The Role of Perceived Personal Barriers to Engagement in Leisure-Time Physical Activity

Reichert, Felipe Fossati; Barros, Aluísio J D; Domingues, Marlos Rodrigues; Hallal, Pedro Curi

doi:10.2105/ajph.2005.070144

Cited by 380 publications

(377 citation statements)

References 25 publications

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“…Recommendations for levels of physical activity place heavy emphasis on performing moderate and/or vigorous-intensity cardiorespiratory exercise training (Garber et al 2011), which is associated with a substantial timecommitment. 'Lack of time' is often cited as a barrier to being physically active (Korkiakangas et al 2009;Reichert et al 2007), suggesting that these guidelines may not be the ideal approach to increase physical activity levels to improve public health.…”

Section: Introductionmentioning

confidence: 99%

Towards the minimal amount of exercise for improving metabolic health: beneficial effects of reduced-exertion high-intensity interval training

et al. 2011

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High-intensity interval training (HIT) has been proposed as a time-efficient alternative to traditional cardiorespiratory exercise training, but is very fatiguing. In this study we investigated the effects of a reduced-exertion HIT (REHIT) exercise intervention on insulin sensitivity and aerobic capacity.Twenty-nine healthy but sedentary young men and women were randomly assigned to the REHIT intervention (men: n=7, women n=8) or a control group (men n=6; women n=8). Subjects assigned to the control groups maintained their normal sedentary lifestyle, whilst subjects in the training groups completed 3 exercise sessions per week for 6 weeks. The 10-min exercise sessions consisted of low intensity cycling (60 Watts) and one (1 st session) or two (all other sessions) brief 'all-out' sprints (10 s in week 1, 15 s in weeks 2-3 and 20 s in the final 3 weeks). Aerobic capacity (V O2peak) and the glucose and insulin response to a 75-g glucose load (OGTT) were determined before and 3 days after the exercise program. Despite relatively low ratings of perceived exertion (RPE: 13±1), insulin sensitivity significantly increased by 28% in the male training group following the REHIT intervention (P<0.05). V O2peak increased in the male training (+15%) and female training (+12%) groups (P<0.01). In conclusion we show that a novel, feasible exercise intervention can improve metabolic health and aerobic capacity. REHIT may offer a genuinely time-efficient alternative to HIT and conventional cardiorespiratory exercise training for improving risk factors of T2D.

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Section: Introductionmentioning

confidence: 99%

Towards the minimal amount of exercise for improving metabolic health: beneficial effects of reduced-exertion high-intensity interval training

et al. 2011

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“…As 'lack of time' has been identified as one of the main barriers to becoming and remaining physically active (Korkiakangas et al 2009;Reichert et al 2007), over the past decade research has focused on high-intensity interval training (HIT) as a timeefficient alternative to aerobic exercise . Although initial studies have convincingly demonstrated equal or better health benefits with various HIT protocols compared to much larger volumes of aerobic exercise (Gibala et al 2006;Shepherd et al 2013;Cocks et al 2013;Burgomaster et al 2008;Trapp et al 2008;Gillen et al 2013;Little et al 2010), these HIT protocols tend to be very strenuous and as such are unlikely to be adhered to by sedentary populations.…”

Section: Introductionmentioning

confidence: 99%

Physiological and molecular responses to an acute bout of reduced-exertion high-intensity interval training (REHIT)

et al. 2015

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Physiological and molecular responses to REHIT 2 ABSTRACT Purpose:We have previously shown that six weeks of reduced-exertion high-intensity interval training (REHIT) improves VȮ2max in sedentary men and women, and insulin sensitivity in men. Here we present two studies examining the acute physiological and molecular responses to REHIT. Methods:In Study 1, five men and six women (age: 26±7 y, BMI: 23±3 kg•m -2 , VȮ2max: 51±11 ml•kg -1 •min -1 ) performed a single 10-min REHIT cycling session (60 W and two 20-s 'allout' sprints), with vastus lateralis biopsies taken before and 0, 30 and 180 min post-exercise for analysis of glycogen content, phosphorylation of AMPK, p38 MAPK and ACC, and gene expression of PGC1α and GLUT4. In Study 2, eight men (21±2 y; 25±4 kg•m -2 ; 39±10 ml·kg -1 ·min -1 ) performed three trials (REHIT, 30 min cycling at 50% of VȮ2max, and a resting control condition) in a randomised cross-over design. Expired air, venous blood samples, and subjective measures of appetite and fatigue were collected before and 0, 15, 30 and 90 min post-exercise.Results: Acutely, REHIT was associated with a decrease in muscle glycogen, increased ACC phosphorylation, and activation of PGC1α. When compared to aerobic exercise, changes in VȮ2, RER, plasma volume, and plasma lactate and ghrelin were significantly more pronounced with REHIT, whereas plasma glucose, NEFAs, PYY, and measures of appetite were unaffected. Conclusions:Collectively these data demonstrate that REHIT is associated with a pronounced disturbance of physiological homeostasis and associated activation of signalling pathways, which together may help explain previously observed adaptations once considered exclusive to aerobic exercise.

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“…Estes resultados são semelhantes aos encontrados em estudos prévios em outras populações, sendo também as barreiras mais citadas entre adultos acima de 20 anos (REICHERT et al, 2007;SEBASTIÃO, 2009). Adicionalmente, a alta prevalência de atividade física insuficiente foi detectada (76,5%), confirmando informações relatadas em portadores de AIDS (EIDAM et al, 2006;GUARIGLIA et al, 2007), o que fortalece a necessidade de investigações que identifiquem as possíveis causas dessa conduta.…”

Section: Discussionunclassified

“…Tais resultados são semelhantes aos descritos por Reichert et al (2007) em mulheres brasileiras. Em contrapartida, a barreira mais relatada neste estudo entre os homens foi preguiça ou cansaço.…”

Section: Discussionunclassified

Barreiras pessoais para prática de atividade física percebidas por portadores de AIDS

Ribeiro¹,

Guariglia²,

Pupulin³

et al. 2013

R. Educ. Fís. UEM

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RESUMOO propósito deste estudo foi analisar a prevalência de barreiras pessoais para a prática de atividade física percebidas em portadores de AIDS. Trinta e cinco sujeitos de ambos os gêneros participaram voluntariamente deste estudo. Três questionários foram aplicados na seguinte sequência: a) barreiras pessoais percebidas para prática de atividade física; b) nível de atividade física habitual e c) socioeconômico. A prevalência de prática de atividade física adequada nas horas de lazer (≥ 150 min/sem) foi de 23,5%. As principais barreiras pessoais percebidas para prática de atividade física identificadas foram: (1) preguiça ou cansaço (48,6%); (2) falta de companhia (45,7%); (3) possuir lesão ou doença (37,2%) e (4) falta de dinheiro e medo de se machucar (34,3%, para ambas). Os resultados sugerem que a principal barreira pessoal percebida para prática de atividade física relatada pelos participantes guarda relação com os efeitos colaterais da medicação antirretroviral utilizada para o controle da AIDS.Palavras-chave: Estilo de vida sedentário. AIDS. Questionários.

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The Role of Perceived Personal Barriers to Engagement in Leisure-Time Physical Activity

Cited by 380 publications

References 25 publications

Towards the minimal amount of exercise for improving metabolic health: beneficial effects of reduced-exertion high-intensity interval training

Towards the minimal amount of exercise for improving metabolic health: beneficial effects of reduced-exertion high-intensity interval training

Physiological and molecular responses to an acute bout of reduced-exertion high-intensity interval training (REHIT)

Barreiras pessoais para prática de atividade física percebidas por portadores de AIDS

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