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[en] Objectives: To investigate the cardiovascular responses to standard static assessments of strength and endurance of trunk extensor muscles.
Methods: Trunk extensor performances of ten healthy men, 48.2±5.6 years, and 10 healthy women, 49±5.7 years, were assessed by means of a maximum static strength test [consisting in maximal voluntary contractions [MVC] performed with a specific dynamometer], and two static endurance tests [the Sorensen test, and a 50 percent MVC test]. Heart rate [HR], auscultatory systolic [SBP], and diastolic blood pressure [DBP] were recorded throughout the tests.
Results: The MVCs induced significant increases of HR and SBP [mean peak values averaging 90 [female] to 95 [male] beats per minute and 133 [female] to 141 [male] mmHg]. The HR, SBP, and DBP values increased significantly across time throughout both endurance static tests. At the end of these tests, mean HR, SBP, and DBP reached 114 to 122 beats per minute, 172 to 185 mmHg, and 112 to 120 mmHg. Genders differed significantly with regard to holding times [longer in females], but a gender effect was only found on SBP [higher in males]. Heart rate and SBP increases were significantly higher in males than in female subjects.
Conclusions: The strength test seems less demanding than expected, though our results need to be confirmed. Standard static endurance tests yield sizeable functional stress on the cardiovascular system. Our study emphasizes the need to exclude subjects with cardiac trouble from such efforts and suggests the relevance of monitoring cardiovascular parameters if tests are performed until exhaustion.
Disciplines :
Orthopedics, rehabilitation & sports medicine
Author, co-author :
Demoulin, Christophe ; Université de Liège - ULiège > Département des sciences de la motricité > Kinésithérapie spécifique et réadaptation motrice
Grosdent, Stéphanie ; Centre Hospitalier Universitaire de Liège - CHU > Centre de la Douleur - Médecine de l'appareil locomoteur
Bury, Thierry ; Université de Liège - ULiège > Département des sciences de la motricité > Physiologie humaine et physiologie de l'effort physique
Croisier, Jean-Louis ; Université de Liège - ULiège > Département des sciences de la motricité > Kinésithérapie générale et réadaptation
Maquet, Didier ; Université de Liège - ULiège > Département des sciences de la motricité > Département des sciences de la motricité
Lehance, Cédric ; 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 - Médecine physique et réadaptation fonctionnelle
Vanderthommen, Marc ; Université de Liège - ULiège > Département des sciences de la motricité > Kinésithérapie spécifique et réadaptation motrice
Language :
English
Title :
Cardiovascular Responses to Static Assessments of Trunk Muscles
Publication date :
2009
Journal title :
Journal of Musculoskeletal Pain
ISSN :
1058-2452
eISSN :
1540-7012
Publisher :
Haworth Press, Binghamton, United States - New York
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