Abstract
Acute and long-term effects of resistance exercise combined with vascular occlusion on muscular function were investigated. Changes in integrated electromyogram with respect to time (iEMG), vascular resistive index, and plasma lactate concentration were measured in five men either during or after elbow flexion exercises with the proximal end of the arm occluded at 0-100 mmHg. The mean iEMG, postexercise hyperemia, and plasma lactate concentration were all elevated with the increase in occlusion pressure at a low-intensity exercise, whereas they were unchanged with the increase in occlusion pressure at high-intensity exercise. To investigate the long-term effects of low-intensity exercise with occlusion, older women (n = 24) were subjected to a 16-wk exercise training for elbow flexor muscles, in which low-intensity [~50-30% one repetition maximum (1 RM)] exercise with occlusion at ~110 mmHg (LIO), low-intensity exercise without occlusion (LI), and high to medium-intensity (~80-50% 1 RM) exercise without occlusion (HI) were performed. Percent increases in both cross-sectional area and isokinetic strength of elbow flexor muscles after LIO were larger than those after LI (P < 0.05) and similar to those after HI. The results suggest that resistance exercise at an intensity even lower than 50% 1 RM is effective in inducing muscular hypertrophy and concomitant increase in strength when combined with vascular occlusion.
| Original language | English |
|---|---|
| Pages (from-to) | 2097-2106 |
| Number of pages | 10 |
| Journal | Journal of Applied Physiology |
| Volume | 88 |
| Issue number | 6 |
| Publication status | Published - 2000 |
| Externally published | Yes |
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Keywords
- Force-velocity relation
- Ischemia
- Muscular hypertrophy
ASJC Scopus subject areas
- Physiology
- Endocrinology
- Orthopedics and Sports Medicine
- Physical Therapy, Sports Therapy and Rehabilitation
Cite this
Effects of resistance exercise combined with moderate vascular occlusion on muscular function in humans. / Takarada, Yudai; Takazawa, Haruo; Sato, Yoshiaki; Takebayashi, Shigeo; Tanaka, Yasuhiro; Ishii, Naokata.
In: Journal of Applied Physiology, Vol. 88, No. 6, 2000, p. 2097-2106.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effects of resistance exercise combined with moderate vascular occlusion on muscular function in humans
AU - Takarada, Yudai
AU - Takazawa, Haruo
AU - Sato, Yoshiaki
AU - Takebayashi, Shigeo
AU - Tanaka, Yasuhiro
AU - Ishii, Naokata
PY - 2000
Y1 - 2000
N2 - Acute and long-term effects of resistance exercise combined with vascular occlusion on muscular function were investigated. Changes in integrated electromyogram with respect to time (iEMG), vascular resistive index, and plasma lactate concentration were measured in five men either during or after elbow flexion exercises with the proximal end of the arm occluded at 0-100 mmHg. The mean iEMG, postexercise hyperemia, and plasma lactate concentration were all elevated with the increase in occlusion pressure at a low-intensity exercise, whereas they were unchanged with the increase in occlusion pressure at high-intensity exercise. To investigate the long-term effects of low-intensity exercise with occlusion, older women (n = 24) were subjected to a 16-wk exercise training for elbow flexor muscles, in which low-intensity [~50-30% one repetition maximum (1 RM)] exercise with occlusion at ~110 mmHg (LIO), low-intensity exercise without occlusion (LI), and high to medium-intensity (~80-50% 1 RM) exercise without occlusion (HI) were performed. Percent increases in both cross-sectional area and isokinetic strength of elbow flexor muscles after LIO were larger than those after LI (P < 0.05) and similar to those after HI. The results suggest that resistance exercise at an intensity even lower than 50% 1 RM is effective in inducing muscular hypertrophy and concomitant increase in strength when combined with vascular occlusion.
AB - Acute and long-term effects of resistance exercise combined with vascular occlusion on muscular function were investigated. Changes in integrated electromyogram with respect to time (iEMG), vascular resistive index, and plasma lactate concentration were measured in five men either during or after elbow flexion exercises with the proximal end of the arm occluded at 0-100 mmHg. The mean iEMG, postexercise hyperemia, and plasma lactate concentration were all elevated with the increase in occlusion pressure at a low-intensity exercise, whereas they were unchanged with the increase in occlusion pressure at high-intensity exercise. To investigate the long-term effects of low-intensity exercise with occlusion, older women (n = 24) were subjected to a 16-wk exercise training for elbow flexor muscles, in which low-intensity [~50-30% one repetition maximum (1 RM)] exercise with occlusion at ~110 mmHg (LIO), low-intensity exercise without occlusion (LI), and high to medium-intensity (~80-50% 1 RM) exercise without occlusion (HI) were performed. Percent increases in both cross-sectional area and isokinetic strength of elbow flexor muscles after LIO were larger than those after LI (P < 0.05) and similar to those after HI. The results suggest that resistance exercise at an intensity even lower than 50% 1 RM is effective in inducing muscular hypertrophy and concomitant increase in strength when combined with vascular occlusion.
KW - Force-velocity relation
KW - Ischemia
KW - Muscular hypertrophy
UR - http://www.scopus.com/inward/record.url?scp=0033923607&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0033923607&partnerID=8YFLogxK
M3 - Article
C2 - 10846023
AN - SCOPUS:0033923607
VL - 88
SP - 2097
EP - 2106
JO - Journal of Applied Physiology Respiratory Environmental and Exercise Physiology
JF - Journal of Applied Physiology Respiratory Environmental and Exercise Physiology
SN - 8750-7587
IS - 6
ER -