Which sports have the highest exercise values?

The following is an English translation of my old note made almost 30 years ago of an article in Zhongguo Qingnian Bao (China Youth Newspaper), March 22, 1981, issue#3689. The article is titled "Which sports have the highest exercise values?". It has no information on what methods they used to create this table and what medical science research was behind the numbers. But for what it's worth, it looks interesting, and seems to be consistent with our common sense.

	jogging	bicycle	swim- ming	skating	hand- ball	basket- ball	tennis	gymnas -tics	walking	softball
heart/lung endurance	21	19	21	18	19	19	16	10	13	6
muscle endurance	20	18	20	17	18	17	16	13	14	8
muscle strength	17	16	14	15	15	15	14	16	11	7
flexibility	9	9	16	13	16	13	14	19	7	9
balance	17	18	12	20	17	16	16	15	8	7
weight control	21	20	15	17	19	19	16	12	13	7
muscle building	14	15	14	17	11	13	13	18	11	5
digestion	13	12	13	11	13	10	12	11	11	8
sleep	16	15	16	15	12	12	11	12	14	7
sum	148	142	140	140	140	134	128	126	102	64

The word "gymnastics" is actually "柔软体操" in Chinese, or "flexibility gymnastics" literally, and "walking" is "散步" or "slow walking", not vigorous walking as in modern day health advice. Needless to say, the sports in the table are to be treated as sports, not leisurely activities. For instance, swimming does not mean you immerse your body in the pool for a whole afternoon and swing your arms once every few minutes, and biking is not slowly cycling around a beautiful lake in a family outing. Have you heard of people say they gained weight by "swimming"? Now you know why.