Intense Triceps Surae Contraction Increases Lower Extremity Venous Blood Flow

Tsuda, Kouji; Takahira, Naonobu; Sakamoto, Miki; Shinkai, Ato; Kaji, Kazuki; Kitagawa, Jun

doi:10.2490/prm.20170009

Cited by 7 publications

(12 citation statements)

References 43 publications

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“…15 These values resulted in a sample size of at least 16 participants at 95% power. With reference to this calculation and previous studies, 5,7,16 we determined 20 as the number of participants required in the present study.…”

Section: Sample Sizementioning

confidence: 99%

“…A number of clinical studies have shown that AAE increased venous flow in the legs. [5][6][7][8][9][10] However, adequate conditions to maximize the efficacy of AAE on venous flow have not been established yet.…”

Section: Introductionmentioning

confidence: 99%

“…We previously documented the association between heightened calf contraction and enhanced venous flow, applying resistance against plantar flexion using a muscle training machine to quantitatively heighten the plantar flexion force. 5 Therefore, we next need to present a more practical method of applying resistance for more efficient enhancement of venous flow than that with the training machine, which seems to be less efficient for thromboprophylactic use in clinical practice. We focused on exercise bands with different tensions as an easy tool for applying resistance to plantar flexion during AAE in clinical practice.…”

Section: Introductionmentioning

confidence: 99%

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Effect of resistance of the exercise band on the peak femoral vein velocity during active ankle flexion

et al. 2019

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Objective To examine the resistance effect of using an exercise band on the lower extremity venous velocity during active ankle flexion. Methods Twenty healthy young adult men performed active ankle flexion every 2 s either with no band or with two exercise bands, marked red and silver in the order of increasing tension. They held the band in its natural length with an elbow in extension and an ankle in maximal dorsiflexion at initiation of each active plantar flexion in each posture. The peak velocity in the right superficial femoral vein was measured in each condition. Results Holm’s multiple comparisons revealed significant increases in the mean (individual 95% confidence intervals) peak velocities (cm/s) with no, red, and silver bands (35.8 (28.9–42.7), 46.5 (38.8–54.3), and 56.9 (47.0–66.8), respectively, in the sitting posture, and 50.7 (39.2–62.3), 60.7 (46.8–74.6), and 69.0 (55.3–82.7), respectively, in the supine posture; all p < 0.01). Conclusion Resistance with the exercise bands efficiently enhanced the femoral venous velocity during active ankle plantar flexion.

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Section: Sample Sizementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of resistance of the exercise band on the peak femoral vein velocity during active ankle flexion

et al. 2019

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“…Flexion and extension at the ankle would result in change in length of the Soleus, which in turn is expected to change pressure within the deep venous system resulting in pumping of blood similar to the natural mechanism. The added component of compression synchronised with the ankle movement is meant to improve the efficacy of the mechanism [4]. The mechanism was implemented by actuating a standard ankle foot orthotic with only one degree of freedom.…”

Section: Proposed Designmentioning

confidence: 99%

“…Larger emboli occlude the larger pulmonary arteries. A large 'saddle embolus' straddles the pulmonary arteries and causes acute right heart failure [2], [3], [4], [5], [6], [7]. The veins within the Soleus muscle, which are located in the deep venous system of the leg, are prone to venous stasis.…”

Section: Introductionmentioning

confidence: 99%