Sentences with phrase «isometric force»

Training on unstable surfaces tends to produce similar gains in maximum isometric force as training on stable surfaces (Kibele & Behm, 2009; Sparkes & Behm, 2010; Prieske et al. 2016).

After completing the foam rolling, the subjects then completed 4 athletic tests (vertical jump height and power, isometric force, and pro agility test) to determine overall performance.

Other studies have reported associations between sprinting ability and maximum isometric force (West et al. 2011; Tillin et al. 2013; Thomas et al. 2015; 2016), but many have not (Wilson et al. 1995; Kukolj et al. 1999; Requena et al. 2009).

Although the results apply to static ROM and isometric force production, which may or may not have application to dynamic movements, the results give supporting evidence to the potential benefits of employing a foam rolling program to increase joint ROM before a physical activity that requires substantial force production.

Wiktorsson - Moller et al. (38) found that massage induced a decrease in quadriceps isometric force and hamstrings isokinetic force, which was contradictory to the results found in the present study.

During the precondition test, the subjects performed 2 MVCs (with 5 minutes of rest between each MVC) to determine their maximum isometric force output.

However, isometric force is greater than expected when contractions follow eccentric contractions compared to when they follow concentric contractions at the same muscle length (e.g. Morgan et al. 2000).

The length - tension relationship describes the phenomenon whereby a muscle or single muscle fiber displays different levels of maximum isometric force production depending on the length at which it is tested (Gordon et al. 1966).

However, the relationship between the EMG amplitude recorded and dynamic force production is generally thought be less strong than the equivalent relationship with isometric force production.

Consequently, it is generally accepted that isometric force or torque represents the measure of strength that has the greatest construct validity (Enoka, 1988; Jaric, 2002).

Olympic weightlifting training improves snatch and clean and jerk performance, lower body strength (as measured by 1RM squat and isometric force), lower body power output, short distance sprint running ability, vertical jump height, and maximum aerobic capacity (as measured by VO2 - max).

Most investigations have reported that long - term periods of Olympic weightlifting lead to increases in lower body strength, which are most commonly measured by reference to the 1RM back squat (Hoffman et al. 2004; Tricoli et al. 2005) but also isometric force production (Häkkinen et al. 1988; Haff et al. 2008) and isokinetic torque (Chaouachi et al. 2014).

The fatigue index curve of EDL muscles from IL - 15Rα — KO mice was shifted to the right during the first 70 seconds of the repeated stimulation protocol, demonstrating the maintenance of isometric force with repeated contractions (Figure 1A).

The fast EDL muscles from IL - 15Rα — KO mice (n = 21) and B6129 control mice (n = 16) were stimulated ex vivo to quantify isometric force production and fatigue properties.

Fast EDL and slow soleus muscles from all mouse strains were dissected and transferred to oxygenated Ringer's solution for assessment of isometric force — generating capacity ex vivo.

Altered isometric force production and resistance to fatigue in fast muscles from IL - 15Rα — KO mice.

Specifically, lower isometric forces coupled with a lower twitch / tetanus ratio and lower rates of force development and relaxation indicate that EDL muscles from IL - 15Rα — KO mice have adopted a slower contractile phenotype.

Not exact matches

He did isometric exercises on the trip to Japan, and he is doing the Royal Canadian Air Force exercises and has lost 18 pounds.

Tensegrity structures consist of elements that are either in a state of tension or compression, and the balance between those interacting forces allows such structures to stabilize themselves in state of isometric tension, much like muscles and bones in our bodies.

Isometric twitch and tetanic contractions were performed using a stimulator and a force transducer to quantify the maximum contractile forces, as well as parameters related to the speed of contraction and speed of relaxation of dissected muscles.

Parameters analyzed from isometric contractions included peak isometric twitch force (Pt), time to peak twitch tension (TPT), 1/2 RT, and peak isometric tetanic force (Po), as previously described (61).

These muscles are involved in almost every movement of the human body and can act as isometric or dynamic stabilizers for movement, initiate movement by themselves or transfer force from one extremity to another.

End each set of glute bridges with an isometric hold or pulses to force your glutes to work harder.

This can be achieved in a number of ways including the use of pre-exhaustion, super sets, partial reps, isometric contractions and forced reps.

The small motions, high reps and isometric movements (squeezes and pulses) force the muscles to shake uncontrollably.

Enhancing eccentric strength improves an athlete's ability to absorb force (while decelerating), whereas isometrics will improve an athletes ability to overcome inertia.

In contrast, the «sustained» isometrics are performed over approximately 3 seconds, and involve reaching maximal force.

In these studies, «explosive» isometrics are performed such that the individual exerts force for a short duration of time (usually around 1 second), trying to reach around 80 — 90 % of maximum force.

They found that competition results in both the snatch and the clean and jerk correlated strongly with maximum isometric mid-thigh pull force (r = 0.83 — 0.84).

Performance is strongly associated with both maximum isometric mid-thigh pull force and 1RM back squat.

Haff et al. (2005) explored a smaller group of female Olympic weightlifters and also found close relationships between maximum isometric mid-thigh pull force and the snatch (r = 0.93), the clean and jerk (r = 0.64), and the total (r = 0.80).

Peak force in the dynamic mid-thigh pull is associated with peak force in the isometric mid-thigh pull, which is closely related to Olympic weightlifting ability.

Although there is good evidence for velocity - specificity occurring after dynamic strength training, some studies have also shown that strength training with «explosive» isometric contractions produces different results from «sustained» maximal force isometric contractions.

Better sprinters produce more force faster in relevant joints in an isometric test.

Therefore, high - velocity strength may be more relevant than rate of force development in concentric contractions, compared to in isometric and eccentric contractions.

16.0 kg), Haff et al. (2005) explored the relationship between the isometric mid-thigh pull and (1) the dynamic mid-thigh pull with a load equivalent to 30 % of maximum isometric mid-thigh pull force, and (2) the dynamic mid-thigh pull with 100 kg.

Overall, EMG amplitude in maximum voluntary isometric contractions does not appear to be altered differently after high - force or high - force - intent training, compared to after high - velocity or explosive - intent training (Lamas et al. 2012; Tillin & Folland, 2014; Balshaw et al. 2016).

This type of isometric is called, Overcoming because you are pushing against a force that is immovable.

Yielding Isometrics are exercises where you push or pull against a movable force.

Isometric knee extensor force was measured using a dynamometer.

The job of the hamstrings in sport movement (aside from isometric pursuits, such as wrestling or rock climbing) is actually not to create force on its own, but rather to transfer force between the hip and shin.

He might use overcoming isometrics even — which means pulling or pushing against a completely immovable force.

This forces your body to engage your stabilizing muscles even more to hold the isometric position and resist the urge to drop your hips.

The difference is in the force of the isometric contraction, which in MET's are a lot lower.

The resistance can be either isotonic (when the body moves against the force) or isometric (body stays still against the force).

6 exercises, one set each, very slow reps, to failure and forced reps, to isometric failure.

Isometric stretching serves two purposes; firstly it does as exactly the same as Waiting out the tension and forces the contracted muscles to relax and secondly, it builds up the strength of your muscles in the stretched position which is great because the stronger your hip muscles and hamstrings are in their maxim range the less likely they are to tense up in the first place.

Similarly, some researchers have found larger relationships between single - leg isometric mid-thigh pull (IMTP) force and COD ability than between two - leg IMTP force (Thomas et al. 2016).

Joint moments measured using isometric dynamometry are often very different in one part of the joint range of motion (ROM) to another (Worrell et al. 2001), which is most likely because of alterations in both muscle force at different muscle lengths (the length - tension relationship) and because of changes in the moment arm length (Baltzopoulos & Brodie, 1989).

In other words, under isometric or slow - speed dynamic conditions, EMG amplitude provides a very good window into the maximum force - producing abilities of a muscle.