Cardiovascular responses to static extension and flexion of arms and legs

Ken Tokizawa, Masaki Mizuno, Naoyuki Hayashi, Isao Muraoka

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This study compared cardiovascular responses to static extension and flexion exercises at four upper and lower limb joints. Eight males performed a 2 min static contraction at 30% of maximal voluntary torque followed immediately by 2 min post-exercise muscle ischaemia (PEMI) using each of four joints: the wrist, elbow, ankle, and knee. In the PEMI, an occlusion cuff placed around the proximal portion of the exercising muscle was inflated to 250 mmHg immediately before the cessation of exercise. Mean arterial pressure (MAP), heart rate (HR), calf blood flow, and calf vascular conductance (CVC) in the non-exercised calf were measured. There was a significant interaction for direction of movement (extension vs. flexion) and limb (upper vs. lower) in HR and CVC during both exercise and PEMI; extension in the wrist and elbow evoked a greater increase in HR and a greater decrease in CVC than flexion, whereas flexion in the ankle and knee elicited a greater increase in HR and a greater decrease in CVC than extension. These results suggest that the cardiovascular responses to extension and flexion differ between arms and legs, partly arising from the activation of the muscle metaboreflex.

Original languageEnglish
Pages (from-to)249-252
Number of pages4
JournalEuropean Journal of Applied Physiology
Volume97
Issue number2
DOIs
Publication statusPublished - 2006 May

Fingerprint

Leg
Arm
Blood Vessels
Muscles
Heart Rate
Ischemia
Ankle
Knee
Wrist Joint
Elbow Joint
Torque
Elbow
Wrist
Upper Extremity
Lower Extremity
Arterial Pressure
Joints

Keywords

  • Exercise pressor reflex
  • Extensor
  • Flexor

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health
  • Physiology
  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

Cite this

Cardiovascular responses to static extension and flexion of arms and legs. / Tokizawa, Ken; Mizuno, Masaki; Hayashi, Naoyuki; Muraoka, Isao.

In: European Journal of Applied Physiology, Vol. 97, No. 2, 05.2006, p. 249-252.

Research output: Contribution to journalArticle

Tokizawa, Ken ; Mizuno, Masaki ; Hayashi, Naoyuki ; Muraoka, Isao. / Cardiovascular responses to static extension and flexion of arms and legs. In: European Journal of Applied Physiology. 2006 ; Vol. 97, No. 2. pp. 249-252.
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