Chinese Journal of Tissue Engineering Research ›› 2023, Vol. 27 ›› Issue (32): 5085-5090.doi: 10.12307/2023.822

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Improvement of delayed-onset muscle soreness by pre-exercise whole-body vibration at 50 Hz

Zhang Xuebin, Ao Wenjun, Jiang Xin, Song Chenglin   

  1. Shenyang Sport University, Shenyang 110102, Liaoning Province, China
  • Online:2023-11-18 Published:2023-03-22
  • Contact: 张学彬,男,1989年生,山东省禹城县人,汉族,沈阳体育学院在读硕士,主管技师(康复医学治疗技术),主要从事运动康复方面的研究。
  • About author:Zhang Xuebin, Master candidate, Technician-in-charge, Shenyang Sport University, Shenyang 110102, Liaoning Province, China
  • Supported by:
    2021 Science and Technology Research Project of Liaoning Disabled Persons' Federation, No. SK2020299 (to SCL)

Abstract: BACKGROUND: Whole-body vibration may be used as a pre-exercise intervention to alleviate symptoms of delayed-onset muscular soreness. However, there is no report on which vibration frequency is more effective
OBJECTIVE: To investigate the effect of whole-body vibration at 50 Hz or 35 Hz before exercise on delayed-onset muscular soreness of the quadriceps muscle after exercise in general male college students.
METHODS: Thirty-one healthy non-athletic male college students, aged (22.7±1.6) years, were randomly divided into a 50 Hz whole-body vibration group (50 Hz-WBV group; n=10), a 35 Hz whole-body vibration group (35 Hz-WBV group; n=11), and a control group (n=10). Delayed-onset muscular soreness of the quadriceps muscle was induced by full squat jumps and weighted half squat jumps. Visual analogue scale score for muscle soreness and maximum voluntary isometric contraction muscle strength were measured 1 day before exercise, immediately after exercise, and 1, 2, 3 and 7 days after exercise. Serum creatine kinase, interleukin-6 and prostaglandin E2 levels were measured at all time points except immediately after exercise and 3 days after exercise.
RESULTS AND CONCLUSION: At 1, 2, and 3 days after exercise, visual analogue scale scores and peak torque values were lower in the 50 Hz-WBV group and 35 Hz-WBV group than the control group (P < 0.05). At 2 days after exercise, visual analogue scale scores were lower in the 50 Hz-WBV group than the 35 Hz-WBV group (P < 0.05); at 2 and 3 days after exercise, the reduction in peak torque values was lower in the 50 Hz-WBV group than the 35 Hz-WBV group (P < 
0.05). Serum creatine kinase levels were lower in the 50 Hz-WBV group than the control group at 1 and 2 days after exercise (P < 0.05), and the serum creatine kinase level in the 35 Hz- WBV group were lower than that in the control group at 2 days after exercise (P < 0.05). Interleukin-6 levels, compared with the baseline, were not statistically different at any time point in the 50 Hz-WBV group (P > 0.05), but were significantly higher in the 35 Hz-WBV group at 1 day after exercise (P < 0.05) as well as in the control group at 1 and 2 days after exercise (P < 0.05). Prostaglandin E2 levels were significantly higher in all the three groups at 1 day after exercise compared with the baseline (P < 0.05). These results suggest that the pre-exercise whole-body vibration alleviates delayed-onset muscular soreness and reduces strength loss that occur after exercise, as well as has a beneficial effect on related blood indicators. Moreover, whole-body vibration at 50 Hz is more effective than that at 35 Hz.

Key words: delayed-onset muscle soreness, whole-body vibration, frequency, pain, muscle strength, creatine kinase, serum interleukin-6, prostaglandin E2

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