Types Of Warm-up Research Articles

Effects of different types of warm-ups on performance by young volleyball players

The study aimed to compare the impact of warm-up with dynamic stretching (DS), warm-up with foam roller (FR), and warm-up with a combination of FR and DS (CO) on the performance of movement indicators in tests conducted on young volleyball players (n = 8, age = 15.4 ± 0.5 years, height = 176.3 ± 8.6 cm, weight = 64.5 ± 10.9 kg) during the competition year 2021/2022. To assess the effects of warm-up methods (DS, FR, CO), performance in various movement tests was compared. The tests included the sit and reach test (SR), a 1 kg ball throw in a kneeling position (H1), squat jump (SJ), countermovement jump (CMJ), sit-up test (SU), E-Test (ET), and run to cones (RC). The One-way ANOVA analysis did not reveal significant differences in the effects of DS, FR, and CO warm-ups (p > .05) across all investigated indicators. The effect size coefficient (η2) indicated negligible differences (η2 < 0.01), except for the ET indicator, where a small effect size (η2 = 0.028, 95%CI: 0.04-0.31) favoured DS. These findings carry social importance as they contribute to enhancing the efficacy of warm-up routines, both in sports performance and health considerations.

The Influence of a Warm-Up on Vigilance in University Students.

The present study aimed to analyze the effects of conducting a warm-up (WC) or not (WWC) on students of the Science Degree in Physical Activity and Sport before starting a practical class. Thirty-two students of the Science Degree in Physical Activity and Sport (age: 22.38 ± 1.81 years; height: 176.09 ± 8.52 cm; weight: 22.38 ± 1.81 kg; body fat: 25.17 ± 3.20%) participated in a counterbalanced cross-sectional study in which three conditions were tested: (a)basal lineal, (b)WC, and (c)WWC. Participants recorded longer times (worse performance) in the Illinois dribbling test (basal lineal condition [20.17 ± 1.35], WWC [20.13 ± 1.37], and WC [19.32 ± 1.35]) and the Psychomotor Vigilance Task test (basal lineal condition [397.88 ± 75.98ms]; WWC [412.19 ± 91.39ms], and WC [368.53 ± 68.65ms]). The warm-up prior to physical activity classes had positive effects on vigilance linked to executive functioning, and physical performance. In this sense, more research on different types of warm-up may be in order to contrast them with each other, as well as to carry out attention measurements according to the content to be imparted after the warm-ups. The present study represents a big opportunity for all physical education teachers due to warm-up is a crucial aspect that occurs in all practical sessions, also linked to the attention processes and motivational factors of the students.

The FIFA 11 + : Why is adherence so challenging? Insights from a cross-sectional study of stakeholders in Australian amateur football (soccer)

Objectives To explore the usage and awareness of the FIFA 11 + (11 + ) across multiple stakeholders involved with amateur football. Methods Coaches, players, non-coaching staff and medical personnel in New South Wales (NSW), Australia, were invited to complete a cross-sectional online survey, which was disseminated using a targeted email to two Football NSW member organisations and a social media campaign. Categorical data (including age-groups and sex) are presented as counts and percentages and analysed using a Chi-square or Fisher's exact test. A significance level of 0.05 was used for all analyses. Results In total 328 players, 55 coaches, 37 non-coaching staff and 16 medical personnel completed the survey (n = 436). Awareness of the 11 + was lowest among non-coaching staff (16.2%) and players (32.6%) but higher among coaches (52.7%) and medical personnel (93.8%). Once aware of the 11 + , 75.8% of all respondents used the program although 89.5% of them did so with modifications. In addition, only 40.0% of players reported completing all three parts of the 11 + program. Veteran players were less likely to complete any type of warm-up compared with junior players (63.7% vs. 96.3%, respectively). Conclusions Although awareness of the 11 + varied amongst survey respondents, 3 out of 4 respondents who were aware of the 11 + adopted the program. However, respondents reported modifying the 11 + and not completing the program as intended, which suggests modification guidance is required to maintain the efficacy of the 11 + .

Effects of Led Lighting Training on Response Time in Greco-Roman Wrestlers

Abstract Introduction Response time is one of the determinants of performance effectiveness in wrestling competitions. Its high levels help wrestlers fight more effectively when performing appropriate technical and tactical actions. Different factors such as a proper warm-up, unexpected situations, muscle fatigue, asthenic reactions, competition prestige and previous injuries may exert an influence on perceptual abilities (including RT and MT) and affect fighting effectiveness. Getting to know determinants of response time may provide a lot of valuable practical information that can be used in wrestling-related training. The study sought to determine changes in response time in Greco-Roman wrestlers produced by LLT. Material and Methods Twenty-four Greco-Roman wrestlers (age = 18.6 1.8, years of experience = 6.0 1.6) took part in the study. The wrestlers were divided according to two weight classes (lightweight and heavyweight). Within LLT programme, they performed special motor tasks using Batak Pro (15 minutes in total). Between the tasks, response time (reaction time and movement time) was measured. Reaction time test (RT, version S1) of the Vienna Test System was used in the study. Results Response time changed in a variety of ways (different directions and intensity of changes). The changes were noted both in RT and MT. Contrary to LLT, a standard warm-up did not contribute to an improvement in RT. The greatest changes were observed after ten minutes of exercising. Intragroup differences in response time grew smaller in the course of the task performance. No differences in response time were noted between wrestlers representing different weight classes. Conclusions Physical exertion within LLT affects response time in Greco-Roman wrestlers regardless of their weight classes. The most favourable changes occur after 10 minutes of exercising that requires high attentional focus (exercises performed after a standard warm-up). The type of warm-up and the exercises used may constitute a factor improving performance effectiveness. It is recommended that in a pre-competition warm-up, more time should be devoted to exercises requiring high attentional focus.

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.

Impact of Physical Best Warm-Up Activities on Elementary Students’ Physical Activity Levels and Knowledge

Daily physical activity (PA) benefits children’s and adolescents’ overall health while reducing the likelihood of obesity. Elementary school physical education (PE) classes provide opportunities for children and adolescents not only to participate in PA but also to build the knowledge and skills needed to be physically active across their lifetime. Physical Best (PB) is one program physical educators might use to develop students’ physical literacy and skills. The purpose of this study was to determine the effect of PB program inclusion on elementary PE students’ PA levels and health-related fitness knowledge (HRFK). Three activity games were paired once with a PB fitness concept-based warm-up activity and once with a traditional warm-up activity for six lessons. PA levels of elementary school students (n = 75, 30 males, 45 females) were recorded with both movement tracking bracelets and heart monitors during these six PE lessons. Means were calculated for movements and time in and above target heart rate zone (TZ) by warm-up type (PB vs. traditional), sex, and grade level. An HRFK assessment given to students pre- and postintervention assessed changes in fitness knowledge. Repeated-measures analysis of variances were utilized in the comparison of sex and grade level differences in relation to movements, TZ minutes, and HRFK assessment scores. Overall, children had significantly more movements in the PB lessons compared with traditional lessons (p < .05), while there was no difference in TZ minutes. HRFK assessment scores increased from pre- to postintervention (p < .05). Children accrued more movements in PB warm-up lessons than in traditional warm-up lessons but exhibited no difference in PA intensity. Children also increased HRFK from pre- to post-PB experience.

Characterization of Warm-Up in Soccer: Report from Portuguese Elite Soccer Coaches

Background: Warm-up before competition and training is a strategy that is widely acknowledged to improve players’ physical condition and performance. However, the importance of warm-up is not well understood and so there is a research gap into this topic. Objective: This study aimed to characterize the warm-up of professional soccer players by differences and similarities between different coaches’ methodologies. Methods: A group of thirty-two Portuguese elite soccer coaches participated in this study An observational study design was conducted through a cross-sectional descriptive questionnaire with nineteen questions. During the questionnaire, coaches were asked to provide specific information about the warm-ups prescribed for soccer players, about their importance from a technical, physical and psychological point of view and the importance they attached to the warm-up / reheating of substitute players. The questionnaire was administered to the coaches at the end of a training session. Results: The results indicated that there is no consensus regarding the type of warm-up that should be prescribed. There are different opinions between elite coaches regarding the warm-up components that must be emphasized in order to prepare players for the game demands. Moreover, considering the tactical, technical, physical, and psychological dimensions, the coaches have different perspectives of the warm-up. Conclusion: This study allowed to conclude that there is no standard regarding the prescription of warm-up in professional soccer players, in the opinion of coaches. This is mainly due to the fact that there is a distinct appreciation in relation to the importance and influence of warm-up for performance.

Injury characteristics of Indonesian para-athletes prior to Tokyo Olympics 2020: a cross-sectional study

BACKGROUND: Sports for people with disabilities and injuries have been the subject of discourse in the professional literature in the fields of traumatology and sports medicine. OBJECTIVE: This research aims to elucidate the injury characteristics of athletes in the Indonesian national team. The subject of this study were nine athletes (male=5, female=4) with males around the age of 28±9.13 and females 28±5.66 years. METHOD: The method approach is descriptive with a cross-sectional study technique using a questionnaire about injury history, types of injury, injury factors, and injury management for Indonesian Para Athletics Athletes who have competed in the 2020 Tokyo Olympics. Data analysis is depicted in numbers and percentages and Fisher's exact test to determine the relationship between variables. RESULTS: The study results reported that Indonesian athletes suffered injuries of the lower limbs (70%), part of the body that is frequently injured was the thigh (28%) and the type of injury that was often experienced sprain/twist. CONCLUSION: The injury characteristics in the sprint (track) category form a pattern of injuries to the thigh, Achilles tendon, ankle, and knee. There appears to be no correlation between gender, training frequency, injury share, match number, and warm-up type. The implication is that injury management is necessary before and during competition by considering biomechanics, pathophysiology, and psychosocial problems. Injury prevention strategies by coaches and medical teams should lead to more significant injury reduction and optimize athletes' health, safety, and well-being.

Effects of Warm-Up on Sprint Swimming Performance, Rating of Perceived Exertion, and Blood Lactate Concentration: A Systematic Review.

(1) Background: warm-ups precede physical exertion and has been shown to have positive and negative effects on performance. Positive effects include elevating body temperature, heart rate, and VO2. Negative effects include increasing fatigue and blood lactate concentration. The most effective warm-up format is still unknown, particularly in competitive swimming. The purpose of this systematic review was to determine the most beneficial warm-up for maximal performance in sprint swimming events; (2) Methods: a structured search was carried out following the Preferred Reporting Items for Systematic review and Meta-Analyses (PRISMA) guidelines in the PubMed, SportDiscus, and Google Scholar databases until March 2021. Studies with double-blind and randomized designs in which different types of warm-up were compared to each other or an identical placebo condition (no warm-up) were considered. Fourteen published studies were included. The effects of warm-up on sprint swimming performance, rating of perceived exertion (RPE) and blood lactate concentration (La−) were investigated. (3) Results: in half of the studies, swimmers performed significantly better after a regular warm-up; however, the effect of warm-up on performance was small. Warm-ups had a medium to large effect on RPE and a small to medium effect on La−. (4) Conclusions: the findings of this review suggest that warm-ups do influence performance, although the magnitude is small. Future studies are needed in larger populations to clarify whether warm ups improve swim performance, to what extent, and the potential role of variables related to participant characteristics and swimming competitions.

Unilateral and Bilateral Post-Activation Performance Enhancement on Jump Performance and Agility.

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

Are Strength Indicators and Skin Temperature Affected by the Type of Warm-Up in Paralympic Powerlifting Athletes?

(1) Background: the present study aimed to evaluate the effect of different types of warm-ups on the strength and skin temperature of Paralympic powerlifting athletes. (2) Methods: the participants were 15 male Paralympic powerlifting athletes. The effects of three different types of warm-up (without warm-up (WW), traditional warm-up (TW), or stretching warm-up (SW)) were analyzed on static and dynamic strength tests as well as in the skin temperature, which was monitored by thermal imaging. (3) Results: no differences in the dynamic and static indicators of the force were shown in relation to the different types of warm-ups. No significant differences were found in relation to peak torque (p = 0.055, F = 4.560, η2p = 0.246 medium effect), and one-repetition maximum (p = 0.139, F = 3.191, η2p = 0.186, medium effect) between the different types of warm-ups. In the thermographic analysis, there was a significant difference only in the pectoral muscle clavicular portion between the TW (33.04 ± 0.71 °C) and the WW (32.51 ± 0.74 °C) (p = 0.038). The TW method also presented slightly higher values than the SW and WW in the pectoral muscles sternal portion and the deltoid anterior portion, but with p-value > 0.05. (4) Conclusions: the types of warm-ups studied do not seem to interfere with the performance of Paralympic Powerlifting athletes. However, the thermal images showed that traditional warm-up best meets the objectives expected for this preparation phase.

Thermographic Analysis of the Metacarpal and Metatarsal Areas in Jumping Sport Horses and Leisure Horses in Response to Warm-Up Duration.

Simple SummaryA warm-up prepares the body for effort by improving blood supply to muscles and increasing the flexibility of joints, ligaments, and tendons. Warm-up is considered as a necessary preliminary step of each training session. This study assessed the impact of different regimes of warm-up on the surface temperature of the distal parts of limbs in horses used for jumping and leisure riding. Six showjumping horses and six leisure horses were included in the study. The studied horses were warmed up by walking and trotting for various time periods. The rectal temperature and body surface temperature of the distal parts of the four limbs were measured before warm-up, just after it, and during recovery. The warm-up-induced increase in analysed temperatures was higher in jumping sport horses than in leisure horses.This study aimed to assess the impact of various types of warm-up on the metacarpal and metatarsal surface temperature in jumping sport horses in comparison to leisure horses, which work usually less intensively. Six clinically healthy sport geldings, contestants in showjumping competitions, and six geldings used for leisure riding were included in the study. The experiment was conducted for four consecutive days, during which the horses were warmed up by walking and trotting for various durations. Images were taken with a FLUKE Ti9 thermal imager to determine the resting, post-effort, and recovery temperature of the dorsal and plantar surface of the metacarpus and metatarsus of the four limbs. The obtained data were analysed with SmartView 4.1. software. The increase of measured rectal and surface temperatures was proportional to the warm-up duration. The surface temperature increase in the distal limb parts in jumping sport horses was greater than in horses used for leisure. The plantar surface was also warmer than the dorsal surface of the metacarpal/metatarsal areas, with a forelimb being warmer than a hind limb. Elevated temperatures after warm-up persist for 30 min in the recovery period, especially in jumping sport horses compared to leisure horses. Thus, the warming up effect is achieved earlier and lasts longer in heavily trained horses than in non-performance horses.

Self-Selected Versus Standardised Warm-Ups; Physiological Response on 500 m Sprint Kayak Performance.

This study investigated the effectiveness of a self-selected (SS) warm-up on 500 m sprint kayak performance (K500) compared to continuous (CON) and intermittent high intensity (INT)-type warm-ups. Twelve nationally ranked sprint kayakers (age 17.7 ± 2.3 years, mass 69.2 ± 10.8 kg) performed CON (15 min at the power at 2 m·mol−1), INT (10 min at 2 m·mol−1, followed by 5 × 10 s sprints at 200% power at VO2max with 50 s recovery at 55% power at VO2max), and SS (athlete’s normal competition warm-up) warm-ups in a randomised order. After a five-minute passive recovery, K500 performance was determined on a kayak ergometer. Heart rate and blood lactate (BLa) were recorded before and immediately after each warm-up and K500 performance. Ratings of perceived exertion (RPE) were recorded at the end of the warm-up and K500. BLa, heart rate, and RPE were generally higher after the INT than CON and SS warm-ups (p < 0.05). No differences in these parameters were found between the conditions for the time trial (p > 0.05). RPE and changes in BLa and heart rate after the K500 were comparable. There were no differences in K500 performance after the CON, SS, or INT warm-ups. Applied practitioners can, therefore, attain similar performance independent of warm-up type.

Does Warm-up Type Matter? A Comparison between Traditional and Functional Inertial Warm-up in Young Soccer Players

Functional inertial training, a popular high-intensity training mode, provides high neuromuscular activation, developing proprioception, postural control, power, and sprint time. Aim of the study was to assess the acute effects of two types of warm-up (WU), inertial warm-up (IWU) vs. traditional warm-up (TWU), on explosive and reactive strength, sprint, and Change of Directions (COD) in young soccer players. In a randomized cross-over design study, twelve soccer players (aged 13.3 ± 0.7) performed 16 min of IWU and 16 min of TWU. IWU and TWU were spaced two weeks apart. Pre and post intervention tests, aimed at assessing explosive and reactive strength, sprint, and COD ability included: Squat Jump test (SJ), Countermovement Jump test (CMJ), Drop Jump test (DJ), Seven Repetition Hopping test (7R-HOP), 40 m-sprint test (40 m), and Illinois Agility Test (IAT). RM-ANOVA, used to compare differences between IWU and TWU effects (the level of significance set at ρ ≤ 0.05), showed enhanced performance after the IWU compared to the TWU. In addition, the effects of the IWU on performance lasted longer after the IWU than after the TWU. For IAT, the enhanced effects of IWU on performance lasted up to ten minutes after the administration of the IWU. Our results suggest that IWU affects functional changes displaying earlier adaptation in explosive and reactive strength with longer lasting effects compared to TWU and it could be recommended in young soccer athletes as a WU procedure.

The Influence of Warm-Up on Body Temperature and Strength Performance in Brazilian National-Level Paralympic Powerlifting Athletes.

Background and Objectives: The effects of warm-up in athletic success have gained strong attention in recent studies. There is, however, a wide gap in awareness of the warm-up process to be followed, especially in Paralympic powerlifting (PP) athletes. This study aimed to analyze different types of warm-up on the physical performance of PP athletes. Materials and Methods: The sample consisted of 12 elite Brazilian PP male athletes (age, 24.14 ± 6.21 years; bodyweight, 81.67 ± 17.36 kg). The athletes performed maximum isometric force (MIF), rate of force development (RFD), and speed test (Vmax) in three different methods of warm-up. Tympanic temperature was used to estimate the central body temperature. Results: A significant difference was observed for MIF in the without warm-up (WW) condition in relation to the traditional warm-up (TW) and stretching warm-up (SW) (p = 0.005, η2p = 0.454, high effect). On the contrary, no significant differences were observed in RFD, fatigue index (FI) and time in the different types of warm up (p > 0.05). Furthermore, no significant differences were observed in relation to the maximum repetition (p = 0.121, η2p = 0.275, medium effect) or the maximum speed (p = 0.712, η2p = 0.033, low effect) between the different types of warm up. In relation to temperature, significant differences were found for the TW in relation to the “before” and “after” conditions. In addition, differences were found between WW in the “after” condition and SW. In addition, WW demonstrated a significant difference in relation to TW in the “10 min later” condition (F = 26.87, p = 0.05, η2p = 0.710, high effect). Conclusions: The different types of warm-up methods did not seem to provide significant differences in the force indicators in elite PP athletes.

The Effects of a Short Specific Versus a Long Traditional Warm-Up on Time-Trial Performance in Cross-Country Skiing Sprint.

To compare the effects of a short specific and a long traditional warm-up on time-trial performance in cross-country skiing sprint using the skating style, as well as related differences in pacing strategy and physiological responses. In total, 14 (8 men and 6 women) national-level Norwegian cross-country skiers (age 20.4 [3.1]y; VO2max 65.9 [5.7]mL/kg/min) performed 2 types of warm-up (short, 8 × 100m with gradual increase from 60% to 95% of maximal speed with a 1-min rest between sprints, and long, ∼35min at low intensity, including 5min at moderate and 3min at high intensity) in a randomized order with 1hour and 40minutes of rest between tests. Each warm-up was followed by a 1.3-km sprint time trial, with continuous measurements of speed and heart rate. No difference in total time for the time trial between the short and long warm-ups (199 [17] vs 200 [16]s; P = .952), or average speed and heart rate for the total course, or in the 6 terrain sections (all P < .41, η2 < .06) was found. There was an effect of order, with total time-trial time being shorter during test 2 than test 1 (197 [16] vs 202 [16]s; P = .004). No significant difference in blood lactate and rating of perceived exertion was found between the short versus long warm-ups or between test 1 and test 2 at any of the measurement points during the test day (P < .58, η2 > .01). This study indicates that a short specific warm-up could be as effective as a long traditional warm-up during a sprint time trial in cross-country skiing.

Effects of different types of warm-up on dynamic stability and isokinetic strength

Effects of different types of warm-up on dynamic stability and isokinetic strength

Effects of Active and Passive Warm-ups on Range of Motion, Strength, and Muscle Passive Properties in Ankle Plantarflexor Muscles.

Takeuchi, K, Takemura, M, Nakamura, M, Tsukuda, F, and Miyakawa, S. Effects of active and passive warm-ups on range of motion, strength, and muscle passive properties in ankle plantarflexor muscles. J Strength Cond Res 35(1): 141-146, 2021-The purpose of this study was to examine the effects of active and passive warm-ups on flexibility and strength of calf muscles. Fourteen healthy males (age: 23.1 ± 2.6 years, height: 172.7 ± 5.6 cm, and body mass: 64.5 ± 7.0 kg) performed 3 types of warm-ups respectively for 10 minutes in a random order: an active warm-up by pedaling a cycling ergometer, an active warm-up doing repeated isometric contractions, and a passive warm-up in a hot water bath. To assess flexibility, range of motion (ROM) of ankle dorsiflexion, passive torque of ankle plantarflexion, and muscle tendon junction (MTJ) displacement were measured and then muscle tendon unit (MTU) stiffness was calculated. After the flexibility assessment, peak torque during maximum voluntary isometric contraction was measured to assess the isometric strength. These data were compared before and after each warm-up. As a result, all 3 types of warm-ups increased ROM (p < 0.05) and passive torque at terminal ROM (p < 0.01), but there were no significant changes in MTU stiffness or MTJ displacement. The active warm-up by pedaling a cycling ergometer increased peak torque during isometric contraction (p < 0.05), whereas the other warm-ups did not show significant alterations. In conclusion, the active warm-up with aerobic exercise increased flexibility and strength of the calf muscles.

Skirtingo tipo pramankštos įtaka krepšininkų vertikalaus šuolio ir 20 m bėgimo rezultatams bei jų kaitai rungtynių metu

In basketball, during the game player must be able to continuously perform intermittent activities ranging from low- to high-intensity activity and/or recovery. High-intensity intermittent activities such as jumps (rebounds, blocks, shots), change of direction, dribbling, sprints, screens and low-intensity activities such as walking, deceleration are necessary in order to succeed during basketball games. In order to do a training session or play a basketball games the preparation of the body is necessary. We achieve this goal during the warm-up which is the main factor for achieving the optimal performance and to be ready for training or game related loads. The main aim of our study was to investigate the effect of different warm-ups on basketball player’s power indicators during simulated basketball games. Two different types of warm-up were analysed: anaerobic alactic and anaerobic alactic/lactic. Twenty high level basketball players were recruited for this study. Countermovement jump (CMJ) and 20-meter sprint were measured before the warm-up, after the warm-up and after each quarter of the simulated basketball games. It was found, that both anaerobic alactic and anaerobic alactic/ lactic warm-ups significantly increased CMJ, however the anaerobic alactic warm-up group which had muscle potentiation loads during the warm-up routine showed better results in CMJ compered to anaerobic alaktic/ lactic warm-up group (p < 0.05). Evaluation of the power reflecting tests results during the simulated basketball game showed that both CMJ and 20-meter sprint results were better in anaerobic alactic warm-up group. These findings suggests that anaerobic alactic warm-up with potentiating exercises is the most effective for basketball players. This type of warm-up increases the power reflecting tests results during the simulated games the most. Keywords: basketball, warm-up, match, power. DOI: http://dx.doi.org/10.15823/sm.2018.6

The effect of warm-ups with stretching on the isokinetic moments of collegiate men.

Performing warm-ups increases muscle temperature and blood flow, which contributes to improved exercise performance and reduced risk of injuries to muscles and tendons. Stretching increases the range of motion of the joints and is effective for the maintenance and enhancement of exercise performance and flexibility, as well as for injury prevention. However, stretching as a warm-up activity may temporarily decrease muscle strength, muscle power, and exercise performance. This study aimed to clarify the effect of stretching during warm-ups on muscle strength, muscle power, and muscle endurance in a nonathletic population. The subjects of this study consisted of 13 physically active male collegiate students with no medical conditions. A self-assessment questionnaire regarding how well the subjects felt about their physical abilities was administered to measure psychological readiness before and after the warm-up. Subjects performed a non–warm-up, warm-up, or warm-up regimen with stretching prior to the assessment of the isokinetic moments of knee joints. After the measurements, the respective variables were analyzed using nonparametric tests. First, no statistically significant intergroup differences were found in the flexor and extensor peak torques of the knee joints at 60°/sec, which were assessed to measure muscle strength. Second, no statistically significant intergroup differences were found in the flexor and extensor peak torques of the knee joints at 180°/sec, which were assessed to measure muscle power. Third, the total work of the knee joints at 240°/sec, intended to measure muscle endurance, was highest in the aerobic-stretch-warm-ups (ASW) group, but no statistically significant differences were found among the groups. Finally, the psychological readiness for physical activity according to the type of warm-up was significantly higher in ASW. Simple stretching during warm-ups appears to have no effect on variables of exercise physiology in nonathletes who participate in routine recreational sport activities. However, they seem to have a meaningful effect on exercise performance by affording psychological stability, preparation, and confidence in exercise performance.