[en] Electrical stimulation (ES) and voluntary contraction (VC) were compared in the quadriceps muscle of ten male volunteers. In both modes, a workload corresponding to 20% of maximal voluntary contraction was applied during 64 isometric contraction (5.5 s)-relaxation (5.5 s) cycles. The protocols were performed in a 1.5 T whole-body magnet. The Pi/PCr ratio and the intracellular pH (pHi) were monitored by 31P NMR spectroscopy during baseline, exercise and recovery periods, in a superficial region of the vastus medialis. During baseline, the Pi/PCr ratio (0.12 vs. 0.10) and the pHi (7.01 vs. 7.00) were comparable in both conditions. During exercise, the Pi/PCr ratio was higher (0.36 vs. 0.14) and the pHi was lower (6.85 vs. 7.07) during ES than during VC. For the same external work production, these results reflect a different metabolic solicitation in the ES quadriceps than in the VC ones.
Disciplines :
Orthopedics, rehabilitation & sports medicine
Author, co-author :
Vanderthommen, Marc ; Université de Liège - ULiège > Département des sciences de la motricité > Kinésithérapie spécifique et réadaptation motrice
Chance B, Leigh JS, Kent J, McCulIy K, Nioka S, Clark BJ, Maris JM, Graham T. Multiple controls of oxidative metabolism in living tissue as studied by phosphorus magnetic resonance. Proc Natl Acad Sci USA 1986; 83: 9458-62
Duchateau J, De Montigny L, Hainaut K. Differential effects of training by electrostimulation and by voluntary contractions. Arch Int Physiol Biochem 1988; 96: 11-2
Enoka RM. Muscle strength and its development: New perspectives. Sports Med 1988; 6: 146-68
Erikkson E, Häggmark T. Comparison of isometric muscle training and electrical stimulation supplementing isometric muscle training in the recovery after major knee ligament surgery. Am J Sports Med 1979; 7: 169-71
Erikkson E, Häggmark T, Kiessling KH, Karlsson J. Effect of electrical stimulation on human skeletal muscle. Int J Sports Med 1981; 2: 18-22
Helpern JA, Kao W, Gross B, Kensoro TG, Welch KMA. Interleaved 31P NMR with transcutaneous nerve stimulation (TNS): A method of monitoring compliance - independent skeletal muscle metabolic response to exercise. Magn Reson Med 1989; 10:50-6
Kramer JF, Mendryk SW. Electrical stimulation as a strength improvement technique: A review. J Orthop Sports Phys Ther 1982; 4: 91-8
Lai HS, De Domenico G, Stauss G. The effect of different electromotor stimulation training intensities and strength improvement. Austr J Physiother 1988; 34: 151-64
Lambert H, De Bisschop F, De Mey G, De Cuyper H, Demurie S, Vanderstraeten G, Blonde W. Calculation of electric current distribution in tissue. Eur J Phys Ther 1991; 1: 123-32
Levy M, Kushnir T, Mizrahi J, Itzchak Y. In vivo 31P NMR studies of paraplegic's muscles activated by functional electrical stimulation. Magn Reson Med 1993; 29: 53-8
Matheson GO, McKenzie DC, Gheorghiu D, Ellinger DC, Quinney HA, Allen PS. 31P NMR of electrically stimulated rectus femoris muscle: an in vivo graded exercise model. Magn Res Med 1992; 26: 60-70
Miller C, Thepaut-Mathieu C. Strength training by electrostimulation condition for efficacy. Int J Sports Med 1993; 14: 20-8
Miller RG, Boska MD, Moussavi RS, Carson PJ, Weiner MW. 31P nuclear magnetic resonance studies of high energy phosphates and pH in human muscle fatigue. J Clin Invest 1988; 81: 1190-6
Milner-Brown HS, Stein RB, Yemm R. The orderly recruitement of human motor units during voluntary isometric contractions. J Physiol 1973; 230: 359-70
Newsholme EA, Leech AR. Biochemistry for the Medical Sciences, New York, John Willey and sons, 1983
Park JH, Brown RL, Park CR, Cohn M, Chance B. Energy metabolism of untrained muscle of elite runners as observed by 31P magnetic resonance spectroscopy: evidence suggesting a genetic endowment for endurance exercise. Proc Natl Acad Sci USA 1988; 85: 8780-4
Sahlin K, Harris RC, Nylind B, Hultman E. Lactate content and pH in muscle samples obtained after dynamic exercise. Pflugers Arch 1976; 374: 193-8
Shenton DW, Heppenstall RB, Chance B, Glasgow SC, Schnall MD, Sapega AA. Electrical stimulation of human muscle studied using 31P nuclear magnetic resonance spectroscopy. J Orthop Res 1986; 4: 204-11
Taylor DJ, Bore PJ, Styles P, Gadian DG, Radda GK. Bioenergetics of intact human muscle. A 31P nuclear magnetic resonance study. Mol Biol Med 1983; 1: 77-94
Vanderthommen M, Cohnen A, Crielaard JM. Intérêt de l'électromyostimulation de basse fréquence dans le cadre d'un alitement prolongé. In: Pelissier J, Roques CF (eds). Electrostimulation des Nerfs et des Muscles. Paris, Masson, 1992; 62-6
Vanderthommen M, Constant T, Crielaard JM. La rééducation du quadriceps: intérêt de l'électromyostimulation de basse fréquence après arthroscopie du genou. Kinésithérapie Scientifique 1992; 308: 21-2
Vanderthommen M, Depresseux JC, Bauvir P, Degueldre C, Delfiore G, Peters JM, Sluse F, Crielaard JM. A positron emission tomography study of voluntarily and electrically contracted human quadriceps. Muscle Nerve 1997; 20: 505-7
Vanderthommen M, Kelleter B, Crielaard JM. Détermination de la fréquence de stimulation produisant la contraction tétanique maximale du quadriceps fémoral. In: Pelissier J, Roques CF (eds). Electrostimuation des Nerfs et des Muscles. Paris, Masson, 1992: 33-7
William JG, Street M. Sequential faradism in quadriceps rehabilitation. Physiother 1976; 62: 252-4
