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:: Volume 7, Issue 3 (Fall 2009) ::
jmj 2009, 7(3): 21-29 Back to browse issues page
The effect of MCKENZIES exercises on Cardiovascular responses in khatam al_Anbia hospital personals in Zahedan
AhmadReza Askary Ashtiyani *, Masood Rodbari, Mohammadhasan Rahmani
Abstract:   (4134 Views)

Introduction: Repetitive exercises of the type recommended by McKenzie for the lumbar spine , such as flexion and extension exercises in standing ( FIS and EIS ) and lying positions ( FIL and EIL ) , have been used in the management of low back pain for 20 years . The Cardiovascular responses of exercises that performed in a lying position are well known. Therefore , the purpose of this study was to examine the Cardiovascular effects of 4 exercises used in the Mckenzie system.

Materials and Methods:For this control trial ( before and after ) study 72 subjects without cardiovascular or cardiopulmonary disease and who were representative of people susceptible to low back pain were studied . 36 men and 36 women divided three groups ( low fat , normal ,high fat ) after determined BMI . Everyone performed 4 exercises in 4 days . Subjects performed sets of 10 , 15 and 20 repetitions of the assigned exercise , with a 20 minute rest between sets . Heart Rate , Blood Pressure , and rate-pressure product ( an index of myocardial work ) were recorded before and after each set of repetitions.

Results . After 10 repetitions , flexion and extension in lying were more hemodynamically demanding than in standing . This trend persisted for 15 and 20 repetitions , however , at 20 repetitions the hemodynamic demands were different across exercise groups ( ie , FIL > EIL > FIS > EIS ) . Hemodynamically demanding were more in men due to women  and also in high fat and due to normal and low fat ( ie:high fat>normal>low fat)

  Discussion and conclusion . Repetitive exercises of the type suggested by McKenzie for the lumbar spine can have hemodynamic effects in people with no cardiovascular or cardiopulmonary conditions . These effects may be important with respect to cardiac work , and patients for whom these exercises are indicated should have a cardiac and pulmonary risk factor assessment to determine whether heart rate and blood pressure should be monitored 

Keywords: Mckenzie exercises, Blood Pressure, Heart Rate, RPP, Repetitions
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Type of Study: Research | Subject: ect
Received: 2016/06/8 | Revised: 2018/03/4 | Accepted: 2016/06/8
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Askary Ashtiyani A, Rodbari M, Rahmani M. The effect of MCKENZIES exercises on Cardiovascular responses in khatam al_Anbia hospital personals in Zahedan. jmj 2009; 7 (3) :21-29
URL: http://jmj.jums.ac.ir/article-1-756-en.html

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Volume 7, Issue 3 (Fall 2009) Back to browse issues page
فصلنامه دانشگاه علوم پزشکی جهرم Journal of Jahrom University of Medical Sciences
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