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THE JOURNAL OF SPORTS MEDICINE AND PHYSICAL FITNESS
A Journal on Applied Physiology, Biomechanics, Preventive Medicine,
Sports Medicine and Traumatology, Sports Psychology
Indexed/Abstracted in: Chemical Abstracts, CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 1,111
Original articles AGEING
The Journal of Sports Medicine and Physical Fitness 2004 March;44(1):87-91
Neuromuscular effects of three training methods in ageing women
Paillard T. 1, 2, Lafont C. 2, Soulat J. M. 3, Costes-Salon M. C. 2, Mario B. 1, Montoya R. 1, Dupui P. 1
1 Department of Physiology, School of Medicine Rangueil University Hospital, Toulouse, France
2 Department of Gerontology and Internal Medicine Purpan University Hospital, Toulouse, France
3 Department of Work Pathology, Purpan University Hospital, Toulouse, France
Aim. The present study aimed to compare the effects of 3 strength development methods on muscular mass and muscular strength in healthy ageing women.
Methods. Thirty-two healthy women, 62 to 75 years old were randomised into 3 groups. The 3 groups performed 4 sessions a week of strength development for 6 weeks. The 1st group (SC) climbed up and down 300 stairs per session. The 2nd group (ES) followed an electrostimulation programme on the quadriceps muscles. The 3rd group (SC+ES) combined stair climbing with electrostimulation. Before and after the 3 programmes, the muscular mass of the leg was assessed using a biphotonic absorptiometry machine. Isometric (angle 20° and 100°) and isokinetic (60°/s and 240°/s) knee extension torque was measured using an isokinetic dynamometer.
Results. None of the programmes changed the muscular mass. All 3 groups increased isometric (angle 20°, p<0.001; angle 100°, p<0.003) and isokinetic (60°/s, p<0.0001; 240°/s, p<0.0001) knee extension torque. None of the programmes appeared more efficient than the others for muscular mass or muscular strength.
Conclusion. Six weeks of activity (SC, ES or SC+ES) improved the isometric and dynamic muscular strength in ageing healthy women. However, this period was too short to change the muscular mass. None of the activities presented a real advantage over the others in ageing women.