Decrease in regional body fat after long-term high-intensity interval training

Azuma, Koichiro; Osawa, Yusuke; Tabata, Shogo; Katsukawa, Fuminori; Ishida, Hiroyuki; Oguma, Yuko; Kawai, Takeshi; Itoh, Hiroshi; Okuda, S.; Oguchi, Shuji; Ohta, Atsumi; Kikuchi, Hiroe; Murata, Mitsuru; Matsumoto, Hideo

doi:10.7600/jpfsm.6.103

Cited by 3 publications

(1 citation statement)

References 27 publications

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“…Exercises that continuously increase heart rate and energy expenditure are understood to help weight control and cardiovascular health [ 62 ]. HiInEx can induce the same effect as continuous moderate-intensity exercise, sometimes even better [ 63 ]. Trapp et al reported that HiInEx only needed 50% of the time to achieve the same energy consumption as steady-state exercise and reduced body fat by 2.5 kg after a 15-week intervention [ 64 ].…”

Section: Discussionmentioning

confidence: 99%

The Efficacy of Brief School-Based Exercise Programs in Improving Pubertal Bone Mass and Physical Fitness: A Randomized Controlled Trial

Xin

Tian

et al. 2021

IJERPH

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Purpose: To examine the effects of three types of school-based exercises on bone health and physical fitness function in Chinese boys and girls. Methods: One hundred and seventy-four Chinese boys and girls were randomly assigned into four groups: (1) sham exercise (ShEx); (2) high-impact exercise (HiEx); (3) high-impact exercise with various directions (HiExVi); and (4) high-intensity interval exercise (HiInEx). Speed of sound (SOS) and physical fitness parameters were determined before and after six-month intervention. Results: At the end of six-month intervention, participants in all groups show an increment of SOS compared with the baseline (p < 0.05), and the changes were higher in HiEx (mean: 38.878 m/s, 95% CI: 32.885~44.872, p = 0.001) and HiExVi groups (49.317 m/s, 42.737~55.897, p < 0.001) compared with ShEx group (20.049 m/s, 13.751~26.346). Six-month exercise training generated a reduction of percent of body fat (PBF) and waist–hip ratio (WHR) (p < 0.05). The decrease of PBF was greater in HiExVi (−1.222%, −1.820~−0.624, p = 0.012) and HiInEx groups (−1.395%, −1.809~−0.982, p = 0.003), whereas the reduction of WHR was larger in HiEx (−0.026, −0.039~−0.014, p = 0.009), HiExVi (−0.024, −0.036~−0.012, p = 0.021), and HiInEx groups (−0.035, −0.046~−0.024, p < 0.001) compared with ShEx group. Balance function (BLF), vital capacity (VC), standing long jump (SLJ), and sit up (SU) increased in all intervention groups (p < 0.05). The BLF increased in HiEx (6.332 s, 4.136~8.528, p = 0.001), HiExVi (10.489 s, 8.934~12.045, p < 0.001), and HiInEx groups (9.103 s, 7.430~10.776, p < 0.001) showed a greater change than that of ShEx group (1.727 s, 0.684 ~2.770). The increment of VC (273.049 mL, 199.510~346.587, p < 0.001) and SU (2.537 times/min, 0.639~4.435, p = 0.017) was higher in HiInEx group, whereas the accrual in SLJ was larger in HiExVi (7.488 cm, 4.936~10.040, p = 0.007) compared with ShEx group (58.902 mL, 7.990 ~109.814; −0.463 times/min, −2.003~1.077; 1.488 cm, −0.654 ~3.630). Conclusion: The brief school-based exercises were effective in improving schoolchildren’s health, but they showed different effects, with HiEx mostly improving bone health, HiInEx largely benefiting physical fitness function, and HiExVi enhancing both bone and physical fitness.

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Section: Discussionmentioning

confidence: 99%

The Efficacy of Brief School-Based Exercise Programs in Improving Pubertal Bone Mass and Physical Fitness: A Randomized Controlled Trial

Xin

Tian

et al. 2021

IJERPH

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The Effect of High-Intensity Interval Training and Continuous Training on the Desnutrin Gene Expression in the Subcutaneous Adipose Tissue and the Quadriceps Femoris Muscle Tissue of Obese Male Rats

Rahmaty

Gaeini

Dolatshahi

et al. 2018

Ann. Appl. Sport Sci

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Background. Desnutrin is an enzyme that catalyzes the first step of cytoplasmic triacylglycerol lipolysis from white adipose tissue and several other tissues, which are disrupted by the obesity and metabolic syndrome. Objectives. The aim of this study was to compare the effect of high-intensity interval training and continuous training on the desnutrin gene expression in the subcutaneous adipose tissue and the quadriceps muscle tissue of obese male rats. Methods. For this purpose, after 12 weeks on a high-fat diet, 30 Wistar rats were divided into two groups: continuous training (n =10) and high-intensity interval training (n=10). Continuous (80%VO2max) and high-intensity interval exercise training (100%VO2max) sessions were conducted according to the principle of overload for six weeks and six sessions per week. Forty-eight hours after the last training session, the abdominal subcutaneous adipose tissue and quadriceps muscle tissue were extracted, and the expression level was assessed using the RT-PCR method. Results. The study showed that the difference between high-intensity interval and continuous training on the desnutrin gene expression subcutaneous adipose tissue was significant (p=0.004), but there were no significant differences (p=0.415) between them in the quadriceps femoris muscle tissue. Conclusion. According to the findings of the present study, in the adipose tissue, continuous training has a greater effect on the desnutrin gene expression than high-intensity interval training. In the muscle tissue, however, there is no difference between these two training exercises.

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The Effect of 10-Week Bodyweight Training on Body Composition and Physical Fitness in Young Males

Lipecki

2018

JKES

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Aim. The aim of the study was to evaluate changes on body compositions and physical fitness in young males performing 10-week bodyweight training. Material and Methods. The study examined body height and composition (body mass, fat percent and body water) in 15 healthy male adults (23.4 ± 3.3 years, 180.3 ± 6.8 cm, 75.7 ± 7.6 kg). The physical parameters included: running speed, agility, explosive power and strength endurance, flexibility and cardiorespiratory capacity. The examinations were conducted before and after 10-week bodyweight training. Results. Results indicated no significant changes in body composition in the men examined. Improvements were observed in measured parameters of physical fitness, agility (4.1%, p<0.01), dynamic strength of the shoulder girdle muscles, the back and the abdomen (by 12.1%, p<0.01), static strength of the right hand (6.7%, p<0.05), strength endurance of the upper limbs (by 30.1%, p<0.01), strength endurance of the body trunk muscles (7.0%, p<0.01), flexibility (20.1%, p<0.05) and cardiorespiratory capacity (6.1%, p<0.05). Conclusion. Bodyweight training without a properly balanced diet has an insignificant effect on changes in body composition of young men. The training concept based on performing bodyweight exercises leads to the significant improvements in muscle strength and endurance, flexibility, agility and cardiovascular endurance. The bodyweight training by Lauren and Clark, due to the high frequency and intensity, is recommended for young people with a high physical fitness level and perseverance.

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Decrease in regional body fat after long-term high-intensity interval training

Cited by 3 publications

References 27 publications

The Efficacy of Brief School-Based Exercise Programs in Improving Pubertal Bone Mass and Physical Fitness: A Randomized Controlled Trial

The Efficacy of Brief School-Based Exercise Programs in Improving Pubertal Bone Mass and Physical Fitness: A Randomized Controlled Trial

The Effect of High-Intensity Interval Training and Continuous Training on the Desnutrin Gene Expression in the Subcutaneous Adipose Tissue and the Quadriceps Femoris Muscle Tissue of Obese Male Rats

The Effect of 10-Week Bodyweight Training on Body Composition and Physical Fitness in Young Males

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