|Year : 2016 | Volume
| Issue : 2 | Page : 81-88
Impact of fat mass distribution body shapes on muscles strength and the joints pain
Zerf Mohammed, Bengoua Ali, Mokkedes Moulay Idris, Hakim Hamzaoui, Lakhdar Messaliti
Sports Training Department Laboratory OPAPS, Physical and Sports Education Institute Mostaganem, University Abdelhamid Ibn Badis Mostaganem, Mostaganem, Algeria
|Date of Submission||06-Aug-2016|
|Date of Acceptance||02-Nov-2016|
|Date of Web Publication||19-Dec-2016|
Dr. Zerf Mohammed
University Abdel Hamid Ibn Badis Mostaganem, Mostaganem, 2700
Source of Support: None, Conflict of Interest: None
Our study focuses on fat mass distribution body shapes type as measured to determine their effect on skeletal muscle strengthening lumbar extensors (upper and lower limbs) where our background confirms that every girl has a natural body type of rectangle, apple, pear, or hourglass. It is good for her to know which type of body shape she is, so she can learn what exercises to do, whereas similar studies suggest that it is much better to challenge weight problems with exercise and dietary measures before resorting to figure shaping. For this purpose, our study was carried out with a total of thirty students, females listed in the Institute of Physical Education and Sport, University of Mostaganem, aged between 20 and 23 years; their homogeneity was based on age, sex, and academic specialty, classified based on the body mass index (BMI) into two groups (normal and overweight) and based on their body shape's type into three groups (9 pear shape, 10 rectangle shape, and 11 hourglass shape) as a protocol experimental to examine the impact of fat mass distribution body shapes type on lumbar extensor strength. Based on our data analysis, we confirm that the pear and the rectangle shape affect the strength lumbar extensors due to body weight distribution which increases the risks relating to the skeletal muscles. Weight gain is a factor contributing to the weakness of skeletal muscles. However, the body shape explains the anomalies of the distribution of fat mass and BMI risk observed in our sample in the lower and upper part of the body recorded by the values of Killy test and endurance of trunk, the case of the pear and the rectangle shape back pain, which are consisting in excess of the body fat distributed in comparison with less percentage of muscle mass. Whereas this difference can affect the pelvic position.
Keywords: Body shapes, joints pain, muscles strength, students in physical education and sports
|How to cite this article:|
Mohammed Z, Ali B, Idris MM, Hamzaoui H, Messaliti L. Impact of fat mass distribution body shapes on muscles strength and the joints pain. BLDE Univ J Health Sci 2016;1:81-8
|How to cite this URL:|
Mohammed Z, Ali B, Idris MM, Hamzaoui H, Messaliti L. Impact of fat mass distribution body shapes on muscles strength and the joints pain. BLDE Univ J Health Sci [serial online] 2016 [cited 2019 Jul 17];1:81-8. Available from: http://www.bldeujournalhs.in/text.asp?2016/1/2/81/196084
Individual evaluation standard and comprehensive evaluation system are specially established to further build an accurate evaluation system so as to perfect the body shape model. From the proof, where Lluch S, Lluch E. confirmed that every girl has a natural body type - Rectangle, Apple, Pear, or Hourglass. Our interest in this modest study examines the impact of the adipose accumulation which favors women in the lower body, including hips. The excess of the body fat in women reduces muscle bone and other lean body mass tissues. Therefore, Willett confirms the use of percent body fat as the criteria for assessing body mass index (BMI) may be inappropriate whereas Ditmier confirms that the amount of body fat (or adiposity) includes concern for both the distribution of fat throughout the body and the size of the adipose tissue deposits, which result in the joint stiffness and pain along with a decline in mobility and stability due to the body composition excessive as restriction of motion simply to move and stretch in certain positions according to Bradley and Brzycki.
From the proof that body shape is a critical task of multicellular morphogenesis, "Despite its importance, there is not a systematic understanding about how body shape is developed and maintained."
The present study aimed to explore, on the one hand, optimal shape predictor of physical performance where limited studies investigating the association between body shape and physical performance, and on the other hand, based on body shape index (a body shape index [ABSI]) to predict the lumbar extensor risks. However, the similar studies agree that body shape index (ABSI) has been used for years to determine body composition, including healthy, as the weight, which is one of the most commonly used body shape index, that can reflect the degree of human body symmetry and shape characteristics and too much weight to the human body joint problems.
Based on the confirmation that the skeletal problems in women return to the body shape, the muscle fatigue and joint pains are related to the index body composition.
Our intervention in this study is based on the fat mass distribution body shape (body form) as a shape of the subject's silhouette, appropriate to the way in which bodies may be kept healthy and free from disease. Where the body image physical appearance is the properties (size, shape, and Weight). From that, our hypothesis is based on body fat distribution within the body parts as the aura of fat shock,,, where our aims are to determine the variables influencing muscle strength and joint pain based on the appearance (body form) in sports women.
| Methods|| |
Design of the study
This study was a descriptive design study inspired by the study "The Relationship between Cross Sectional Area and Strength of Back Muscles in Patients with Chronic Low Back Pain," [Figure 1] which recorded the assessment of 7 men and 21 women using the body shapes type as morphological parameters tests and strengthening lumbar extensors (upper and lower) as physiological stress parameters tests; in our case, we used thirty women as sample and skeletal muscle tone field test where Müller (1840) described that skeletal muscle tone is prolonged and tireless contraction of muscles ensures maintenance of a certain posture of the body [Figure 2]. However, Selkowitz et al. confirm that 70%-95% of adults will suffer from low back pain at some time during their lifetime. For this purpose, all participants were tested by field test in the same conditions by a specialized team.
The study was approved by the Laboratory OPAPS Institute of Physical Education and Sports Department, Sport Training, University of Mostaganem. Thirty female students from physical education and sports with mean age group of 21.83 ± 1.11 years, mean height of 156.23 ± 7.22 cm, mean weight of 58.10 ± 4.45 kg, mean BMI of 23.91 ± 2.58 kg/m2 , ABSI index of 0.03 ± 0.003 [Table 1] were randomly selected according to the following criteria.
All participants are female student's registered in the Institute of Physical Education and Sports University Mostaganem for the year 2014-2015 in the same growth characteristics: age, physical performance, and quality of life [Figure 3].
All participants who are volunteers were evaluated based on field tests within the same conditions and procedure, which they were based on save and baseline measurements where our background confirms that the reduction of lumbar flexion-extension range of motion starts at around 50 years of age.
A body shape index (ABSI) calculator
Body shape index (BSI) is a metric for assessing the health implications of a given human body height, mass, and waist circumference (WC).Whereas similar studies confirm that the BSI a better indicator of the health risks of excess weight than the standard BMI according to the formula for calculating is:
Where the body shape index (ABSI) is based on WC adjusted for height and weight,, as new method for determining the health effects of body fat.
Physiological stress parameters
Test of Biering-Sorensen: Isometric for evaluating endurance of trunk extensor
In the prone position, the legs are fixed subject to the anterior superior iliac spines by straps at the ankles and hips, upper body with no support. The arms are crossed on his chest and the hands rest on his shoulders. The test measures the hold time of the sternum of the female above a virtual horizontal line extending.,
Killy test for evaluating Isometric knee extensor endurance
The subject pressed his back against the wall. Hips, knees, and ankles are flexed to 90°. The arms are crossed on his chest, hands resting on the shoulders. The test measures the length of maintained sitting without a chair leaning control wall.,
Body type calculator
This body type calculator tells you which are your body shape and waist to hip ratio using the bust, waist, and hip measures. You can discover more on this subject below the form.
The bust measurement is the circumference of the bust at the fullest part of the breasts while keeping the tape measure snug but not tight.
The waist measurement is the circumference of the narrowest point of the torso, which is often just above the belly button.
The hip measurement is the circumference of the largest part of the hips, with the most prominent curve.
Once you know your dimensions, you can quickly use the body type calculator and find out whether you have an apple, a pear, a banana, or an hourglass type. This can help you know how your body shape or show you which is the health risk level associated with your dimensions. We agreed these sources based on indications that the shape calculator online at metaboliceffect.com/me-shape-calculator will help you.
Statistical analysis was conducted using the SPSS software version 20.0 (IBM Corporation, Armonk, NY, USA). Independent t-test, ANOVA least Significant Difference (LSD), and Pearson correlations were used for comparing the variables chosen in this study. P < 0.05 was considered statistically significant.
| Results|| |
Baseline characteristics of the participants are presented in [Table 1]. According Levene's test for equality of variances, our sample is homogeneous in all variables, except in BMI risk. Where those results explain that overweight increase the stress joints pain and conducted to osteoarthritis in the near future.
- Based on the calculi of ANOVA body shape (rectangle, hourglass, pear), the age is not significant at level, P 0≤ 0.05, which confirms that the differences observed in this study did not report the age growth characteristics whereas the other variables chosen to study are significant at level, P ≤ 0.05
- Based on BMI (normal weight and overweight), our results confirm that the age is not significant in the opposite of other variables
- Based on ANOVA and LSD present in [Table 2], we confirm that the body shape type is able to determine the effect of index body composition at level, P ≤ 0.05, in the majority of comparisons.
These differences return to the body fat distribution is confirmed by the calculi of independents t-test, which is statistically significant for the benefit of normal body gain in all the comparisons.
- Based on its differences, we agreed with Haviland et al. that woman bodies (pear-rectangle) produce relatively more androgenic than hourglass-shaped. Whereas Kasper et al. mention that this could occur through peripheral fat's role in converting androgens to estrogens or through leptin production in adipose tissue
- Through [Table 3], we agree that all the correlations calculated are strong significant at the P =0.01 level (two-tailed). Based on the correlation, BMI and Killy test and endurance of trunk are strongly negative whereas ABSI is strongly positive. We confirm the risk relative to BMI based on the correlation BMI risk which is strong negative.
From the proof, as our case study, we agree that hourglass is the best physical profile with less risk relative to the BMI, followed by rectangle. Whereas the pear is fewer physical profile that risks more relative due to level of body fat distribution as the class BMI.
In conclusion, based on class BMI, our results confirm that weight gain is a factor contributing to the weakness of the skeletal muscles. However, the body shape explains the anomalies of the distribution of fat mass and BMI risk observed in our sample in the lower and upper part of the body recorded by the values Killy test and endurance of trunk. Whereas pear pain consists in excess of the body fat distributed due to percentage of muscle mass. This plays an important role in supporting the lumbar spine and pelvis.
| Discussion|| |
The most important finding of our study concerns body types shape appearance (body form), which is able to determine the impact of overweight on lumbar extensor strength due to level of the distribution and the nature of the mass body which is better correlated to changes in body weight where this relationship is consistent with the level relative risks of BMI and ABSI. However, our results line with confirmation that:
- The ideal female body - curvy or hourglass-shaped
- Achieving an hourglass or V shape is not possible when belly fat is elevated
- The ideal shape changed from the hourglass curve to a more
- Hourglass-shaped women have less cylindrical and androgen than the other shapes
- The impacts strengthening lumbar extensors and appearance body forms are required to strengthen bones where the overweight can be a stress on bones.
From that our findings, we come to confirm the results of the similar studies that BMI reflecting mostly total body fat differs in its relationship to metabolic variables whereas the ABSI depicts fat distribution and relative risk healthy according to our results concerned BMI relative risk.
Based on the proof, we agreed the confirmation that types of body shape determine the risk in skeletal muscle tone based on strengthening lumbar extensors and appearance body forms., However, these risks are due to changes results in increased BMI values which negatively affects the body' joints in middle age and can greatly influence the activity and endurance. Based on these results, we confirm that the ABSI is the important measure to determine the health risk. For the BMI relative risk, we agreed that individual with a higher BMI risk a higher level of adiposity and lower muscle lipoprotein lipase activity. Results which consist with pear type shape, followed by rectangular the case of the test practiced in the current study. From the above, we agreed in terms of female body that the individual with a pear body type is broader in the lower half of the body. While rectangle shape bust and hips are basically the same circumference based on the description of Keiser and Garner., Cook et al. confirm that the rectangle needs waist. In terms of storage grease, we agreed that the circumference must be adjusted to the BMI class to obtain an estimate fat distribution. However, the ABSI and BMI calculate in the current study, as a relative health risk, confirmed that lower body adiposity are challenges training process for any female due to the estrogen stimulates lipoprotein lipase activity, causing fat to accumulate in the hips, buttocks, abdominal and breasts.
| Conclusion|| |
Our study evaluated the impact of body type shapes body forms on risk strengthening lumbar extensors among female students in physical education and sports based on two surrogate measures: morphological parameters (BMI and ABSI) and physiological stress parameters (isometric endurance of trunk extensor and isometric knee extensor endurance) to determine the effective type of shape developed on skeletal muscle strength due to appearance body forms.
On the plan morphologique
We confirm that the body type is categorized in human body in 12 super-specific types based on the quote of Faust et al. and Flaherty that the most are listed in five basic body shapes, as the hourglass, the inverted triangle, the rectangle, the apple, and the pear. However, our sample is categorized as hourglass, pear, and rectangle. Our results confirm the impact of the body shapes as a risk factor for chronic diseases, which return to the bad distribution of body fat where our background confirms that the pear shape come in tops of the list, followed by apple shape and rectangular shape. Based on that, we confirm that people who carry excess weight below the waist (on hips, thighs, and buttocks) have a pear shape, the rectangle body shape has shoulders and hips that are about the same width and a waistline that does not vary more than a few inches, while the rectangles need waist definition. From the proofs, we agreed the recommendation that our girls' students must develop their type body shape based on the rule of less curvaceous shape with a smaller bust and hips. Cabot and Cooper confirm that the body shaping diet is a revolutionary approach to dieting and weight loss that addresses the needs of your particular body type.
On the plan physiological stress
Our findings support our hypothesis that the overweight associated to the changes in body composition affects skeletal muscle performance. However, our results confirm that the hourglass is most adapted to effort in the opposite of the other body shape type where the level of BMI required maximum endurance of trunk torque.,
On the plan risk relative to body mass index
Our findings support our hypothesis where the overweight associated with the changes in body composition affects body joints performance. However, our results line with the confirmation of that being overweight can also have an impact on your joints.,
In general, our findings support that body weight does not convey how much body fat you have or where it is stored the strongest. While the body weight alone cannot be used to estimate health risk, Kim and Kim confirm that body type is the relationship of human body shape to body size, where the form of muscle and bone is more prominent with the less body fat.
We would like to thank all the students who volunteered for the study.
Financial support and sponsorship
Conflicts of interest
There are no conflicts of interest.
| References|| |
Zhou Q. Advances in Applied Economics, Business and Development. UK: Springer Shop; 2011. p. 270.
Lluch S, Lluch E. The Ultimate Girls′ Guide Journal to Feel Confident, Pretty and Happy. China: WS Publishing Group Store; 2009. p. 8.
Orringer JS, Alam M, Dover JS. Body Shaping, Skin Fat and Cellulite: Procedures in Cosmetic Dermatology Series. US: Elsevier Health Sciences; 2014. p. 39.
Karatoprak O. Weight Loss Tailored for Women. US: eBookIt.com Store; 2014. p. 23.
Willett W. Nutritional Epidemiology. UK: Oxford University Press; 2013. p. 235.
Ditmier LF. New Developments in Obesity Research. United States or United Kingdom: Nova Science Publishers; 2006. p. 1.
Bradley M, Brzycki M. The Female Athlete: Train for Success. US: Wish Publishing; 2004. p. 93.
Guan X. Body Shape Regulation by Tweedle Family Proteins in Drosophila melanogaster
. US: ProQuest; 2006. p. 1.
Stewart AD, Sutton L. Body Composition in Sport, Exercise and Health. US: Routledge; 2012. p. 142.
Sowmya S, Thomas T, Bharathi AV, Sucharita S. A body shape index and heart rate variability in healthy Indians with low body mass index. J Nutr Metab 2014;2014:865313.
Thygerson AL, Thygerson SM. Fit to Be Well. US: Jones and Bartelt Learning; 2016. p. 200.
Liu HC, Sung WP, Yao W. Computer, Intelligent Computing and Education Technology. UK: CRC Press; 2014. p. 977.
Bainbridge D. Curvology: The Origins and Power of Female Body Shape. US: Overlook Press; 2015. p. 1.
Microfilms, University. Dissertation Abstracts International. University Microfilms International, AbeBooks; 2008. p. 1.
Lin DY, Chen HC. Ergonomics for All: Celebrating PPCOE′s 20 Years of Excellence. Taiwan: CRC Press; 2010. p. 48.
Lawson T, Garrod J. Dictionary of Sociology. UK: Routledge; 2012. p. 21.
Goodheart K, Clopton JR, Robert-McComb JJ. Eating Disorders in Women and Children: Prevention, Stress Management, and Treatment. UK: CRC Press; 2011.
Griegel-Morris P, Larson K, Mueller-Klaus K, Oatis CA. Incidence of common postural abnormalities in the cervical, shoulder, and thoracic regions and their association with pain in two age groups of healthy subjects. Phys Ther 1992;72:425-31.
Weber PC, Cass SP. Clinical assessment of postural stability. Am J Otol 1993;14:566-9.
Zagyapan R, Iyem C, Kurkcuoglu A, Pelin C, Tekindal MA. The relationship between balance, muscles, and anthropomorphic features in young adults. Anat Res Int 2012;2012:146063.
Michelle K. The relationship between body image satisfaction, investment in physical appearance, life satisfaction, and physical attractiveness self-efficacy in adult women. Vol. 171. Los Angeles: Alliant International University, ProQuest; 2007. p. 23.
Lee HJ, Lim WH, Park JW, Kwon BS, Ryu KH, Lee JH, et al.
The relationship between cross sectional area and strength of back muscles in patients with chronic low back pain. Ann Rehabil Med 2012;36:173-81.
Kandel EI. Functional and Stereotactic Neurosurgery. UK: Springer Shop; 2012. p. 57.
Selkowitz DM, Kulig K, Poppert EM, Flanagan SP, Matthews ND, Beneck GJ, et al.
The immediate and long-term effects of exercise and patient education on physical, functional, and quality-of-life outcome measures after single-level lumbar microdiscectomy: A randomized controlled trial protocol. BMC Musculoskelet Disord 2006;7:70.
Ajit Singh DK, Bailey M, Lee R. Strength and fatigue of lumbar extensor muscles in older adults. Muscle Nerve 2011;44:74-9.
Kienbacher T, Paul B, Habenicht R, Starek C, Wolf M, Kollmitzer J, et al.
Age and gender related neuromuscular changes in trunk flexion-extension. J Neuroeng Rehabil 2015;12:3.
Krakauer NY, Krakauer JC. A new body shape index predicts mortality hazard independently of body mass index. PLoS One 2012;7:e39504.
Ahima RS. Obesity Epidemiology, Pathogenesis, and Treatment. UK: CRC Press; 2014. p. xxvii.
David Zinczenko. Zero Belly Diet by David Zinczenko|Key Takeaways and Analysis. US: Worldwide; 2015. p. 5.
Outrequin J, Dupuis E, Schmitt E, Sirima LS, Rauline G, Landau R, et al
. Improving muscle performance by Deep Pressure Continues Using MyoDavKor® in high-level hockey players. 2011, Draft - Confidentiel, AP HP, Clinical Research Unit Lariboisière - Saint Louis, Fernand Widal Hôpital, Paris; 2011. p. 1-7.
Dejanovic A, Cambridge ED, McGill S. Isometric torso muscle endurance profiles in adolescents aged 15-18: Normative values for age and gender differences. Ann Hum Biol 2014;41:153-8.
Quentin B. intra-examiner reliability of the ball Klein on board test eyes closed: Evaluation of the endurance of the abdominal force in the prevention of sports injuries. FR: Institute Training in Masso Kinesiotherapy; 2013-2014. p. 17.
De Ruiter CJ, Mallee MI, Leloup LE, De Haan A. A submaximal test for the assessment of knee extensor endurance capacity. Med Sci Sports Exerc 2014;46:398-406.
Bernard JC, Bard R, Pujol A, Combey A, Boussard D, Begue C, et al.
Muscle assessment in healthy teenagers, Comparison with teenagers with low back pain. Ann Readapt Med Phys 2008;51:263-83.
Chen CM. Female Body Characteristics Related to Bra Fit. US: ProQuest; 2007. p. 25.
Teta J, Teta K. Lose Weight Here. UK: Rodale; 2015. p. xiii.
LeMone PT, Burke KM. Medical-surgical Nursing: Critical Thinking in Client Care. US: Pearson/Prentice Hall; 2008. p. 632.
Haviland WA, Prins HE, Walrath D. Anthropology: The Human Challenge. UK: CengageBrain.com; 2016. p. 299.
Kasper D, Fauci A, Hauser S. Harrison′s Principles of Internal Medicine. 19 th
ed., Vol. 1, 2. US: McGraw-Hill Professional; 2015. p. 2391.
Watanabe K, Ohashi M, Hirano T, Katsumi K, Yamamoto N, Sato N, et al
. Does trunk muscle strength affect spinal deformity in adult female patients? Evaluation of cross sectional area of psoas major and lumbar extensor muscles. Scoliosis 2015;10:13.
Cohen D. Body Language: Overcome Common Problems. US: Sheldon Press; 1992. p. 120.
Teta J, Teta K. Lose Weight Here: The Metabolic Secret to Target Stubborn Fat and Fix Your Problem Areas Hardcover. Ch. 7. US: Rodale Press, Inc.; 2015. p. 10.
Plowman SA, Smith DL. Exercise Physiology for Health Fitness and Performance. US: Wolters Kluwer Health; 2013. p. 191.
Haviland WA, Walrath D, Prins HE. Evolution and Prehistory: The Human Challenge. US: CengageBrain.com; 2013. p. 303.
Waters P. The Complete Guide to Weight Loss. UK: A and C Black; 2015. p. 129.
Malara M, Kęska A, Tkaczyk J, Lutosławska G. Body shape index versus body mass index as correlates of health risk in young healthy sedentary men. J Transl Med 2015;13:1-5.
Cheung YB. A body shape index in middle-age and older Indonesian population: Scaling exponents and association with incident hypertension. PLoS One 2014;9:e85421.
Edelman CL, Mandle CL, Kudzma EC. Health Promotion Throughout the Life Spain. Span: Elsevier Health Sciences; 2013. p. 563.
Raeven GM. Insulin resistance: The link between adiposity and cardiovascular disease. Med Clin North Am 2011;95:875-92.
Reznick, Packer, Sen. Oxidative Stress in Skeletal Muscle. US: Springer Shop; 2012. p. 146.
Solomon A, Wilson G, Tyler L. 100% Job Search Success. US: CengageBrain.com; 2011. p. 117.
Keiser SJ, Garner MB. Beyond Design: The Synergy of Apparel Product Development. US: A and C Black; 2012. p. 362.
Cook J, Wolf MD. Rectangles need waist definition. US: Contemporary Books; 1984. p. 167.
Bray GA. Handbook of Obesity. Vol. 1. US: CRC Press; 2014. p. 95.
Schoenfeld B. Sculpting Her Body Perfect. US: Human Kinetics; 2008. p. xiv.
Faust ME, Carrier S. Designing Apparel for Consumers: The Impact of Body Shape and Size. US: Woodhead Publishing; 2014. p. 176.
Flaherty S. The Book of Styling: An Insider′s Guide to Creating Your Own Look. CA: Zest Book LLC; 2012. p. 71.
Yeager S, Doherty B. The Prevention Get Thin Get Young Plan. US: Rodale; 2000. p. 161.
Boyle MA, Roth SL. Personal Nutrition. US: CengageBrain.com; 2012. p. 20.
Davis B, Melina V. Becoming Vegan: The Complete Reference to Plant-Base Nutrition. Ch. 12. US: Book Publishing Company; 2014.
Bennett T. Looking Good from the Inside Out-Fashion. US: Baker Publishing Group; 2003. p. 15.
Waller DL. Sustainable Weight Loss: The Definitive Guide to Maintaining a Healthy Body. US: iUniverse; 2011. p. 118.
Cabot S, Cooper D. The Body Shaping Diet. US: SCB International Incorporated; 2013. p. 1.
Tomlinson DJ, Erskine RM, Winwood K, Morse CI, Onambélé GL. The impact of obesity on skeletal muscle architecture in untrained young vs. old women. J Anat 2014;225:675-84.
Kim DH, Yoon WY. Effect of core program exercise for lumbar extensor strength and pain of the patient with chronic low back pain. Indian J Sci Technol 2015;8 Suppl 1:353-9.
Weston BS. Reach Your Weight Loss Destiny and Keep Your SKINNY Victory! Stop the Diet. US: Auhtorhouse; 2012. p. 50.
Schwanbeck K. The Ultimate Nordic Pole Walking Book. UK: Meyer and Meyer Verlag; 2012. p. 22.
Cormier N. The Everything Guide to Nutrition. US: Karen Cooper; 2010. p. 3.
Medeiros DM. Advanced Human Nutrition. US: Jones and Bartlett Learning; 2013. p. 220.
Kim M, Kim I. Patternmaking for Menswear: Classic to Contemporary. US: A and C Black; 2014. p. 2.
[Figure 1], [Figure 2], [Figure 3]
[Table 1], [Table 2], [Table 3]