and joint moments, but it is not clear whether the loading will be different between the right and left side of the body. Although fatigue in any running event (even as short as 15 min) can adversely impact running kinematics and kinetics 15 and increase rates of energy expenditure, this can be
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Running Mechanics and Metabolic Responses With Water Bottles and Bottle Belt Holders
Heather K. Vincent, Laura A. Zdziarski, Kyle Fallgatter, Giorgio Negron, Cong Chen, Trevor Leavitt, MaryBeth Horodyski, Joseph G. Wasser, and Kevin R. Vincent
Effectiveness of Accentuated Eccentric Loading: Contingent on Concentric Load
Justin J. Merrigan, James J. Tufano, Michael Falzone, and Margaret T. Jones
supramaximal AEL on the kinetics and kinematics during back-squat training with concentric loads of different magnitudes. Methods Subjects Twenty-one resistance-trained men (age, 24.0 [4.2] y; body mass, 85.5 [11.1] kg; height, 1.75 [0.07] m; body fat percentage, 17.8 [2.3]; back-squat 1-repetition maximum (1
High-Intensity Interval Training, Performance, and Oxygen Uptake Kinetics in Highly Trained Traditional Rowers
Iñigo Mujika, Nicolas Bourdillon, Rafa González De Txabarri, and Gregoire P. Millet
Pulmonary oxygen uptake kinetics (VO 2 kinetics) is considered a noninvasive measure of an athlete’s capacity to utilize O 2 and respond to variations in energy demands. It is an important assessment of an athlete’s integrative physiological response 1 in both endurance sports 2 , 3 and team
Recovery Kinetics After Speed-Endurance Training in Male Soccer Players
Theofanis Tzatzakis, Konstantinos Papanikolaou, Dimitrios Draganidis, Panagiotis Tsimeas, Savvas Kritikos, Athanasios Poulios, Vasiliki C. Laschou, Chariklia K. Deli, Athanasios Chatzinikolaou, Alexios Batrakoulis, Georgios Basdekis, Magni Mohr, Peter Krustrup, Athanasios Z. Jamurtas, and Ioannis G. Fatouros
. Study of recovery kinetics following SEPT would facilitate the optimization of its frequency during a microcycle. Therefore, this study aimed to (1) determine the recovery kinetics of fatigue, EIMD, and performance following SEPT; (2) examine whether work-to-rest ratio of SEPT affects recovery kinetics
Lower Limb Joint Kinetics During Walking in Middle-Aged Runners With Low or High Lifetime Running Exposure
Jake A. Melaro, Ramzi M. Majaj, Douglas W. Powell, Paul DeVita, and Max R. Paquette
function and the slowing of gait speed are concerning as preferred walking speed is a predictor of hospitalization risk, functional mobility impairments, and increased mortality rates in older adults. 16 – 19 A biomechanical hallmark of aging is a distal-to-proximal shift in joint kinetics during
Effect of Sampling Frequency on Isometric Midthigh-Pull Kinetics
Thomas Dos’Santos, Paul A. Jones, Jonathan Kelly, John J. McMahon, Paul Comfort, and Christopher Thomas
athletes. 19 Variations in IMTP kinetics reported across the literature may be partially explained by methodological differences. 2 , 8 , 13 , 16 , 18 Early research used a sampling frequency of 500 Hz and 600 Hz, 8 , 13 whereas more recent investigations have implemented a sampling frequency of 1000 Hz
Effects of Self-Selected Step Length and Trunk Position on Joint Kinetics in Highly Physically Fit Older Adults
Rebecca L. Krupenevich and Ross H. Miller
Older adults (aged approximately 65–85 y) typically take shorter steps compared with young adults (aged ∼18–35 y), even when walking at the same speed as young adults. 1 – 3 In addition, older adults display a “distal-to-proximal” shift in joint kinetics characterized by smaller ankle kinetics and
Improvement of Oxygen-Uptake Kinetics and Cycling Performance With Combined Prior Exercise and Fast Start
Kirsty Brock, Prokopios Antonellis, Matthew I. Black, Fred J. DiMenna, Anni Vanhatalo, Andrew M. Jones, and Stephen J. Bailey
The transition from rest to exercise mandates an immediate increase in skeletal-muscle contractile activity and ATP turnover. In contrast, the rate of pulmonary oxygen uptake ( V ˙ O 2 ) increases with exponential response kinetics, 1 which closely reflects the kinetics of muscle V ˙ O 2 , 2
Oxygen Uptake and Muscle Deoxygenation Kinetics During Skating: Comparison Between Slide-Board and Treadmill Skating
Tatiane Piucco, Rogério Soares, Fernando Diefenthaeler, Guillaume Y. Millet, and Juan M. Murias
The speed of adjustment of oxidative phosphorylation during the on-transient of exercise, that is, V ˙ O 2 kinetics, provides valuable information in relation to the instantaneous rate of aerobic and anaerobic energy transfer. 1 , 2 A faster V ˙ O 2 kinetics response implies a smaller oxygen
The Influence of Acute Hypoxia on Oxygen Uptake and Muscle Oxygenation Kinetics During Cycling Exercise in Prepubertal Boys
Max E. Weston, Neil Armstrong, Bert Bond, Owen W. Tomlinson, Craig A. Williams, and Alan R. Barker
phase II V ˙ O 2 kinetics during moderate-intensity exercise (below the gas exchange threshold [GET]) is equivocal ( 13 , 18 ), age-related changes in the phase II V ˙ O 2 kinetics and V ˙ O 2 slow component are consistently demonstrated during exercise above the GET during both heavy ( 11 , 17
