◽

Aviation Accidents ◽

Airline Pilots ◽

Scanning Strategies ◽

Experimental Group

Poor cockpit monitoring has been identified as an important contributor to aviation accidents. Improving pilots’ monitoring strategies could therefore help to enhance flight safety. During two different sessions, we analyzed the flight performance and eye movements of professional airline pilots in a full-flight simulator. In a pre-training session, 20 pilots performed a manual approach scenario as pilot flying (PFs) and were classified into three groups according to their flight performance: unstabilized, standard, and most accurate. The unstabilized pilots either under- or over-focused various instruments. Their number of visual scanning patterns was lower than those of pilots who managed to stabilize their approach. The most accurate pilots showed a higher perceptual efficiency with shorter fixation times and more fixations on important primary flight instruments. Approximately 10 months later, fourteen pilots returned for a post-training session. They received a short training program and performed a similar manual approach as during the pre-training session. Seven of them, the experimental group, received individual feedback on their own performance and visual behavior (i.e., during the pre-training session) and a variety of data obtained from the most accurate pilots, including an eye-tracking video showing efficient visual scanning strategies from one of the most accurate pilots. The other seven, the control group, received general guidelines on cockpit monitoring. During the post-training session, the experimental group had better flight performance (compared to the control group), and its visual scanning strategies became more similar to those of the most accurate pilots. In summary, our results suggest that cockpit monitoring underlies manual flight performance and that it can be improved using a training program based mainly on exposure to eye movement examples from highly accurate pilots.

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Effects of a positive thinking program on hope and sleep quality in Iranian patients with thalassemia: a randomized clinical trial

BMC Psychology ◽

10.1186/s40359-021-00547-0 ◽

2021 ◽

Vol 9 (1) ◽

Author(s):

Somayeh Makaremnia ◽

Marieh Dehghan Manshadi ◽

Zahra Khademian

Keyword(s):

Clinical Trial ◽

Sleep Quality ◽

Training Program ◽

Randomized Clinical Trial ◽

Thalassemia Major ◽

Trial Registration ◽

Control Group ◽

Positive Thinking ◽

Experimental Group

Abstract Background Thalassemia have a negative impact on the patients' psychological health and sleep quality. This study aimed to determine the effects of a positive thinking training program on hope and sleep quality of patients with thalassemia major. Methods This randomized clinical trial was conducted on 78 patients with thalassemia major including 36 males (46.2%) and 42 females (53.8%) with a mean age of 25.56 ± 29.6 in Iran. Subjects were randomly assigned into experimental and control groups. Experimental group received 16 h training based on positive thinking materials published by Martin Seligman. Control group received only usual programs. Data were collected at baseline, as well as immediately and one month after the intervention, using Snyder’s Hope Scale and the Pittsburgh Sleep Quality Index. Data analysis was performed using SPSS Software 18.0; statistical tests included the independent T-test, the Chi-square, Mann Whitney, and Friedman test. Significance level was set at 0.05 in this study. Results The experimental group had a significantly higher mean hope score compared to the control group immediately (45.38 ± 7.82 vs. 35.32 ± 5.54, P < 0.001) and one month following intervention (44.67 ± 3.47 vs. 35 ± .54, P < 0.001). Moreover, the mean sleep quality scores of the experimental group was significantly greater than that for control group immediately (5.35 ± 2.02 vs. 7 ± 2.4, P = 0.004) and one month after the intervention (4.23 ± 2.2 vs.7.02 ± 3.03, P < 0.001). Conclusion Since our training program on positive thinking improved hope and quality of sleep in patients with thalassemia major, we recommend the use of such courses as an important step toward promotion of hope and sleep quality among these patients. Trial registration The name of the registry: Iranian Registry of Clinical Trials. Trial Registration Number: IRCT2017010431774N1. URL of the trial registry record: https://en.irct.ir/trial/24923. Registration Date: 07/03/2017.

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A Training Proposal to Improve Multidirectional Running Technique in Male and Female Handball Players: A Pilot Study

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph18042056 ◽

2021 ◽

Vol 18 (4) ◽

pp. 2056

Author(s):

Carmen Ferragut ◽

Román Pedreira ◽

José Julio Espina ◽

Helena Vila

Keyword(s):

Team Sports ◽

T Test ◽

Control Group ◽

Sprint Training ◽

Countermovement Jump ◽

Squat Jump ◽

Male And Female ◽

Intervention Protocol ◽

Post Test ◽

Experimental Group

Multidirectional running has been described as an important factor in team sports performance. The aim of the present study was to determine changes in T-test, 505 time, 10 m sprint, squat jump (SJ), countermovement jump (CMJ), countermovement jump right leg (CMJRL), and countermovement jump left leg (CMJLL) following exposure to 12 sessions over 4 weeks of a multidirectional running sprint training intervention in male and female handball players. A total of 31 handball players (15 male and 16 female) were recruited for this study and then randomly assigned to an experimental group (EG) or control group (CG). Male EG players showed improvements in 505 Preferred Side (PS) (p ≤ 0.05), 505 Non-Preferred Side (NPS) (p ≤ 0.05), and 10 m sprint (p ≤ 0.05), while female EG players presented statistically significant improvements between pre- and post-test for the T-test (p ≤ 0.05), 505 PS (p ≤ 0.05), 505 NPS (p ≤ 0.05), and 10 m sprint (p ≤ 0.05). No statistically significant pre- and post-test differences were observed in CG (all p ≥ 0.05) or between male and female players. We found an improvement in handball players’ agility and speed of movement following the intervention protocol, suggesting the need to introduce this program into our training sessions. It may also be necessary to select and develop more specific tests in order to evaluate multidirectional work in handball players.

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Relationship between Repeated Sprint Ability and Aerobic Capacity in Professional Soccer Players

The Scientific World JOURNAL ◽

10.1155/2013/952350 ◽

2013 ◽

Vol 2013 ◽

pp. 1-5 ◽

Cited By ~ 6

Author(s):

Rhys M. Jones ◽

Christian C. Cook ◽

Liam P. Kilduff ◽

Zoran Milanović ◽

Nic James ◽

...

Keyword(s):

Aerobic Capacity ◽

Significant Negative Correlation ◽

Soccer Players ◽

Active Recovery ◽

Maximal Aerobic Capacity ◽

Sprint Time ◽

Repeated Sprint Ability ◽

Professional Soccer ◽

Repeated Sprint ◽

Sprint Ability

Aim. The aim of the present study was to investigate the relationship between maximal aerobic capacity () and repeated sprint ability (RSA) in a group of professional soccer players.Methods. Forty-one professional soccer players (age yrs, height cm, weight kg) were required to perform tests to assess RSA and on two separate days with at least 48 hr rest between testing sessions. Each player performed a treadmill test to determine their and a test for RSA involving the players completing m sprints (turn after 20 m) with 20 s active recovery between each sprint.Results. There was a significant negative correlation between body mass normalised and mean sprint time () (; ) and total sprint time () (, ).Conclusion. Results of the current study indicate that is one important factor aiding soccer players in the recovery from repeated sprint type activities.

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Effectiveness of a Mobile Device–Based Resilience Training Program in Reducing Depressive Symptoms and Enhancing Resilience and Quality of Life in Parents of Children With Cancer: Randomized Controlled Trial (Preprint)

10.2196/preprints.27639 ◽

2021 ◽

Author(s):

Yuanhui Luo ◽

Wei Xia ◽

Ankie Tan Cheung ◽

Laurie Long Kwan Ho ◽

Jingping Zhang ◽

...

Keyword(s):

Depressive Symptoms ◽

Training Program ◽

Mobile Device ◽

Well Being ◽

Control Group ◽

Children With Cancer ◽

Resilience Training ◽

Experimental Group

BACKGROUND Caring for children with cancer can be a stressful experience for parents and may have negative effects on their physical and psychological well-being. Although evidence has shown that resilience is associated with positive psychological well-being, few interventions have been specifically designed to enhance the resilience of parents of children with cancer. OBJECTIVE The aim of this study is to examine the effectiveness of a mobile device–based resilience training program in reducing depressive symptoms and enhancing resilience and quality of life (QoL) in parents of children with cancer. METHODS Parents of children diagnosed with cancer were recruited from the pediatric oncology wards of 3 tertiary hospitals in China. The participants were randomly assigned to either the experimental group (52/103, 50.5%) to undergo an 8-week mobile device–based resilience training program or to the control group (51/103, 49.5%) to receive an 8-week program of placebo information. The study outcomes included resilience, depressive symptoms, and QoL, as measured by the Connor–Davidson Resilience Scale, the Self-Rating Depression Scale, and the Short Form of the 6-Dimension Health Survey, respectively. All data were collected at baseline and at 2 and 6 months of follow-up. The data analysis followed the intention-to-treat principle. A generalized estimating equation was used to examine the effects of the intervention. RESULTS The participants were mostly female (72/103, 69.9%), and their mean age was 33.6 (SD 5.2) years. The participants in the experimental group showed significantly higher levels of resilience (mean 67.96, SD 15.8 vs mean 58.27, SD 19.0; P<.001) and lower levels of depressive symptoms (mean 40.17, SD 9.9 vs mean 46.04, SD 10.9; P<.001) than those in the control group at 6 months of follow-up. The intervention showed statistically significant effects in improving resilience (β=6.082; P=.01) and decreasing depressive symptoms (β=−2.772; P=.04) relative to the control group. The QoL score in the experimental group was higher than that in the control group at 6 months of follow-up (mean 0.79, SD 0.2 vs mean 0.76, SD 0.3; P=.07); however, no statistically significant intervention effect was detected (β=.020; P=.38). CONCLUSIONS The mobile device–based resilience training program effectively enhanced resilience and alleviated depressive symptoms in parents of children with cancer. It is highly recommended that health care professionals incorporate this resilience training program when providing psychological care to parents of children with cancer. CLINICALTRIAL Clinical.Trials.gov NCT04038242; http://clinicaltrials.gov/ct2/show/NCT04038242

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Effectiveness of a Mobile Device–Based Resilience Training Program in Reducing Depressive Symptoms and Enhancing Resilience and Quality of Life in Parents of Children With Cancer: Randomized Controlled Trial

Journal of Medical Internet Research ◽

10.2196/27639 ◽

2021 ◽

Vol 23 (11) ◽

pp. e27639

Author(s):

Yuanhui Luo ◽

Wei Xia ◽

Ankie Tan Cheung ◽

Laurie Long Kwan Ho ◽

Jingping Zhang ◽

...

Keyword(s):

Depressive Symptoms ◽

Training Program ◽

Mobile Device ◽

Well Being ◽

Control Group ◽

Children With Cancer ◽

Resilience Training ◽

Experimental Group

Background Caring for children with cancer can be a stressful experience for parents and may have negative effects on their physical and psychological well-being. Although evidence has shown that resilience is associated with positive psychological well-being, few interventions have been specifically designed to enhance the resilience of parents of children with cancer. Objective The aim of this study is to examine the effectiveness of a mobile device–based resilience training program in reducing depressive symptoms and enhancing resilience and quality of life (QoL) in parents of children with cancer. Methods Parents of children diagnosed with cancer were recruited from the pediatric oncology wards of 3 tertiary hospitals in China. The participants were randomly assigned to either the experimental group (52/103, 50.5%) to undergo an 8-week mobile device–based resilience training program or to the control group (51/103, 49.5%) to receive an 8-week program of placebo information. The study outcomes included resilience, depressive symptoms, and QoL, as measured by the Connor–Davidson Resilience Scale, the Self-Rating Depression Scale, and the Short Form of the 6-Dimension Health Survey, respectively. All data were collected at baseline and at 2 and 6 months of follow-up. The data analysis followed the intention-to-treat principle. A generalized estimating equation was used to examine the effects of the intervention. Results The participants were mostly female (72/103, 69.9%), and their mean age was 33.6 (SD 5.2) years. The participants in the experimental group showed significantly higher levels of resilience (mean 67.96, SD 15.8 vs mean 58.27, SD 19.0; P<.001) and lower levels of depressive symptoms (mean 40.17, SD 9.9 vs mean 46.04, SD 10.9; P<.001) than those in the control group at 6 months of follow-up. The intervention showed statistically significant effects in improving resilience (β=6.082; P=.01) and decreasing depressive symptoms (β=−2.772; P=.04) relative to the control group. The QoL score in the experimental group was higher than that in the control group at 6 months of follow-up (mean 0.79, SD 0.2 vs mean 0.76, SD 0.3; P=.07); however, no statistically significant intervention effect was detected (β=.020; P=.38). Conclusions The mobile device–based resilience training program effectively enhanced resilience and alleviated depressive symptoms in parents of children with cancer. It is highly recommended that health care professionals incorporate this resilience training program when providing psychological care to parents of children with cancer. Trial Registration Clinical.Trials.gov NCT04038242; http://clinicaltrials.gov/ct2/show/NCT04038242

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