Acute effects of differential learning on football kicking performance and in countermovement jump

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.

Download Full-text

Acute Effects of Vibration Foam Rolling Warm-Up on Jump and Flexibility Asymmetry, Agility and Frequency Speed of Kick Test Performance in Taekwondo Athletes

Symmetry ◽

10.3390/sym13091664 ◽

2021 ◽

Vol 13 (9) ◽

pp. 1664

Author(s):

An-Hsu Chen ◽

Chih-Hui Chiu ◽

Chin-Hsien Hsu ◽

I-Lin Wang ◽

Kuei-Ming Chou ◽

...

Keyword(s):

Test Performance ◽

Sports Performance ◽

Acute Effects ◽

Multiple Frequency ◽

Countermovement Jump ◽

Warm Up ◽

Foam Rolling

The effect of asymmetry on flexibility and jump in taekwondo athletes and the influence of vibration foam rolling on asymmetry and frequency speed of kick test has not been examined. This study examined the effects of three warm-up protocols on subsequent sports performance in elite male taekwondo athletes. Fifteen elite male taekwondo athletes (20.63 ± 1.18 years) completed three warm-up protocols in a randomized order: general warm-up [GW], GW with vibration foam rolling [GW + VR], and GW with double VR for the weaker leg [GW + double VR]), was delivered before the subsequent tests: flexibility, single-leg countermovement jump (CMJ), 505 agility, hexagon test, and multiple frequency speed of kick tests (FSKTs). Relative to GW, the GW + VR significantly improved the hexagon test (GW + VR = 11.60 ± 1.01 s; GW = 12.80 ± 1.58 s). In addition, the GW + VR and GW + double VR yielded greater kick numbers in FSKT 5 (GW + VR = 21.13 ± 1.96 reps; GW + double VR = 20.93 ± 1.67 reps; GW = 19.27 ± 1.62 reps) and a higher kick decrement index (GW + VR = 5.45 ± 2.57%; GW + double VR = 5.88 ± 3.22%; GW = 9.54 ± 5.00%). However, the GW + VR and GW + double VR did not significantly improve the flexibility and CMJ asymmetry performance. The GW + VR is more beneficial for warming up than the GW is among male collegiate taekwondo athletes.

Download Full-text

The Acute Effects of Cluster Set during Complex Training on Countermovement Jump

International Journal of Innovative Technology and Exploring Engineering - Special Issue ◽

10.35940/ijitee.b6538.129219 ◽

2019 ◽

Vol 9 (2) ◽

pp. 3481-3484

Keyword(s):

Resistance Training ◽

Significant Interaction ◽

Plyometric Training ◽

Acute Effects ◽

Countermovement Jump ◽

Cluster Set ◽

Ct Protocol ◽

Maximum Effort ◽

Complex Training

This study aims to determine the acute effects of complex training with a cluster set configuration on countermovement jump. A crossover counterbalance design was used in this study. Fourteen recreational male underwent three sessions of trainings, with a minimum of 72 hours between each session. In the complex training (CT) protocol, squats with 65% 1RM were used for resistance training while jump squats with 80% of maximum effort for plyometric. Subjects performed the resistance and plyometric training alternately, using either traditional (TRA) or cluster with two sets (CS2). In TRA, no rest was given between the repetitions until they completed the entire set. For CS2, the pairs of CT 30s rest were inserted between the repetitions. The results of the study showed no significant interaction between TRA and CS2 across the all parameters: CMJ height (p> 0.05), power (p>0.050, and velocity (p>0.05) respectively. This study shows that both TRA and CS2 provide better CMJ height, power and velocity during CT. In conclusion, both TRA and CS2 can be adopted in training to enhance power.

Download Full-text

The acute effects of a dynamic warm-up including hip mobility exercises on sprint, agility and vertical jump performance

European Journal of Human Movement ◽

10.21134/eurjhm.2020.45.6 ◽

2020 ◽

Vol 45 ◽

pp. 55-61

Author(s):

Onat Cetin ◽

Ozkan Isik

Keyword(s):

Body Weight ◽

Vertical Jump ◽

Collegiate Athletes ◽

Acute Effects ◽

Countermovement Jump ◽

Jump Performance ◽

Warm Up ◽

Paired Samples ◽

Jump Test ◽

Significant Difference

The purpose of this study was to examine the acute effects of a dynamic warm-up including hip mobility exercises on sprint, agility and vertical jump performance. Twenty well trained male collegiate athletes (age = 20 ± 1.1 years; height = 178.3 ± 8.8 m; body weight = 72 ± 5.6 kg) volunteered for the study. All subjects completed two individual testing sessions on two non-consecutive days. On the first trial day, after 15 minutes of a simple dynamic warm-up, 30-m sprint test, Illinois agility test and countermovement jump test were performed at the control condition. On the second trial day addition to dynamic warm-up, subjects performed 6 hip mobility (6 min) exercises before tests. A paired samples t-test revealed a significant difference (p = 0.013) on sprint performance when comparing simple dynamic warm-up with a dynamic warm-up including hip mobility exercises. But no significant difference was found for agility (p = 0.071) and jump performances (p = 0.823). It can, therefore, be concluded that has a significant effect on sprinting performance whereas it has no significant effect on agility and vertical jump performance.

Download Full-text

Acute Effects of a Loaded Warm-Up Protocol on Change of Direction Speed in Professional Badminton Players

Journal of Applied Biomechanics ◽

10.1123/jab.2014-0048 ◽

2014 ◽

Vol 30 (5) ◽

pp. 637-642 ◽

Cited By ~ 5

Author(s):

Sean J. Maloney ◽

Anthony N. Turner ◽

Stuart Miller

Keyword(s):

Body Mass ◽

Recovery Time ◽

Vertical Jump ◽

Acute Effects ◽

Countermovement Jump ◽

Jump Performance ◽

Warm Up ◽

Change Of Direction ◽

Before And After ◽

Weighted Vest

It has previously been shown that a loaded warm-up may improve power performances. We examined the acute effects of loaded dynamic warm-up on change of direction speed (CODS), which had not been previously investigated. Eight elite badminton players participated in three sessions during which they performed vertical countermovement jump and CODS tests before and after undertaking the dynamic warm-up. The three warm-up conditions involved wearing a weighted vest (a) equivalent to 5% body mass, (b) equivalent to 10% body mass, and (c) a control where a weighted vest was not worn. Vertical jump and CODS performances were then tested at 15 seconds and 2, 4, and 6 minutes post warm-up. Vertical jump and CODS significantly improved following all warm-up conditions (P< .05). Post warm-up vertical jump performance was not different between conditions (P= .430). Post warm-up CODS was significantly faster following the 5% (P= .02) and 10% (P< .001) loaded conditions compared with the control condition. In addition, peak CODS test performances, independent of recovery time, were faster than the control condition following the 10% loaded condition (P= .012). In conclusion, the current study demonstrates that a loaded warm-up augmented CODS, but not vertical jump performance, in elite badminton players.

Download Full-text