His human flagpole images have since gone viral after being shared hundreds of times on Facebook and Twitter.
杰克逊的人体旗帜图片自从在脸书和推特上达到上百次的分享量后迅速走红。
A survey of 4,000 sports professionals in America named calisthenics training as their favoured fitness technique for 2015.
2015年美国的一项调查表明,有4000名职业体育选手将软体操训练作为他们最爱的健身方式。
He originally took up calisthenics as a hobby but now runs Saturday morning classes for men and women ageing from teenagers to his oldest client who is over 50.
杰克逊起初将软体操作为一项兴趣爱好,但如今他每周六早晨都会给男女老少上课,其中年纪最大的那位已年过50。