We investigated whether hand guards (HG) influence the perception of pain and exertionduring the execution of a standardized task on high bar to induce forearm muscle fatigue aswell as a decline in grip strength after the task. Design: A cross-over study design wasemployed 15 healthy and physically active volunteers completed static bodyweight holds (8cycles of 20 second load in hang and 10 second rest), on a high bar. The exercise protocolwas performed with and without HG. Perception of pain and exertion during the task wererecorded. Peak handgrip force and explosive force parameters (i.e., rate of force development[RFD] and contractile impulse [CI] at 30 to 200 ms) were obtained from force-time curves.Peak force and explosive force parameters were normalized (i.e., POS/PRE) for statisticalanalysis. The use of a HG significantly attenuates pain perception (p < 0.05), with amoderate to large effect size (d = 0.52), but did not alter the perception of exertion during thetask, nor did it alter peak force, RFD, or CI. The use of HG reduces the perception of localpain during static holds. However, HG do not alter the perception of exertion during the tasknor do they alter the gripping force ability immediately afterwards. This research did notreceive any specific grant from funding agencies in the public, commercial, or not-for-profitsectors.
Objetivo: Avaliar a capacidade funcional dos indivíduos utilizando o WHODAS 2.0, após 3 anos de alta da unidade de terapia intensiva e identificar os fatores associados. Métodos: Estudo retrospectivo com abordagem quantitativa com delineamento transversal, tendo como amostra indivíduos que receberam alta hospitalar 3 anos após o internamento na unidade de terapia intensiva. Resultados: Dos indivíduos que compunham a amostra, 64,7% eram mulheres com idade média 41,6 anos. Os diagnósticos primários mais frequentes foram neurológicos e respiratórios. Dos pacientes classificados pelo WHODAS 2.0, 47,1% apresentava incapacidade moderada a grave e 52,9% com deficiência leve ou nenhuma. Conclusão: Indivíduos que apresentaram incapacidade funcional moderada a grave estavam associados ao maior tempo de internação e uso da ventilação mecânica, sendo que as áreas de maiores comprometimentos foram cognição, atividade de vida e participação social. Os indivíduos classificados com incapacidade leve ou nenhuma foram capazes de retornar ao trabalho após a alta hospitalar.
Background: Isometric exercise is important to cardiac rehabilitation, but understanding how different tasks can interfere with the Heart Rate Variability (HRV) still needs some clarification. Objective: To compare the Autonomic Nervous System (ANS) behavior during submaximal isometric tasks involving different muscle groups. Methods: Six healthy males ([Formula: see text] years old) performed two submaximal isometric tasks (30%) of knee extension and handgrip, sustained for 3[Formula: see text]min each, using visual feedback to maintain force levels. Successive RR intervals were recorded along the task, as well as for 5[Formula: see text]min before the task. Linear and nonlinear methods were used to obtain HRV parameters from successive RR intervals. Student [Formula: see text] test was used to compare the data with significant level set as [Formula: see text]. Results: Time domain parameters as well as the nonlinear parameters were significantly higher during the handgrip task. Conclusions: Submaximal isometric handgrip task is associated with a lower vagal withdrawal, when compared to submaximal isometric knee extension, suggesting that handgrip task promotes greater cardioprotection during exercise, while the isometric knee extension task could induce better adaptations to training.
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