scholarly journals Acute and delayed effects of strength training in ball velocity and accuracy in young competition tennis players

PLoS ONE ◽  
2021 ◽  
Vol 16 (12) ◽  
pp. e0260825
Author(s):  
Manuel Terraza-Rebollo ◽  
Ernest Baiget
Keyword(s):  
Resistance Training ◽  
Bench Press ◽  
Training Methods ◽  
Tennis Players ◽  
Delayed Effects ◽  
Randomized Design ◽  
Ball Velocity ◽  
Maximal Speed ◽  
Training Protocol ◽  
Medicine Ball

This study aimed to investigate the acute and delayed effects of medicine ball throws and resistance training in ball velocity and accuracy of serve, forehand and backhand in young competition tennis players. A crossover-randomized design was used with 10 competition tennis players (6 girls and 4 boys between 14 and 18 years old). The subjects performed 6 stroke test sessions, 3 for each strength protocol. The velocity and accuracy of strokes were measured before (basal situation), 3 minutes, 24 and 48 hours after the protocol. Medicine ball throws protocol was performed by accomplishing 3 sets of 6 repetitions using a 2 kg ball, throwing it at maximal speed. Resistance training protocol was performed by accomplishing 3 sets of 6 repetitions at 75% one-repetition maximum, lifting the load at maximal speed of bench press, dead lift, one hand row and half squat. There were no significant (p > 0.05) differences in all strokes, regarding ball velocity and accuracy after each method and each recovery time, compared to the basal situation. These results suggest that medicine ball throws and resistance training methods have no acute and delayed detrimental effects on stroke velocity and accuracy in young competition tennis players.

Mechanical Load and Physiological Responses of Four Different Resistance Training Methods in Bench Press Exercise

2013 ◽  
Vol 27 (4) ◽  
pp. 1091-1100 ◽  
Author(s):  
Sebastian Buitrago ◽  
Nicolas Wirtz ◽  
Zengyuan Yue ◽  
Heinz Kleinöder ◽  
Joachim Mester
Keyword(s):  
Resistance Training ◽  
Bench Press ◽  
Mechanical Load ◽  
Physiological Responses ◽  
Training Methods

Specific warm-up enhances movement velocity during bench press and squat resistance training

2021 ◽  
Keyword(s):  
Resistance Training ◽  
Perceived Exertion ◽  
Bench Press ◽  
Peak Velocity ◽  
Random Order ◽  
Training Load ◽  
Training Methods ◽  
Ratings Of Perceived Exertion ◽  
Movement Velocity ◽  
Warm Up

Background and objective: The purpose of this study was to investigate the effect of specific warm-up on squat and bench press resistance training. Methods: Thirty-four resistance-trained males (23.53 ± 2.35 years) participated in the current study. Among these, 12 were evaluated in the squat and 22 in the bench press. After determining the maximal strength load (1RM), each participant performed a training set (3 × 6 repetitions) with 80%1RM (training load) after completing a specific warm-up and without warming up, in random order. The warm-up comprised 2 × 6 repetitions with 40% and 80% of the training load, respectively. Mean propulsive velocity, velocity loss, peak velocity, mechanical power, work, heart rate and ratings of perceived exertion were assessed. Results: The results showed that after the warm-up, the participants were able to perform the squat and bench press at a higher mean propulsive velocity in the first set (squat: 0.68 ± 0.05 vs. 0.64 ± 0.06 m·s−1, p = 0.009, ES = 0.91; bench press: 0.52 ± 0.06 vs. 0.47 ± 0.08 m·s−1, p = 0.02, ES = 0.56). The warm-up positively influenced the peak velocity (1.32 ± 0.12 vs. 1.20 ± 0.11 m·s−1, p = 0.001, ES = 1.23) and the time to reach peak velocity (593.75 ± 117.01 vs. 653.58 ± 156.53 ms, p = 0.009, ES = 0.91) during the squat set. Conclusion: The specific warm-up seems to enhance neuromuscular actions that enable a higher movement velocity during the first training repetitions and to allow greater peak velocities in less time.

scholarly journals Acute effects of dropsets among different resistance training methods in upper body performance

2012 ◽  
Vol 34 (1) ◽  
pp. 105-111 ◽  
Author(s):  
Claudio Melibeu Bentes ◽  
Roberto Simão ◽  
Travis Bunker ◽  
Matthew R. Rhea ◽  
Humberto Miranda ◽  
...  
Keyword(s):  
Resistance Training ◽  
Bench Press ◽  
Consent Form ◽  
Upper Body ◽  
Training Methods ◽  
Total Work ◽  
Acute Effects ◽  
Male Volunteers ◽  
Significant Difference ◽  
Exhaustion Method

AbstractThe aim of this study was to compare the influence of including dropset exercises in different orders, both inthe pre-exhaustion, as in the post-exhaustion method, and to analyze the performance of total work on the bench pressand chest flying exercise. Twenty-two male volunteers with a recreational experience in ST were evaluated in six visitsin non-consecutive days, at approximately the same time of the day. During the first visit, subjects signed an informedconsent form and underwent an anthropometric evaluation and testing of 10RM. The second visit involved a re-test of10RM. From third to sixth visits, the subjects were randomly grouped into the following experimental situations: 3rdVisit (V3 - Post-exhaustion): Bench Press (dropset) + Chest Flying (10RM); 4th visit (V4 - Post-exhaustion): BenchPress (10RM) + Chest Flying (dropset); 5th Visit (V5 - pre-exhaustion): Chest Flying (dropset) + Bench Press (10RM);6th Visit (V6 - pre-exhaustion): Chest Flying (10RM) + Bench Press (dropset). The protocol of dropset was performedwith 3 sets and no rest intervals 10RM + 80% 10RM + 60% 10RM. An interval between sets was adopted for 2minutes. The primary results showed a significant difference in Total Work for visits V3 and V6, which was included inthe dropset multiarticular exercises. These results suggest that the exercise order with the dropset method in the preexhaustionor post-exhaustion methods had an acute influence on Total Work.

scholarly journals Differences in Oxygen Uptake between Equivalent Resistance Training Protocols: Sets vs. Reps

2020 ◽  
Vol 9 (4) ◽  
pp. 91-96
Author(s):  
Christopher B. Scott ◽  
Maegan Chartier ◽  
Joshua Hodgkiss ◽  
Matthew Mallett ◽  
Mikaela Shields
Keyword(s):  
Resistance Training ◽  
Bench Press ◽  
Recovery Period ◽  
Anaerobic Exercise ◽  
Energy Costs ◽  
Equivalent Resistance ◽  
Post Exercise ◽  
Back Squat ◽  
Training Protocol ◽  
Training Protocols

We examined the energy costs of different resistance training protocols where exercise and recovery periods were equated: 48 total seconds of exercise and 210 seconds of between-set recovery. Two separate investigations were carried out at 65% of a 1 repetition maximum (1RM): back squat (7 men, 3 women) and bench press (9 men). Lifting cadence for concentric and eccentric phases was set at 1.5 sec each with 30 sec between-set recovery periods for the 8 sets, 2 reps protocol (sets) and a 3 min and 30 sec between-set recovery period for the 2 sets, 8 reps protocol (reps). The amount of oxygen consumed during lifting and between-set recovery periods was significantly greater for sets vs. reps protocol for both the back squat (+41%) and bench press (+27%) (p = 0.0001). Moreover, the total aerobic cost including the after-lifting excess post-exercise oxygen consumption (EPOC) was larger for the increased sets protocol for both the squat (+27%, p = 0.01) and bench press (+29%, p = 0.04). Total energy costs - aerobic plus anaerobic, exercise and recovery - were not different among sets or reps protocols. We conclude that a greater volume of oxygen is consumed with a lower repetition, increased number of sets resistance training protocol. We suggest that more recovery periods promote a greater potential for fat oxidation.

Effects of resistance training on electrocardiographic and blood parameters of police dogs

2017 ◽  
Vol 13 (4) ◽  
pp. 217-226 ◽  
Author(s):  
V.S. Moraes ◽  
J.K.I. Soares ◽  
J.F. Cabidelli ◽  
A.N.B. Fadini ◽  
P.A. Ribeiro ◽  
...  
Keyword(s):  
Resistance Training ◽  
Blood Parameters ◽  
Strenuous Exercise ◽  
Exercise Protocol ◽  
German Shepherd ◽  
Maximal Speed ◽  
Multiple Missions ◽  
Police Dogs ◽  
One Way Anova ◽  
Training Protocol

The aims of this study were to evaluate effects of a 6 week resistance training on electrocardiographic (ECG) and blood parameters of police dogs. Our hypothesis was that this training protocol improves fitness, contributing to the welfare of these animals. Nine dogs, 18.56±0.53 months old, were evaluated before (M1) and six weeks after (M2) a training protocol using treadmill. Their training program was performed 2 times/week, and included 20 min of treadmill activity on a speed compatible with 60-80% of HRmax on weeks 1 and 2, same exercise of weeks 1 and 2 with a 5% grade added between 7.5 and 12.5 min in weeks 3 and 4, and, finally, same exercise of weeks 3 and 4 with three short bursts of strenuous exercise, 60 min after the end of treadmill activity. On both moments, animals were examined before (T0) and after (T1) an incremental effort test, and at 30 (T2) and 120 min (T3) of recovery, measuring heart rate, respiratory rate and body temperature. Blood samples were taken to determine erythrogram, aspartate aminotransferase, creatine kinase, triglycerides, lactate and glucose. Electrocardiographic variables were analysed at T0 and T1. All variables were analysed by one-way ANOVA and Tukey tests, with P≤0.05. After training, there was an increase on the length of work on treadmill of 41.5% for the German Shepherd (P=0.0139) and 21.4% for the Belgian Malinois (P=0.0085) along with a increase of maximal speed of 34.0% for the German Shepherd (P=0.0084) and 15.9% for the Belgian Malinois (P=0.0241). It was observed in physiological, blood and ECG parameters differences between M1 and M2 (P<0.05). Other findings included a lower rest QTc value at T0 after training (P=0.0194). The chosen training led to a better fitness of the police dogs as all of them worked more intensively with a low cardiovascular requirement in M2. In conclusion, current exercise protocol in a treadmill improved dogs fitness, when we analysed ECG, physiological and blood parameters, making possible that animals may be used in more extended and multiple missions, contributing welfare of these animals.

Effects of Postactivation Potentiation on Tennis Serve Velocity and Accuracy

2020 ◽  
Vol 15 (3) ◽  
pp. 340-345 ◽  
Author(s):  
Manuel Terraza-Rebollo ◽  
Ernest Baiget
Keyword(s):  
Bench Press ◽  
Load Resistance ◽  
Maximum Speed ◽  
Postactivation Potentiation ◽  
Heavy Load ◽  
Tennis Players ◽  
Randomized Design ◽  
Potentiation Effect ◽  
Tennis Serve ◽  
Complex Training

Purpose: To examine the postactivation potentiation effect on serve velocity and accuracy in young competition tennis players using complex training, and comparing different upper and lower body heavy-load resistance exercises (HLRE). Methods: Fifteen competition tennis players (9 boys and 6 girls; age 15.6 [1.5] y) performed 1 control session and 3 experimental sessions using HLRE in a crossover randomized design: (1) bench press, (2) half squat, (3) bench press plus half squat, and (4) control trial. HLRE were performed by accomplishing 3 sets of 3 repetitions when bench press or half squat conditions were performed and 2 sets of 3 repetitions of each exercise when bench press plus half squat condition was performed at 80% 1-repetition maximum, lifting the load at maximum speed. To assess the serve velocity and accuracy, all participants performed 32 flat serves after the HLRE, divided into 4 sets of 8 serves (0, 5, 10, and 15 min postexercise), resting 20 seconds between serves, and 2 minutes and 40 seconds between sets. Results: There were no significant (P > .05) differences in ball velocity and accuracy following each recovery time and exercise, compared with the basal situation. Conclusions: These results suggest that complex training using HLRE is not a useful method for eliciting the postactivation potentiation effect in tennis serve and does not have any effect in serve accuracy in young competition tennis players.

The influence of execution speed on blood lactate concentration in strength training protocol in bench press exercise

2020 ◽  
Vol 19 (1) ◽  
pp. 32
Author(s):  
Gustavo Taques Marczynski ◽  
Luís Carlos Zattar Coelho ◽  
Leonardo Emmanuel De Medeiros Lima ◽  
Rodrigo Pereira Da Silva ◽  
Dilmar Pinto Guedes Jr ◽  
...  
Keyword(s):  
Strength Training ◽  
Blood Lactate ◽  
Bench Press ◽  
Lactate Concentration ◽  
Blood Lactate Concentration ◽  
The Third ◽  
Fast Speed ◽  
Work Volume ◽  
Execution Speed ◽  
Training Protocol

The aim of this study was to analyze the influence of two velocities of execution relative to blood lactate concentration in strength training exercise until the momentary concentric failure. Fifteen men (29.1 ± 5.9 years), trained, participated in the experiment. The volunteers performed three bench press sessions, with an interval of 48 hours between them. At the first session, individuals determined loads through the 10-12 RMs test. In the following two sessions, three series with 90 seconds of interval were performed, in the second session slow execution speed (cadence 3030) and later in the third session fast speed (cadence 1010). For statistical analysis, the Student-T test was used for an independent sample study and considered the value of probability (p) ≤ 0.05 statistically significant. By comparing the number of repetitions and time under tension of the two runs, all series compared to the first presented significant reductions (p < 0.05). The total work volume was higher with the fast speed (p < 0.05). The study revealed that rapid velocities (cadence 1010) present a higher concentration of blood lactate when compared to slow runs (cadence 3030). The blood lactate concentration, in maximum repetitions, is affected by the speed of execution.Keywords: resistance training, cadence, blood lactate.

Changes in bench press performance and throwing velocity after strength-oriented and ballistic resistance training programs

2020 ◽  
Vol 60 (11) ◽  
Author(s):  
Jesualdo Cuevas-Aburto ◽  
Danica Janicijevic ◽  
Alejandro Pérez-Castilla ◽  
Luis J. Chirosa-Ríos ◽  
Amador García-Ramos
Keyword(s):  
Resistance Training ◽  
Bench Press ◽  
Training Programs ◽  
Ballistic Resistance ◽  
Press Performance

Comparison of CrossFit Barbara and classic resistance trainings for the protection of strength performance during off-season in kickboxers

2020 ◽  
pp. 1-8
Author(s):  
Cebrail Gençoğlu ◽  
İlhan Şen
Keyword(s):  
Resistance Training ◽  
Body Mass ◽  
Body Fat ◽  
Bench Press ◽  
Body Fat Percentage ◽  
Fat Percentage ◽  
Strength Performance ◽  
Significant Difference ◽  
Before And After ◽  
Push Up

BACKGROUND: The inability of athletes to train or the decrease in the intensity and frequency of training may cause athletes to lose performance. Particularly in view of the current COVID-19 pandemic, maintaining strength outside the normal framework provides an advantage to athletes for the next competitions. OBJECTIVE: To compare the CrossFit Barbara which can be applied easily at home during the off-season or some situations such as the epidemic limitation to classic resistance training methods used to maintain the strength performance of national kickboxers. METHODS: Forty-three national kickboxers, CrossFit (CF, n= 22), and resistance training (RT, n= 21), participated in this study. While CF performed 20 pull-ups, 30 push-ups, 40 sit-ups, and 50 squat exercises, RT performed bench press, lat pull down, leg press, biceps curl, and triceps extension exercises twice per week for six weeks. Before and after the six weeks, the following variables were measured; body mass (BM) and body fat percentage (FP), VO2max, bench press (BP), squat (SQ), leg strength (LS), hand grip strength (HGS), pull-up, push-up and counter movement jump (CMJ). RESULTS: BP (p< 0.001, F= 41.125, ηp2= 0.501), SQ (p< 0.001, F= 26.604, ηp2= 0.394), LS (p< 0.001, F= 15.234, ηp2= 0.271), push-up (p< 0.001, F= 31.978, ηp2= 0.438) and pull-up (p< 0.001, F= 24.410, ηp2= 0.373) values changed significantly in group-time interaction between CF and RT groups, while there was no significant difference for the BM (p= 0.198, F= 1.715, ηp2= 0.040), Fat (p= 0.265, F= 1.279, ηp2= 0.030), HGS (p= 0.665, F= 0.190, ηp2= 0.005, CMJ (p= 0.054, F= 3.946, ηp2= 0.088) and VO2max (p=0.747, F= 0.106, ηp2= 0.003). Furthermore, according to the before and after study values, BP, SQ, LS, and CMJ decreased significantly (p< 0.05) while BM, FP, HGS, VO2max, pull-up and push-up variables did not in the CF (p> 0.05). In the RT, the pull-up and push-up variables decreased significantly (p< 0.05) while there was no significant difference for BP, SQ, LS, HGS, VO2max, body mass, body fat percentage and CMJ (p> 0.05). CONCLUSION: CF Barbara workout was more effective in maintaining strength endurance performances, and RT in maintaining maximum strength performances. According to the individual performance needs of athletes, reasonable training method can be used to prevent performance decrement in the strength domain.

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