The Impact of Velocity of Movement on Performance Factors in Resistance Exercise

[3XL]

The Impact of Velocity of Movement on Performance Factors in Resistance Exercise

Disa L. Hatfield, William J. Kraemer, Barry A. Spiering, Jeff S. Volek, Tomoko Shimano, Ricardo Silvestre, Jakob L. Vingren, Maren S. Fragala, Ana L. Gómez, and Carl M. Maresh - Human Performance Laboratory, Department of Kinesiology, University of Connecticut, Storrs, Connecticut 06269;

Keijo Häkkinen - Department of Biology of Physical Activity, University of Jyväskylä, Jyväskylä, Finland;

Luuk P.B. Spreuwenberg - Department of Movement Sciences, University of Maastricht, Maastricht, Netherlands

Steven J. Fleck - Department of Sport Sciences, Colorado College, Colorado Springs, Colorado 80903;

Robert U. Newton - School of Biomedical and Sports Science, Edith Cowan University, Joondalup, Western Australia, Australia

ABSTRACT

Hatfield, D.L., W.J. Kraemer, B.A. Spiering, K. Häkkinen, J.S. Volek, T. Shimano, L.P.B. Spreuwenberg, R. Silvestre, J.L. Vingren, M.S. Fragala, A.L. Gómez, S.J. Fleck, R.U. Newton, and C.M. Maresh.

The impact of velocity of movement on performance factors in resistance exercise.

J. Strength Cond. Res. 20(4):760–766. 2006.—The purpose of this study was to determine the impact of a very slow (VS) velocity and a self-selected volitional (VOL) velocity at varying intensities on repetition number, peak force, peak power, and total volume in the squat and shoulder press exercises. On separate testing days, 9 resistance trained men (age: 23.9 * 2.5 years; height: 174.8 * 6.5 cm; body mass: 80.1 * 12.4 kg) performed a squat (SQ) and shoulder press (SP) exercise at 60 or 80% of 1 repetition maximum (1RM) at either VOL or VS (10-second eccentric and 10-second concentric actions) velocity for as many repetitions as possible. Force, power, and volume (repetitions × kg) were also determined. Subjects performed significantly fewer repetitions (p 0.05) in the VS exercises (60% VS SQ 5 * 1 vs. VOL SQ 24 * 2; 80% VS SQ 2 * 0 vs. VOL SQ 12 * 1; 60% VS SP 4 * 1 vs. VOL SP 14 * 2; 80% VS SP 1 * 0 vs. VOL SP 6 * 1). Peak force and power were significantly higher at the VOL speed (peak force [in newtons]: 60% VS SQ 564.4 * 77.3 vs. VOL SQ 1229.0 * 134.9 N; 80% VS SQ 457.3 * 27.9 vs. VOL SQ 1059.3 * 104.7 N; 60% VS SP 321.6 * 37.8 vs. VOL SP 940.7 * 144.8 N; 80% VS SP 296.5 * 24.7 vs. VOL SP 702.5 * 57.7 N; and peak power [in watts]: 60% VS SQ 271.2 * 40.1 vs. VOL SQ 783.2 * 129.1 W; 80% VS SQ 229.3 * 49.5 vs. VOL SQ 520.2 * 85.8 W; 60% VS SP 91.3 * 21.9 vs. VOL SP 706.6 * 151.4 W; 80% VS SP 78.1 * 19.8 vs. VOL SP 277.6 * 46.4 W). VOL speed elicited higher total volume than the VS velocity.

The results of this study indicate that a VS velocity may not elicit appropriate levels of force, power, or volume to optimize strength and athletic performance.



Maw Slo-Mo = No No

[builderB]

Jah duh
maar nu is 10 sec conc en 10 sec eccentrisch wel heeeeeel lang. pfiew.

[3XL]

Origineel gepost door builderB

maar nu is 10 sec conc en 10 sec eccentrisch wel heeeeeel lang. pfiew.

Toch is het een trainingsvorm die een tijdje terug flink in zwang was (Slo-Mo training) en nog steeds af&toe de kop op steekt.

BTW, al wat wijzer geworden betreffende de Petersen oefeningen ?

[builderB]

Sloom-o-training. Damn 10 sec, de gemiddelde oma doet er minder lang over om op te staan.

had je nog willen PM'en over die stepups.
Bedankt iig, is idd een toffe oefening. Weer eentje d'r bij