Crossfit Vs. Circuit-trained Individuals

Sobrero, Gina L.; Inman, Chase; Stone, Whitley; Zagdsuren, Battogtokh; Arnett, Scott W.; Shafer, Mark; Lyons, Thomas S.; Maples, Jill M.; Crandall, Jason; Callahan, Zac

doi:10.1249/01.mss.0000478923.27125.12

Cited by 6 publications

(9 citation statements)

References 0 publications

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“…This finding could be due to a potential ceiling effect within the male participants for the push-up exercise. While these data support previous work for improvements on the push-up test [20], no studies could be identified that utilized the pull-up test as an outcome following a HIFT intervention.…”

Section: Discussionsupporting

confidence: 76%

“…Previous research has shown improvements in power which were not observed within the present study. While Sobero et al [20] noted improvements in both upper (medicine ball put; 86.6 ± 12.8 vs. 94.6 ± 12.7 in) and lower body (vertical jump; 11.3 ± 3.4 vs. 14.2 ± 2.5 in) power following 10 weeks of HIFT, these data do not corroborate their findings with respect to upper body power. Interestingly, one potential reason for these discrepancies is perhaps the unit of measurement chosen (meters versus inches, respectively) for analysis.…”

Section: Discussionmentioning

confidence: 75%

“…However, females improved significantly for the push-up test while males improved for the pull-up test. While others [20,43] have noted improvement in upper body muscular endurance following HIFT, none have reported differences between sexes with respect to improvement in specific movements (i.e., pushing versus pulling). This finding could be due to a potential ceiling effect within the male participants for the push-up exercise.…”

Section: Discussionmentioning

confidence: 91%

“…Much of the research around HIFT interventions, thus far, centers on its effects on many of these general physical skills [20,21,22,23,24]. While the existing literature on HIFT highlights its utility in these endeavors, a recent meta-analysis suggests that few, if any, high-quality and low bias studies exist within this field [25].…”

Section: Introductionmentioning

confidence: 99%

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Multiple Fitness Improvements Found after 6-Months of High Intensity Functional Training

Cosgrove

Crawford

Heinrich

2019

Sports

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While short-term high intensity functional training (HIFT) effects have been established, fitness improvements from program participation exceeding 16 weeks are unknown. This study examined the effectiveness of participation in HIFT through CrossFit. During 2013–2014, fitness performance testing was incorporated into an ongoing university CrossFit program. Participants included 45 adults (23 women, 22 men) with 0–27 months of HIFT experience (grouped into 0–6 months and 7+ months). Participants completed three separate days of assessments across 10 fitness domains before and after participating in the program for six months. For each sex, 2 (Time) × 2 (Group) RANOVA were used for each fitness test. For women, significant Time effects were found for four fitness domains (i.e., flexibility, power, muscular endurance, and strength), and a Group × Time interaction for cardiorespiratory endurance, with the 0–6-month group improving more. For men, significant Time effects were found for flexibility, muscular endurance, and strength. These data provide evidence for multiple fitness improvements after six months of CrossFit participation with greater 1.5 mile run time improvement among women with less experience.

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Section: Discussionsupporting

confidence: 76%

Section: Discussionmentioning

confidence: 75%

Section: Discussionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

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Multiple Fitness Improvements Found after 6-Months of High Intensity Functional Training

Cosgrove

Crawford

Heinrich

2019

Sports

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“…Part of the reason for this popularity is HIFT’s demonstrated efficacy for a wide range of health and fitness measures ranging from improvements in body composition to aerobic capacity [2,3,4,5,6]. However, recent work shows that the magnitude of these effects on body structures and functions may be rather modest in nature with potentially differing directions [7].…”

Section: Introductionmentioning

confidence: 99%

Are Changes in Physical Work Capacity Induced by High-Intensity Functional Training Related to Changes in Associated Physiologic Measures?

Crawford

Drake

Carper

et al. 2018

Sports

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High-Intensity Functional Training (HIFT) is a novel exercise intervention that may test body systems in a balanced and integrated fashion by challenging individuals’ abilities to complete mechanical work. However, research has not previously determined if physical work capacity is unique to traditional physiologic measures of fitness. Twenty-five healthy men and women completed a six-week HIFT intervention with physical work capacity and various physiologic measures of fitness assessed pre- and post-intervention. At baseline, these physiologic measures of fitness (e.g., aerobic capacity) were significantly associated with physical work capacity and this relationship was even stronger at post-intervention assessment. Further, there were significant improvements across these physiologic measures in response to the delivered intervention. However, the change in these physiologic measures failed to predict the change in physical work capacity induced via HIFT. These findings point to the potential utility of HIFT as a unique challenge to individuals’ physiology beyond traditional resistance or aerobic training. Elucidating the translational impact of increasing work capacity via HIFT may be of great interest to health and fitness practitioners ranging from strength/conditioning coaches to physical therapists.

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Energy balance dynamics during short-term high-intensity functional training

Schubert

Palumbo

2019

Appl. Physiol. Nutr. Metab.

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CrossFit^TM (CF) is a form of high-intensity functional training (HIFT) that focuses on training across the entire spectrum of physical fitness. CF has been shown to improve a number of indicators of health but little information assessing energy balance exists. The purpose of the present study was to investigate energy balance during 1 week of CF training. Men and women (n = 21, mean age and BMI: 43.5 ± 8.4 y; 27.8 ± 4.9 kg·m^-2), with ≥ 3 months CF experience, had body composition assessed via air displacement plethysmography before and after 1 week of CF training. Participants wore ActiHeart monitors to assess total energy expenditure (TEE), activity energy expenditure (AEE), and CF energy expenditure (CF EE). Energy intake was assessed from TEE and Δ body composition. CF EE averaged 605 ± 219 kcal per 72 ± 10 min session. Weekly CF EE was 2723 ± 986 kcal. Participants were in an energy deficit (TEE: 3674 ± 855 kcal·d^-1; EI: 3167 ± 1401 kcal·d^-1). Results of the present study indicate that CF training can account for a significant portion of daily activity energy expenditure. The weekly expenditure is within levels shown to induce clinically meaningful weight loss in overweight/obese populations.

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Crossfit Vs. Circuit-trained Individuals

Cited by 6 publications

References 0 publications

Multiple Fitness Improvements Found after 6-Months of High Intensity Functional Training

Multiple Fitness Improvements Found after 6-Months of High Intensity Functional Training

Are Changes in Physical Work Capacity Induced by High-Intensity Functional Training Related to Changes in Associated Physiologic Measures?

Energy balance dynamics during short-term high-intensity functional training

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