[en] AIM: The aim of this study was to investigate the ability of isoinertial assessment to monitor training effects. Both parametric and curve analysis of the results were used to underline the specificity of maximal strength and maximal velocity resistance training methods. METHODS: Twenty-four untrained subjects were randomly assigned into three groups: a maximal strength-training group (heavy loads: 80% to 98% of the one repetition maximum [1-RM]), a maximal velocity-training group (light loads: 25% to 50% of 1-RM) and a control group. All the subjects were tested in bench press exercises before and after the 6-week training period. An isoinertial dynamometer was used to assess velocity and power at four increasing loads: 35%, 50%, 70% and 95% of the 1-RM load. Post-test protocol also included a trial at 105% of the 1-RM load. RESULTS: Isoinertial assessment demonstrated for both training groups significant gains at each load. Some specific adaptations appeared: strength training presented a greater increase for average power (+49%, P<0.001) and average velocity (+48%, P<0.001) at 95% of 1-RM, while velocity training emerged as a more effective way to improve performance at 35% and 50% of 1-RM (+11 to 22%) in comparison with strength training (+7 to 12%). The analysis of power and velocity curves specified that strength training enhanced performance earlier in the movement, while velocity training extended the propulsive action at the end of movement. CONCLUSION: The original combination of parametric and curve isoinertial assessment appears to be a relevant method for monitoring specific training effects. The complementarity of both strength and velocity training programmes underlined in this study could lead to practical applications in profiling training programmes.
Disciplines :
Orthopedics, rehabilitation & sports medicine
Author, co-author :
Jidovtseff, Boris ; Université de Liège - ULiège > Département des sciences de la motricité > Entraînement
Croisier, Jean-Louis ; Université de Liège - ULiège > Département des sciences de la motricité > Kinésithérapie générale et réadaptation
Scimar, Nathalie ; Centre Hospitalier Universitaire de Liège - CHU > Médecine de l'appareil locomoteur
Demoulin, Christophe ; Université de Liège - ULiège > Département des sciences de la motricité > Kinésithérapie spécifique et réadaptation motrice
Maquet, Didier ; Université de Liège - ULiège > Département des sciences de la motricité > Département des sciences de la motricité
Crielaard, Jean-Michel ; Université de Liège - ULiège > Département des sciences de la motricité > Evaluation et entraînement des aptitudes physiques
Language :
English
Title :
The Ability of Isoinertial Assessment to Monitor Specific Training Effects
Abernethy P, Wilson G, Logan P. Strength and power assessment. Issues, controversies and challenges. Sports Med 1995;19:401-17.
Aagaard P, Simonsen EB, Trolle M, Bangsbo J, Klausen K. Specificity of training velocity and training load on gains in isokinetic knee joint strength. Acta Physiol Scand 1996;156:123-9.
Bell GJ, Petersen SR, Maclean I, Reid DC, Quinney HA. Effect of high velocity resistance training on peak torque, cross sectional area and myofibrillar ATPase activity. J Sports Med Phys Fitness 1992;32:10-8.
Kanehisa H, Miyashita M. Specificity of velocity in strength training. Eur J Appl Physiol Occup Physiol 1983;52:104-6.
Morrissey MC, Harman EA, Johnson MJ. Resistance training modes: specificity and effectiveness. Med Sci Sports Exerc 1995;27:648-60.
Murphy A, Wilson G, Pryor J. Use of isoinertial force relationship in the prediction of dynamic human performance. Eur J Appl Physiol 1994;69:250-7.
American College of Sports Medicine. Progression Models in Resistance Training for Healthy Adults. Med Sci Sports Exerc 2002;34:364-80.
Kraemer, WJ, And AC Fry. Strength testing: development and evaluation of methodology. In: Maud PJ, Foster C editors. Physiological assessment of human fitness. Champaign IL: Human Kinetics; 1995. p. 115-38.
Wilson GJ, Newton RU, Murphy AJ, Humphries BJ. The optimal training load for the development of dynamic athletic performance. Med Sci Sports Exerc 1993;25:1279-86.
Bosco C, Belli A, Astrua M, Tihanyi J, Pozzo R, Kellis S et al. A dynamometer for evaluation of dynamic muscle work. Eur J Appl Physiol 1995;70:379-86.
Cronin JB, McNair PJ, Marshall RN. The role of maximal strength and load on initial power production. Med Sci Sports Exerc 2000;32:1763-9.
Jidovtseff B, Croisier JL, Lhermerout C, Serre L, Sac D, Crielaard JM. The concept of isoinertial assessment: reproducibility analysis and descriptive data. Isokin Exerc Sci 2006;14:52-62.
Rahmani A, Dalleau G, Viale F, Hautier C, Lacour JR. Validity and reliability of a kinematic device for measuring the force developed during squatting. J Appl Biomechanics 2000;16:26-35.
Thompson CJ, Bemben MG. Reliability and comparability of the accelerometer as a measure of muscular power. Med Sci Sports Exerc 1999;31:897-902.
Wilson GJ, Murphy AJ, Giorgi A. Weight and plyometric training: effects on eccentric and concentric force production. Can J Appl Physiol 1996;21:301-15.
Kraemer WJ, Keuning M, Ratamess NA, Volek JS, McCormick M, Bush JA et al. Resistance training combined with bench-step aerobics enhances women's health profile. Med Sci Sports Exerc 2001;33:259-69.
Almasbakk B, Hoff J. Coordination, the determinant of velocity specificity? J Appl Physiol 1996;81:2046-52.
Abernethy PJ, Jurimae J. Cross-sectional and longitudinal uses of isoinertial, isometric, and isokinetic dynamometry. Med Sci Sports Exerc 1996;28:1180-7.
Kraemer WJ, Mazzetti SA, Nindl BC, Gotshalk LA, Volek JS, Bush JA et al. Effect of resistance training on women's strength/power and occupational performances. Med Sci Sports Exerc 2001;33:1011-25.
Murphy AJ, Wilson GJ. The ability of tests of muscular function to reflect training-induced changes in performance. J Sports Sci 1997;15:191-200.
Hortobagyi T, Katch F. Reliability of muscle mechanical characteristics for isokinetic and isotonic squat and BP exercise using a multi-function computerized dynamometer. Res Quat Exerc Sports 1990;61:191-5.
Aagaard P, Simonsen EB, Andersen JL, Magnusson P, Dyhre-Poulsen P. Neural adaptation to resistance training: changes in evoked V-wave and H-reflex responses. J Appl Physiol 2002;92:2309-18.
Hakkinen K, Kallinen M, Izquierdo M, Jokelainen K, Lassila H, Malkia E et al. Changes in agonist-antagonist EMG, muscle CSA, and force during strength training in middle-aged and older people. J Appl Physiol 1998;84:1341-9.
Hakkinen K. Neuromuscular and hormonal adaptations during strength and power training. A review. J Sports Med Phys Fitness 1989;29:9-26.
Rutherford O, Jones D. The role of learning and coordination in strength training. Eur J Appl Physiol 1986;55:100-5.
Behm DG, Sale DG. Intended rather than actual movement velocity determines velocity-specific training response. J Appl Physiol 1993;74:359-68.
Missitzi J, Geladas N, Klissouras V. Heritability in neuromuscular coordination: implications for motor control strategies. Med Sci Sports Exerc 2004;36:233-40.
Thomis M, Beunen G, Maes H, Blimkie C, Van Leemputte M, Claessens A et al. Strength training: Importance of genetic factors. Med Sci Sports Exerc 1990;30:724-31.
Croisier JL, Crielaard JM. Exploration isocinétique: analyse des courbes. Ann Réadapt Méd Phys 1999;42:497-502.
Walshe AD, Wilson GJ, Ettema GJ. Stretch-shorten cycle compared with isometric preload: contributions to enhanced muscular performance. J Appl Physiol 1998;84:97-106.
Van Cutsem M, Duchateau J, Hainaut K. Changes in single motor unit behaviour contribute to the increase in contraction speed after dynamic training in humans. J Physiol 1998;15:295-305.
Liu Y, Schlumberger A, Wirth K, Schmidtbleicher D, Steinacker JM. Different effects on human skeletal myosin heavy chain isoform expression: strength vs. combination training. J Appl Physiol 2003;94:2282-8.
Newton RU, Kraemer WS, Hakkinen K. Effects of ballistic training on preseason preparation of elite volleyball players. Med Sci Sports Exerc 1999;31:323-30.
Toji H, Suei K, Kaneko M. Effects of combined training loads on relations among force, velocity, and power development. Can J Appl Physiol 1997;22:328-36.
