Body Shape in Skinks: The Relationship between Relative Hind Limb Length and Relative Snout–Vent Length

2003 ◽  
Vol 37 (3) ◽  
pp. 554-559 ◽  
Author(s):  
Allen E. Greer ◽  
Lisa Wadsworth
Keyword(s):  
Hind Limb ◽  
Body Shape ◽  
Limb Length ◽  
The Relationship

scholarly journals Morphological determinants of jumping performance in the Iberian green frog

2019 ◽  
Vol 66 (4) ◽  
pp. 417-424
Author(s):  
Gregorio Moreno-Rueda ◽  
Abelardo Requena-Blanco ◽  
Francisco J Zamora-Camacho ◽  
Mar Comas ◽  
Guillem Pascual
Keyword(s):  
Body Size ◽  
Body Mass ◽  
Fluctuating Asymmetry ◽  
Hind Limb ◽  
Limb Length ◽  
Age Classes ◽  
Jumping Performance ◽  
Hind Limbs ◽  
Selective Forces ◽  
Pelophylax Perezi

Abstract Predation is one of the main selective forces in nature, frequently selecting potential prey for developing escape strategies. Escape ability is typically influenced by several morphological parameters, such as morphology of the locomotor appendices, muscular capacity, body mass, or fluctuating asymmetry, and may differ between sexes and age classes. In this study, we tested the relationship among these variables and jumping performance in 712 Iberian green frogs Pelophylax perezi from an urban population. The results suggest that the main determinant of jumping capacity was body size (explaining 48% of variance). Larger frogs jumped farther, but jumping performance reached an asymptote for the largest frogs. Once controlled by structural body size, the heaviest frogs jumped shorter distances, suggesting a trade-off between fat storage and jumping performance. Relative hind limb length also determined a small but significant percentage of variance (2.4%) in jumping performance—that is, the longer the hind limbs, the greater the jumping capacity. Juveniles had relatively shorter and less muscular hind limbs than adults (for a given body size), and their jumping performance was poorer. In our study population, the hind limbs of the frogs were very symmetrical, and we found no effect of fluctuating asymmetry on jumping performance. Therefore, our study provides evidence that jumping performance in frogs is not only affected by body size, but also by body mass and hind limb length, and differ between age classes.

scholarly journals Is There Any Relationship Between Body Image Perception, Eating Disorders, and Muscle Dysmorphic Disorders in Male Bodybuilders?

2018 ◽  
Vol 12 (5) ◽  
pp. 1746-1758 ◽  
Author(s):  
Aslı Devrim ◽  
Pelin Bilgic ◽  
Nobuko Hongu
Keyword(s):  
Eating Disorders ◽  
Body Image ◽  
Body Dissatisfaction ◽  
Body Shape ◽  
Muscle Dysmorphia ◽  
Eating Attitude ◽  
Male Body ◽  
Eating Attitude Test ◽  
Attitude Test ◽  
The Relationship

Bodybuilding has increasingly become popular between males since male body shape has become a subject of interest in the last decades. Bodybuilders have desired to gain more muscle and paid attention to their body shape. Based on this purpose, they have string rules that include restrictive eating and excessive exercise program. Recent research has demonstrated that desiring more muscular body shape exhibits eating behavior problems and body dissatisfaction issues in bodybuilders. Limited research exists on the relationship between body dissatisfaction and eating disorders in male bodybuilders. The aim of this study was to determine the relationship between body image disturbance and eating disorders in 120 male bodybuilders. The Eating Attitude Test (EAT-40) was used to determine eating disorders, the Muscle Dysmorphia Disorder Inventory was used to determine bigorexia symptoms, and Bodybuilder Image Grid-Original (BIG O) and Scaled (BIG S) forms were used to detect the factors associated with body dissatisfaction. There was a positive relationship between Eating Attitude Test and Muscle Dysmorphia Disorder Inventory total scores. Eating Attitude Test was positively correlated with both fat and muscle dissatisfaction. Our results indicated that eating disorder psychopathology is positively related to body dissatisfaction and body dysmorphic disorders in male bodybuilders.

scholarly journals Evolution of the Unique Anuran Pelvic and Hind limb Skeleton in Relation to Microhabitat, Locomotor Mode, and Jump Performance

2020 ◽  
Vol 60 (5) ◽  
pp. 1330-1345 ◽  
Author(s):  
Shannon M Buttimer ◽  
Natasha Stepanova ◽  
Molly C Womack
Keyword(s):  
Hind Limb ◽  
Evolutionary Rate ◽  
Morphological Changes ◽  
Body Plan ◽  
Individual Species ◽  
Museum Collections ◽  
Jump Performance ◽  
Anuran Species ◽  
The Relationship ◽  
3D Landmarks

Abstract Anurans (frogs and toads) have a unique pelvic and hind limb skeleton among tetrapods. Although their distinct body plan is primarily associated with saltation, anuran species vary in their primary locomotor mode (e.g., walkers, hoppers, jumpers, and swimmers) and are found in a wide array of microhabitats (e.g., burrowing, terrestrial, arboreal, and aquatic) with varying functional demands. Given their largely conserved body plan, morphological adaptation to these diverse niches likely results from more fine-scale morphological change. Our study determines how shape differences in Anura’s unique pelvic and hind limb skeletal structures vary with microhabitat, locomotor mode, and jumping ability. Using microCT scans of preserved specimens from museum collections, we added 3D landmarks to the pelvic and hind limb skeleton of 230 anuran species. In addition, we compiled microhabitat and locomotor data from the literature for these species that span 52 of the 55 families of frogs and ∼210 million years of anuran evolution. Using this robust dataset, we examine the relationship between pelvic and hind limb morphology and phylogenetic history, allometry, microhabitat, and locomotor mode. We find pelvic and hind limb changes associated with shifts in microhabitat (“ecomorphs”) and locomotor mode (“locomorphs”) and directly relate those morphological changes to the jumping ability of individual species. We also reveal how individual bones vary in evolutionary rate and their association with phylogeny, body size, microhabitat, and locomotor mode. Our findings uncover previously undocumented morphological variation related to anuran ecological and locomotor diversification and link that variation to differences in jumping ability among species.

Hind-Limb Length Plasticity in Anolis carolinensis

2005 ◽  
Vol 39 (4) ◽  
pp. 674-678 ◽  
Author(s):  
Jason J. Kolbe ◽  
Jonathan B. Losos
Keyword(s):  
Hind Limb ◽  
Anolis Carolinensis ◽  
Limb Length

Body composition of Romney-Southdown cross and Merino sheep foetuses at a constant age and a constant body weight

1964 ◽  
Vol 6 (3) ◽  
pp. 309-319 ◽  
Author(s):  
S. K. Stephenson
Keyword(s):  
Growth Rate ◽  
Body Composition ◽  
Body Weight ◽  
Muscle Tissue ◽  
Hind Limb ◽  
Body Shape ◽  
Carcass Composition ◽  
The Body ◽  
Merino Sheep ◽  
Australian Merino

1. Body shape and carcass composition have been measured in a dated series of Romney-Southdown cross and Australian Merino sheep foetuses.2. Large differences in shape exist between the two breed groups and these result from growth rate differences in certain components of the bone and muscle tissue.3. Carcass composition at any particular foetal weight, however, is more uniform. In relation to body weight, the Merino has a higher proportion of bone in the body but the proportion of muscle is the same in both breed groups. Nevertheless, the distribution of muscle tissue is changed as there s i a higher proportion of muscle in the hind limb of the Romney-Southdown cross.

The relationship of body shape perception, eating disorders, nutritional knowledge and food intake with nutritional status adolescent girls in Ayodya Pala

2020 ◽  
Vol 4 (2) ◽  
pp. 74-84
Author(s):  
Digahayu Ismayanti
Keyword(s):  
Eating Disorders ◽  
Food Intake ◽  
Nutritional Status ◽  
Adolescent Girls ◽  
Body Shape ◽  
Shape Perception ◽  
Nutritional Knowledge ◽  
Cross Sectional ◽  
Relationship Of ◽  
The Relationship

Youth groups who work as dancers are prone to malnutrition. The leaner body shape is considered to make it easier to move so that teens tend to limit food intake in order to achieve ideal body shape. The purpose of this study was to determine the relationship of perceptions of body shape, eating disorders, nutritional knowledge, and food intake with nutritional status in adolescent girls in Ayodya Pala. This research was conducted in May 2019 at the Ayodya Pala. The research was a cross-sectional study. This study used a total sampling technique, which means that the total population was the subject of research. The result showed that 58% of subjects had poor nutritional status, 50,8% of subjects had negative perceptions of body shape, 57,1% of subjects had eating disorders, 55,6% of subjects had less knowledge of nutrition. More than 50% of subjects were lack of energy and macronutrient intake. In conclusion, there was a significant relationship (p=0,000) between body shape perception, eating disorders, nutritional knowledge, and food intake with nutritional status. Keywords: Body Shape Perception, Food Intake, Eating Disorders, Nutritional Knowledge, Nutritional Status

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