MuscleMeat

Te diep squatten gevaarlijk?

Schouderproblemen kan je makkelijk krijgen met low bar squats

En het feit dat je tegen eddine in gaat wilt alleen nog maar duidelijker maken wat voor sukkeltje je bent :roflol:

Depth before dishonor :D
 
:)
 
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Ja, je kan je endeldarm eruit poepen. Zo heb je 2 derde beens.
 
Dankzij Tymboo heb ik weer een nieuwe handtekening.

Ik zeg "amen".
 
De mannen met een 200+ squat, is dat een atg squat of?

Serieuze vraag overigens. ;)
 
Net ff gekeken op je links, érg bruut man. Met name je squat!
 
Jwdoetookmee zei:
Kijk eens dames:


Hieruit kan je dus sowieso concluderen dat het dom is om met een bounce omhoog te komen, omdat juist bij het keerpunt de grootste spieractiviteit plaatsvindt, ongeacht hoe diep deze is.

Also:

Balls in your court.
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Now comes my favourite sport.

Effect of Squat Depth and Barbell Load on Relative Muscular Effort in Squatting.
Bryanton MA, Kennedy MD, Carey JP, Chiu LZ.
Source1Neuromusculoskeletal Mechanics Research Program, Faculty of Physical Education and Recreation, University of Alberta, Edmonton, AB, Canada 2Faculty of Physical Education and Recreation, University of Alberta, Edmonton, AB, Canada 3Department of Mechanical Engineering, University of Alberta, Edmonton, AB, Canada.

Abstract
ABSTRACT: Resistance training is used to develop muscular strength and hypertrophy. Large muscle forces, in relation to the muscle's maximum force generating ability, are required to elicit these adaptations. Previous biomechanical analyses of multi-joint resistance exercises provide estimates of muscle force but not relative muscular effort (RME). The purpose of this investigation was to determine the relative muscular effort (RME) during squat exercise. Specifically the effects of barbell load and squat depth on hip extensor, knee extensor and ankle plantar-flexor RME were examined. Ten strength-trained women performed squats (50-90% 1 RM) in a motion analysis laboratory to determine hip extensor, knee extensor and ankle plantar-flexor net joint moment (NJM). Maximum isometric strength in relation to joint angle for these muscle groups was also determined. RME was determined as the ratio of NJM to maximum voluntary torque matched for joint angle. Barbell load and squat depth had significant interaction effects on hip extensor, knee extensor and ankle plantar-flexor RME (p<0.05). Knee extensor RME increased with greater squat depth but not barbell load, whereas the opposite was found for the ankle plantar-flexors. Both greater squat depth and barbell load increased hip extensor RME. These data suggest training for the knee extensors can be performed with low relative intensities but require a deep squat depth. Heavier barbell loads are required to train the hip extensors and ankle plantar-flexors. In designing resistance training programs with multi-joint exercises, how external factors influence RME of different muscle groups should be considered to meet training objectives.
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Effects of changing from full range of motion to partial range of motion on squat kinetics.
Drinkwater EJ, Moore NR, Bird SP.
SourceSchool of Human Movement Studies, Charles Sturt University, Bathurst, New South Wales, Australia. edrinkwater@csu.edu.au

Abstract
It is commonplace for people involved in recreational weight training to limit squat depth to lift heavier loads. This study compares differences in movement kinetics when squatting in the full range of motion (FROM) vs. partial range of motion (PROM). Ten men with a 1-year minimum of resistance training attended 4 sessions each comprising 4 sets of squats following one of FROM for 10 repetitions (FROM10) at an intensity of 67% 1 repetition maximum (1RM) FROM squat, PROM for 10 repetitions (PROM10) at 67% 1RM PROM squat, FROM for 5 repetitions (FROM5) at 83% FROM squat or PROM for 5 repetitions (PROM5) at 83% 1RM PROM squat. Movement velocity was not specified. Squat kinetics data were collected using an optical encoder. Differences between conditions were analyzed by repeated-measures analysis of variance and expressed as mean differences and standardized (Cohen) effect sizes with 95% confidence limits. The PROM5 power was substantially more than the PROM10 (98 W, -21 to 217; mean, lower and upper 95% confidence limits), FROM5 (168 W, 47-289), and FROM10 (255 W, 145-365). The force produced during PROM5 was substantially more than PROM10 (372 N, 254-490), FROM5 (854 N, 731-977), and FROM10 (1,069 N, 911-1227). The peak velocity produced during FROM10 was substantially more than FROM5 (0.105 m·s(-1), 0.044-0.166), PROM10 (0.246 m·s(-1), 0.167-0.325), and PROM5 (0.305 m·s(-1), 0.228-0.382). The FROM5 was substantially more than FROM10 (86 J, 59-113), PROM5 (142 J, 90-194), and PROM10 (211 J, 165-257). Therefore, either range of motion can have practical implications in designing resistance training programs depending on if the training goal is related to power and force development, maximizing work output or speed. Moderate-load PROM training, common among recreational weight trainers, is unlikely to provide higher movement kinetics.
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ahja :

Muscle activation in the loaded free barbell squat: a brief review.
Clark DR, Lambert MI, Hunter AM.
SourceScotland Institute of Sport, Stirling, Scotland. dave.clark@sisport.com

Abstract
The purpose of this article was to review a series of studies (n = 18) where muscle activation in the free barbell back squat was measured and discussed. The loaded barbell squat is widely used and central to many strength training programs. It is a functional and safe exercise that is obviously transferable to many movements in sports and life. Hence, a large and growing body of research has been published on various aspects of the squat. Training studies have measured the impact of barbell squat loading schemes on selected training adaptations including maximal strength and power changes in the squat. Squat exercise training adaptations and their impact on a variety of performance parameters, in particular countermovement jump, acceleration, and running speed, have also been reported. Furthermore, studies have reported on the muscle activation of the lower limb resulting from variations of squat depth, foot placement, training status, and training intensity. There have also been studies on the impact of squatting with or without a weight belt on trunk muscle activation (TMA). More recently, studies have reported on the effect of instability on TMA and squat performance. Research has also shown that muscle activation of the prime movers in the squat exercise increases with an increase in the external load. Also common variations such as stance width, hip rotation, and front squat do not significantly affect muscle activation. However, despite many studies, this information has not been consolidated, resulting in a lack of consensus about how the information can be applied. Therefore, the purpose of this review was to examine studies that reported muscle activation measured by electromyography in the free barbell back squat with the goal of clarifying the understanding of how the exercise can be applied.
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wanneer je met pubmed wil spelen, pas op dat je niet tegen sterker dan jezelf uitkomt....

en vooral : ALTIJD de volledige studie posten! Met een deel van de tekst weg te laten hou je infomatie tegen waardoor je argumenten AUTOMATISCH vervallen, ongeacht of ze terecht waren of niet.

Your arguments are from now on... Invalid!
 
Jwdoetnietmeermee.
 
Het is wel gevaarlijk voor je broek, wat meer kans op scheuren.

Zeker naarmate je meer een dikke reet krijgt.
 
Ok ik heb weer even wat filmpjes zitten kijken en heb toch wel even serieus een paar vragen voor degenen die wèl 200+ squatten..

http://www.youtube.com/watch?v=wZfxklV2Mug
Voorbeeld van een 280 kg max squat - Het is volgens mij voorbij parallel maar de ROM is op zich wel beperkt.

Even de exacte squat uitvoering (bar position, stance, etc) daar gelaten, van degenen waar ik op dbb filmpjes zie komt de diepte ongeveer hier op neer. Toch?

http://www.youtube.com/watch?v=j_ki721pSso
190kg paused. Dit vind ik full rom en ik neem even aan dat hij 200+ ook wel zo diep kan zonder pauze. Zijn er hier die zo diep 200+ squatten?

Nog een voorbeeld van wat ik full ROM vind: Klokov met 250kg paused front squat
http://www.youtube.com/watch?v=tDVNM9Yto7E

In short:

Hoe kijken jullie naar dit verschil in ROM?

Ik wil er in principe voor gaan om altijd die volledige ROM uit de laatste twee voorbeelden aan te houden, zouden jullie adviseren om dat dan ook gewoon lekker te doen? Of afhankelijk van doelen met verschillende methodes verschillende dieptes hanteren?
 
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Eerste filmpje van Shankle is niet onder par, denk er nog niet eens op.
Van de IPF-lifters hier, waaronder ikzelf, zal er niemand squatten volgens één van deze drie filmpjes, de andere twee zijn zelfs voor IPF-maatstaven gewoon overdreven diep. De regel is onder par. Maar onder par is dieper dan veel mensen denken.
 
Ik vind die laaste 2 wel erg diep, wel full rom maar zo ver hoeft tog niet? wel respect ik zou niet zo diep kunnen
 
ik squat zoals de laatste 2 filmpjes. reet tegen hiel aan. alleen dan niet met 200 kilo :P
 
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