Schick, EE, Coburn, JW, Brown, LE, Judelson, DA, Khamoui, AV, Tran, TT, and Uribe, BP. A comparison of muscle activation between a Smith machine free weight bench press. J Strength Cond Res 24(3): 779-784, 2010-The press exercise exists in multiple forms including the It is not clear though how each mode differs its effect on activation. The purpose this study was to compare anterior deltoid, medial pectoralis major during at lower (70% 1 repetition maximum [1RM]) higher (90% 1RM)...

There has been much investigation into the use of music as an ergogenic aid to facilitate physical performance. However, previous studies have primarily focused on predetermined and aerobic exercise. The purpose this study was investigate effects self-selected (SSM) vs. those no (NM) mood performance athletes performing bench press squat jump. Twenty resistance trained collegiate men completed 2 experimental conditions, one while listening SSM other with NM. subjects reported their profile...

The purpose of this study was to determine whether any relationships were present between lower-body muscle structure and strength power qualities. Fifteen elite male surfing athletes performed a battery tests, including countermovement jump (CMJ), squat (SJ), isometric midthigh pull (IMTP), had their assessed with ultrasonography. In addition, muscle-tendon complex (MTC) stiffness dynamic deficit (DSD) ratio calculated from the CMJ IMTP. Significant large very observed vastus lateralis (VL)...

Watkins, CM, Barillas, SR, Wong, MA, Archer, DC, Dobbs, IJ, Lockie, RG, Coburn, JW, Tran, TT, and Brown, LE. Determination of vertical jump as a measure neuromuscular readiness fatigue. J Strength Cond Res 31(12): 3305-3310, 2017-Coaches closely monitor training loads periodize sessions throughout the season to create optimal adaptations at proper time. However, only monitoring ignores innate physiological stress each athlete feels individually. Vertical (VJ) is widely used lower-body power,...

To determine whether a previously validated performance-testing protocol for competitive surfers is able to differentiate between Australian elite junior selected (S) the national team and those not (NS).Thirty-two male were divided into 2 groups (S=16, NS=16). Their age, height, body mass, sum of 7 skinfolds, lean-body-mass ratio (mean±SD) 16.17±1.26 y, 173.40±5.30 cm, 62.35±7.40 kg, 41.74±10.82 mm, 1.54±0.35 S athletes 16.13±1.02 170.56±6.6 61.46±10.10 49.25±13.04 1.31±0.30 NS athletes....

High-force activities have demonstrated postactivation potentiation (PAP) and may enhance performance in athletes; however, the efficacy of high-force to generate PAP recreationally trained men remains unclear. The purpose this study was investigate effect back squat volume on vertical jump (VJ) height, ground reaction force (GRF), impulse (IMP), takeoff velocity (TOV) men. Sixteen (age 24.56 +/- 2.10 years, height 174.53 8.54 cm, mass 84.59 14.75 kg, 1 repetition maximum [1RM] 124.71 17.58...

Previous research has investigated the force-time curve characteristics of isometric and dynamic muscle actions; however, few studies have addressed their relationship to exercise velocity-time variables. The purpose this study was investigate relationships between (high pull vertical jump peak velocity rate development [HPPV, HPRVD, VJPV, VJRVD]), (isometric force [IsoPF], body mass adjusted [IsoPF/BM], at different millisecond windows [IsoRFD50-250], [HPPF], [HPPF/BM]), height (VJHeight)....

Purpose: Appropriate and valid testing protocols for evaluating the physical performances of surfing athletes are not well refined. The purpose this project was to develop, refine, evaluate a protocol use with elite surfers, including measures anthropometry, strength power, endurance. Methods: After pilot consultation athletes, coaches, sport scientists, specific suite tests developed. Forty-four competitive junior surfers (16.2 ± 1.3 y, 166.3 7.3 cm, 57.9 8.5 kg) participated in study...

Dabbs, NC, Muñoz, CX, Tran, TT, Brown, LE, and Bottaro, M. Effect of different rest intervals after whole-body vibration on vertical jump performance. J Strength Cond Res 25(3): 662-667, 2011-Whole-body (WBV) may potentiate (VJ) performance via augmented muscular strength motor function. The purpose this study was to evaluate the effect WBV VJ Thirty recreationally trained subjects (15 men 15 women) volunteered participate in 4 testing visits separated by 24 hours. Visit 1 acted as a...

The purpose of this study was to determine whether any significant associations were present between lower-body strength and power, the performance turning aerial manoeuvres in elite surfing athletes. Eighteen competitive male surfers performed a battery physical tests (countermovement jump (CMJ), squat (SJ), isometric mid-thigh pull (IMTP)) during single session, addition having their ranked from highest lowest. Significant identified manoeuvre ranking and; peak force CMJ, SJ IMTP...

To identify whether there are any significant differences in the lower-body muscle structure and countermovement-jump (CMJ) squat-jump (SJ) performance between stronger weaker surfing athletes.Twenty elite male surfers had their assessed with ultrasonography completed a series of strength jump tests including isometric midthigh pull (IMTP), CMJ, SJ. Athletes were separated into (n = 10) groups based on IMTP performance.Large identified for vastus lateralis (VL) thickness (P .02, ES 1.22)...

Abstract A key challenge in bioelectronics is to establish and improve the interface between electronic devices living tissues, enabling a direct assessment of biological systems. Sensors integrated with plant tissue can provide valuable information about itself as well surrounding environment, including air soil quality. An obstacle developing interfaces mitigating formation fibrotic which hinder continuous accurate sensor operation over extended timeframes. Electronic systems that utilize...

Starting stance plays an important role in influencing short-distance sprint speed and, therefore, the ability to reach a ball during sport play. The purpose of this study was evaluate 4 different starting stances on time. Twenty-six male and female collegiate volleyball players volunteered participate 1 testing session. Each subject performed 3 15-ft trials at each (P-parallel, FS-false step, S-staggered, SFS-staggered false step) random order. Analysis variance revealed that there no...

Amonette, WE, Brown, LE, De Witt, JK, Dupler, TL, Tran, TT, Tufano, JJ, and Spiering, BA. Peak vertical jump power estimations in youths young adults. J Strength Cond Res 26(7): 1749–1755, 2012—The purpose of this study was to develop validate a regression equation estimate peak (PP) using large sample athletic Anthropometric ground reaction forces were collected from 460 male volunteers (age: 12–24 years). Of these volunteers, stratified random 45 subjects representing 3 different age...

In competitive surfing, the choice of, and ability to perform different manoeuvres are crucial for score outcome. Summarised information about manoeuvres, their frequency scoring could help coaches athletes make right decisions regarding which manoeuvre choose, if conditions allow, during a competition heat. All waves from quarter-finals up World Championship Tour 2012 were analysed in regards performed received. Reentries most common manoeuvre, but aerial tube rides scored higher with an...

The purpose of this study was to investigate two different resistance-training interventions (unstable or stable) on strength, power, and sensorimotor abilities in adolescent surfers. Ten competitive female male high school surfers were assessed before after each 2 × 7-week training intervention, using a within-subjects cross-over design. Results for strength revealed no condition-by-time interaction main effect condition. However, there significant time, with gains post-training. There...

Abstract Coyne, JOC, Tran, TT, Secomb, JL, Lundgren, LE, Farley, ORL, Newton, RU, and Sheppard, JM. Maximal strength training improves surfboard sprint endurance paddling performance in competitive recreational surfers. J Strength Cond Res 31(1): 244–253, 2017—Upper-body (UB) has very high correlations with faster speeds. However, there is no research examining the effects of improving UB on ability. This study aimed to determine influence that improvements closed–kinetic chain maximal have...

Dabbs, NC, Brown, LE, Coburn, JW, Lynn, SK, Biagini, MS, and Tran, TT. Effect of whole-body vibration warm-up on bat speed in women softball players. J Strength Cond Res 24(9): 2296-2299, 2010-Whole-body (WBV) may enhance human performance via augmented muscular strength motor function if used before performance. Because is a crucial aspect preparation for performance, it remains unknown WBV speed. The purpose this study was to investigate the effect Eleven National Collegiate Athletic...

This study aimed to describe the impact forces, accelerations and ankle range of motion in five different landing tasks that are used training testing for competitive surfing athletes, assist coaches prescription task progression monitoring load. Eleven athletes aged 24 ± 7 years participated, inertial sensors were fixed anterior aspect feet, mid-tibial shafts, sacrum eighth thoracic vertebrae on these athletes. Three performed force plates two a modified gymnastics set-up land-based aerial...

Parsonage, JR, Secomb, JL, Tran, TT, Farley, ORL, Nimphius, S, Lundgren, L, and Sheppard, JM. Gender differences in physical performance characteristics of elite surfers. J Strength Cond Res 31(9): 2417-2422, 2017-The purpose this study was to describe compare the gender Twenty competitive female surfers (CFS) 20 male (CMS) performed a battery tests: squat jump (SJ), isometric midthigh pull (IMTP), 15-m sprint paddle, 400-m endurance paddle during single testing session. All measures were...

We have evaluated the impact of a school-based intervention on oral health knowledge, behaviours, and status adolescents in Vietnam. This 6-month study included 462 aged 12 years from four selected schools Hue City, The group received 15-min lecture by dentist hands-on session mouth observation toothbrushing skills. control did not engage any educational activities during follow-up period. Data were collected at baseline 6 months through survey questionnaire clinical examination. Debris...

An online cross-sectional survey using a "snowball" sampling method was carried out to assess the adherence COVID-19 preventive measures among dental care workers (DCWs) during pandemic. Six questions concerning guidelines issued by Vietnam Ministry of Health were used evaluate DCWs' at clinics. The quality life DCWs assessed WHO-5 questionnaire and defined as low if total score less than 13 points. Factors relating prevention determined multivariate linear regression analysis. In total, 514...