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Aerobic Capacity of Elderly Women Engaged in Controlled Physical Activity

100%

da Cunha R., de Assunção Ferreira M., Bezerra J., Guerra I., Dantas E.

Journal of Human Kinetics

2010

vol. 23

63-69

The objective of this study was to evaluate the aerobic capacity of elderly participants in the family health program at Health Municipal Secretary, who were submitted to a regular program of physical exercise. This experimental study had a sample size of 98 hypertensive elderly women. The sample was divided randomly into an experimental group (EG; n=58, age: 67±6 years) and a control group (CG; n=40; age: 70±6 years). Aerobic capacity was evaluated by a six-minute walking test (WT6). The intervention program was conducted three times a week (Monday, Wednesday and Friday), between 17:00 and 17:45 hours, with an intensity that varied from 55% to 75% of the theoretical maximum heart rate. Student's paired t-tests or Wilcoxon tests were utilised in the intra-group analysis (for homogenous or heterogeneous distributions of the data, respectively). An ANOVA two-way parametric test was used to evaluate the inter-group data followed by the Scheffe post hoc test. A value of p<0.05 was adopted for statistical significance. The results revealed an increase in distance travelled in the EG in the post-test relative to the pretest (Δ= 70.58 m; p<0.0001) and relative to the CG post-test (Δ= 116.58 m; p<0.0001). Furthermore, the CG travelled less distance in the post-test than in the pre-test (Δ= -0.78 m; p=0.003). Therefore, we infer that a walking regimen of controlled intensity improves the distance travelled by elderly women in the WT6 by increasing their aerobic capacity.

The Acute Effect of Resistance Exercise with Blood Flow Restriction with Hemodynamic Variables on Hypertensive Subjects

86%

Araújo J. P., Silva E. D., Silva J. C. G., Souza T. S. P., Lima E. O., Guerra I., Sousa M. S. C.

Journal of Human Kinetics

2014

vol. 43

issue 1

79-85

The purpose of this study was to analyze systolic blood pressure (SBP), diastolic blood pressure (DBP) and the heart rate (HR) before, during and after training at moderate intensity (MI, 50%-1RM) and at low intensity with blood flow restriction (LIBFR). In a randomized controlled trial study, 14 subjects (average age 45±9,9 years) performed one of the exercise protocols during two separate visits to the laboratory. SBP, DBP and HR measurements were collected prior to the start of the set and 15, 30, 45 and 60 minutes after knee extension exercises. Repeated measures of analysis of variance (ANOVA) were used to identify significant variables (2 x 5; group x time). The results demonstrated a significant reduction in SBP in the LIBFR group. These results provide evidence that strength training performed acutely alters hemodynamic variables. However, training with blood flow restriction is more efficient in reducing blood pressure in hypertensive individuals than training with moderate intensity.

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2 Journal of Human Kinetics

1 2014

1 2010

2 Guerra I.

1 Araújo J. P.

1 Bezerra J.

1 Dantas E.

1 Lima E. O.

1 Silva E. D.

1 Silva J. C. G.

1 Sousa M. S. C.

1 Souza T. S. P.

1 da Cunha R.

1 de Assunção Ferreira M.

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Aerobic Capacity of Elderly Women Engaged in Controlled Physical Activity

The Acute Effect of Resistance Exercise with Blood Flow Restriction with Hemodynamic Variables on Hypertensive Subjects