Electromyography of the gluteal muscles in Hylobates, Pongo , and pan
Implications for the evolution of hominid bipedality
Bibliographic Data
| ID | 8317898 |
|---|---|
| Authors | Jack T Stern (State University of New York), Jack T Stern Jack T Stern, Randall L Susman (State University of New York) |
| Year | 1981 |
| Volume | 55 |
| Issue | 2 |
| Pages | 153-166 |
| Publication date | 1981-06-01 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | American Journal of Physical Anthropology (JOURNAL) |
| Journal identifiers | ISSN: 0002-9483 • E-ISSN: 1096-8644 |
| Publisher | Wiley (PUBLISHER • GB) |
| DOI | 10.1002/ajpa.1330550203 |
| OpenAlex | W2103996045 |
| Language | EN |
| Citations received | 78 |
| References cited | 18 |
The gluteal musculature of primates has been a focus of great research interest among those who study human evolution. Most current theorists agree that gluteus superficialis (= maximus) need not have changed its action in the step from pongid to hominid, but dispute has arisen over a purported change in action and role of the gluteus medius. To clarify the functions of gluteus medius, gluteus superficialis, and tensor fasciae femoris during ape locomotion, we conducted a telemetered electromyographic study of these muscles in two gibbons, one orangutan, and four chimpanzees as they walked bipedally on the ground and on a horizontal tree trunk, walked quadrupedally on the same substrates, and climbed a vertical tree trunk. The results indicate that the gluteus medius of apes is not, as has been previously suggested, primarily an extensor of the thigh; its action is chiefly that of medial rotation. The role of the gluteus medius during bipedality is the same in apes and humans–to provide side‐to‐side balance of the trunk at the hip. The change in the hominid lateral balance mechanism can be viewed as primarily osteological, allowing preservation of the same muscle function with an extended thigh. As a result, the stride length is increased and there occurs a diminution of the demands placed on other muscles to maintain anteroposterior balance at the hip and knee. Our data also support the view that vertical climbing may be specifically preadaptive to bipedalism. One may picture the earliest hominid as part biped, when on the ground traveling between scattered food trees, and part climber, when moving from the ground to food
Arboreal locomotion · Biology · Bipedalism · Climbing · Electromyography · Gluteal muscles · Medius · Physical medicine and rehabilitation · Thigh · Trunk · Anatomy · Cerebral Palsy and Movement Disorders · Medicine · Primate Behavior and Ecology · Sports injuries and prevention
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Patterns of strain in the macaque tibia during functional activity
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Hip extensor EMG and forelimb/hind limb weight support asymmetry in primate quadrupeds
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Dimensions and moment arms of the hind- and forelimb muscles of common chimpanzees (Pan troglodytes)
Locomotor energetics in primates
Nonhuman Primate Locomotion
The shape of the early hominin proximal femur
Femoral neck structure and function in early hominins
Plantigrady and foot adaptation in African apes
Positional behavior of Pan troglodytes in the Mahale Mountains and Gombe Stream National Parks, Tanzania
Activity and functions of the human gluteal muscles in walking, running, sprinting, and climbing
Ground reaction forces and center of mass mechanics of bipedal capuchin monkeys
Back muscle function during bipedal walking in chimpanzee and gibbon
D‐kinematics of vertical climbing in hominoids
Interpreting the posture and locomotion ofAustralopithecus afarensis
Neural control of quadrupedal and bipedal stance
New femoral remains of Nacholapithecus kerioi
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Climbing and the daily energy cost of locomotion in wild chimpanzees
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Structural design of the femoral neck in primates
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Ground-reaction-force profiles of bipedal walking in bipedally trained Japanese monkeys
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Chimpanzee hind limb muscle electromyographic activity patterns during locomotion
Adaptations for bipedal walking
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Cortical bone distribution in the femoral neck of Paranthropus robustus
Relative leg-to-arm skeletal strength proportions in orangutans by species and sex
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Australopithecus afarensis
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Chimpanzee Bipedalism
Activities of pongid thigh muscles during bipedal behavior
Functional articulation of some hominoid foot bones
Evolution of the human foot
Bioenergetics and the origin of hominid bipedalism
Origin of bipedalism
An electromyographic study of the pectoralis major in Atelines and Hylobates , with special reference to the Evolution of a pars clavicularis
Telemetered electromyography of flexor digitorum profundus and flexor digitorum superficialis in Pan troglodytes and implications for interpretation of the O. H. 7 hand
Anatomical and functional specializations of the human gluteus maximus
Some aspects of pongid and hominid bipedality
A functional analysis of pongid hip and thigh musculature
| Unique citing works | 78 |
|---|---|
| Citations per year | 1,77 |
| Citation span | 1982 - 2026 (45) |
| Citation velocity | current |
| Highly cited | No |
| Citation types | Neutral: 69 |