Antyllus thus describes the effects of equitation on the human frame: “It strengthens the body, especially the stomach, more than any other mode of exercise; it clears the organs of the senses, and renders them more acute; but it is most inimical to the thorax.” Oribasius (Med. Collect. vi, 24), Pliny (Hist. Nat. xxviii, 4), and Aëtius agree with Antyllus as to the good effects of equitation on the stomach. Hippocrates and Cælius Aurelianus state that equitation is hurtful in disease of the hip-joint. All agree that riding on horseback is hurtful in diseases of the chest.
Of ἀιώρα, or gestation, there were various modes. That in a carriage was very ancient, and is often mentioned by the medical authors. It appears from Pliny (Hist. Nat. xvi, 42), that carriages were generally made of fir, and that the axles were of ilex, mountain ash, or elm. Sometimes, however, the whole chariot was adorned with gold and silver. (Pliny, Hist. Nat. xxiv, 17.) They appear to have been often covered in with skins. (Plutarch, Prob. Roman.) They were generally drawn by horses or mules, sometimes by oxen, and occasionally by slaves. They were so constructed that a person could either sit or lie, according to pleasure. (Galen, Hyg.) At first, according to Pliny, they had only two wheels; the Phrygians, he says, added two more; and Hippocrates mentions that the Scythians introduced the use of six-wheeled carriages. The sedan and chair are often mentioned by the Latin poets, as well as by the medical writers. It is sufficient for our purpose to state that they were so constructed, that one could either sit or lie in them. They sometimes had windows, formed from the lapis specularis. (Juvenal, Sat. iv, 21.) Navigation, or sailing in ships and boats, is often mentioned by ancient authors as a remedial measure. It was practised on the sea or in rivers. According to Aëtius, gestation in general ventilates the natural heat, produces excitement, dispels collected humours, strengthens the frame, and rouses the actions when in an indolent state. (iii, 6.) Celsus has an interesting chapter on gestation. The following rule for the application of it is very judicious: “Gestatio quoque longis et jam inclinatis morbis aptissima est; utilisque est et iis corporibus quæ jam ex toto febre carent, sed adhuc exerceri per se non possunt; et iis quibus lentæ morborum reliquiæ remanent, neque aliter eliduntur.” Upon the whole, he holds it to be a doubtful practice in ardent fever, although sanctioned by the authority of Asclepiades Bithynus: at all events, he insists that gestation is improper when there is any local pain or swelling. After characterizing the different modes of gestation, he remarks respecting them: “Levia quidem genera exercitationis infirmis conveniunt: valentiora vero iis qui jam pluribus diebus febre liberati sunt; aut iis, qui gravium morborum initia sic sentiunt, ut adhuc febre vacent, quod et in tabe, et in stomachi vitiis, et cum aqua cutem subiit, et interdum in regio morbo fit; aut ubi quidam morbi, qualis comitialis, qualis insania est, sine febre, quamvis diu, manent.” (ii, 15.)
Galen eulogises hunting as being an excellent exercise to the body, and an agreeable recreation to the mind. He says, that by the mental excitement which it produces, many have been cured of dangerous diseases. (De parva Pila.) Rhases mentions, that during the prevalence of a certain pestilential epidemic, it was observed, that huntsmen were the only class of people who escaped its contagion. (Contin. iii.) The ancients have transmitted to us many elegant treatises, both in prose and in verse, on this delightful recreation. Those of Xenophon, Oppian, Gratius, and Nemesianus will be found particularly interesting. The younger Pliny attributes his recovery from a certain complaint, to the exercise of hunting. (Epist. v, 6.)
The occupation of fishing, according to Plato, produces neither mental nor bodily excitement. (In Sophista.) Galen and Avicenna briefly mention it as an exercise which may tend to the preservation of health; but neither of them appears to have attached much importance to it. The poet Oppian, however, in his ‘Halieutica’ has celebrated the pleasures and dangers of fishing, with all the enthusiasm of an Isaac Walton, or a Washington Irving.
Oribasius states that swimming tends to warm, strengthen, and attenuate the body. He says that swimming in the sea is particularly applicable in cases of dropsy, eruptive diseases of the skin, and elephantiasis. It is apt, however, he adds, to prove injurious to the head, and also to the nerves when too long continued. We have mentioned in [the fifteenth Section], that the ancients got their bodies rubbed with oil before going into the water. Celsus gives nearly the same account of it, as a remedy for the cure of diseases, as Oribasius. Swimming may be said to have been the national exercise of the ancient Romans. Horace in particular makes frequent allusions to it as an invigorating and manly exercise. The Romans had artificial lakes or ponds connected with their baths, for the purpose of swimming. (Pliny, Epist. v, 6.)
Jumping and dancing, according to Oribasius, occasion a determination downwards, and hence, they may prove useful in cases of amenorrhœa. (Med. Collect. vi, 31.) It appears from a case related in a work attributed to Hippocrates, that jumping was had recourse to, to procure abortion. (De nat. Pueri.) The most eloquent encomiast of dancing is Lucian, who has written an ingenious treatise in praise of it. He contends that it is an excellent training, not only to the body, but also to the mind! He refers to Socrates and other sage philosophers who practised dancing. (De Saltatione.) The Pyrrhic dance of the ancients was particularly celebrated. It was performed by armed men. See Vossius (de Nat. Art. i,) and Athenæus (Deipn. xiv, 19, ed. Schweigh.)
On the Apotherapia or Restorative process, see Galen (Hyg. iii); Oribasius (Med. Collect. vi, 16); and Avicenna (i, 3, 2.) It consisted simply in rubbing the body softly and moderately with oil. According to Galen, the object of it was to relieve the feelings of lassitude, and prevent any bad effects from the exercise. Mercurialis states that, when applied after the bath, it was with the intention of preventing the humidity from being dissipated. Odoriferous ointments and powders were sometimes used instead of the oil. (De Arte gymnast. i; also Baccius de Thermis, 10.)
SECT. XVIII.—ON THE KINDS OF FRICTION.
Hard friction contracts, and soft relaxes; so that those persons that are relaxed should be rubbed hard, and those that are immoderately constricted, softly; and when, neither in the one state nor the other, it is clear that neither the one mode of friction nor the other should be had recourse to, but as much as possible either extreme ought to be avoided. For much and hard friction diminishes the bulk of the body, whilst, on the other hand, little and soft distends it. If the three different kinds of frictions as to quantity be joined to the same number as to quality, they will produce nine combinations, as is stated below. For one of the kinds, as to quantity, for example much, being complicated with the three differences as to quality, I mean the hard, the soft, and the moderate as to hardness, will produce three combinations; and, again, the little being joined to the other three will produce three more; and the moderate as to quality being complicated with the same three, will produce three more, as is shown below: