Browsing by Subject "Exercise intensity"

Now showing 1 - 4 of 4
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    Acute physiological and affective responses in postmenopausal women during prescribed and self - selected aerobic exercise
    (Murcia: Servicio de Publicaciones de la Universidad de Murcia, 2019) Batista, Danilo Rodrigues; Meneghel, ,Vlademir; Ornelas, Felipe de; Moreno, Marlene Aparecida; Lopes, Charles Ricardo; Braz, Tiago Volpi
    Few elderly meet current physical activity (PA) guidelines. The limitations for PA adherence is due the barriers found such as displeasure, discomfort, pain and sense of exhaustion. Self - selected exercise has been strategy for PA adherence, due greatest tolerance by aerobic exercise practitioners. The aim of this study was investigate physiological and psychological responses in prescribed and self - selected aerobic session s in postmenopausal women. It was recruited 30 women active. The study consisted 3 moments: familiarization, self - selected, prescribed sessions. The intensity of self - selected session was replicated in prescribed session. The normality and homogeneity of t he variances were verified using the Shapiro - Wilk and Levene tests, respectively a repeated measures analysis of variance (ANOVA) was used to compare HR, SD1, FS, RPE 6 - 20, time effect (5, 10, 15, and 20 min) x two sessions (Self - selected and Prescribed). The magnitudes of these differences were examined using the standardized difference based on Cohen’s d units by means of effect sizes (d). There was significant main effect of the time for heart rate (HR) (p=.047), FS (p=.009) and Borg scale (p=.012). Sess ion by time interaction the significant main effect in HR (p<.001). Significant mean difference was observed for psychological variables feeling scale (FS) (p= .011), Borg scale (p= .016) and internal training load (ITL) (p<.001). This study demonstrates t he relation of the self - selected session with more affective psychological responses and low perceived effort as well as greater physiological responses (HR and lnSD1) from 10 minutes in the prescribed session when compared to the self - selected.
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    Can lab and field testing be complementary in defining physiological effort through the Serra da Estrela routes?
    (Murcia: Servicio de publicaciones de la Universidad de Murcia, 2020) Bartolomeu, Raúl F.; Bragada, José A.; Casanova, Natalina; Casanova, Jorge; Costa, Mário J.
    Background: The current classification of the hiking trails us-ing an agreement between lab and field test is inexistent. The aim of this study was to characterize a single route in a physiological basis. Methods:Twenty-nine subjects underwent a 11km hike. The velocity and heart rate (HR) were monitored continuously. In a separate day, all subjects under-went a laboratory test to measure both HR and Oxygen uptake (VO2). Lin-ear regressions between net HR (HRnet) vs %VO2 reserve were computed. Results: The mean coefficients of determination were very high (R2=0.98). The calculated %VO2reserve mean values for this route were 42%. Conclu-sions: This route elicited light-to-moderate intensities. When hiking in this or in similar round routes, the formula %VO2reserve=0.64+0.77*HRnet can be used to assess the hiking intensity. The complementarity of the field and lab tests proved to be useful and reliable in defining the energetic de-mands of the hike.
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    Percepción de la intensidad al esfuerzo: Un estudio multi-method en actividad física
    (Murcia: Servicio de Publicaciones de la Universidad de Murcia, 2015) Castañer, Marta; Saüch, Glòria; Camerino, Oleguer; Sánchez-Algarra, Pedro; Anguera Argilaga, María Teresa
    Este estudio aborda un doble objetivo: a) conocer si existe progresión signi+cativa entre tres valores correspondientes al índice de Borg elicitados por jóvenes deportistas con relación a tres actividades de intensidad creciente; b) analizar la relación existente entre el índice de masa corporal (IMC) de los participantes con los valores de frecuencia cardíaca (FC) y la percepción de intensidad del esfuerzo (RPE). Método: Treinta y cinco deportistas jóvenes con una edad media de 18 y 28 años (21±0,5), realizaron 3 actividades que exigían una intensidad creciente de ejercicio: leve, moderada y vigorosa (ACSM, 2011). Se controló la frecuencia cardíaca mediante el dispositivo telemétrico Polar Team 2 y al +nalizar las tres actividades se administró tres veces la escala de Borg para obtener la RPE para cada actividad. Se ha complementado la metodología observacional indirecta (índices de Borg) con la metodología cuasiexperimental para obtener inferencias causales mediante un diseño sincrónico de variable de asignación conocida y grupo único. Se ha realizado un análisis de regresión múltiple, considerando la FC y la RPE como variables predictoras del IMC. Resultados: la RPE es creciente, acorde a las actividades, en todos los participantes, aunque en ningún caso la tendencia es estadísticamente signi+cativa. Prácticamente la cuarta parte del IMC se puede explicar por la FC y la RPE puesto que los participantes que tienen valores más altos de FC y de índice de Borg tienen también mayores valores de IMC. Este estudio puede proporcionar una visión de evaluación integrada entre los factores IMC, FC y la RPE, que suelen investigarse de modo aislado.
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    The effect of different exercise intensities on knee and ankle joints' torque and functional mobility in children with Down Syndrome
    (Universidad de Murcia, Servicio de Publicaciones, 2023) Allam, Hatem H.; Muhsen, Alsufiany; Alshehri, Fahad Hadi; Almeheyawi, Rania N.; Alhusaini, Adel Abdullah A.; Alsayad, Tarek; Sheha, Samah; Elsayyad, Lamiaa K.
    The aim of this study was to compare the effect of mild and moderate exercise intensity on selected knee and ankle isokinetic parameters and functional mobility in children with Down Syndrome (DS), in order to find the appropriate exercise intensity that is beneficial for them. A clinical controlled trial was conducted on thirty-four male children with DS, aged between eight and twelve years, which were randomly divided into two groups (Group 1 and Group 2). The first group (Group 1) received mild-intensity treadmill aerobic exercises [T-AE] and the second group (Group 2) received moderate-intensity T-AE, three sessions weekly for three months. The timed up and go (TUG) test was utilized to evaluate the functional mobility while the peak eccentric torque of knee extensors and ankle plantar flexors of the dominant leg was evaluated by isokinetic dynamometry. IBM SPSS Program (version 20) was utilized to conduct the statistical analysis. There was a statistically significant improvement in the three variables after intervention with the moderate-intensity program (p<0.05), while the improvement was not statistically significant after intervention with the mild-intensity program (p>0.05). A moderate-intensity exercise program is an appropriate and beneficial intervention and should be considered as a part of rehabilitation programs for DS children.