Results 261 to 270 of about 2,841,411 (301)

Effects of Rate of Force Development on EMG Amplitude and Frequency

International Journal of Sports Medicine, 2005
The purpose of this study was to compare the amplitude and frequency of the gastrocnemius EMG during ramp and ballistic contractions in highly trained sprint athletes. Sixteen female sprinters performed ramp and ballistic isometric contractions on a Biodex dynamometer.
M D, Ricard, C, Ugrinowitsch, A C, Parcell, S, Hilton, M D, Rubley, R, Sawyer, C R, Poole   +6 more
openaire   +2 more sources

Rate of Force Development Adaptations After Weightlifting-Style Training

2021
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James, Lachlan, Suchomel, Timothy J, Comfort, Paul, G Gregory Haff, Connick, Mark J   +4 more
openaire   +1 more source

EFFECT OF POTENTIATION AND STRETCHING ON MAXIMAL FORCE,RATE OF FORCE DEVELOPMENT, AND RANGE OF MOTION

Journal of Strength and Conditioning Research, 2005
The purpose of this investigation was to compare the effects of stretching vs. potentiation on subsequent maximal force and rate of force development capabilities of subjects in an isometric squat. Ten male collegiate athletes participated as subjects in this study.
David M, Bazett-Jones, Jason B, Winchester, Jeffrey M, McBride   +2 more
openaire   +2 more sources

Age-Related Decline in the Rate of Force Development Scaling Factor

Motor Control, 2013
Physical quickness is less in older adults with implications for fall prevention, movement initiation, and activities of daily living. The purpose was to compare control of rapid contractions in young and older adults within two diverse muscle groups: powerful elbow extensors (EE) and dexterous index finger abductors (IFA). Most-rapid force pulses to a
Maria, Bellumori, Slobodan, Jaric, Christopher A, Knight   +2 more
openaire   +2 more sources

A novel method to assess rate of force relaxation: reliability and comparisons with rate of force development across various muscles

European Journal of Applied Physiology, 2018
The ability to generate quick submaximal muscle forces followed by quick relaxations is essential for various athletic and daily tasks. While force generation has been studied extensively, the studies of force relaxation are scarce. Therefore, we aimed to develop the rate of force relaxation scaling factor (RFR-SF) as a kinetic variable to assess the ...
Ryan M. Mathern, Mitchel Anhorn, Mehmet Uygur   +2 more
openaire   +2 more sources

Fatigue-induced dissociation between rate of force development and maximal force across repeated rapid contractions

Human Movement Science, 2017
We examined whether the presence of fatigue induced by prolonged running influenced the time courses of force generating capacities throughout a series of intermittent rapid contractions. Thirteen male amateur runners performed a set of 15 intermittent isometric rapid contractions of the knee extensor muscles, (3s/5s on/off) the day before (PRE) and ...
BOCCIA, GENNARO, DARDANELLO, DAVIDE, Tarperi, Cantor, Festa, Luca, La Torre, Antonio, Pellegrini, Barbara, Schena, Federico, RAINOLDI, Alberto   +7 more
openaire   +2 more sources

Early and late rate of force development: differential adaptive responses to resistance training?

Scandinavian Journal of Medicine & Science in Sports, 2010
The objective of this study is to investigate the potentially opposing influence of qualitative and quantitative muscular adaptations in response to high‐intensity resistance training on contractile rate of force development (RFD) in the early (<100 ms) and later phases (>200 ms) of rising muscle force. Fifteen healthy young males participated in
Andersen, L L, Andersen, Jesper Løvind, Zebis, M K, Aagaard, P   +3 more
openaire   +4 more sources

Increased rate of force development of elbow flexors by antagonist conditioning contraction

Human Movement Science, 2009
The effects of isometric antagonist conditioning contraction (ACC) at various durations and intensities on the contractile force, electromyographic (EMG) amplitude, and their rates of rise of elbow flexor muscles were examined in healthy participants. In particular, we focused on the change in the maximum rate of initial force development of agonists ...
Takashi, Kamimura, Koichi, Yoshioka, Susumu, Ito, Tatsumi, Kusakabe   +3 more
openaire   +2 more sources

The effect of rate of force development on maximal force production: acute and training-related aspects

European Journal of Applied Physiology, 2007
The force generated during a maximal voluntary contraction (MVC) is known to increase by resistance training. Although this increase cannot be solely attributed to changes in the muscle itself, many studies examining muscle activation at peak force failed to detect neural adaptations with resistance training. However, the activation prior to peak force
Andreas, Holtermann, Karin, Roeleveld, Beatrix, Vereijken, Gertjan, Ettema   +3 more
openaire   +2 more sources

Evidence of bilinearity in the relationship between rate of neuromuscular excitation and rate of force development

Journal of Electromyography and Kinesiology, 2019
The purpose was to examine the relationship between the rate of neural excitation (rate of rise in the electromyogram, EMG) and the rate of isometric force development (RFD) to determine whether surface EMG measures can detect nonlinearity that is expected due to underlying motor unit discharge behavior and the summation of progressively larger motor ...
Micah D, Josephson, William C, Rose, Christopher A, Knight   +2 more
openaire   +2 more sources