PMS99 - ACUTE EFFECTS OF DYNAMIC STRETCHING AFTER WARM UP ON SPRINTING ABILITY AND AGILITY AMONG ADOLESCENT BASKETBALL PLAYERS

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

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The effects of cluster-set and traditional-set post activation potentiation protocols on vertical jump performance

10.31236/osf.io/daq6n ◽

2019 ◽

Author(s):

Antonio Dello Iacono ◽

Marco Beato ◽

Israel Halperin

Keyword(s):

Vertical Jump ◽

Muscular Fatigue ◽

Superior Performance ◽

Acute Effects ◽

Countermovement Jump ◽

Basketball Players ◽

Jump Performance ◽

Warm Up ◽

Cluster Set ◽

Squat Jumps

Purpose. To compare the acute effects of two post activation potentiation (PAP) protocols using traditional or cluster-set configurations on countermovement jump (CMJ) performance. Methods. Twenty-six male basketball players were evaluated on three occasions separated by 72 hours. On the first session, athletes performed barbell squat jumps with progressively heavier loads to determine their individual optimum power loads. On the second and third sessions, athletes completed two PAP protocols in a randomized, counterbalanced order: 3 sets of 6 repetitions of squat jumps using optimum power loads performed with either a traditional (no inter-repetition rest) or a cluster-set (20 s rest every 2 repetitions) configurations. After a comprehensive warm-up, CMJ height was measured using a force platform before, 30 s, 4 min, and 8 min after completing the PAP protocols. Results. While at post-30 s athletes jumped lower compared to baseline in both conditions, jump heights were 0.71 cm higher following the cluster-set compared to the traditional condition (95% CI: 0.37, 1.05 cm). While athletes jumped higher compared to baseline at post-4 and post-8 min in both conditioning, jump heights were higher following the cluster-set compared to the traditional condition in post-4 min by 1.33 cm (95% CI: 1.02, 1.65 cm) and in post-8 min by 1.64 cm (95% CI: 1.41, 1.88 cm). Conclusions. Both traditional and cluster-set configurations induced a PAP response in vertical jump performance using optimum power loaded squat jumps, but the cluster-set configuration led to superior performance likely due to the reduced accumulation of muscular fatigue.

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The Acute Effects of Foam Rolling and Dynamic Stretching on Athletic Performance: A Critically Appraised Topic

Journal of Sport Rehabilitation ◽

10.1123/jsr.2020-0059 ◽

2020 ◽

pp. 1-6

Author(s):

Bethany L. Anderson ◽

Rod A. Harter ◽

James L. Farnsworth

Keyword(s):

Athletic Performance ◽

Controlled Trials ◽

Static Stretching ◽

Acute Effects ◽

Warm Up ◽

Dynamic Stretching ◽

Foam Rolling ◽

Treatment Groups ◽

Randomized Controlled ◽

And Performance

Clinical Scenario: Dynamic stretching and foam rolling are commonly used by athletes to reduce injury and enhance recovery, thereby improving athletic performance. In contrast to dynamic stretching, little research has been conducted on the acute effects of foam rolling as part of the preexercise warm-up routine. Previously, when researchers implemented foam rolling with static stretching as a warm-up, some found that foam rolling slightly improved flexibility and performance outcomes. More recent research has shown that dynamic stretching is favorable to static stretching when used as a warm-up strategy. Therefore, adding foam rolling to dynamic stretching is hypothesized to create more significant improvements in flexibility and performance compared with adding foam rolling to static stretching. Focused Clinical Question: In active individuals, does foam rolling in addition to dynamic stretching lead to enhanced performance compared with dynamic stretching alone? Summary of Key Findings: Four randomized controlled trials were included. Two studies concluded that the addition of foam rolling to dynamic stretching increased vertical jump height more than dynamic stretching alone, while 2 studies found no difference between these treatment groups. Two studies concluded that the addition of foam rolling increased agility performance compared with dynamic stretching alone, while one study found no difference between treatment groups and one study did not measure agility. All 4 studies reviewed concluded that foam rolling did not improve flexibility more than dynamic stretching alone. Clinical Bottom Line: Foam rolling in conjunction with dynamic stretching may further improve an athlete’s agility and power output; however, little improvement has been observed with foam rolling in regard to athlete flexibility when compared with completing dynamic stretching programs alone. Strength of Recommendation: Inconsistent findings from 4 randomized controlled trials suggest there is Grade C evidence to support the inclusion of foam rolling in a dynamic warm-up.

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Acute Effects of a Warm-Up Including Active, Passive, and Dynamic Stretching on Vertical Jump Performance

The Journal of Strength and Conditioning Research ◽

10.1519/jsc.0b013e31823f2b36 ◽

2012 ◽

Vol 26 (9) ◽

pp. 2447-2452 ◽

Cited By ~ 19

Author(s):

Felipe L.P. Carvalho ◽

Mauro C.G.A. Carvalho ◽

Roberto Simão ◽

Thiago M. Gomes ◽

Pablo B. Costa ◽

...

Keyword(s):

Vertical Jump ◽

Acute Effects ◽

Jump Performance ◽

Warm Up ◽

Dynamic Stretching

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Acute Effects of Foam Rolling, Static Stretching, and Dynamic Stretching During Warm-ups on Muscular Flexibility and Strength in Young Adults

Journal of Sport Rehabilitation ◽

10.1123/jsr.2016-0102 ◽

2017 ◽

Vol 26 (6) ◽

pp. 469-477 ◽

Cited By ~ 36

Author(s):

Hsuan Su ◽

Nai-Jen Chang ◽

Wen-Lan Wu ◽

Lan-Yuen Guo ◽

I-Hua Chu

Keyword(s):

Young Adults ◽

Muscle Strength ◽

Knee Flexion ◽

Peak Torque ◽

Knee Extension ◽

Static Stretching ◽

Acute Effects ◽

Warm Up ◽

Dynamic Stretching ◽

Foam Rolling

Context:Foam rolling has been proposed to improve muscle function, performance, and joint range of motion (ROM). However, whether a foam rolling protocol can be adopted as a warm-up to improve flexibility and muscle strength is unclear.Objectives:To examine and compare the acute effects of foam rolling, static stretching, and dynamic stretching used as part of a warm-up on flexibility and muscle strength of knee flexion and extension.Design:Crossover study.Setting:University research laboratory.Participants:15 male and 15 female college students (age 21.43 ± 1.48 y, weight 65.13 ± 12.29 kg, height 166.90 ± 6.99 cm).Main Outcome Measures:Isokinetic peak torque was measured during knee extension and flexion at an angular velocity of 60°/second. Flexibility of the quadriceps was assessed by the modified Thomas test, while flexibility of the hamstrings was assessed using the sit-and-reach test. The 3 interventions were performed by all participants in random order on 3 days separated by 48–72 hours.Results:The flexibility test scores improved significantly more after foam rolling as compared with static and dynamic stretching. With regard to muscle strength, only knee extension peak torque (pre vs. postintervention) improved significantly after the dynamic stretching and foam rolling, but not after static stretching. Knee flexion peak torque remained unchanged.Conclusions:Foam rolling is more effective than static and dynamic stretching in acutely increasing flexibility of the quadriceps and hamstrings without hampering muscle strength, and may be recommended as part of a warm-up in healthy young adults.

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