- Sports Performance and Training
- Sports injuries and prevention
- Cardiovascular and exercise physiology
- Sports Dynamics and Biomechanics
- Sport Psychology and Performance
- Pharmacological Effects and Assays
- Muscle metabolism and nutrition
- Trauma Management and Diagnosis
- Muscle activation and electromyography studies
- Exercise and Physiological Responses
- Genetics and Physical Performance
- Bone fractures and treatments
University of Lincoln
2016-2025
Center for Health, Exercise and Sport Sciences
2016
Abstract Dorrell, HF, Smith, MF, and Gee, TI. Comparison of velocity-based traditional percentage-based loading methods on maximal strength power adaptations. J Strength Cond Res 34(1): 46–53, 2020—This study explored the effects training (VBT) jump height. Sixteen trained men (22.8 ± 4.5 years) completed a countermovement (CMJ) test 1 repetition maximum (1RM) assessment back squat, bench press, strict overhead deadlift, before after 6 weeks resistance training. Participants were assigned to...
This study investigated the inter-day and intra-device reliability, criterion validity of six devices for measuring barbell velocity in free-weight back squat power clean. In total, 10 competitive weightlifters completed an initial one repetition maximum (1RM) assessment followed by three load-velocity profiles (40-100% 1RM) both exercises on four separate occasions. Mean peak was measured simultaneously each device compared to 3D motion capture all repetitions. Reliability assessed via...
This study investigated the validity and reliability of GymAware PowerTool (GPT). Thirteen resistance trained participants completed three visits, consisting repetitions free-weight back squat, bench press, deadlift (80% one repetition maximum), countermovement jump. Bar displacement, peak mean velocity, force, jump height were calculated using GPT, a three-dimensional motion capture system (Motion Analysis Corporation; 150 Hz), force plate (Kistler; 1500 Hz). Least products regression used...
Abstract Weakley, J, Chalkley, D, Johnston, R, García-Ramos, A, Townshend, Dorrell, H, Pearson, M, Morrison, and Cole, M. Criterion validity, interunit between-day reliability of the FLEX for measuring barbell velocity during commonly used resistance training exercises. J Strength Cond Res 34(6): 1519–1524, 2020—The aim this study was to assess criterion (accounting technological biological variance), a novel optic laser device (FLEX) quantifying mean concentric velocity. To validity against...
ABSTRACT Velocity-based training (VBT) uses the measurement of velocity to help inform and influence testing, monitoring, programming, autoregulation, feedback strategies within strength conditioning (S&C) practice. This review focuses specifically on definitions underpinning principles VBT, as well load-velocity profiling, while undertaking an in-depth evaluation literature translating this information into practical recommendations for S&C coaches. There is a detailed different...
The study aim was to compare different predictive models in one repetition maximum (1RM) estimation from load-velocity profile (LVP) data. Fourteen strength-trained men underwent initial 1RMs the free-weight back squat, followed by two LVPs, over three sessions. Profiles were constructed via a combined method (jump squat (0 load, 30–60% 1RM) + (70–100% 1RM)) or only 30–100% 10% increments. Quadratic and linear regression modeling applied data estimate 80% 1RM (kg) using mean velocity...
This study compared the effects of dictating load using individual (ILVP) or group (GLVP) load-velocity profiles on lower-body strength and power. Nineteen trained males (23.6 ± 3.7 years) completed a back squat one-repetition maximum (1-RM), profiling (LVP), countermovement (CMJ), static-squat (SSJ) standing-broad (SBJ) jump tests before after 6 weeks resistance training. Participants were randomly assigned to an ILVP, GLVP intervention with intra-session dictated through real-time velocity...
The purpose of the study was to investigate acute effects two different quantities branched-chain amino acids (BCAA) on recovery muscle function following high-intensity resistance training in trained individuals.Five resistance-trained males were recruited and performed baseline assessments of, countermovement (CMJ) squat jump (SJ), peak (PP) mean (MP) power (6s Cycle Sprint) perceived soreness (RMS).In a counterbalanced, single-blind fashion, participants provided with either, placebo or 6...
Different relative loads during resistance training movements are considered to result in varying physiological adaptions. The challenge facing coaches and athletes is how determine what absolute load relates the prescribed account for changes strength. Velocity based may offer a solution this problem. Currently there limited guidelines follow proposed methods associated with increased burden. Therefore, article provides simple evidence an online application support use of velocity as method...
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