Acute Effects of Warm-up Stretch Protocols on Balance, Vertical Jump Height, and Range of Motion in Dancers

Abstract Background: Ankle orthotics decreases the maximal vertical jump height. It is essential to maximize jump height and minimize ground contact time during athletic performance. However, the effect of ankle orthotics on athletic performance has not been reported. We aimed to investigate the effect of ankle orthotics on squat jump (SJ), countermovement jump (CMJ), and repetitive rebound jump (RJ) performance and the relationship between jump performance and restriction in sagittal ankle range of motion. Methods: Twenty healthy volunteers performed SJ, CMJ, repetitive RJ under no-orthosis and two orthotic conditions (orthosis 1 and orthosis 2). During SJ and CMJ, we measured the vertical ground reaction force and calculated the following parameters: jump height, peak vertical ground reaction force, rate of force development, net vertical impulse, and peak power. During repetitive RJ, the jump height, contact time, and RJ index were measured. A two-dimensional motion analysis was used to quantify the ankle range of motion in the sagittal plane during SJ, CMJ, and repetitive RJ. Results: Multivariate analysis of variance and the post hoc test showed a significant decrease in the vertical jump height (p = 0.003), peak power (p = 0.007), and maximum plantarflexion and dorsiflexion angles (p <0.001) during SJ using orthosis 2 compared to those using the no-orthosis condition. Additionally, orthosis 2 significantly decreased the jump height at the end of repetitive RJ (p = 0.046), during which a significant negative correlation was found between jump height and maximum dorsiflexion angle (r = 0.485, p = 0.030). Conclusions: An ankle orthosis-induced restriction of dorsiflexion is associated with a reduction in jump height during static jump and repetitive RJ performance.

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The acute effects of dynamic and ballistic stretching on vertical jump height, force, and power.

10.18297/etd/673 ◽

2006 ◽

Author(s):

Jason Jaggers

Keyword(s):

Vertical Jump ◽

Jump Height ◽

Acute Effects ◽

Vertical Jump Height

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The Comparative Effects of Ankle Bracing on Functional Performance

Journal of Sport Rehabilitation ◽

10.1123/jsr.2016-0136 ◽

2018 ◽

Vol 27 (5) ◽

pp. 491-502

Author(s):

Thomas M. Newman ◽

Giampietro L. Vairo ◽

William E. Buckley

Keyword(s):

Range Of Motion ◽

Performance Measures ◽

Clinical Decision Making ◽

Functional Performance ◽

Vertical Jump ◽

Ankle Sprains ◽

Jump Height ◽

Physically Active ◽

Vertical Jump Height ◽

The Impact

Ankle sprains represent a common musculoskeletal injury that clinicians are tasked with preventing and treating. Because of the prevalence of this injury, ankle braces have been designed to prophylactically protect the joint and reduce the incidence of repetitive sprains. Although an abundance of literature exists focusing on the efficacy of braces in preventing ankle sprains in young, healthy, and physically active populations, there is a scarcity of evidence specific to the impact of these apparatuses on functional performance; therefore, the purpose of this critically appraised topic (CAT) is to investigate the effects of ankle braces on functional performance measures in such individuals. The outcomes of this CAT will assist sport rehabilitation specialists with informed clinical decision making in managing young, healthy, and physically active populations using ankle braces. Do ankle braces hinder functional performance measures when compared with an unbraced condition in a young, healthy, and physically active population? A minimum of level II evidence research studies were surveyed for this CAT. For this CAT, 1 randomized controlled trial and 3 prospective cohort studies were selected. One study found a statistically significant main effect of increased agility run times while participants wore ankle braces. Another study demonstrated a statistically significant decrease in vertical jump height and ankle range of motion while wearing braces. No other statistically significant findings were reported among studies comparing unbraced with braced conditions. Current data indicate that young, healthy, and physically active individuals may experience varied performance effects when executing specific functional performance tasks while wearing ankle braces. In general, bracing does not appear to significantly impair performance on most functional tasks; however, decrements were noted to increases in agility run time and decreases in vertical jump height. Subsequent analysis indicated that a brace may result in decreased ankle plantarflexion, dorsiflexion, eversion, and inversion range of motion, which may underpin noted performance deficits.

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The Acute Effects of Dynamic and Ballistic Stretching on Vertical Jump Height, Force, and Power

The Journal of Strength and Conditioning Research ◽

10.1519/jsc.0b013e3181854a3d ◽

2008 ◽

Vol 22 (6) ◽

pp. 1844-1849 ◽

Cited By ~ 49

Author(s):

Jason R Jaggers ◽

Ann M Swank ◽

Karen L Frost ◽

Chong D Lee

Keyword(s):

Vertical Jump ◽

Jump Height ◽

Acute Effects ◽

Vertical Jump Height

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EFFECTS OF DIFFERENT HALF-TIME RE-WARM UP ON VERTICAL JUMP DURING SIMULATED BASKETBALL GAME

Baltic Journal of Sport and Health Sciences ◽

10.33607/bjshs.v2i109.195 ◽

2018 ◽

Vol 2 (109) ◽

pp. 35-40

Author(s):

Rėjus Pociūnas ◽

Vytautas Pliauga ◽

Inga Lukonaitienė ◽

Dominykas Bartusevičius ◽

Tomas Urbonavičius ◽

...

Keyword(s):

Vertical Jump ◽

Jump Height ◽

College Level ◽

Half Time ◽

Warm Up ◽

Vertical Jump Height ◽

Basketball Game ◽

Counter Movement Jump ◽

Different Types ◽

Before And After

Background. This study investigated the acute effects of different half–time re–warm ups on vertical jump height during simulated basketball games. Methods. Ten college level males (age (mean ± standard deviation (SD)), 22.0 ± 5.0 years; weight, 86.0 ± 5.5 kg; height, 193 ± 1 cm.) were divided into two teams, who played three simulated basketball games with three different type half-time re-warm ups: aerobic; aerobic + post-activation potentiation exercises and aerobic + post-activation potentiation + stabilization exercises. Counter-movement jump was measured before and during the simulated basketball game at seven time points: before and after warm up, after the 1 st, the 2 nd quarters, after re-warm up and after the 3 rd and the 4 th quarters. Simulated basketball games were separated at least by 72 hours. Results. The non-significant decrease in Counter-movement jump height during simulated basketball games was observed after executing all three different types of half-time re-warm ups. However, Counter-movement jump significantly (p < .05) decreased during simulated basketball game only in aerobic type half-time re-warm up game. Conclusion. During simulated basketball game, the least decrease in Counter-movement jump height was observed after aerobic type re-warm up with post-activation potentiation exercises performed at half-time.

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Comparison of the effects of static stretching on range of motion and jump height between quadriceps, hamstrings and triceps surae in collegiate basketball players

BMJ Open Sport & Exercise Medicine ◽

10.1136/bmjsem-2019-000631 ◽

2019 ◽

Vol 5 (1) ◽

pp. e000631 ◽

Cited By ~ 1

Author(s):

Kosuke Takeuchi ◽

Fumiko Tsukuda

Keyword(s):

Range Of Motion ◽

Vertical Jump ◽

Random Order ◽

Triceps Surae ◽

Jump Height ◽

Static Stretching ◽

Basketball Players ◽

Jump Performance ◽

Vertical Jump Height ◽

Collegiate Basketball

ObjectivesThe purpose of the present study was to compare the effects of static stretching (SS) on the range of motion and vertical jump height between the quadriceps, hamstrings and triceps surae in collegiate basketball players.MethodsFourteen male collegiate basketball players (20.2±0.7 years, 179.0±5.0 cm, 71.9±8.3 kg) underwent 5 min of SS for the quadriceps, hamstrings and triceps surae, in random order. Before and after each stretch, the range of motion (ROM) and vertical jump height were measured.ResultsROM of the quadriceps, hamstrings and triceps surae were increased without any difference of relative change in the range. The vertical jump height showed no change after SS of the quadriceps and hamstrings, while it decreased after SS of the triceps surae (p<0.05).ConclusionThese results suggested that SS for the triceps surae may have a large impact on jump performance.

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Physical and performance characteristics related to starter status, position, and division in Japanese collegiate American-football players

Isokinetics and Exercise Science ◽

10.3233/ies-200222 ◽

2021 ◽

pp. 1-8

Author(s):

Junta Iguchi ◽

Minoru Matsunami ◽

Tatsuya Hojo ◽

Yoshihiko Fujisawa ◽

Kenji Kuzuhara ◽

...

Keyword(s):

Performance Test ◽

Vertical Jump ◽

American Football ◽

Football Players ◽

Jump Height ◽

Test Results ◽

Repetition Maximum ◽

Vertical Jump Height ◽

Division 1 ◽

And Performance

BACKGROUND: Few studies have investigated the variations in body composition and performance in Japanese collegiate American-football players. OBJECTIVE: To clarify what characterizes competitors at the highest levels – in the top division or on the starting lineup – we compared players’ body compositions and performance test results. METHODS: This study included 172 players. Each player’s body composition and performance (one-repetition maximum bench press, one-repetition maximum back squat, and vertical jump height) were measured; power was estimated from vertical jump height and body weight. Players were compared according to status (starter vs. non-starter), position (skill vs. linemen), and division (1 vs. 2). Regression analysis was performed to determine characteristics for being a starter. RESULTS: Players in higher divisions and who were starters were stronger and had more power, greater body size, and better performance test results. Players in skill positions were relatively stronger than those in linemen positions. Vertical jump height was a significant predictor of being a starter in Division 1. CONCLUSION: Power and vertical jump may be a deciding factor for playing as a starter or in a higher division.

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