Effect of Isometric and Isotonic Exercise Programs upon Muscular Endurance

Dennison, John D.; Howell, Maxwell L.; Morford, W. R.

doi:10.1080/10671188.1962.10762104

Cited by 7 publications

(4 citation statements)

References 9 publications

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“…The difference in the means of improvement between the two groups was not statistically significant. 14 Clinicians could consider isometric training as an alternative for isotonic training to increase muscle mass, especially in elderly individuals. Static strength training has been shown to increase muscle strength and decrease the weights of old rats.…”

Section: Discussionmentioning

confidence: 99%

Eight Weeks of High-Intensity Interval Static Strength Training Improves Skeletal Muscle Atrophy and Motor Function in Aged Rats via the PGC-1α/FNDC5/UCP1 Pathway

Liu¹,

Guo²,

Liu³

et al. 2021

CIA

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Background: Sarcopenia is a syndrome characterized by the loss of skeletal muscle mass and strength. Most studies have focused on dynamic resistance exercises for preventing muscular decline and maintaining the muscle strength of older individuals. However, this training mode is impractical for older people with osteoarthritis and a limited range of motion. The static strength training mode is more suitable for older people. Therefore, a determination of the effect and mechanism of static strength training on sarcopenia is critical. Methods: In this study, we developed a training device designed to collect training data and evaluate the effects of static training on the upper limbs of rats. The expression of PGC-1α was locally blocked by injecting a siRNA at the midpoint of the biceps to determine whether PGC-1α signal transduction participates in the effects of high-intensity interval static training on muscle strength. Then, the rat's motor capacity was measured after static strength training. Immunohistochemistry and Western blotting were applied to determine PGC-1α/FNDC5/ UCP1 expression levels in the muscle and adipose tissue. The serum irisin level was also detected using an enzyme-linked immunosorbent assay (ELISA). Results: Increased levels of serum irisin and local expression of FNDC5, PGC-1α, and UCP1 were observed in the biceps brachii and surrounding fatty tissue after static strength training. Static strength training showed an advantage in reducing body weight and white fat accumulation while increasing the muscle fiber volume, which resulted in a longer training time and shorter rest time. Conclusion:Overall, these results indicated that high-intensity interval static training prevents skeletal muscle atrophy and improves the motor function of aged rats through the PGC-1α/FNDC5/UCP1 signaling pathway.

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Section: Discussionmentioning

confidence: 99%

Eight Weeks of High-Intensity Interval Static Strength Training Improves Skeletal Muscle Atrophy and Motor Function in Aged Rats via the PGC-1α/FNDC5/UCP1 Pathway

Liu¹,

Guo²,

Liu³

et al. 2021

CIA

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“…Many of these studies included measurement of isotonic endurance only (9,11,14,19,22,25,26,27,28), whereas others gave tests of isometric endurance only (1,20). The findings of Berger (3) indicate the biased nature of isometric and isotonic strength tests.…”

Section: Comparative Effects Of Isometric and Isotonic Training Progrmentioning

confidence: 91%

Comparative Effects of Isometric and Isotonic Training Programs on Relative-Load Endurance and Work Capacity

Noble

McCraw

1973

Research Quarterly. American Association for Health, Physical E

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“…It has been reported in several studies (6, 9,14,17,18) that muscular endurance is improved at approximately the same rate by both isometric and isotonic exercise programmes. "Push-ups" (or "press-ups") have been recognised as a suitable measure of muscular endurance (4,5,10,15).…”

Section: Review Of Literaturementioning

confidence: 92%

Effects of an Isotonic and a combination Isometric-Isotonic exercise programme upon push-up performance

Barker¹

1972

Br J Sports Med

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The effects of a repetition push-up exercise programme and a repetition combination isometric-isotonic push-up exercise programme upon muscular endurance as measured by maximum repetition of push-ups were studied. Thirty-four male subjects enrolled in a wrestling activity class were equated into three groups on the basis of maximum repetition push-up performance. Group 1 (N = 12) performed maximum repetition push-ups; Group 2 (N = 1) did maximum repetition combination isometric-isotonic push-ups; and Group 3 (N = 11) served as the control group.

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Effect of Isometric and Isotonic Exercise Programs upon Muscular Endurance

Cited by 7 publications

References 9 publications

Eight Weeks of High-Intensity Interval Static Strength Training Improves Skeletal Muscle Atrophy and Motor Function in Aged Rats via the PGC-1α/FNDC5/UCP1 Pathway

Eight Weeks of High-Intensity Interval Static Strength Training Improves Skeletal Muscle Atrophy and Motor Function in Aged Rats via the PGC-1α/FNDC5/UCP1 Pathway

Comparative Effects of Isometric and Isotonic Training Programs on Relative-Load Endurance and Work Capacity

Effects of an Isotonic and a combination Isometric-Isotonic exercise programme upon push-up performance

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