- Sports Performance and Training
- Sports injuries and prevention
- Sports Dynamics and Biomechanics
- Muscle activation and electromyography studies
- Cardiovascular and exercise physiology
- Sport Psychology and Performance
- Shoulder Injury and Treatment
- Motor Control and Adaptation
- Lower Extremity Biomechanics and Pathologies
- Children's Physical and Motor Development
- Exercise and Physiological Responses
- Winter Sports Injuries and Performance
- Motivation and Self-Concept in Sports
- Muscle metabolism and nutrition
- Genetics and Physical Performance
- Physical Education and Pedagogy
- Ergonomics and Musculoskeletal Disorders
- Cardiovascular Effects of Exercise
- Occupational Health and Performance
- Noise Effects and Management
- Physical Activity and Health
- Effects of Vibration on Health
- Business, Education, Mathematics Research
- Sports Analytics and Performance
- Mechanics and Biomechanics Studies
Nord University
2016-2025
Auckland University of Technology
2020-2025
Association for the Development of Douro Viticulture
2009-2012
University of Science and Technology
2007
Norwegian University of Science and Technology
2003-2006
NTNU Samfunnsforskning
2006
The purpose was to study the effect of a sling exercise training (SET)-based core stability program on maximal throwing velocity among female handball players. Twenty-four high-school players (16.6 ± 0.3 years, 63 6 kg, and 169 7 cm) participated were initially divided into SET group (n = 14) control (CON, n 10). Both groups performed their regular for weeks. In addition, twice week, progressive stability-training consisting unstable closed kinetic chain exercises. Maximal measured before...
The purpose of this study was to examine the relationship between ball-throwing velocity during a 3-step running throw and dynamic strength, power, bar concentric-only bench-press exercise in team-handball players.Fourteen elite senior male players volunteered participate. Each volunteer had power measured test with 26, 36, 46 kg, as well having 1-repetition-maximum (1-RMBP) strength determined. Ball-throwing evaluated standard using radar gun.Ball-throwing related absolute load lifted...
It is often recommended that in-season training programs aim to maintain muscular strength and power developed during the off-season. However, improvements in performance may be possible with a well-designed regimen. The purpose of this case report describe changes physical after an regimen professional female volleyball players order determine whether might improved. Apart from normal practice sessions, 10 elite completed 2 sessions per week, which included both resistance plyometric...
Marques, MC, van den Tillaar, R, Gabbett, TJ, Reis, VM, and González-Badillo, JJ. Physical fitness qualities of professional volleyball players: Determination positional differences. J Strength Cond Res 23(4): 1106-1111, 2009-The purpose this study was to investigate the anthropometric strength characteristics elite male athletes determine if differences exist in these according playing position. A group 35 team players (mean ± SD age: 26.6 3.1 years) participated study. Players were...
Several studies have examined the effect of hamstring strength exercises upon strains in team sports that involve many sprints. However, there has been no cross comparison among muscle activation these training with actual sprinting. Therefore, aim this study was to examine different and compare activity group during various muscular produced maximal sprints.Twelve male students (age 25 ± 6.2 years, 1.80 7.1 m, body mass 81.1 15.6 kg) participated study. Surface EMG electrodes were placed on...
This study investigated the effect of knee flexion range motion (ROM) during leg press exercise on quadriceps femoris muscle hypertrophy in resistance-trained individuals. Twenty-three participants (training age: 7.2 ± 3.5 years) completed a within-participant design, performing four sets unilateral presses to momentary failure twice weekly for eight weeks. In one leg, was fixed at approximately 5–100°, while other used their maximum individualized ROM (5–154 7.8°). Quadriceps thickness...
Muscle hypertrophy is often a desired goal of resistance training, and strategies that extend training beyond momentary failure may enhance muscular adaptations. Thus, the objective this study was to assess whether performing additional past-failure partial repetitions increased muscle hypertrophy. A total 23 untrained men completed 10-week within-participant intervention study. This comprised two weekly sessions four sets standing Smith machine calf raises. One limb randomly allocated...
The aim of this study was to investigate the contribution upper extremity, trunk, and lower extremity movements in overarm throwing team handball. In total, 11 joint during throw were analyzed. analysis consists maximal angles, angles at ball release, angular velocities their timing throw. Only elbow angle (extension movement range) level internal rotation velocity shoulder release showed a significant relationship with performance. Also, correlation found for pelvis velocity, indicating...
The purposes of this study were to examine the activity profile elite adolescent players during regular team handball games and compare physical motor performance between first second halves a match. Activity patterns (video analysis) heart-rate (HR) responses (telemetry) monitored in top national-division (18 men, aged 15.1 ± 0.6 years) throughout 6 regulation (25-minute with 10-minute interval). total distance covered averaged 1,777 264 m per game (7.4% less than half, p > 0.05). Players...
Abstract The purpose of this study was to compare one-repetition maximum (1-RM) and muscle activity in three chest-press exercises with different stability requirements (Smith machine, barbell, dumbbells). Twelve healthy, resistance-trained males (age 22.7 ± 1.7 years, body mass 78.6 7.6 kg, stature 1.80 0.06 m) were tested for 1-RM the counterbalanced order 3–5 days rest between exercises. One-repetition electromyographic pectoralis major, deltoid anterior, biceps, triceps brachii recorded...
Abstract The purpose of this study was to examine muscle activity and three-dimensional kinematics in the ascending phase a successful one-repetition maximum attempt bench press for 12 recreational weight-training athletes, with special attention sticking period. period defined as first deceleration upward movement (i.e. from highest barbell velocity until local lowest velocity). All participants showed during that started about 0.2 s after initial movement, lasted 0.9 s. Electromyography...
Relationships Between Vertical Jump and Full Squat Power Outputs With Sprint Times in U21 Soccer Players The aim of this study was to assess the relationship between power variables vertical jump full squat with sprint performance soccer players. Fourteen under-21 players were evaluated two testing sessions separated by 7 days. In first session, height countermovement assessed, output for both loaded (CMJ L ) (FS) exercises progressive load tests. second session included sprinting at 10, 20,...
Abstract The objective of this study was to carry out a detailed quantitative analysis the very high intensity runs during actual play in 2013-2014 Spanish First Division, at general level and according specific playing position half. 380 matches Division 2013 - 2014 season were monitored using Mediacoach video motion tool. Total distance, (above 21 km/h) running distance number 230 players from 20 teams analysed. main findings that performance indicators intensities decreased first half...
Purpose/Background Bilateral squats are commonly used in lower body strength training programs, while unilateral mainly as additional or rehabilitative exercises. Little has been reported regarding the kinetics, kinematics and muscle activation comparison to bilateral squats. Therefore, purpose of this study was compare activity, barbell between with same external load per leg experienced resistance-trained participants. Methods Fourteen males (age 23 ± 4years, mass 80.5 ± 8.5kg height...
This study investigated the influence of instruction on ball velocity and accuracy a goal-directed overarm throw. 9 experienced Norwegian male team handball players executed throwing task randomly seven times under 5 different instructions varying from emphasizing speed to accuracy. When increasingly emphasized accuracy, decreased. However, did not improve when subjects were instructed focus it. A possible explanation for this finding could lie in specific subject group. The highly with an...
Expert team-handball players do not show the typical trade-off between speed and accuracy in overarm throwing. Van den Tillaar Ettema (2003a) attributed this result to uniqueness of training experience group. The purpose study was test their hypothesis by comparing experts with novices on throwing manipulating goal task using different instructions. No found for (n = 13; M age 22.7 yr., SD 2.2) or 9; Mage 24 2.2): did change instruction. Furthermore, linear velocities ball endpoints body...
Muscle strain is one of the most common injuries, resulting in a decreased range motion (ROM) this group muscles. Systematic stretching over period time needed to increase ROM. The purpose study was determine if whole-body vibration (WBV) training would have positive effect on flexibility (contract-release method) and thereby ROM hamstring musculature. In study, 19 undergraduate students physical education (12 women 7 men, age 21.5 +/- 2.0 years) served as subjects were randomly assigned...
Research examining the proximal-to-distal sequencing of segments body involved in overarm throwing has been equivocal: some studies have found support for concept while others not. The aim present study, therefore, was to determine if there is a sequence timing movements joints and distal endpoints throwing. three-dimensional kinematics penalty throw experienced team handball players (n = 11) were recorded analysed with regard events. We maximal velocity six angular 11 joints, as well...
Purpose: This study was designed to compare the differences in EMG and kinematics between successful unsuccessful attempts bench pressing at one repetition maximum (1RM) recreational weight-trained subjects. We hypothesized that failure occurs during sticking period (the which there is a temporary reduction movement velocity). Methods: Eleven male subjects (age = 21.9 ± 1.8 yr, mass 80.0 11.2 kg, height 1.79 0.08 m) with least 1 yr of press training experience participated this study. They...