Hand-Held Dynamometry to Safely Measure Muscle Strength in Patients In Intensive Care

Background: Intensive care unit-acquired weakness (ICU-AW) has been increasingly studied and associated with prognostic factors of negative outcomes during the hospitalization of critically ill patients. Therefore, it is essential to evaluate the muscle strength of patients in the intensive care unit (ICU) with accurate quantitative tools, such as the hand-held dynamometer (HHD), which directly measures the strength of large muscle groups, providing earlier and more accurate decision making. The objective of the present study was to evaluate the safety of using HHD to measure the strength of large muscle groups in ICU patients, in addition to determining the prevalence of muscle imbalance in these patients, and correlating HHD measures with the Medical Research Council (MRC) scale. Methods: A cross-sectional study was conducted, inferring the impact of strength measurement of the main muscle groups using HHD on vital signs, dyspnea, and pain. The occurrence of adverse events during the evaluation was also observed. Safety was assessed using the paired t-test, calculating the prevalence of muscle imbalance in the sample and Pearson’s correlation between the strength measurement instruments. Results: The sample consisted of 46 volunteers, and no clinically significant variability was observed for pre- and post-safety variables. A high prevalence of muscle imbalance was found in the sample, and there was a strong correlation between HHD and MRC. Discussion: Strength measurement using HHD in the ICU is safe and well-tolerated, providing information on the individual condition of large muscle groups and improving the ability to diagnose muscle imbalance in the ICU patients.

The Effects of Moderate Intensity Treadmill Exercise with Gradual Increase of Speed and Inclination on VO2max in Men with Type 2 Diabetes Mellitus

Background: The American College of Sport Medicine (ACSM) recommends cardiorespiratory fitness training in people with diabetes mellitus (DM) for 3-7 days a week, total duration 150 minutes a week with moderate intensity using large muscle groups. Treadmill training is the best cardiorespiratory fitness training because it involves large muscle group compared to static cycle and arm crank.Aim: To determine the effect of moderate intensity treadmill exercise with gradual increase of speed and inclination on VO2max in men with T2DM.Material and Methods: Randomized group design in 22 men with T2DM, suitable with inclusion criteria was divided into 2 groups, the experimental and control group. The experimental group received moderate intensity treadmill exercise, 3 times a week with gradual increase of speed and inclination for 4 weeks. The control group underwent standard therapy. Measurement of VO2max was performed before and after program in both groups.Results: A significant increase of VO2max in the experimental group (p = 0.003). Compared to the control group, alteration of VO2max also significant among the experimental group (p = 0.000).Conclusion: Moderate intensity treadmill exercise with gradual increase on speed and inclination for 4 weeks increase VO2max in men with T2DM.

Muscle Oxygenation, Neural, and Cardiovascular Responses to Isometric and Workload-matched Dynamic Resistance Exercise

Differences in blood flow patterns and energy cost between isometric and dynamic resistance exercise may result to variant cardiovascular, neural, and muscle metabolic responses. We aimed to compare the cardiovascular, baroreceptor sensitivity, and muscle oxygenation responses between workload-matched, large muscle-mass isometric and dynamic resistance exercises. Twenty-four young men performed an isometric and a dynamic double leg-press protocol (4 sets×2 min) with similar tension time index (workload). Beat-by-beat hemodynamics, baroreceptor sensitivity, muscle oxygenation, and blood lactate were assessed. The increase in blood pressure was greater (p<0.05) in the 1st set during dynamic than isometric exercise (by ~4.5 mmHg), not different in the 2nd and 3rd sets, and greater in the 4th set during isometric exercise (by ~5 mmHg). Dynamic resistance exercise evoked a greater increase in heart rate, stroke volume, cardiac output, and contractility index (p<0.05), and a greater decline in peripheral resistance, baroreceptor sensitivity, and cardiac function indices than isometric exercise (p<0.05). Participants exhibited a greater reduction in muscle oxyhemoglobin and a greater increase in muscle deoxyhemoglobin in dynamic versus isometric exercise (p<0.001–0.05), with no differences in total hemoglobin and blood lactate. In conclusion, large muscle-mass, multiple-set isometric exercise elicits a relatively similar blood pressure but blunted cardiovascular and baroreceptor sensitivity responses compared to workload-matched dynamic resistance exercise. Differences in blood pressure responses between protocols appear small (~5 mmHg) and are affected by the number of sets. The muscle oxidative stimulus is greater during dynamic resistance exercise than workload-matched isometric exercise.

Effect of small vs large muscle mass endurance training on maximal oxygen uptake in organ transplanted recipients

Maximal oxygen consumption (V̇O2max) is impaired in heart (HTx), kidney (KTx), and liver (LTx) transplanted recipients and the contribution of the cardiovascular, central, and peripheral (muscular) factors in affecting V̇O2max improvement after endurance training (ET) has never been quantified in these patients. ET protocols involving single leg cycling (SL) elicit larger improvements of the peripheral factors affecting O2 diffusion and utilization than the double leg (DL) cycling ET. Therefore, this study aimed to compare the effects of SL-ET vs DL-ET on V̇O2max. We determined the DL-V̇O2max and maximal cardiac output before and after 24 SL-ET vs DL-ET sessions on 33 patients (HTx = 13, KTx = 11 and LTx = 9). The DL-V̇O2max increased by 13.8% ± 8.7 (p < 0.001) following the SL-ET, due to a larger maximal O2 systemic extraction; meanwhile, V̇O2max in DL-ET increased by 18.6% ± 12.7 (p < 0.001) because of concomitant central and peripheral adaptations. We speculate that in transplanted recipients, SL-ET is as effective as DL-ET to improve V̇O2max and that the impaired peripheral O2 extraction and/or utilization play an important role in limiting V̇O2max in these types of patients. Novelty: SL-ET increases V̇O2max in transplanted recipients because of improved peripheral O2 extraction and/or utilization. SL-ET is as successful as DL-ET to improve the cardiorespiratory fitness in transplanted recipients. The model of V̇O2max limitation indicates the peripheral factors as a remarkable limitation to the V̇O2max in these patients.

Tendons and ligaments of the Rangifer tarandus metapodial and hoof

Rangifer tarandus, the northern species including both reindeer and caribou, is a pillar of northern ecosystems and the lives of northern peoples. As the only domestic cervid, reindeer are important not only to the herders and hunters who presently interact with them, but also to zooarchaeologists and palaeontologists tracing their histories. Unfortunately, limited anatomical information on Rangifer tarandus muscles is available beyond descriptions of the large muscle groups. The lower limb and hoof in particular is poorly documented. This is problematic, as this important body part has the potential to be informative in zooarchaeological analyses of habitual activity, especially in regards to historical animal health, movement, and habitual activity. Better understanding of the hoof can additionally be useful to herders and veterinarians seeking to provide veterinary care for living animals. This study has used dissections and comparisons of the reindeer hoof with other domestic ungulates to document both the common and unique structures in Rangifer tarandus hooves, including the presence and attachment points of these structures. As these structures have proved unique, especially in regards to the dewclaw, it is important that other ungulates not be used exclusively in the analysis of Rangifer tarandus remains.

Fx Calories Calculator & Fitness Advisor

Calorie counter to record and estimate number of calories we need to consume daily. “FITNESS START WITH WHAT WE EAT”. This project can also provide guidelines for gaining or losing weight. That have heard it way to get started with the very boring term dieting. A number of mobile fitness devices as well as smart watches have emerged on the technology landscape. Body Mass Index is a simple calculation using a person’s height and weight. A BMI of 25.0 or more is overweight, while the healthy range is 18.5 to 24.9. Serious fat-burning activity uses the large muscle groups of the body – the thighs and bottom, chest and back. The greater the overall recruitment of muscle, the higher the calorie expenditure. So in your workouts, That are much better off using, say, the rower than isolating your arms for maximum calorie burn.

Olympic Rowing – Maximum Capacity over 2000 Meters

Olympic rowing in its current form is a high-intensity boat race covering a distance of 2000 m with fastest race times ranging ~5.5-7.5 min, depending on boat class, sex, and environmental factors. To realize such race times, rowers need strength and endurance, which is physiologically evident in an oxidative Adaption of the skeletal muscles, a high aerobic capacity, and the ability to contribute and sustain a relatively high percentage of anaerobic energy for several minutes. Anthropometrically, male and female rowers are characterized by relatively large body measurements. Biomechanics & Physiology: The sitting position of the rower, the involvement of a large muscle mass and the structure of the rowing cycle, consisting of drive and recovery phase where the rower slides back and forth on a sliding seat, affect the cardiovascular and the respiratory system in a unique manner. In Addition to these physiological and anthropometric characteristics, this brief review outlines the extreme metabolic implications of the sport during racing and training and mentions rarely-discussed topics such as established testing procedures, summarizes data on training intensity distribution in elite rowing and includes a short section on heat stress during training and racing in hot and humid conditions expected for the Olympic Games 2021 in Tokyo.

Scoring of large muscle group movements during sleep: An International Restless Legs Syndrome Study Group (IRLSSG) position statement

There is a gap in the manuals for scoring sleep-related movements because of the absence of rules for scoring large movements. A taskforce of the International Restless Legs Syndrome Study Group elaborated rules that define the detection and quantification of movements involving large muscle groups. Consensus on each of the criteria in this paper was reached by testing the presence of consensus on a first proposal; if no consensus was achieved, the concerns were considered and used to modify the proposal. This process was iterated until consensus was reached. A preliminary analysis of the duration of movements involving large muscle groups was also carried out on data from two previous studies, which, however, used a visual analysis of video-polysomnographic recordings obtained from children or adults. Technical specifications and scoring rules were designed for the detection and quantification of large muscle group movements during sleep with a duration between 3 and 45 s in adults or 3 and 30 s in children, characterized by an increase in electromyographic activity and/or the occurrence of movement artifact in any combination of at least two recommended channels and not meeting the criteria for any other type of movement. Large muscle group movements are often accompanied by sleep stage changes, arousals, awakenings, and heart rate rises. The absence of clear and detailed rules defining them has likely impeded the development of studies that might disclose their clinical relevance; these new rules fill this gap.

Exercise Interventions Targeting Obesity in Persons With Spinal Cord Injury

Spinal cord injury (SCI) results in an array of cardiometabolic complications, with obesity being the most common component risk of cardiometabolic disease (CMD) in this population. Recent Consortium for Spinal Cord Medicine Clinical Practice Guidelines for CMD in SCI recommend physical exercise as a primary treatment strategy for the management of CMD in SCI. However, the high prevalence of obesity in SCI and the pleiotropic nature of this body habitus warrant strategies for tailoring exercise to specifically target obesity. In general, exercise for obesity management should aim primarily to induce a negative energy balance and secondarily to increase the use of fat as a fuel source. In persons with SCI, reductions in the muscle mass that can be recruited during activity limit the capacity for exercise to induce a calorie deficit. Furthermore, the available musculature exhibits a decreased oxidative capacity, limiting the utilization of fat during exercise. These constraints must be considered when designing exercise interventions for obesity management in SCI. Certain forms of exercise have a greater therapeutic potential in this population partly due to impacts on metabolism during recovery from exercise and at rest. In this article, we propose that exercise for obesity in SCI should target large muscle groups and aim to induce hypertrophy to increase total energy expenditure response to training. Furthermore, although carbohydrate reliance will be high during activity, certain forms of exercise might induce meaningful postexercise shifts in the use of fat as a fuel. General activity in this population is important for many components of health, but low energy cost of daily activities and limitations in upper body volitional exercise mean that exercise interventions targeting utilization and hypertrophy of large muscle groups will likely be required for obesity management.

EFFECTS OF BLOOD FLOW RESTRICTION IN LARGE AND SMALL MUSCLE GROUPS

ABSTRACT Introduction It is known that strength training brings improvements in health and sports performance by causing muscle hypertrophy and increased strength, as well as modifying some hemodynamic and physiological factors. Several strength training methodologies have been developed, one of which is vascular occlusion. There are few studies with large muscle groups due to poor adherence to the training style and the fact that vascular occlusion of large muscle groups is more difficult. Objective To verify and compare the hemodynamic effects of exercise with and without vascular occlusion in different muscle groups. Methods Quantitative crossover study, with cross-sectional and field procedures. The sample consisted of 10 physically active healthy male and female subjects between 18 and 30 years of age. With the cross-over design, all the volunteers participated in 3 groups: intervention with vascular occlusion, intervention without vascular occlusion and the control group. Results Overall, lactate and cholesterol remained elevated after 15 minutes of recovery and blood glucose and blood pressure did not vary among the groups. Conclusion Vascular occlusion training is an effective method for manipulating hemodynamic variables. Evidence level II; Clinical study.