Reason: When throwing javelin, we should master the inclination angle and hand angle of the instrument according to the wind direction and speed. Usually in the case of headwind, the hand angle and inclination angle are small; In the case of downwind, the hand angle and inclination angle should be larger to reduce the effect of air resistance and increase the effect of air lift.
Sports other than javelin throwing: badminton, ball holding, basketball, football, handball, hockey, softball, table tennis, tennis, volleyball, ground throw, rattan ball, gateball, shuttlecock, squash, billiards, golf, bowling, shuffleboard and rugby; Gymnastics, trampoline, skills, bodybuilding, aerobics, sports dance, Mulan boxing figure skating, ice dance, ice hockey, speed skating and skiing; Track and field, cross-country race, skateboarding, roller skating, etc.
The advantages of exercise are: 1, weight control: energy consumption during exercise is relatively high, which can accelerate the burning of fat and achieve the effect of weight control. 2. Increased vital capacity: The demand for oxygen during exercise is relatively large, so you need to take a deep breath first, and then try to exhale gas, so as to achieve the purpose of increasing vital capacity. 3, accelerate the body's metabolism: when doing exercise, you can transport the oxygen and nutrients in the body to all parts of the body, thus improving the efficiency of the body's work function. 4, improve sleep: regular exercise can make the quality of sleep better, usually because exercise can consume energy, just try to avoid exercise before going to bed, so as not to let God work.