Heart rate recovery and variability following combined aerobic and resistance exercise training in adults with and without Down syndrome

2013 ◽  
Vol 34 (1) ◽  
pp. 353-361 ◽  
Author(s):  
Goncalo V. Mendonca ◽  
Fernando D. Pereira ◽  
Bo Fernhall
Keyword(s):  
Heart Rate ◽  
Down Syndrome ◽  
Exercise Training ◽  
Resistance Exercise ◽  
Heart Rate Recovery ◽  
Resistance Exercise Training

Heart rate recovery and heart rate complexity following resistance exercise training and detraining in young men

2007 ◽  
Vol 293 (5) ◽  
pp. H3180-H3186 ◽  
Author(s):  
Kevin S. Heffernan ◽  
Christopher A. Fahs ◽  
Kevin K. Shinsako ◽  
Sae Young Jae ◽  
Bo Fernhall
Keyword(s):  
Heart Rate ◽  
Resistance Training ◽  
Exercise Training ◽  
Resistance Exercise ◽  
Heart Rate Recovery ◽  
Young Men ◽  
Spectral Measures ◽  
Resistance Exercise Training ◽  
Time Control ◽  
Heart Rate Complexity

The purpose of this study was to examine heart rate recovery (HRR) and linear/nonlinear heart rate variability (HRV) before and after resistance training. Fourteen young men (25.0 ± 1.1 yr of age) completed a crossover design consisting of a 4-wk time-control period, 6 wk of resistance training (3 days/wk), and 4 wk of detraining. Linear HRV was spectrally decomposed using an autoregressive approach. Nonlinear dynamics of heart rate complexity included sample entropy (SampEn) and Lempel-Ziv entropy (LZEn). HRR was calculated from a graded maximal exercise test as maximal heart rate attained during the test minus heart rate at 1 min after exercise (HRR). There was no change in SampEn, LZEn, or HRR after the time-control portion of the study ( P > 0.05). SampEn ( P < 0.05), LZEn ( P < 0.05), and HRR ( P < 0.05) increased after resistance training and returned to pretraining values after detraining. There was no change in spectral measures of HRV at any time point ( P > 0.05). These findings suggest that resistance exercise training increases heart rate complexity and HRR after exercise but has no effect on spectral measures of HRV in young healthy men. These autonomic changes regress shortly after cessation of training.

scholarly journals Resistance exercise training improves heart rate variability in women with fibromyalgia

2007 ◽  
Vol 0 (0) ◽  
pp. 071116232005001-??? ◽  
Author(s):  
Arturo Figueroa ◽  
J. Derek Kingsley ◽  
Victor McMillan ◽  
Lynn B. Panton
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Exercise Training ◽  
Resistance Exercise ◽  
Resistance Exercise Training

Fractal scaling properties of heart rate dynamics following resistance exercise training

2008 ◽  
Vol 105 (1) ◽  
pp. 109-113 ◽  
Author(s):  
Kevin S. Heffernan ◽  
Jacob J. Sosnoff ◽  
Christopher A. Fahs ◽  
Kevin K. Shinsako ◽  
Sae Young Jae ◽  
...  
Keyword(s):  
Heart Rate ◽  
Exercise Training ◽  
Resistance Exercise ◽  
Control Period ◽  
Fluctuation Analysis ◽  
Scaling Exponent ◽  
Resistance Exercise Training ◽  
Time Control ◽  
Fractal Properties ◽  
Correlation Properties

With aging and disease, there is a breakdown of the natural fractal-like organization of heart rate (HR). Fractal-like correlation properties of HR can be assessed with detrended fluctuation analysis (DFA). A short-time scaling exponent (αs) value of 1 is associated with healthy HR dynamics, whereas values that deviate away from 1, in either direction, indicate fractal collapse. The purpose of this study was to examine the effect of resistance exercise training (RT) on fractal correlation properties of HR dynamics. Resting ECG was collected at baseline, following a 4-wk time control period and 6 wk of RT (3 days per wk) in 34 men (23 ± 1 years of age). Fractal properties of HR were assessed with DFA. There was no change in αs following either the time control period or RT (1.01 ± 0.06 to 0.98 ± 0.06 to 0.93 ± 0.04, P > 0.05). Given the potential bidirectional nature of fractal collapse, subjects were retrospectively separated into two groups (higher αs and lower αs) on the basis of the initial αs by using cluster analysis. An interaction was detected for αs following RT ( P < 0.05). There was no change in αs in either group following the time control, but αs increased following RT in the lower αs group ( n = 18; 0.73 ± 0.04 to 0.69 ± 0.04 to 0.88 ± 0.04) and αs decreased following RT in the higher αs group ( n = 16; 1.20 ± 0.04 to 1.24 ± 0.04 to 0.98 ± 0.04). In conclusion, RT improves fractal properties of HR dynamics.

scholarly journals Type 2 Diabetes Reduces the Muscle Anabolic Effect of Resistance Exercise Training in Older Adults

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 529-529
Author(s):  
Amanda Randolph ◽  
Tatiana Moro ◽  
Adetutu Odejimi ◽  
Blake Rasmussen ◽  
Elena Volpi
Keyword(s):  
Type 2 Diabetes ◽  
Older Adults ◽  
Muscle Strength ◽  
Exercise Training ◽  
Resistance Exercise ◽  
Lean Mass ◽  
Synthesis Rate ◽  
Resistance Exercise Training ◽  
Appendicular Lean Mass

Abstract Type 2 Diabetes Mellitus (T2DM) accelerates the incidence and increases the prevalence of sarcopenia in older adults. This suggests an urgent need for identifying effective sarcopenia treatments for older adults with T2DM. It is unknown whether traditional approaches, such as progressive resistance exercise training (PRET), can effectively counteract sarcopenia in older patients with T2DM. To test the efficacy of PRET for the treatment of sarcopenia in older adults with T2DM, 30 subjects (15 T2DM and 15 age- and sex- matched controls) underwent metabolic testing with muscle biopsies before and after a 13-week full-body PRET program. Primary outcome measures included changes in appendicular lean mass, muscle strength, and mixed muscle fractional synthesis rate (FSR). Before PRET, BMI-adjusted appendicular lean mass was significantly lower in the T2DM group (0.7095±0.0381 versus 0.8151±0.0439, p&lt;0.0001). As a result of PRET, appendicular lean mass adjusted for BMI and muscle strength increased significantly in both groups, but to a lesser extent for the T2DM group (p=0.0009) . Preliminary results for FSR (n=25) indicate that subjects with T2DM had lower basal FSR prior to PRET (p=0.0197) . Basal FSR increased significantly in the control group after PRET (p=0.0196), while it did not change in the T2DM group (p=0.3537). These results suggest that in older adults the positive effect of PRET on muscle anabolism and strength is reduced by T2DM . Thus, older adults with T2DM may require more intensive, multimodal and targeted sarcopenia treatment. Funded by NIH R01AG049611 and P30AG024832.

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