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Michelle J Johnson - One of the best experts on this subject based on the ideXlab platform.

  • technology assisted stroke rehabilitation in mexico a pilot randomized trial comparing traditional therapy to Circuit Training in a robot technology assisted therapy gym
    Journal of Neuroengineering and Rehabilitation, 2016
    Co-Authors: Karla Bustamante D Valles, Sandra Montes, Maria De Jesus Madrigal, Adan Burciaga, Maria Elena Martinez, Michelle J Johnson
    Abstract:

    Background Stroke rehabilitation in low- and middle-income countries, such as Mexico, is often hampered by lack of clinical resources and funding. To provide a cost-effective solution for comprehensive post-stroke rehabilitation that can alleviate the need for one-on-one physical or occupational therapy, in lower and upper extremities, we proposed and implemented a technology-assisted rehabilitation gymnasium in Chihuahua, Mexico. The Gymnasium for Robotic Rehabilitation (Robot Gym) consisted of low- and high-tech systems for upper and lower limb rehabilitation. Our hypothesis is that the Robot Gym can provide a cost- and labor-efficient alternative for post-stroke rehabilitation, while being more or as effective as traditional physical and occupational therapy approaches.

  • Technology-assisted stroke rehabilitation in Mexico: a pilot randomized trial comparing traditional therapy to Circuit Training in a Robot/technology-assisted therapy gym
    Journal of NeuroEngineering and Rehabilitation, 2016
    Co-Authors: Karla Bustamante Valles, Sandra Montes, Adan Burciaga, Maria Elena Martinez, Maria De Jesus Madrigal, Michelle J Johnson
    Abstract:

    Background Stroke rehabilitation in low- and middle-income countries, such as Mexico, is often hampered by lack of clinical resources and funding. To provide a cost-effective solution for comprehensive post-stroke rehabilitation that can alleviate the need for one-on-one physical or occupational therapy, in lower and upper extremities, we proposed and implemented a technology-assisted rehabilitation gymnasium in Chihuahua, Mexico. The Gymnasium for Robotic Rehabilitation (Robot Gym) consisted of low- and high-tech systems for upper and lower limb rehabilitation. Our hypothesis is that the Robot Gym can provide a cost- and labor-efficient alternative for post-stroke rehabilitation, while being more or as effective as traditional physical and occupational therapy approaches. Methods A typical group of stroke patients was randomly allocated to an intervention ( n  = 10) or a control group ( n  = 10). The intervention group received rehabilitation using the devices in the Robot Gym, whereas the control group ( n  = 10) received time-matched standard care. All of the study subjects were subjected to 24 two-hour therapy sessions over a period of 6 to 8 weeks. Several clinical assessments tests for upper and lower extremities were used to evaluate motor function pre- and post-intervention. A cost analysis was done to compare the cost effectiveness for both therapies. Results No significant differences were observed when comparing the results of the pre-intervention Mini-mental, Brunnstrom Test, and Geriatric Depression Scale Test, showing that both groups were functionally similar prior to the intervention. Although, both Training groups were functionally equivalent, they had a significant age difference. The results of all of the upper extremity tests showed an improvement in function in both groups with no statistically significant differences between the groups. The Fugl-Meyer and the 10 Meters Walk lower extremity tests showed greater improvement in the intervention group compared to the control group. On the Time Up and Go Test, no statistically significant differences were observed pre- and post-intervention when comparing the control and the intervention groups. For the 6 Minute Walk Test, both groups presented a statistically significant difference pre- and post-intervention, showing progress in their performance. The robot gym therapy was more cost-effective than the traditional one-to-one therapy used during this study in that it enabled therapist to train up to 1.5 to 6 times more patients for the approximately same cost in the long term. Conclusions The results of this study showed that the patients that received therapy using the Robot Gym had enhanced functionality in the upper extremity tests similar to patients in the control group. In the lower extremity tests, the intervention patients showed more improvement than those subjected to traditional therapy. These results support that the Robot Gym can be as effective as traditional therapy for stroke patients, presenting a more cost- and labor-efficient option for countries with scarce clinical resources and funding. Trial registration ISRCTN98578807 .

Pedro E Alcaraz - One of the best experts on this subject based on the ideXlab platform.

  • acute physiological and performance responses to high intensity resistance Circuit Training in hypoxic and normoxic conditions
    Journal of Strength and Conditioning Research, 2017
    Co-Authors: Domingo J Ramoscampo, Jacobo A Rubioarias, Tomas T Freitas, Arturo Camacho, J F Jimenezdiaz, Pedro E Alcaraz
    Abstract:

    Ramos-Campo, DJ, Rubio-Arias, JA, Freitas, TT, Camacho, A, Jimenez-Diaz, JF, and Alcaraz, PE. Acute physiological and performance responses to high-intensity resistance Circuit Training in hypoxic and normoxic conditions. J Strength Cond Res 31(4): 1040-1047, 2017-The aim of this study was to analyze physical performance and physiological variables during high-intensity resistance Circuit Training (HRC) with the addition of 2 levels (moderate and high) of systemic hypoxia. Twelve resistance-trained young male subjects participated in the study. After a 6 repetition maximum testing session, participants performed 3 randomized trials of HRC: normoxia (NORM: fraction of inspired oxygen [FiO2] = 0.21; ∼0 m altitude), moderate hypoxia (MH: FiO2 = 0.16; ∼2.100 m altitude), or high hypoxia (HH: FiO2 = 0.13; ∼3.800 m altitude), as controlled by a hypoxic generator. Bench press force, heart rate and heart rate variability, rating of perceived exertion, resting metabolic rate, energy cost, and countermovement jump were assessed in each session. Heart rate variability in HH was significantly lower (standard deviation of all normal NN intervals [intervals between two "normal" beats] = 111.9 vs. 86.7 milliseconds; standard deviation of the difference between consecutive NN intervals = 19.5 vs. 17.0 milliseconds; p ≤ 0.05) in comparison with NORM. There were significant differences in rating of perceived exertion between NORM and HH (11.6 vs. 13.8 points). Peak and mean force on the bench press were significantly lower (p ≤ 0.05) in HH when compared with MH (peak: 725 vs. 488 N; mean: 574 vs. 373 N). Energy cost was significantly higher (p ≤ 0.01) in both hypoxic conditions compared with NORM (NORM: 10.4; MH: 11.7; HH: 13.3 kJ·min). There were no differences between conditions in heart rate and countermovement jump variables. These results indicate that hypoxic stimuli during HRC exercise alter physical performance and physiological variables and affect how strenuous the exercise is perceived to be. High-intensity resistance Circuit Training in hypoxia increases the stress on the performance and physiological responses, and these differences must be taken into account to avoid an excessive overload.

  • Biochemical responses and physical performance during high-intensity resistance Circuit Training in hypoxia and normoxia
    European Journal of Applied Physiology, 2017
    Co-Authors: Domingo J. Ramos-campo, Jacobo A. Rubio-arias, Stéphane Dufour, Linda Chung, Vicente Ávila-gandía, Pedro E Alcaraz
    Abstract:

    Purpose The aim of this study was to analyze the effect of hypoxia on metabolic and acid–base balance, blood oxygenation, electrolyte, and half-squat performance variables during high-resistance Circuit (HRC) Training. Methods Twelve resistance-trained subjects participated in this study. After a 6RM testing session, participants performed three randomized trials of HRC: normoxia (NORM: FiO_2 = 0.21), moderate hypoxia (MH: FiO_2 = 0.16), or high hypoxia (HH: FiO_2 = 0.13), separated by 72 h of recovery in normoxic conditions. HRC consisted of two blocks of three exercises (Block 1: bench press, deadlift and elbow flexion; Block 2: half-squat, triceps extension, and ankle extension). Each exercise was performed at 6RM. Rest periods lasted for 35 s between exercises, 3 min between sets, and 5 min between blocks. Peak and mean force and power were determined during half-squat. Metabolic, acid–base balance, blood oxygenation and electrolyte variables, arterial oxygen saturation (SaO_2), and rating of perceived exertion (RPE) were measured following each block. Results During the first set, peak force and power were significantly lower in HH than MH and NORM; whereas in the second set, mean and peak force and power were significantly lower in HH than NORM. At the end of the HRC Training session, blood lactate and RPE in HH were significantly higher than in MH and NORM. SaO_2, pH, HCO_3 ^−, and pO_2 values were significantly lower in all hypoxic conditions than in NORM. Conclusion These results indicate that simulated hypoxia during HRC exercise reduce blood oxygenation, pH, and HCO_3 ^−, and increased blood lactate ultimately decreasing muscular performance.

  • biochemical responses and physical performance during high intensity resistance Circuit Training in hypoxia and normoxia
    European Journal of Applied Physiology, 2017
    Co-Authors: Domingo J Ramoscampo, Jacobo A Rubioarias, Linda Chung, Stephane P Dufour, Vicente Avilagandia, Pedro E Alcaraz
    Abstract:

    Purpose The aim of this study was to analyze the effect of hypoxia on metabolic and acid–base balance, blood oxygenation, electrolyte, and half-squat performance variables during high-resistance Circuit (HRC) Training.

  • impact of resistance Circuit Training on neuromuscular cardiorespiratory and body composition adaptations in the elderly
    Aging and Disease, 2013
    Co-Authors: Salvador Romeroarenas, Miryam Martinezpascual, Pedro E Alcaraz
    Abstract:

    Declines in maximal aerobic power and skeletal muscle force production with advancing age are examples of functional declines with aging, which can severely limit physical performance and independence, and are negatively correlated with all cause mortality. It is well known that both endurance exercise and resistance Training can substantially improve physical fitness and health-related factors in older individuals. Circuit-based resistance Training, where loads are lifted with minimal rest, may be a very effective strategy for increasing oxygen consumption, pulmonary ventilation, strength, and functional capacity while improving body composition. In addition, Circuit Training is a time-efficient exercise modality that can elicit demonstrable improvements in health and physical fitness. Hence, it seems reasonable to identify the most effective combination of intensity, volume, work to rest ratio, weekly frequency and exercise sequence to promote neuromuscular, cardiorespiratory and body composition adaptations in the elderly. Thus, the purpose of this review was to summarize and update knowledge about the effects of Circuit weight Training in older adults and elderly population, as a starting point for developing future interventions that maintain a higher quality of life in people throughout their lifetime.

  • effects of high resistance Circuit Training in an elderly population
    Experimental Gerontology, 2013
    Co-Authors: Salvador Romeroarenas, Anthony J Blazevich, Miryam Martinezpascual, Jorge Perezgomez, Antonio J Luque, Francisco Javier Lopezroman, Pedro E Alcaraz
    Abstract:

    The aim of this study was to determine the efficacy of a program of high-resistance Circuit (HRC) Training, and to compare the effects of HRC to traditional heavy strength (TS) Training on strength, muscle size, body composition and measures of cardiovascular fitness in a healthy elderly population. Thirty-seven healthy men and women (61.6±5.3years) were randomly assigned to HRC (n=16), TS (n=14), or a control group (CG, n=7). Training consisted of weight lifting twice a week for 12weeks. Before and after the Training, isokinetic peak torque in the upper and lower body, and body composition (dual X-ray absorptiometry) were determined. In addition, cardiovascular parameters were evaluated during an incremental treadmill test. Both HRC and TS groups showed significant increases in isokinetic strength (p<0.001), and the increase was significantly greater in the experimental groups than in CG (p<0.03). There were significant increases in lean mass (HRC, p<0.001; TS, p=0.025) and bone mineral density (HRC, p=0.025; TS, p=0.018) in the experimental groups. Only HRC showed a significant decrease in fat mass (p=0.011); this decrease was significantly greater in HRC than in CG (p=0.039). There were significant improvements in walking economy in the HRC group (p<0.049), although there were no statistical differences between groups. There were no changes in any variables in CG. Hence, HRC Training was as effective as TS for improving isokinetic strength, bone mineral density and lean mass. Only HRC Training elicited adaptations in the cardiovascular system and a decrease in fat mass.

Chris J Hass - One of the best experts on this subject based on the ideXlab platform.

  • Effect of moderate-intensity exercise Training on the cognitive function of young adults with intellectual disabilities.
    Journal of Strength and Conditioning Research, 2012
    Co-Authors: Robert M. Pastula, Christine Stopka, Anthony T. Delisle, Chris J Hass
    Abstract:

    In addition to cognitive impairment, young adults with intellectual disabilities (IDs) are also more likely to be in poor health. Exercise may help ameliorate both of these deficits. While the health benefits of exercise are well documented and understood, the cognitive benefits of exercise are emerging. Exercise has been shown to improve the cognitive function of young, old, and diseased populations but few studies have evaluated the effect of exercise Training on the cognitive functioning of individuals with IDs. The purpose of this study was to determine the effect of moderate-intensity exercise Training on the cognitive function of young adults with IDs. Fourteen students (age, 19.4 ± 1.3 years) with mild to moderate IDs participated in an 8-week comprehensive exercise intervention program based on Circuit Training, aerobic dancing, and adapted sport activities. Sessions lasted 45 minutes, and intensity was maintained at 60�70% of maximum heart rate (HRmax). Aerobic fitness was assessed via the Young Men�s Christian Association (YMCA) step test, and intellectual functioning was assessed via 3 subtests from the Woodcock-Johnson III Tests of Cognitive Abilities once before and after the intervention. Performance was significantly improved on all 3 cognitive tests (all, p < 0.002). Aerobic fitness also significantly improved (p < 0.002). The mean percent increase in processing speed, a measure taking into account each individual's performance on the 3 subtests, was 103%. The mean individual improvement in aerobic fitness was 17.5%. Moderate-intensity exercise Training can yield robust improvements in the cognitive functioning and aerobic fitness of young adults with IDs. These effects support the inclusion of exercise into the lives of young adults with ID to promote their physical and cognitive health. Fourteen students (age, 19.4 ± 1.3 years) with mild to moderate IDs participated in an 8-week comprehensive exercise intervention program based on Circuit Training, aerobic dancing, and adapted sport activities. Sessions lasted 45 minutes and intensity Powered by Editorial Manager and Preprint Manager from Aries Systems Corporation was maintained at 60�70% of HRmax. Aerobic fitness was assessed via the YMCA step test, and intellectual functioning was assessed via 3 subtests from the Woodcock-Johnson III Tests of Cognitive Abilities once before and after the intervention. Performance was significantly improved on all 3 cognitive tests (all, p < 0.002). Aerobic fitness also significantly improved (p < 0.002). The mean percent increase in processing speed, a measure taking into account each individual's performance on the 3 subtests, was 103%. The mean individual improvement in aerobic fitness was 17.5%. Moderate-intensity exercise Training can yield robust improvements in the cognitive functioning and aerobic fitness of young adults with IDs. These effects support the inclusion of exercise into the lives of young adults with ID to promote their physical and cognitive health.

  • Effect of moderate-intensity exercise Training on the cognitive function of young adults with intellectual disabilities.
    Journal of Strength and Conditioning Research, 2012
    Co-Authors: Robert M. Pastula, Christine Stopka, Anthony T. Delisle, Chris J Hass
    Abstract:

    In addition to cognitive impairment, young adults with intellectual disabilities (IDs) are also more likely to be in poor health. Exercise may help ameliorate both of these deficits. While the health benefits of exercise are well documented and understood, the cognitive benefits of exercise are emerging. Exercise has been shown to improve the cognitive function of young, old, and diseased populations but few studies have evaluated the effect of exercise Training on the cognitive functioning of individuals with IDs. The purpose of this study was to determine the effect of moderate-intensity exercise Training on the cognitive function of young adults with IDs. Fourteen students (age, 19.4 ± 1.3 years) with mild to moderate IDs participated in an 8-week comprehensive exercise intervention program based on Circuit Training, aerobic dancing, and adapted sport activities. Sessions lasted 45 minutes, and intensity was maintained at 60�70% of maximum heart rate (HRmax). Aerobic fitness was assessed via the Young Men�s Christian Association (YMCA) step test, and intellectual functioning was assessed via 3 subtests from the Woodcock-Johnson III Tests of Cognitive Abilities once before and after the intervention. Performance was significantly improved on all 3 cognitive tests (all, p < 0.002). Aerobic fitness also significantly improved (p < 0.002). The mean percent increase in processing speed, a measure taking into account each individual's performance on the 3 subtests, was 103%. The mean individual improvement in aerobic fitness was 17.5%. Moderate-intensity exercise Training can yield robust improvements in the cognitive functioning and aerobic fitness of young adults with IDs. These effects support the inclusion of exercise into the lives of young adults with ID to promote their physical and cognitive health. Fourteen students (age, 19.4 ± 1.3 years) with mild to moderate IDs participated in an 8-week comprehensive exercise intervention program based on Circuit Training, aerobic dancing, and adapted sport activities. Sessions lasted 45 minutes and intensity Powered by Editorial Manager and Preprint Manager from Aries Systems Corporation was maintained at 60�70% of HRmax. Aerobic fitness was assessed via the YMCA step test, and intellectual functioning was assessed via 3 subtests from the Woodcock-Johnson III Tests of Cognitive Abilities once before and after the intervention. Performance was significantly improved on all 3 cognitive tests (all, p < 0.002). Aerobic fitness also significantly improved (p < 0.002). The mean percent increase in processing speed, a measure taking into account each individual's performance on the 3 subtests, was 103%. The mean individual improvement in aerobic fitness was 17.5%. Moderate-intensity exercise Training can yield robust improvements in the cognitive functioning and aerobic fitness of young adults with IDs. These effects support the inclusion of exercise into the lives of young adults with ID to promote their physical and cognitive health.

Karla Bustamante D Valles - One of the best experts on this subject based on the ideXlab platform.

Mamdouh Farag - One of the best experts on this subject based on the ideXlab platform.

  • effects of Circuit Training on body composition and peak cardiorespiratory responses in patients with moderate to severe traumatic brain injury
    Archives of Physical Medicine and Rehabilitation, 2005
    Co-Authors: Yagesh Bhambhani, Gary Rowland, Mamdouh Farag
    Abstract:

    Abstract Bhambhani Y, Rowland G, Farag M. Effects of Circuit Training on body composition and peak cardiorespiratory responses in patients with moderate to severe traumatic brain injury. Objective To examine the time course of the changes in body composition and peak cardiorespiratory fitness resulting from routine brain injury rehabilitation program (BIRP) activities and Circuit Training in patients with moderate to severe traumatic brain injury (TBI). Design Time-series design spanning 18 weeks. Trials T1 and T2 were completed in weeks 1 and 2, respectively, to establish reliability of the measurements, followed by trial 3 (T3) 4 weeks later to evaluate changes resulting from the BIRP. Setting A BIRP in a community rehabilitation hospital. Participants Fourteen inpatients with moderate to severe acquired TBI (Glasgow Coma Scale score, 4.6±1.4; time since injury, 17.2±17mo). Interventions Twelve-week Circuit-Training program designed to enhance muscular strength and endurance and aerobic fitness. Subjects were tested midway (T4) through the program and at the end (T5) of 12 weeks. The patients completed an average of 32 supervised sessions, each lasting 1 hour. Main outcome measures Changes in body composition and peak cardiorespiratory responses. Results No significant changes were observed in the body mass or percentage body fat during the study. The peak values of power output, oxygen uptake, and ventilation rate increased significantly as a result of Training, with no concomitant increases in peak heart rate or blood lactate (T5>T3, T2, T1; P Conclusions In a heterogeneous sample of patients with moderate to severe TBI, (1) body composition and peak cardiorespiratory responses remained fairly stable during 6 weeks of BIRP activities, (2) improvements in peak cardiorespiratory fitness required more than 6 weeks of Circuit Training, and (3) a 12-week course of Circuit Training without controlling caloric intake was not effective in reducing body weight or percentage body fat.