Relationships Between Self-reported Physical Activity and Physical Fitness in Active Men

Knapik, Joseph J.; Zoltick, Jerel M.; Rottner, H. C.; Phillips, Jill; Bielenda, Christine C.; Jones, Bruce H.; Drews, Frederick R.

doi:10.1016/s0749-3797(18)30716-5

Cited by 36 publications

(15 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Second, physical activity data were self-reported and may have been susceptible to recall or response biases. However, self-reported physical activity has been shown to correspond to objective measures 3,5,7 and it correlated highly with objectively measured physical fitness within this study. Third, this cohort had stable CHD and was predominantly male, thereby limiting generalizability to women and other populations.…”

Section: Discussionsupporting

confidence: 45%

Effect of Physical Activity Level on Biomarkers of Inflammation and Insulin Resistance Over 5 Years in Outpatients With Coronary Heart Disease (from the Heart and Soul Study)

Jarvie

Whooley

Regan

et al. 2014

The American Journal of Cardiology

View full text Add to dashboard Cite

Higher levels of physical activity are associated with lower rates of coronary heart disease (CHD). Prior studies suggest this is partly due to lower levels of inflammation and insulin resistance. We sought to determine whether physical activity level was associated with inflammation or insulin resistance during a 5-year period in outpatients with known CHD. We evaluated 656 participants from the Heart and Soul Study, a prospective cohort study of outpatients with documented CHD. Self-reported physical activity frequency was assessed at baseline and after 5 years of follow-up. Participants were classified as low versus high activity at each visit, yielding 4 physical activity groups: stable low activity, decreasing activity (high at baseline to low at Year 5), increasing activity (low at baseline to high at Year 5), and stable high activity. We compared Year 5 markers of inflammation (C-reactive protein [CRP], interleukin-6, and fibrinogen) and insulin resistance (insulin, glucose, and A1c) across the 4 activity groups. After 5-years of follow-up, higher activity was associated with lower mean levels of all biomarkers. In the fully adjusted regression models CRP, interleukin-6, and glucose remained independently associated with physical activity frequency (log CRP p-trend across activity groups = 0.03; log interleukin-6 p-trend = 0.01; log glucose p-trend = 0.003). Individuals with Stable High Activity typically had the lowest levels of biomarkers. In conclusion, in this novel population of outpatients with known CHD followed for 5 years, higher physical activity frequency was independently associated with lower levels of CRP, interleukin-6, and glucose.

show abstract

Section: Discussionsupporting

confidence: 45%

Effect of Physical Activity Level on Biomarkers of Inflammation and Insulin Resistance Over 5 Years in Outpatients With Coronary Heart Disease (from the Heart and Soul Study)

Jarvie

Whooley

Regan

et al. 2014

The American Journal of Cardiology

View full text Add to dashboard Cite

show abstract

“…Strong correlations of PA with aerobic fitness may perhaps be observed only for vigorous sweatproducing activity [21]. Furthermore, published correlations with fitness have been largest for the hardest form of activity [18,[22][23][24] and others have concluded that the ability to assess habitual PA was greater for vigorous than lower intensity PA [25]. In the Surgeon GeneralÕs report [2], a median correlation of 0.41 was reported across 12 studies assessing the relation between measures of cardiorespiratory endurance and self-reported PA. Singh et al showed that moderate and light-intensity questions were not correlated with physical fitness [21].…”

Section: Discussionmentioning

confidence: 99%

Reliability and validity of self-reported physical activity in the Nord-Trøndelag Health Study (HUNT 2)

Rangul²,

et al. 2007

View full text Add to dashboard Cite

The HUNT 2 question for "hard" LTPA has acceptable repeatability and appears to be a reasonably valid measure of vigorous activity, as reflected in moderate correlations with several other measures including VO(2max), and with corresponding results from IPAQ and ActiReg. The HUNT 2 question on occupational activity had good repeatability and appears to best reflect time spent in moderate activity, with moderate associations with measured time at intermediate intensity levels. The "light" activity question from HUNT 2 had poor reproducibility and did not correlate well with most of the comparison measures. Thus, the "hard" PA and the occupational activity question should be useful measures of vigorous PA, if time and space allow only very brief assessment. The utility of the "light" PA questions remains to be established.

show abstract

“…Smoking also affects work performance, especially endurance exercise. Reports show that aerobic (VO 2 max) and anaerobic power are reduced in smokers of various ages (Dressendorfer et al, 1983;Chatterjee et al, 1987;Fukuba et al, 1993;Knapik et al, 1993;Louie 2001;Bernaards et al, 2003). Hirsch et al (1985) reported that VO 2 max and anaerobic threshold were acutely reduced in apparently healthy adult smokers immediately after smoking, as compared to five hours after smoking, presumably because of elevated carbon monoxide and nicotine.…”

Section: Introductionmentioning

confidence: 99%

Effects of Habitual Smoking on Cardiorespiratory Responses to Sub-maximal Exercise

Kobayashi

Takeuchi

Hosoi

et al. 2004

J. Physiol. Anthropol.

View full text Add to dashboard Cite

The effects of habitual cigarette smoking on cardiorespiratory responses to sub-maximal and maximal work were evaluated in nine adult nonsmokers and nine smokers with a mean age of 33 yr. A maximal treadmill test was followed by three tests at 45, 60 and 75% of each subject's VO 2 max. Compared to nonsmokers, the habitual smokers had a non-significantly lower VO 2 max in L/min and per lean body mass (9 and 6%, respectively), but had higher %fat (pϽ0.01), resulting in a significantly lower VO 2 max per kg body wt (13%, pϽ0.03). Maximal exercise ventilation (V E ) was 16% lower in smokers. During sub-maximal work at equivalent exercise stress levels in the two groups, the V E /VO 2 ratio was higher in smokers by an average of 11% because VO 2 was lower and the respiratory exchange ratio values were significantly elevated in smokers at 75% of VO 2 max. Blood lactate concentrations in smokers were higher as workloads increased and O 2 pulse (VO 2 /HR) was significantly lower throughout, indicating reduced O 2 extraction, probably due to carbon monoxide. The resting HR was significantly higher in smokers and the HR recovery following all three submaximal exercises was significantly slower in smokers. These results show that detrimental cardiorespiratory effects of chronic cigarette smoking in apparently healthy individuals are evident at moderate exercise levels as reduced gas exchange efficiency in lungs and muscles.

show abstract

Relationships Between Self-reported Physical Activity and Physical Fitness in Active Men

Cited by 36 publications

References 22 publications

Effect of Physical Activity Level on Biomarkers of Inflammation and Insulin Resistance Over 5 Years in Outpatients With Coronary Heart Disease (from the Heart and Soul Study)

Effect of Physical Activity Level on Biomarkers of Inflammation and Insulin Resistance Over 5 Years in Outpatients With Coronary Heart Disease (from the Heart and Soul Study)

Reliability and validity of self-reported physical activity in the Nord-Trøndelag Health Study (HUNT 2)

Effects of Habitual Smoking on Cardiorespiratory Responses to Sub-maximal Exercise

Contact Info

Product

Resources

About