Titre du document / Document title

Habitual physical activity and peak anaerobic power in elderly women

Auteur(s) / Author(s)

KOSTKA T. ^{(1 2 3)} ; BONNEFOY M. ⁽¹⁾ ; ARSAC L. M. ⁽³⁾ ; BERTHOUZE S. E. ⁽⁴⁾ ; BELLI A. ⁽³⁾ ; LACOUR J.-R. ⁽³⁾ ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

⁽¹⁾ Service de Médecine Gériatrique, Centre Hospitalier Lyon-Sud, 69495 Pierre-Bénite, Lyon, FRANCE
⁽²⁾ Department of Preventive Medicine, Medical University, Lodz, POLOGNE
⁽³⁾ Laboratoire de Physiologie - GIP Exercice, Faculté de Médecine de Lyon-Sud, Lyon, FRANCE
⁽⁴⁾ Départment de Rééducation et Réadaptation Fonctionnelles -GIP Exercice, Faculté de Médecine, Université Jean Monnet, Saint-Etienne, FRANCE

Résumé / Abstract

The aim of this study was to investigate the relationship between maximal anaerobic power (P_max) and corresponding optimal velocity (V_opt) and habitual physical activity (PA) on the one hand and with maximal oxygen consumption (VO_max) on the other hand, in elderly women. Twenty-nine community dwelling, healthy women aged 66-82 years participated in the study. PA was evaluated using the Questionnaire d'Activité Physique Saint-Etienne (QAPSE) and expressed using two QAPSE activity indices: mean habitual daily energy expenditure (MHDEE) and daily energy expenditure corresponding to leisure time sports activities (sports activity). The subjects' P_max and V_opt were measured while they cycled on a friction-loaded non-isokinetic cycle ergometer. P_max was expressed relative to body mass [P_max/kg(W. kg^-1)], and relative to the mass of two quadriceps muscles [P_max/Quadr(W. kg^-1_Quadr)]. A negative relationship between P_max/kg (Spearman's r = -0.56; P < 0.01), P_max/Quadr (r = -0.53; P < 0.01) and V_opt (r = -0.45; P < 0.05) and age was found. P_max/kg was positively associated with MHDEE (r = 0.51; P < 0.01) and sports activity (r = 0.58; P < 0.01), as were P_max/Quadr and V_opt (r = 0.55; P < 0.01 and r = 0.54; P < 0.01, respectively). P_max/kg, P_max/Quadr and V_opt correlated positively with VO_2max. The positive relationship between ergometer measurements and PA indices was similar to that between VO_2max and PA. P_max/kg was, moreover, closely related to V_opt (r = 0.77; P < 0.001). When a multiple stepwise regression analysis was used to select the variables influencing ergometer measurements, MHDEE contributed significantly to P_max/kg variance, whereas sports activity contributed to P_max/Quadr and V_opt variances. In conclusion, the data from this cross-sectional study suggest that in healthy elderly women habitual PA, and especially leisure time PA, alleviates the decline of the P_max of the quadriceps muscles.

Revue / Journal Title

European journal of applied physiology and occupational physiology   ISSN 0301-5548   CODEN EJAPCK 

Source / Source

1997, vol. 76, n^o1, pp. 81-87 (31 ref.)

Langue / Language

Anglais

Editeur / Publisher

Springer, Berlin, ALLEMAGNE  (1973-1999) (Revue)

Mots-clés anglais / English Keywords

Senescence ; Physical exercise ; Physical training ; Bicycle ergometer ; Maximum velocity ; Quadriceps muscle ; Human ; Female ; Striated muscle ;

Mots-clés français / French Keywords

Sénescence ; Exercice physique ; Entraînement physique ; Bicyclette ergométrique ; Vitesse maximale ; Muscle quadriceps ; Homme ; Femelle ; Muscle strié ;

Mots-clés espagnols / Spanish Keywords

Senescencia ; Ejercicio físico ; Entrenamiento físico ; Bicicleta ergométrica ; Velocidad máxima ; Músculo cuadriceps ; Hombre ; Hembra ; Músculo estriado ;

Localisation / Location

INIST-CNRS, Cote INIST : 892, 35400006475686.0120