The effect of acupressure stimulation of ST-36 - Zusanli, point on lower limbs explosive strength

IntroductionImprovement in motor ability and activity in terms of qualities such as strength, speed and stamina is important to overcome external resistance and to improve muscle function. The aim of this study was to determine the effect of stimulating the BAP - Biological Active Point (ST-36 - Zusanli) on the lower limbs, and its explosive strength in young men.MethodsSubjects studying physical therapy were recruited from the Podhale State Higher Vocational School in Nowy Targ, Poland. Two measurements of lower limbs explosive strength were conducted within one week of each other on the same subjects. During the first measurement the participants' “a placebo” point BAP (UB-60 - Kunlun) was stimulated by acupressure. A week later, the identical measurement of explosive strength, preceded by a stimulation of BAP (ST-36 - Zusanli), was carried out at the same time. Participant's body weight, height and lower limbs explosive strength were measured by means using aof bio-impedence scales, an altimeter and Myotest. A 15 min warm-up was conducted before the experiments. The experiments were set in advance by a sound signals made by an acupuncter. Participants taking part in the study set their feet at the width of their shoulders, the belt with the tool was fastened with strips at the height of the greater trochanters and the participant had his hands placed near the anterior superior iliac spine to exclude the option of components of upper limbs action. After hearing the signal and “hop” command, the participant performed 5 jumps as high as possible. The experiment was finished after a second sound signal of the tool, following which the measurement was recorded.ResultsStimulation of BAP ST-36 resulted in a 0.35 cm increase in jump height and 11.5 cm/s increase in speed, both differences being statistically significant (where p < 0.05 and p = 0.02, respectively). The strength (W/kg) and level of generated power (N/kg) were also significantly increased, where p = 0.047 and p = 0.03, respectively. Using UB-60 as a “placebo” point showed no statistically significant differences.ConclusionStimulation of BAP ST-36 point improved the level of strength and speed abilities on the lower limbs explosive strength in men.