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Hindlimb interarticular coordinations in Microcebus murinus in maximal leaping
- Source :
- Journal of Experimental Biology, Journal of Experimental Biology, The Company of Biologists, 2010, 213 (8), pp.1320-1327. ⟨10.1242/jeb.041079⟩
- Publication Year :
- 2010
-
Abstract
- SUMMARYThe purpose of this study was to investigate the pattern of coordinations of the hindlimb joints in the world's smallest living primate (Microcebus murinus). The sequencing and timing of joint rotations have been analyzed in five adult males performing maximal leaping from a take-off immobile platform to their own wooden nest. Angular kinematics of hip, knee, angle and metatarso-phalangeal (MT) joints were deduced from high-speed X-ray films in the sagittal plane of the animals. The body mass center (BMC) of the lemurs was assimilated to their iliac crest. The maximal airborne performance of the lemurs was 0.33±0.04 m, which represented 2.55±0.36 times their snout–vent length. Take-off instant occurred 72±7 ms after the start of the push-off, with a BMC velocity of 3.23±0.48 m s−1, oriented 55±14 deg. with the horizontal plane. The kinematic analysis of the joints and musculo-tendon architecture of the M. murinus plantar flexors pointed out mechanical power amplifier mechanisms (i.e. stretch-shortening cycle of hindlimb muscles and proximo-to-distal sequence).
- Subjects :
- musculoskeletal diseases
0106 biological sciences
Male
Microcebus murinus
Physiology
030310 physiology
Movement
Lemur
Hindlimb
Kinematics
Aquatic Science
Cheirogaleidae
010603 evolutionary biology
01 natural sciences
03 medical and health sciences
biology.animal
medicine
Animals
Humans
Molecular Biology
Ecology, Evolution, Behavior and Systematics
ComputingMilieux_MISCELLANEOUS
Physics
0303 health sciences
biology
Behavior, Animal
Biomechanics
Anatomy
biology.organism_classification
Horizontal plane
Sagittal plane
Biomechanical Phenomena
medicine.anatomical_structure
Insect Science
Animal Science and Zoology
[SDE.BE]Environmental Sciences/Biodiversity and Ecology
Subjects
Details
- ISSN :
- 14779145 and 00220949
- Volume :
- 213
- Issue :
- Pt 8
- Database :
- OpenAIRE
- Journal :
- The Journal of experimental biology
- Accession number :
- edsair.doi.dedup.....07d1a97d1ad90a73469ec3a1779c8754