Search results for "PERCEIVED EXERTION"
showing 10 items of 53 documents
ASPECTS OF THE VALIDITY OF BORG'S SCALE. IS IT MEASURING STRESS OR STRAIN?
1977
Experiments with 10 athletes resulted in close correlations of RPE-scores to strain (heart rate) as well as to stress (work load). The comparison of both relations reveals that in the examined range of stress resp. strain the influence of stress predominates the influence of strain on the perceived exertion.
Core Muscle Activity, Exercise Preference, and Perceived Exertion during Core Exercise with Elastic Resistance versus Machine
2015
Objectives. To investigate core muscle activity, exercise preferences, and perceived exertion during two selected core exercises performed with elastic resistance versus a conventional training machine.Methods. 17 untrained men aged 26–67 years participated in surface electromyography (EMG) measurements of five core muscles during torso-twists performed from left to right with elastic resistance and in the machine, respectively. The order of the exercises was randomized and each exercise consisted of 3 repetitions performed at a 10 RM load. EMG amplitude was normalized (nEMG) to maximum voluntary isometric contraction (MVC).Results. A higher right erector spinae activity in the elastic exer…
Home is the new gym: exergame as a potential tool to maintain adequate fitness levels also during quarantine
2020
Purpose With the coronavirus outbreak, the preventive measures include staying at home and isolation, increasing sedentary behaviours and risk for worsening of chronic diseases To explore alternative forms of home-based physical activity, the study aim was to evaluate physiological (heart rate [HR], respiratory exchange ratio [RER], oxygen consumption [ O2], energy expenditure [EE], metabolic equivalent task [MET]) and psychological (session rating of perceived exertion [sRPE], enjoyment) parameters of real (Zumba® class [ZC]) and exergame (Zumba® Fitness Rush [ZFR]) activities in relation to sex Methods Overall, 12 female (age: 24 7 ± 0 9 years) and 8 male (age: 25 3 ± 2 1 years) college s…
Causes of Work Related Musculoskeletal Disorders in the Textile Industry
2020
In Latvia textile industry workers suffer from work-related muscular skeletal disorders (WRMSD). The aim of the research is to study the causes of WRMSDs for the tailor’s profession in a medium- sized enterprise. This research involved 120 tailors. Modified Standardized Nordic questionnaire, Borg Scale of Perceived Exertion, Key indicator method was used for analysis of physical workload during manual handling operations. Main survey results show that tailors suffer from pain in shoulders, wrists and fingers, have repetitive arm movements in sitting compulsory work position. Accordingly to Key indicator method tailors refer to hard work level but Borg scale results indicates the load betwee…
Stay Home, Stay Active with SuperJump®: A Home-Based Activity to Prevent Sedentary Lifestyle during COVID-19 Outbreak
2020
The purpose of this study was to investigate the intensity of SuperJump® workout as a home-based activity for fulfilling physical activity recommendations during COVID-19 home-confinement. Seventeen (males: n = 10; females: n = 7) college students (age: 25.8 ± 2.7 years; height: 1.7 ± 0.1 m; weight: 66.2 ± 12.1 kg) participated in the study. To assess the intensity of the activity (30-min), heart rate (HR), expressed as percentages of age-predicted maximal HR (%HRmax), and session ratings of perceived exertion (sRPE), collected on a CR10 scale, were used. %HRmax data were categorically separated in five classes of intensity according to the American College of Sport…
The cardinal exercise stopper: Muscle fatigue, muscle pain or perception of effort?
2018
The capacity to sustain high-intensity aerobic exercise is essential for endurance performance. Therefore, it is important to understand what is the factor limiting time to exhaustion (TTE) in healthy and fit adults. In Study 1, maximal voluntary cycling power (MVCP) was measured in 11 volunteers before and immediately after a high-intensity TTE test on cycle ergometer. Cadence was 60 rpm in both the MVCP and TTE tests. Despite a 35% loss in MVCP, power produced during the final MVCP test (mean ± SD 469 ± 111 W) was significantly higher than the power required by the TTE test (269 ± 55 W) (P < 0.001). In Study 2, 12 participants performed a cold pressor test (CPT) to the limit of tolerance …
Studies using pharmacological blockade of muscle afferents provide new insights into the neurophysiology of perceived exertion
2016
The increase in blood pressure observed during physical activities is exaggerated in patients with hypertension, exposing them to a higher cardiovascular risk.Neural signals from the skeletal muscles appear to be overactive, resulting in this abnormal response in hypertensive patients.In the present study, we tested whether the attenuation of these neural signals in hypertensive patients could normalize their abnormal increase in blood pressure during physical activity.Attenuation of the neural signals from the leg muscles with intrathecal fentanyl injection reduced the blood pressure of hypertensive men during cycling exercise to a level comparable to that of normotensive men.Skeletal musc…
Cardiorespiratory responses to basic aquatic exercise – A pilot study
2006
This study aimed to examine cardiorespiratory responses to six basic aquatic exercises and to compare the impact of the exercises between healthy females (H group, n=10) and females with diagnosed cardiopulmonary diseases (C group, n=10). The average age of the participants was 52.6(±5.9) years. Each exercise was performed for 3 min. During the exercises, heart rate (HR), oxygen consumption (VO2), blood lactate concentration (BLA), and rate of perceived exertion (RPE) were measured. In each pair of exercises, the latter part was more strenuous than the first. Walking in place was least and cross-country skiing the most strenuous mode of exercise. Energy expenditure (EE) ranged between 2.5±0…
EMG, Rate of Perceived Exertion, Pain, Tolerability and Possible Adverse Effects of a Knee Extensor Exercise with Progressive Elastic Resistance in P…
2020
In people with haemophilia (PWH), elastic band training is considered an optimal option, even though the literature is scarce. The aim was to evaluate normalized electromyographic amplitude (nEMG), rate of perceived exertion (RPE), pain, tolerability, and possible adverse effects during the knee extension exercise using multiple elastic resistance intensities in PWH. During a single session, 14 severe PWH undergoing prophylactic treatment performed knee extensions without resistance and with different intensity levels of elastic resistance. nEMG was measured for the knee extensors and participants rated their RPE, tolerability and pain intensity after each condition. Patients had to report …
Longer Nap Duration During Ramadan Observance Positively Impacts 5-m Shuttle Run Test Performance Performed in the Afternoon.
2022
It is well-documented that changes in the rhythm of life during Ramadan affect sleep schedules (i.e., interruption of night sleep patterns) and are likely to have negative effects on physical and cognitive performances. The aim of the present study was to examine the effect of different naps opportunities’ durations during Ramadan on performance of short-duration repetitive maximal exercise and perception of effort. Fifteen physically active men (age: 21 ± 3 years, height: 177 ± 6 cm, body-mass: 73 ± 10 kg) performed a 6 × 30-s shuttle run test after a 25-min nap (N25), a 45-min nap (N45), and in a no-nap condition (NN) during three experimental periods: ∼2 weeks before Ramadan (BR), the la…