So physical fitness experts suggest some form of cross training to improve muscle balance and to help you stay injury free.

所以体能专家建议做一些交叉锻炼来改善肌肉平衡，帮助你免于受伤。

Is it just weights? Is it also.It's cross training is what it is and I had to do something called a Burpee.

只有哑铃吗 还是说 是交叉训练 我必须做波比操。

It is one of the most effective cross training techniques for athletes and sportspeople who require the ultimate cardiovascular and endurance conditioning as it improves their aerobic capacity and muscular strength in a short period of time.

对于需要终极心血管和耐力调节的运动员和运动员来说，它是最有效的交叉训练技术之一，因为它可以在短时间内提高他们的有氧能力和肌肉力量。