Acute Effects of Static Stretching on Bench Press Power and Velocity in Adolescent Male Athletes

The purpose of this study was to evaluate the effectiveness of repetitions to fatigue (RTF) for estimating one-repetition maximum (1-RM) bench press performance in male high school athletes. Members of high school athletic teams (N = 213, age = 16.3 ± 1.1 yrs, weight = 79.9 ± 16.7 kg) from four states were tested for 1-RM bench press and RTF after completing 4–6 weeks of resistance training. A new equation for use with male high school athletes was developed from a random sample of 180 participants; it appears to have excellent predictive potential (r = 0.96, SEE = 4.5 kg) and cross-validated well on a subsample (n = 33) from this population (r = 0.98, t = 0.64). Therefore, RTF can be used with acceptable accuracy to estimate maximal strength in the majority of adolescent male athletes who need to handle excessively heavy weights.

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Acute Effects of Competitive Exercise on Risk-Taking in a Sample of Adolescent Male Athletes

Journal of Applied Sport Psychology ◽

10.1080/10413200.2012.704621 ◽

2013 ◽

Vol 25 (2) ◽

pp. 175-179 ◽

Cited By ~ 9

Author(s):

Anne C. Black ◽

Edward Hochman ◽

Marc I. Rosen

Keyword(s):

Risk Taking ◽

Adolescent Male ◽

Acute Effects ◽

Male Athletes

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Relationships of Body Dimensions to Strength Performance in Novice Adolescent Male Powerlifters

Pediatric Exercise Science ◽

10.1123/pes.5.4.347 ◽

1993 ◽

Vol 5 (4) ◽

pp. 347-356 ◽

Cited By ~ 13

Author(s):

Jerry L. Mayhew ◽

Tom P. McCormick ◽

Fontaine C. Piper ◽

Amy L. Kurth ◽

Michael D. Arnold

Keyword(s):

Regression Analysis ◽

Body Size ◽

Body Mass ◽

Bench Press ◽

Adolescent Male ◽

Male Athletes ◽

Body Dimensions ◽

Strength Performance ◽

Structural Dimensions ◽

High School Males

The purpose of this study was to determine the degree to which structural dimensions are related to strength performance in novice adolescent powerlifters. Ninety-nine high school males were measured for 17 anthropometric dimensions and maximal performance in the bench press and deadlift. Body mass and limb circumferences had the highest relationships with lifting performance. Removing the effect of body mass dramatically reduced the relationships between structural dimensions and lift performances. Multiple regression analysis indicated that size and structural dimensions could account for 68.9% and 62.4% of the known variance in the bench press and deadlift, respectively. Body size was the major determinant of weightlifting ability in adolescent male athletes, with structural dimensions playing a lesser role in determining success.

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The Acute Effects of Androstenedione Supplementation in Healthy Young Males

Canadian Journal of Applied Physiology ◽

10.1139/h00-005 ◽

2000 ◽

Vol 25 (1) ◽

pp. 68-78 ◽

Cited By ~ 34

Author(s):

Craig S. Ballantyne ◽

Stuart M. Phillips ◽

Jay R. Macdonald ◽

Mark A. Tarnopolsky ◽

J. Duncan Macdougall

Keyword(s):

Luteinizing Hormone ◽

Resistance Exercise ◽

Elevated Plasma ◽

Acute Effects ◽

Double Blind ◽

Male Athletes ◽

Young Males ◽

Plasma Estradiol ◽

Key Words Testosterone ◽

Heavy Resistance Exercise

We examined the effects of androstenedione supplementation on the hormonal profile of 10 males and its interaction with resistance exercise. Baseline testosterone, luteinizing hormone, estradiol, and androstenedione concentrations were established by venous sampling at 3 hr intervals over 24 hr. Subjects ingested 200 mg of androstenedione daily for 2 days, with second and third day blood samples. Two weeks later, they ingested androstenedione or a placebo for 2 days, in a double-blind, cross-over design. On day 2, they performed heavy resistance exercise with blood sampled before, after, and 90 min post. The supplement elevated plasma androstenedione 2-3-fold and luteinizing hormone ∼70% but did not alter testosterone concentration. Exercise elevated testosterone, with no difference between conditions. Exercise in the supplemented condition significantly elevated plasma estradiol by ∼83% for 90 min. Androstenedione supplementation, thus, is unlikely to provide male athletes with any anabolic benefit and, with heavy resistance exercise, elevates estrogen. Key Words: testosterone, luteinizing hormone, estradiol, fluid shifts, resistance exercise

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Acute effects of different durations of static stretching on the eccentric strength and power of leg flexor muscles

Isokinetics and Exercise Science ◽

10.3233/ies-171187 ◽

2018 ◽

Vol 26 (1) ◽

pp. 43-52 ◽

Cited By ~ 1

Author(s):

Matúš Krčmár ◽

Zuzana Xaverová ◽

Michal Lehnert ◽

Bohumila Krčmárová ◽

Jaromír Šimonek ◽

...

Keyword(s):

Static Stretching ◽

Acute Effects ◽

Flexor Muscles

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Reliability, Validity, and Performance Characteristics of Elite Adolescent Athletes at Different Stages of Maturityin the 10 to 5 Repeated Jump Test

Pediatric Exercise Science ◽

10.1123/pes.2020-0270 ◽

2021 ◽

pp. 1-8

Author(s):

James Baker ◽

Barry Shillabeer ◽

Christopher Brandner ◽

Philip Graham-Smith ◽

Patrick Mills ◽

...

Keyword(s):

Correlation Coefficient ◽

Intraclass Correlation Coefficient ◽

Intraclass Correlation ◽

Performance Characteristics ◽

Height Velocity ◽

Adolescent Male ◽

Male Athletes ◽

Reliable Test ◽

Jump Test ◽

And Performance

Purpose: To examine the reliability, validity, and performance characteristics of the 10 to 5 repeated jump test (10–5 RJT) in adolescent male athletes. The 10–5 RJT has been shown to be a valid and reliable test of reactive strength index (RSI) in older adolescents (age 17–19 y), but less is known in younger adolescent athletes at different stages of maturity. Methods: Athletes (age 11–17 y) completed the 10–5 RJT on 2 days, 1 week apart, to examine the reliability (n = 41), validity (n = 18) of the test. Athletes were classified as pre, circa, or post peak height velocity (PHV) height velocity using maturity offset to examine the effect of maturation status on RSI, flight time (FT), ground contact time (GCT), and jump height (JH) (n = 68) using a cross-sectional design. Results: Paired samples t tests showed no significant differences (P ≥ .05), and Bland–Altman analysis showed no bias and close limits of agreement for RSI, JH, FT, and GCT between the contact mat and force plate. Interday reliability was rated excellent for RSI (intraclass correlation coefficient = .91) and good for GCT, FT, and JH (intraclass correlation coefficient = .81–.85). All variables had a coefficient of variation ≤ 10%. RSI increased across maturation groups, with significant differences between pre-PHV and post-PHV groups (P = .014, d = 1.00). Conclusion: The 10–5 RJT is a valid and reliable test for adolescent male athletes. Greater RSI with advancing maturity was primarily due to increased FT and JH, with GCT remaining similar.

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The Acute Effects of Different Forms of Suspension Push‐Ups on Oxygen Consumption, Salivary Testosterone and Cortisol and Isometric Strength

Journal of Human Kinetics ◽

10.1515/hukin-2017-0202 ◽

2018 ◽

Vol 64 (1) ◽

pp. 77-85 ◽

Cited By ~ 2

Author(s):

David Bellar ◽

Cory Etheredge ◽

Lawrence W. Judge

Keyword(s):

Oxygen Consumption ◽

Repeated Measures ◽

Bench Press ◽

Body Height ◽

Isometric Strength ◽

Exercise Session ◽

Acute Effects ◽

Hands And Feet ◽

The Impact ◽

Push Up

Abstract Suspension exercise systems are being used in strength and conditioning facilities, fitness centers, rehabilitation centers and home gyms. Though some evidence exists regarding the impact of training with these systems, more work is needed for a better understanding. The purpose of the present investigation was to examine the acute effects of an exercise session with 2 (hands only) and 4 straps (hands and feet) in the push-up exercise compared to a work-matched bench press exercise session. The participants for this repeated measures, cross-over investigation were 18 healthy college-aged males (age: 24.8 ± 3.5 yrs, body mass: 81.8 ± 7.8 kg, body height: 178.9 ± 4.5 cm). The conditions were 6 sets of 10 repetitions of suspension push-ups using two straps (DUAL) for the hands, fours straps (QUAD) for hands and feet and a traditional bench press exercise matched to the average resistance during the suspension push-up. The participants performed all repetitions at a controlled cadence. Expired gases, and heart rate were monitored continuously during the exercise session. Pre and post exercise saliva samples were collected to quantify changes in testosterone and cortisol. Upper body isometric strength tests ( UBIST) were performed (Post, 1 hr, 24 hr, 48 hr) to evaluate changes in force production during recovery. Data analysis via repeated measures ANOVA revealed a significant trend for increased oxygen consumption in the QUAD condition compared to the bench press (p = 0.019). Additionally, both suspension conditions resulted in a reduced respiratory exchange ratio as compared to the bench press (p < 0.05). A significant main effect was noted for time in all conditions regarding isometric strength (p < 0.001), but no differences between conditions were revealed. Testosterone and cortisol responses did not differ between conditions. Based upon these data, it appears that when matched for work, suspension exercise results in equivalent reductions in muscle force, but greater oxygen consumption compared to isotonic exercise.

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Muscular activity patterns of female and male athletes during the flat bench press

Biology of Sport ◽

10.5114/biolsport.2018.74193 ◽

2018 ◽

Vol 35 (2) ◽

pp. 175-179

Author(s):

Artur Gołaś ◽

Adam Maszczyk ◽

Przemysław Pietraszewski ◽

Michał Wilk ◽

Petr Stastny ◽

...

Keyword(s):

Bench Press ◽

Activity Patterns ◽

Muscular Activity ◽

Male Athletes

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The Acute Effects of Dynamic and Static Stretching on Tennis Serve Targeting Performance

Journal of Education and Training Studies ◽

10.11114/jets.v7i4.4058 ◽

2019 ◽

Vol 7 (4) ◽

pp. 123

Author(s):

Bulent Turna ◽

Asuman Sahan ◽

Bahar Yilmaz

Keyword(s):

Wilcoxon Test ◽

Static Stretching ◽

Acute Effects ◽

Warm Up ◽

Dynamic Stretching ◽

Paired Samples ◽

Tennis Serve ◽

Playing Time ◽

Homogeneous Data ◽

Stretching Exercises

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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