Influence of resistance exercise volume on recovery energy expenditure in women
4
Citation
18
Reference
10
Related Paper
Citation Trend
Abstract:
Abstract The acute effects of resistance exercise on energy expenditure in the post‐exercise period have not been well studied in women, even though they are at high risk for weight gain and so would benefit greatly from exercise‐related increases in energy expenditure. The purpose of this study was to identify factors that influence recovery energy expenditure in women after an acute bout of resistance exercise. Seventeen healthy women aged 40–55 years completed an acute bout of resistance exercise followed by measurement of energy expenditure for 120 min of recovery. Body composition was measured via air displacement plethysmography. The resistance exercise bout consisted of three sets of 8–12 repetitions of eight exercises at 50% of one‐repetition maximum (1‐RM) for the first set and 80% 1‐RM for the second and third sets. Oxygen consumption ( V O 2 ) was measured before and for 120 min after resistance exercise. Post‐exercise energy expenditure data were analysed as 4‐min means at 0, 20, 40, 60, 90, and 120 min of recovery. Mean (± s x ) training volume was 7604.1±450.64 kg and overall mean recovery energy expenditure was 133±6 kcal. Pearson's correlation analysis found no significant relationship between post‐exercise energy expenditure and age, body mass index, exercise time or delay between cessation of exercise and commencement of metabolic measurement. Absolute (kg) lean mass was also not significantly related to energy expenditure at any time post‐exercise, although relative (%) lean mass was during the late recovery period only (40 min of recovery: r = 0.49, P = 0.05; 60 min: r = 0.51, P = 0.04; 90 min: r = 0.63, P < 0.01). The factor most consistently related to post‐exercise energy expenditure was total exercise volume, which had a moderately strong relationship through 90 min of the recovery period (0 min of recovery: r =0.49. P = 0.05; 20 min: r = 0.52, P = 0.03; 40 min: r = 0.53, P = 0.03; 60 min: r = 0.50, P = 0.04; 90 min: r =0.48, P = 0.05). In the present sample of women, acute post‐exercise energy expenditure was influenced primarily by total training volume, although lean mass had a limited effect. Based on these findings, it is recommended that women be encouraged to lift at higher intensities (70–80% 1‐RM) to maximize post‐exercise energy expenditure and potentially promote fat loss.Keywords:
Plethysmograph
As a functional test of blood circulation, either electrocardiography or phonocardiography are essential in daily clinic. On the other hand, a plethysmography is not carried out so frequenfly, because either techniques or interpretation of results in the plethysmography differ with the examiner. In a series of the present experiment, it was planned to standardize the plethysmography as a method for examining a function of peripheral blood circulation. In the first section, experiments were performed to standardize the technique in the plethysmography.1. In a series of the experiment, a reflexion photoelectric plethysmograph was used because it was easy to handle comparing with other methods of the plethysmograph.2. A wave form of a plethysmogram was modified its shape due to a low frequency cut of the plethysmograph. If a time constant of the apparatus is over 2sec, however, the change was insignificant.3. An amplitude as well as a wave form of the plethysmogram was markedly changed due to compression a skin surface beneath the plethysmograph. It was discussed, therefore, that the plethysmograph must be attached to the skin with the pressure by which the plethysmogram showed its maximum amplitude.
Plethysmograph
Photoplethysmogram
Blood circulation
Cite
Citations (0)
29 patients with arterial disease of the limbs were examined by the pulse plethysmograph and a water-filled plethysmograph, to evaluate the ability of different plethysmographic parameters to discriminate between different degrees of arterial disease, classified by arteriography. The best pulse plethys mographic parameter had a discriminatory efficiency as good as, or better than, the best water plethysmographic one. Advantages and limitations of pulse plethysmography in routine diagnostics are discussed.
Plethysmograph
Cite
Citations (8)
Many people assume that resistance training has different effects on males and females with regard to muscle mass gain. The difference in serum testosterone is often cited as an explanation. However, studies examining relative muscle gain with resistance training have not been well established. The purpose of this study is to examine the relative muscle mass gain with resistance training between men and women. We examined lean mass gain in 201 men and women in three different studies. Subjects in these studies performed a standard progressive resistance training program for 10 or 12 weeks. Lean mass was measured before and after training. Both men and women in these 3 studies showed significant increases in muscle mass after resistance training. In the 18‐30 year old, 10 week study, men gained 2.9±0.4% (N=74) while women gained 2.6±0.5% (N=43, P=0.72). In the 60‐69 year old, 12 week study, men gained 1.9±0.6% (N=18) while women gained 1.9±0.5% (N=31, P=0.95). In the 50‐69 year old, 12 week study, men gained 3.6±0.8% (N=14) while women gained 4.0±0.6% (N=21, P=0.74). Across all studies percent change of lean mass did not show a significant difference between genders. These results suggest that lean mass gain with resistance training is more dependent of starting lean mass than gender.
Strength Training
Cite
Citations (0)
High body mass index (BMI) is known to be associated with elevated blood pressure (BP). The present study aims to determine the relative importance of the two components of BMI, fat mass and lean body mass index, on BP levels. We assessed body composition with bioimpedance and performed 24 hour ambulatory BP measurements in 534 individuals (mean age 61 ± 3 years) who had no cardiovascular medication. Fat mass index and lean mass index were calculated analogously to BMI as fat mass or lean body mass (kg) divided by the square of height (m2). Both fat mass index and lean mass index showed a positive, small to moderate relationship with all 24 hour BP components independently of age, sex, smoking, and leisure-time physical activity. There were no interaction effects between fat mass index and lean mass index on the mean BP levels. Adult lean body mass is a significant determinant of BP levels with an equal, albeit small to moderate magnitude as fat mass. Relatively high amount of muscle mass may not be beneficial to cardiovascular health.
Body volume index
Mass index
Body adiposity index
Cite
Citations (37)
Plethysmograph
Photoplethysmogram
Cite
Citations (1)
Cite
Citations (0)
Blood flow measurements using either a strain gauge plethysmograph or the Dohn air-filled plethysmograph were compared by means of successive measurements in the calf in six normal subjects (12 extremities) and in five patients with arterial insufficiency (nine extremities). Flows were recorded during rest as well as after 5 minutes of ischemia. The strain-gauge plethysmograph tended to give lower values than the Dohn plethysmograph, although at higher flow rates the results were identical. It is concluded that, for most purposes, the Dohn plethysmograph can be replaced by the strain gauge plethysmograph, which is considerably simpler to use.
Plethysmograph
Strain gauge
Strain (injury)
Cite
Citations (10)
Abstract Franco, CMC, Carneiro, MAS, de Sousa, JFR, Gomes, GK, and Orsatti, FL. Influence of high- and low-frequency resistance training on lean body mass and muscle strength gains in untrained men. J Strength Cond Res 35(8): 2089–2094, 2021—The aim of this study was to investigate whether high-frequency resistance training (HFRT) performs better in lean body mass (LBM) and muscle strength gains when compared with low-frequency resistance training (LFRT). Eighteen untrained males (height: 1.76 ± 0.05 m, body mass: 78.3 ± 13.5 kg, and age: 22.1 ± 2.2 years) were randomly allocated into HFRT ( n = 9) and LFRT ( n = 9). Muscle strength {1 repetition maximum (RM) (bench press [BP] and unilateral leg extension [LE])} and LBM (DXA) were assessed at before and after 8 weeks of training. Both groups performed 7 whole-body resistance exercises, standardized to 10 sets per week, 8–12 maximal repetitions, and 90–120 seconds of rest in a 5-day resistance training routine. The LFRT performed a split-body routine, training each specific muscle group once a week. The HFRT performed a total-body routine, training all muscle groups every session and progressed from a training frequency of once per week to a training frequency of 5 times per week. Lean body mass increased without differences between groups (HFRT = 1.0 kg vs. LFRT = 1.5 kg; p = 0.377). Similarly, 1RM increased without differences between groups (right LE, HFRT = 21.2 kg vs. LFRT = 19.7 kg, p = 0.782; BP, HFRT = 7.1 kg vs. LFRT = 4.5 kg, p = 0.293). These findings suggest that in young untrained men, progressing from a training frequency of once per week to a training frequency of 5 times per week with equated volume produces similar gains in LBM and muscle strength as a constant training frequency of once per week, over an 8-week training period.
Bench press
Leg press
Strength Training
One-repetition maximum
Cite
Citations (8)
Summary. The helium dilution method is known to underestimate the total lung capacity (TLC) in patients with poorly or non‐ventilated areas in the lungs. The standard plethysmographic method has been reported to overestimate TLC in patients with severe airway obstruction. To determine the magnitude of the difference between the two methods, a comparison was made in different patient groups. In a group of patients with normal lung function tests ( n = 20) there was a small but significant average difference in TLC between plethysmography and the helium dilution method, the larger values being obtained with the latter. In patient groups with moderately obstructed airways ( n = 23), severely obstructed airways ( n = 20), or emphysema ( n = 19), there were no significant average differences, although in two patients in the emphysema group the plethysmographic values were considerably larger than those obtained by helium dilution. We conclude that the gas dilution methods and plethysmography with a pressure‐compensated volume displacement plethysmograph gave estimates of TLC which agreed even in patients with airway obstruction or emphysema, except in patients with very severe lung disease.
Plethysmograph
Dilution
Cite
Citations (15)
Normal values for flow and volume pulsations in the calves of 41 healthy subjects aged 40–70 years were obtained with an air-filled plethysmograph provided with a pneumotachograph as a sensing device (pulse plethysmo graph). The influence on the flow and volume pulsations measured of different conditions of stasis applied to the examined limb and of age, heart rate, and blood pressure of the subject was investigated. Used as a venous occlusion plethysmograph the pulse plethysmograph gave about the same perfusion value as a water-filled plethysmograph.
Plethysmograph
Pulse pressure
Cite
Citations (10)