Dynamic Warm-up Research Articles

Influence of Recovery Time After Warm-up on Vertical Jump Performance in Trained Prepubertal and Postpubertal Male Athletes.

Ferrari, A, Baquet, G, Blazevich, AJ, and Ratel, S. Influence of recovery time after warm-up on vertical jump performance in trained prepubertal and postpubertal male athletes. J Strength Cond Res 37(10): 1985-1992, 2023-The aim of this study was to examine the concurrent effects of maturity status and recovery delay after a standardized dynamic warm-up on vertical jump performance. Thirteen prepubertal boys (9.4 ± 1.1 years) and 12 postpubertal boys (16.6 ± 0.8 years) were tested on squat jump (SJ) and drop jump from 30 cm (DJ 30 ) before and after a standardized, 8-minute, dynamic warm-up, including low-intensity, nonspecific dynamic exercises progressing to maximal, specific exercises, over 6 separate occasions. In each session, subjects jumped at 0, 1.5, 3, 5, 7, or 10 minutes after warm-up in a randomized order. Measurements included SJ height, DJ 30 height, ground contact time (GCT), and reactive strength index (RSI) from DJ 30 . The results revealed no significant recovery time × maturity group interaction effects for SJ height ( p = 0.36), DJ 30 height ( p = 0.45), GCT ( p = 0.75), or RSI ( p = 0.09), meaning that maturity status did not have a significant effect on changes in vertical jump performance after the warm-up. However, there were significant time effects for SJ height, DJ 30 height, and RSI ( p < 0.001 for all), with DJ 30 height and RSI increasing significantly by 16.9% at 1.5 minutes ( p < 0.001) and SJ height increasing significantly by 12.0% until 3 minutes after the warm-up ( p < 0.001). To conclude, the standardized dynamic warm-up had beneficial effects on vertical jump performance within the first 3 minutes after completion of the intervention. However, vertical jump performance after the warm-up was not dependent on the children's maturity status.

The Effect of Different Warm-Up Protocols on the Motor and Technical Skills of Handball Players in Sports Education

Warm-up programs in sports education can provide positive developments in motor and technical skills. The objective of this study was to determine the acute effects of ballistic, dynamic, and static warm-up protocols on motor and technical skills in male handball players. Twelve male handball players (mean age: 19.50±3.97 years) from the second league in Turkey participated in this study voluntarily. Warm-up protocols were implemented for the participants at the same time on three different days. At the beginning of the study, the height and body masses of the handball players were measured. After each warm-up protocol, 9-m shot, over-the-block shot, vertical jump, T agility, 20-m sprint, flexibility, and flamingo balance tests were conducted on the participants. The normality level of the data was determined by the Shapiro-Wilk test using the SPSS statistical program. While Repeated Measures ANOVA and the Bonferroni test from post hoc analysis were applied to data with normal distribution, the Friedman test and the Wilcoxon signed-rank test with the Bonferroni correction were used for non-normally distributed data. According to our findings, there was a significant difference between the warm-up protocols in the T agility, flexibility, and over-the-block shooting tests (p &lt; 0.05), while no significant difference was found in the vertical jump, 20-m sprint, balance, or 9-m shooting tests (p &gt; 0.05). The ballistic warm-up protocol applied to male handball players in sports education provided positive improvements in flexibility and over-the-block shooting skills, while the dynamic warm-up protocol yielded positive improvements in agility and flexibility.

Application of Shear-Wave Elastography in the Evaluation of Hamstring Stiffness in Young Basketball Athletes.

Previous literature has postulated a relationship between greater hamstring stiffness and a higher risk of sustaining injury. Shear wave elastography (SWE) presents a relatively new means for non-invasive evaluation of soft tissue elasticity pre- and post- injury or intervention. 1. To establish baseline hamstring stiffness measures for young competitive athletes and (2) determine effect of targeted neuromuscular training (TNMT) on shear wave stiffness of the hamstring. Un-blinded, prospective, non-randomized, cohort study. Six-hundred forty-two lower extremities from 321 high school and collegiate basketball athletes (177 F: 139 M) were examined for hamstring stiffness prior to the start of their competitive basketball season. Teams were cluster assigned to either the control or intervention (TNMT) group. Subjects in the control group underwent regular season activities as directed, with no influence from the research team. For the TNMT group, the research team introduced a hamstring targeted dynamic warm-up program as an intervention focused on activating the hamstring musculature. Collegiate status was significant to hamstring stiffness for both sexes (p ≤ 0.02), but hamstring stiffness did not correlate to age or sex (r2 ≤ 0.08). Intervention was a significant factor to hamstring stiffness when the hip was positioned in extension (p ≤ 0.01), but not in deeper flexion (p = 0.12). This effect was sex-specific as TNMT influenced hamstring stiffness in females (p = 0.03), but not in males (p ≥ 0.13). Control athletes suffered three HAM injuries; TNMT athletes suffered 0 hamstring injuries. Higher SWE measurements correlated with increased risk of injury, male sex, and collegiate athletics. TNMT intervention can lessen muscle stiffness which may reduce relate to injury incidence. Intervention effectiveness may be sex specific. II.

Immediate Effects of Static Stretching Versus Dynamic Warm up Exercises on Vertical Jump Test in 12 to 16 Years School Students: A Comparative Study

The static stretching has been found to enhance flexibility and reduce muscle tension, and dynamic warm up exercises raises core body and deep muscle temperatures, stimulates the nervous system, decreases the inhibition of antagonist muscles, and possibly reduces the risk of injury. Children are often encouraged to participate in some type of warm-up before vigorous physical activity, Warm-up is one of the most common practices at the beginning of Physical Education (PE) classes in schools. The aim of the study was to compare the immediate effects of static stretching versus dynamic warm-up exercises on vertical jump performance in 12 – 16 years school students. The 100 Participant (Boys and Girls) were taken, aged between 12 years to 16 years in 2 groups as Group A static stretching (n = 50) and Group B dynamic warm up exercises (n = 50). The pre assessment was taken before intervention and post assessment was taken after intervention. The study revealed an improvement in vertical jump performance in both intra groups (group A and group B). However, the results of the intergroup study revealed that dynamic warm-up exercises (group B) are more effective than static stretching (group A) in improving vertical jump performance in school students.

A Comparison of Warm-Up Effects on Maximal Aerobic Exercise Performance in Children.

The aim of this study was to compare the warm-up effects of treadmill walking (TW) with a dynamic (DY) bodyweight warm-up on maximal aerobic exercise performance in children. Sixteen children (10.9 ± 1.5 vrs) were tested for peak oxygen uptake (VO2 peak) on 2 nonconsecutive days following different 6 min warm-up protocols. TW consisted of walking on a motor-driven treadmill at 2.2 mph and 0% grade whereas the DY warm-up consisted of 9 body weight movements including dynamic stretches, lunges, and jumps. Maximal heart rate was significantly higher following DY than TW (193.9 ± 6.2 vs. 191.6 ± 6.1 bpm, respectively; p = 0.008). VO2 peak (54.8 ± 9.6 vs. 51.8 ± 8.7 mL/kg/min; p = 0.09), maximal minute ventilation (68.9 ± 14.8 vs. 64.9 ± 9.4 L/min; p = 0.27), maximal respiratory exchange ratio (1.12 ± 0.1 vs. 1.11 ± 0.1; p = 0.85) and total exercise time (614.0 ± 77.1 vs. 605 ± 95.0 s; p = 0.55) did not differ significantly between DY and TM warm-ups, respectively. These findings indicate that the design of the warm-up protocol can influence the heart rate response to maximal aerobic exercise and has a tendency to influence VO2 peak. A DY warm-up could be a viable alternative to a TW warm-up prior to maximal exercise testing in children.

Effects of the FIFA 11+ and a modified warm-up programme on injury prevention and performance improvement among youth male football players.

The effects of the FIFA11+ programme (the 11+) on ankle and groin injuries and performance have remained questionable. The latter, particularly, has potentially reduced the implementation rate and applicability of the programme. This study aimed to evaluate the mid-to-long-term effects of the 11+ and a modified programme including football-specific exercises on injury prevention and performance improvement. Three teams of the Iranian Youth League (division two) volunteered to participate in this study and were randomly assigned to two intervention groups (F11+; n = 29, M11+; n = 31) and a control group (n = 30). The F11+ followed the FIFA 11+ programme, whereas the M11+ performed modified exercises three times weekly as a warm-up protocol before training and competition through a football season. The control group carried out its routine warm-ups, including joggings, basic football drills, and static stretches, while having no injury prevention approaches. Lower extremity injuries, as well as exposure time for each player, were recorded. The football-specific performance was assessed using the Illinois Agility and Slalom Dribbling tests. ANOVA, Fisher Freeman Halton, and chi-square tests were used to analyze the data. Injury incidences differed significantly between groups (p = 0.02, C = 0.40), with M11+ reporting the lowest incidence. Significant differences between the pre- and posttest as well as differences between the groups for development over time were revealed for the Illinois agility and dribbling speed (p≤0.01). Both performance tests demonstrated a large time effect, as the effect sizes for time in agility and dribbling speed were 0.74 (CI = [0.66; 0.79]) and 0.86 (CI = [0.79; 0.87]), respectively. The effect size for the interaction can be categorized as medium, with 0.38 (CI = [0.25; 0.49]) for agility and 0.52 (CI = [0.40; 0.61]) for dribbling speed. M11+ showed the largest improvement in both. Mid-to-long-term application of a structured dynamic warm-up that integrates injury prevention and performance approaches may lower injury incidences and improve youth subelite players' performance. Although additional studies with larger samples are needed to prove the results of the current study, the amateur clubs/teams could integrate such twofold dynamic warm up into their routine training plan and benefit its advantages on injury prevention and performance improvement.

Relationship Between Strength And Power In Elite Short Track Speed Skaters

PURPOSE: To examine the relationship between strength and power in elite short track speed skaters. METHODS: Ten males (mean ± SD; age 21.1 ± 1.9 y; height = 177.2 ± 5.3 cm; mass = 71.3 ± 4.8 kg) and five females (age 22.8 ± 1.3 y; height 169.1 ± 4.3 cm; mass = 60.4 ± 1.3 kg) elite short track speed skaters volunteered and consented to an IRB approved informed consent to participate. Anthropometric measurements were recorded followed by a dynamic warm-up. The athletes completed four assessments: isometric (ISOM) torque, isokinetic (ISOK) torque, vertical jump (VJ), and Wingate testing. An isokinetic dynamometer was used to assess ISOM and ISOK torque for both right and left knee extensors and flexors. For ISOK torque, participants completed one set of five repetitions at a velocity of 60°/s. ISOM assessment used a stationary 60-degree knee angle, where participants completed three repetitions for three seconds each. Peak torque for quadriceps (QUAD) and hamstrings (HAM) for both right leg (RL) and left leg (LL) were used for analysis. The VJ test was completed on an AMTI force plate, where peak power (PP) output was used for analysis. Lastly, participants conducted a Wingate anaerobic cycling test at a load of 9 g/kg of body mass, where PP output was used for analysis. SPSS 24 was used to analyze Pearson r correlations between strength and power variables. RESULTS: There was a moderately strong significant (p = 0.006) correlation (r = .669) between VJ PP and ISOK RL HAM PT. There was a moderately strong significant correlation between Wingate PP and ISOK LL QUAD PT (p = 0.004; r = .695) and ISOK RL HAM PT (p = 0.002; r = .721). There was a moderate significant correlation between Wingate PP and ISOK RL QUAD PT (p = 0.029; r = .562), ISOK LL HAM PT (p = 0.028; r = .565), and ISOM LL QUAD PT (p = 0.037; r = .542). CONCLUSIONS:Short track speed skaters train to focus on repeatable explosive movement during competition which corresponds to their lower extremity strength. During a race, short track speed skaters’ LL is in a more fixed position while the RL is isokinetically moving, which relates to our findings that the ISOM LL QUAD was correlated with PP and RL HAM and QUAD ISOK were correlated with PP. Practitioners may use this as a reference to gain insight on the benefits of training for power and strength to enhance performance.

Inter-limb Asymmetries, Power, And Internal Training Loads In NCAA Division I Female Soccer Athletes

Periodic testing and workload monitoring throughout a competitive season can help athletes and coaches periodize training to optimize performance. In particular, vertical jump testing to assess power output and inter-limb asymmetries can be used to monitor athlete-readiness. PURPOSE: To evaluate the relationship between internal training loads, power output, and inter-limb asymmetries throughout a competitive soccer season. METHODS: National Collegiate Athletic Association (NCAA) Division I female soccer players (N = 21) were evaluated at all practices and games using a team-based heart rate monitoring system to assess internal training load via Banister’s training impulse score (TRIMP). At the beginning of each week, athletes performed a dynamic warmup followed by maximal bilateral (CMJ) and single leg (SL) countermovement vertical jump tests using a hands-on-hips method assessed via a digital contact mat. The best of two trials were used for each jump test. An asymmetry index (ASY) was calculated by dividing dominant by non-dominant SL height. Linear mixed effects models were used to assess changes in TRIMP, CMJ, and ASY throughout the season. Repeated measures correlations were used to determine relationships between weekly changes in TRIMP, CMJ and ASY using an absolute ASY score. Significance was set at p < 0.05. Descriptive statistics are presented as mean ± standard deviation. RESULTS: Time main effects were observed for weekly changes in TRIMP (573 ± 150au; p < 0.001) and CMJ (43.1 ± 0.8 cm; p = 0.01) over the season. No changes in ASY were observed (2.0 ± 1.5%; p = 0.09). There was a significant weak correlation between CMJ and ASY (r = 0.17; p = 0.04), but no other relationships between TRIMP, CMJ, and ASY were observed (p > 0.05). CONCLUSIONS: Changes in internal workload and power output were apparent throughout the season. Although no significant changes in ASY were seen, an inverse correlation between ASY and power output was observed, which may impact on-field performance. Declines in peak power along with higher asymmetry rates have been associated with increased injury risk. Proper athlete management programs that incorporate systematic monitoring and periodic testing may help to mitigate these risks by affording the opportunity for early interventions designed to improve athlete readiness.

Effects of 5-Week of FIFA 11+ Warm-Up Program on Explosive Strength, Speed, and Perception of Physical Exertion in Elite Female Futsal Athletes.

Futsal is a sport that originates from soccer and is increasingly practiced all over the world. Since training and warm-up protocols should be sport-specific in order to reduce injuries and maximize performance, this study aimed to evaluate the effects of 5 weeks of the FIFA 11+ warm-up program on explosive strength, speed, and perception of physical exertion in elite female futsal athletes. Twenty-nine elite female futsal athletes participating in the Italian national championships were divided into two groups: the experimental group (EG) underwent 5 weeks of the FIFA 11+ warm-up program, and the control group (CG) underwent 5 weeks of a dynamic warm-up. We evaluated any effect on explosive strength (by Squat Jump test), speed (by Agility T-test), and perception of physical exertion (by Borg CR-10 scale). All measurements were carried out by a technician of the Italian Football Federation before (T0), at the middle (T1), and at the end (T2) of the protocol. The EG showed significant improvements on performances between T0 vs. T1 and T0 vs. T2 both in the Squat Jump test (p = 0.0057 and p = 0.0030, respectively) and in the Agility T-test (p = 0.0075 and p = 0.0122). No significant differences were found in the Squat Jump test performances in the CG, while significant improvements were detected in the Agility T-test performances (p = 0.0004 and p = 0.0053, T0 vs. T1 and T0 vs. T2, respectively). As for the Borg CR-10 scale, we found a significant difference between T0 and T2 in the EG (p = 0.017) and no differences in the CG. This study showed that 5 weeks of the FIFA 11+ warm-up program improves the jumping performance of female futsal athletes without adversely affecting speed. These findings can be useful for coaches and athletic trainers in order to consider FIFA 11+ warm-up program also in female futsal athletes.

A Meta-Analysis of Randomized Controlled Trials on the Effectiveness of Exercise Intervention in Preventing Sports Injuries

Athletes risk injury every day during practice sessions and actual games, with the majority of the affected population being young males. The Centers for Disease Control and Prevention 2011-2014 report on sport and recreation-related injuries in the United States has consistently shown the average annual estimate of the millions of dollars spent on sport and recreation injuries. These injuries translate to a significant financial implication for the athlete, the team, the health system, and the public health.We composed a review protocol. We enumerated our inclusion and exclusion criteria, injury definition, and search strategy. We searched PubMed and SPORTDiscus. Then we used Forrest plots for the meta-analysis of the relevant selected studies. We used various keywords in our search strategy. These included “injury,” “sports,” “exercise,” “prevention,” “techniques,” and every possible combination of them. Search results showed 2516 hits with our keywords, and we included 20 of those results.Twenty trials, including 19712 individuals with 2855 injuries, were analyzed. Eccentric Training relative risk (RR) of 0.54 (95% CI 0.395 to 0.739 with X2 of p < 0.05) showed that the risk of the injury was decreased by 54% in the intervention group compared to the control group. In the neuromuscular training group, a RR of 0.682 (95% CI 0.621 to 0.749 with X2 of p < 0.001) showed that the risk of the injury was decreased by 68.2% in its intervention group subgroup compared to its control group. Also, the “11” International Federation of Association Football (FIFA) program had a RR of 0.771, indicating that there was a 77.1% decrease in injury by this set of exercises (95% CI 0.728 to 0.816 with X2 of p < 0.05), and this “11” FIFA program also had the most preventative effects. Warm-up had a RR of 0.843 (95% CI 0.749 to 0.949 with X2 of p < 0.05) and showed small prevention. Strength Training RR of 0.97 (95% CI 0.57 to 1.63 with X2 of p > 0.05) had no preventive effect.Our analysis showed that different exercises have preventive roles in sports injuries. The warm-up FIFA, neuromuscular training, and eccentric training reduced the risk of injury in the intervention group compared to the control group by a high percentage. At the same time, neuromuscular warm-up and FIFA 11 dynamic warm-up also decreased the relative risk of injury in the intervention group. These effects varied among exercise type, injury type, and sport.

Effects of Dynamic Warm-up Programs Including Self-Myofascial Relexation on Soft Tissue Stiffness and Exercise Performance

PURPOSE: This study aimed to investigate the effect of dynamic warm-up (DW), including DW and self-myofascial release (SMFR), on soft tissue stiffness and exercise performance.METHODS: Eight adult men participated in this study. The procedure was conducted twice every 2 weeks. Soft tissue stiffness measurements and exercise performance were performed as a pre-post-test. DW only and DW with SMFR were performed as an exercise intervention for the two groups, respectively.RESULTS: In the group conducted solely by DW, the stiffness of the gastrocnemius and rectus femoris muscles increased (p&lt;.05), and in the DW group including SMFR, the stiffness of the rectus femoris muscle (p&lt;.01) and biceps femoris muscle increased (p&lt;.05). The Achilles and patellar tendon showed no significant changes in either group. A significant increase was observed in both the DW group and the DW group containing SMFR in the 30 m sprint (p&lt;.01). The vertical jump (VJ) showed no significant change in both groups.CONCLUSIONS: Therefore, DW, including DW with SMFR, increased muscle stiffness, specifically through a 30-m sprint. In a followup study, it is considered necessary to investigate the effect of the VJ through the development of a DW program that changes the stiffness of tendons.

Judo specific fitness test performance variation from morning to evening: specific warm-ups impacts performance and its diurnal amplitude in female judokas

BackgroundA number of specific tests are used to standardize competition performance. Specific Judo fitness test (SJFT) can be applied by considering the start of the competition qualifiers in the morning and the continuation of the final competitions in the evening. The improvement of test performances can be achieved with warm-up for elevating heart rate (HR) and muscle temperature such as raise, activate, mobilise, potentiate (RAMP) protocols.PurposeThe aim of this study is to evaluate the effects of different warm-up protocols on SJFT at different times of the day in female judokas.MethodsTen volunteer women participated in this study, who regularly participated in judo training for more than 5 years and actively competed in international competitions. Judokas completed SJFT, either after no warm-up, or RAMP protocols like specific warm-up (SWU), and dynamic warm-up for two times a day in the morning: 09:00–10:00 and in the evening: 16:00–17:00, with at least 2 days between test sessions. The following variables were recorded: throws performed during series A, B, and C; the total number of throws; HR immediately and 1 min after the test, and test index after different warm-ups.ResultsWhen analyzed evening compared to the morning without discriminating three warm-up protocols, evening results statistically significant number of total throws performed during series A, B, and C, the total number of throws; HR immediately and 1 min after the test, and test index than morning results (p < 0.01). Moreover, RAMP protocols interaction with time have demonstrated an impact on SJFT for index [F(2) = 4.15, p = 0.024, ηp2: 0.19] and changes after 1 min HR [F(1.370)= 7.16, p = 0.008, ηp2: 0.29]. HR after 1 min and test index results were statistically significant in favor of SWU (p < 0.05).ConclusionsIn conclusion, SJFT performance showed diurnal variation and judo performances of the judokas can be affected more positively in the evening hours especially after RAMP protocols.

The Acute Effects of Different Warm-Up Protocols on Some Performance Parameters in U11-16 Soccer Players

Summary Purpose: The purpose of the study is to examine the acute effects of different warm-up protocols on some physical performance parameters in the Under 11-16 (U11-16) category soccer players. Material and Methods: The participant group of the study consisted of seventy-two male soccer players who regularly train in the U11-16 category. Soccer players randomly and counterbalanced participated in the one of the warm-up protocols of FIFA 11+, HarmoKnee, Dynamic warm-up, or Mixed warm-up on non-consecutive days. After participants performed one of the protocols, their flexibility, vertical jump, 30m sprint, and agility performances were measured. Repeated measures in the ANOVA test were used to determine intra-group differences (U11-U12-U13-U14-U15-U16) and Bonferroni test was used to decide which protocol caused a significant difference. Results: In all underage categories, FIFA 11+, HarmoKnee, and dynamic warm-up caused a significant difference in flexibility, vertical jump, 30 m sprint, and agility compared to Mixed warm-up (p &lt; 0. 05). Conclusions: As a result of the study, it was shown that FIFA 11+, HarmoKnee, and dynamic warm-up protocols acutely caused a positive influence in flexibility, vertical jump, 30 m sprint, and agility in all underage categories. These three warm-up protocols may be used to prevent athletes from warm-up uniformity and monotony and support multidirectional development.

Neuromuscular Electric Stimulation as an Alternative to Dynamic Warm-Up for Anaerobic Power Activities

The aim of this study was to compare short duration Neuromuscular Electric Stimulation (NMES) to traditional dynamic warm-up to prepare muscles for activity. Thirty college age participants (20 male, 10 female) completed both a general warm-up, followed by either an NMES warm-up or a dynamic warm-up.

Dynamic vs. Static-stretching Warm-up Protocol: The Effect on Physical Performance

This study aimed to compare the effects of dynamic and static stretching warm-ups protocols on physical performance. Twenty healthy recreationally active male participants between 18-22 years of age were recruited in this study. Participants were randomized to 1 of 2 groups: dynamic stretching warm-up (DWU, n=10) and static stretching warm-up (SWU, n=10) groups. Before the intervention, Illinois agility, velocity, and vertical jump tests were conducted to measure participants' baseline physical performance. Afterward, the participants performed the dynamic or static warm-up protocol according to their groups after 10 minutes of jogging. Each warm-up exercise was done for 30 seconds. A 5-second rest was given after each movement. After completing 1 set of 5 movements, 3 sets in total, a 2-minute rest was given. Then 4-min resting were given and physical performance testing procedures were repeated. There was no significant difference between the DWU and SWU in the vertical jump (p=0.22), velocity (p=0.99), and agility (p=0.24) performances after the intervention. In conclusion, this study indicates no difference between SWU and DWU effects on physical performance.

Effect of Warm-up on Fitness Performance of Schoolchildren. A Systematic Review

Abstract Introduction. The impact of different types of warm-up protocol on children’s performance is clearly an unresolved issue that has not yet been satisfactorily investigated. Consequently, the purpose of this review was to analyze the current literature on the subject. Material and Methods. The first step was to perform a search in PROSPERO with the keyword warm up. After that, five electronic bibliographic databases were searched through until April 10th, 2021: Web of Science (all databases), Scopus, SportDiscus, PubMed, and Google Scholar. Results. Six studies involving a total of 138 participants were included in the final analyses. Regarding the physical qualities that were assessed, 4 of the studies assessed strength through the vertical jump, 3 assessed running speed, one assessed anaerobic endurance (30 seconds) with a cycle ergometer and another assessed flexibility using the Sit &amp; Reach. Conclusions. The practice of dynamic or specific warm-up before training appears to improve speed and strength performance compared to no warm-up in school-age children. However, the effects of warm-up on endurance and flexibility performance in school-age children need to be further investigated.

Day-to-day Variation of The Heart Rate, Heart Rate Variability, and Energy Expenditure During FIFA 11+ and Dynamic Warm-up Exercises.

There seems to be a scarcity in literature investigating day-to-day warm-up (WU) variations. We investigated day-to-day variation of psychophysiological responses during Fédération Internationale de Football Association (FIFA) 11+ and dynamic warm-up (DWU) exercises. Twenty-one male collegiate soccer players were randomly assigned to the FIFA 11+ (n = 10) or DWU group (n = 11). Each group performed the assigned WU protocol on three different occasions with a 48-h interval in between. The inter-day variation of the heart rate (HR), time distribution of HR zones, heart rate variability (HRV), estimated energy expenditure (EE), blood lactate (BL) concentration, and the Borg rating of perceived exertion (RPE) were recorded. A two-way repeated measures of analysis of variance was used to compare the differences in chosen variables [group (2) × day (3)]. The coefficient of variation was used to determine the dispersion of the variables over the sessions. The interclass correlation coefficient (ICC) with a two-way random model and a single measure (ICC2,1) was used to determine inter-day reliability. There were no significant differences in time spent at particular HR zones and EE in both groups. The FIFA 11+ exercises showed high reliability of exercise duration, average HR (HRaverage), minimal HR (HRmin), peak HR (HRpeak), and post-exercise RPE. In the DWU group, high reliability was found only in HRaverage, HRpeak, and post-exercise RPE. The FIFA 11+ exercises showed similar EE, exercise HR patterns, BL, and RPE compared to the DWU. The FIFA 11+ program is an intense WU protocol with a characteristically low variation of day-to-day exercise HR and RPE responses.

Improved performance in youth netballers using two different length netball specific warm-ups

Purpose Neuromuscular warm-up has been shown to reduce injury risk and improve performance; however, barriers to implementation are common. To improve uptake by coaches Netball New Zealand developed two warm-ups of differing complexity and duration. This multi-site trial investigated the association between two netball specific warm-ups and improvements in performance outcome in youth netball players. Methods Twelve teams from six schools performed either the NetballSmart Dynamic Warm-up (NSDW, n = 37); or Power warm-up (PWU, n = 40), three times a week for 12 weeks. Performance was measured using 505 change-of-direction (COD), isometric mid-thigh pull (IMTP), Y-balance, vertical jump (VJ) and horizontal jump (HJ) tests. Paired t-tests assessed mean differences pre and post the interventions. Generalised linear mixed effects models evaluated effects between the NSDW and PWU groups. Results There was no significant difference between the NSDW or PWU for any of the outcomes (all p &gt; 0.05). Significant improvements were found in Y-balance (NSDW: Right (R) = 6.4 cm, Left (L) = 7.5 cm, p = 0.001; PWU: R = 4.2 cm, p = 0.004, L = 4.2, p = 0.006) and IMTP (NSDW: 162N; p = 0.001 PWU: 151N, p = 0.001) for both warm-up groups, and the NSDW also enhanced 505 performance (-0.07 s, p = 0.024). VJ and HJ failed to improve for either warm-up. Conclusion Based on performance outcomes coaches should be free to choose the warm-up they feel best fits their team environment, reducing barriers to implementation. Additionally, they may benefit from adding further COD, horizontal and vertical jumping movements to either their warm-up or skills training sessions.

Effects of Dynamic Warm-Up on Anaerobic Performance: A Randomized, Counterbalanced, and Cross-Over Study

Effects of Dynamic Warm-Up on Anaerobic Performance: A Randomized, Counterbalanced, and Cross-Over Study

Effect of FIFA 11+, Dynamic and Regular Warm-up Protocols on Speed, Agility, and Lower Limb Explosive Power in Badminton Players: A Quasi-experimental Study

Introduction: FIFA 11+, has already shown a positive response to the various physical parameters and reduced injury rates in football players, similar studies were not performed on badminton players. With this background, the present study was conducted. Aim: To compare the effects of FIFA 11+, dynamic warm-up, and regular badminton warm-up on speed, agility, and lower limb explosive power. Materials and Methods: A quasi-experimental study was conducted in different badminton academies located in Faridabad, Haryana, India, from September 2017 to March 2019 with the implementation of the programme for four weeks with a sample size of 48 players (both male and female) aged between 14-18 years participated in the study. The participants were divided randomly into group A; following FIFA 11+ protocol (11+ is a multifaceted warm-up program with four componentssprinting, strength, plyometric and balance), group B followed dynamic warm-up and group C followed their regular warm-up. The players followed the protocols for four weeks (12 sessions with FIFA11+ for 15-20 minutes and dynamic warm-up of 15 minutes). A pre and postassessment was done for agility using a T-test, speed was assessed by a 10 m sprint, and Lower limb explosive power was assessed using the vertical jump test. The statistical tests used for analysis was the Post-Hoc Tukey test for between-group analysis and Analysis of Variance (ANOVA) paired t-test for within-group analysis using Statistical Package for Social Sciences (SPSS) version 21.0 software. Results: There was no statistical difference between the three groups when the Post-Hoc Tukey test was done. However, when within the group analysis was done using paired t-test there was statistically significant difference for agility in group A (p-value=0.030) and speed in group B (p-value=0.021). Conclusion: This study concludes that none of the three groups out performed the other for all the parameters.