Association among Physical Activity Level, Cardiorespiratory Fitness, and Risk of Musculoskeletal Injury

Abstract

To help public health practitioners promote physical activities with a low risk of injury, this study determined the relation among type and duration of physical activity, cardiorespiratory fitness, and musculoskeletal injury in a sample of adults enrolled in the Aerobics Center Longitudinal Study. Subjects included 4,034 men and 967 women who underwent a baseline physical examination between 1970 and 1985 and who returned a mailed follow-up survey in 1986. At baseline, a treadmill graded exercise test was used to measure cardiorespiratory fitness. At follow-up, subjects reported injuries and type and duration of physical activity in the preceding 12 months. Polytomous logistic regression was used to estimate the association among physical activity type and duration, cardiorespiratory fitness, and injury. The risk of sustaining an activity-related injury increased with higher duration of physical activity per week and cardiorespiratory fitness levels. Results suggest that cardiorespiratory fitness may be a surrogate for unmeasured components of physical activity, such as exercise intensity. Among walkers, increasing duration of activity per week was not associated with an increased risk of injury. Results suggest that, for most adults, walking is a safe form of physical activity associated with a lower risk of injury than running or sport participation.

Incidência De Lesões Em Praticantes De Corrida De Rua No Município De Criciúma, Brasil

“…Várias são as investigações sobre o porquê dessa localização, no entanto são muitos os fatores que podem colaborar para o surgimento dessas lesões. Há algum tempo, com o frequente avanço das tecnologias, vêm se descartando a ideia de que os corredores se lesionem por utilizar calçado inadequado e reforçando a ideia de que as variáveis do treinamento 14 como intensidade 15 e volume 5,16,17 sejam as principais causas, assim como neste estudo, que verificou correlação positiva (r= 0,226) entre incidên-cia de lesões e distância média diária, conforme demonstra a Tabela 5. Sobre as variáveis intrínsecas 5 esta pesquisa não encontrou correlações significativas entre lesão e IMC ou peso, no entanto, conforme mostra a Tabela 1, grande parte (64%) dos corredores do sexo masculino estão com sobrepeso, fator que pode ser o grande influenciador no ingresso de homens à prática da modalidade ou reflete que, já que muitos (44,4%) praticam a musculação, a informação de IMC possa estar mascarando o alto percentual de massa magra, porém o estudo não teve entre seus objetivos responder a este questionamento.…”

Do the health benefits of cycling outweigh the risks?

“…Cycling can be considered a moderate type and duration of sport and has lower injury risk than do more vigorous types (running, scholastic athletics) and longer durations of physical activity (Hootman et al 2001;Parkkari et al 2004). Exercise has acute cardiac risks as well, but the absolute risk of a cardiac event during exercise seems to be low (Institute of Medicine 2007).…”

Exercise does not feel the same when you are overweight: the impact of self-selected and imposed intensity on affect and exertion

“…6,22,23 This could be due to the fact that higher intensity entails increased risk of musculoskeletal injuries, particularly among the overweight. [24][25][26] Alternatively, given that people generally tend to do what makes them feel good and avoid what makes them feel bad, 27 the lower adherence could also be attributed to the fact that high intensity is typically experienced as unpleasant. 28 Although this latter possibility remains untested, the few relevant published studies permit two important observations.…”