| 1. |
- Berg, Christina, 1963, et al.
(författare)
-
Att måla maten i svart och vitt
- 2015
-
Ingår i: Mat är mer än mat. Samhällsvetenskapliga perspektiv på mat och måltider. - Göteborg : University of Gothenburg. ; , s. 79-90
-
Bokkapitel (övrigt vetenskapligt/konstnärligt)
|
|
| 2. |
|
|
| 3. |
- Pettersson, Stefan, 1972, et al.
(författare)
-
Dietary Intake at Competition in Elite Olympic Combat Sports.
- 2014
-
Ingår i: International journal of sport nutrition and exercise metabolism. - : Human Kinetics. - 1543-2742 .- 1526-484X. ; 24:1, s. 98-109
-
Tidskriftsartikel (refereegranskat)abstract
- The purpose of the current study was to investigate elite female (n=21) and male (n=47) combat sports athletes' (n=68; mean age (± SD) 21.3 ± 3.8 years; mean height 177 ± 10.2 cm) dietary intake between weigh-in and the first bout in Olympic combat sports. The data were collected at 6 separate tournaments and measurements included estimated food records, time for recovery, and body weight (BW) at weigh-in and first match. In total, 33 athletes participated in wrestling and taekwondo, sports with extended recovery times, and 35 athletes in judo and boxing, sports with limited recovery time. The results displayed that despite a mean consumption of food and drinks corresponding to 4.2 kg, the athletes only regained an average of 1.9 kg BW during recovery. Water accounted for 86% of the total intake. For each litre of water consumed, athletes gained 0.57 kg BW, when excluding heavy weight athletes (n=5). Carbohydrate consumption was 5.5 g/kg BW, compared to the recommended 8-10 g/kg BW. In total, one-quarter of the consumed water originated from carbohydrate-rich drinks. Given the average recovery time of 18 (wrestling, taekwondo) versus 8 hours (judo, boxing), the former group consumed twice the amount of water, carbohydrates, protein, and fat as the latter group. In conclusion, a large proportion of the participants did not meet the recovery nutrition guidelines for carbohydrates. Also, the discrepancy between nutrient intake and weight gain points to the physiological barriers to retaining fluids during a limited recovery time after engaging in weight making practices.
|
|
| 4. |
- Pettersson, Stefan, 1972, et al.
(författare)
-
Hydration Status in Elite Wrestlers, Judokas, Boxers and Taekwondo Athletes on Competition Day.
- 2014
-
Ingår i: International journal of sport nutrition and exercise metabolism. - : Human Kinetics. - 1543-2742 .- 1526-484X. ; 24:3
-
Tidskriftsartikel (refereegranskat)abstract
- Weight category athletes are known for practicing rapid weight loss prior to competition weigh-in. After weigh-in, athletes strive to restore euhydration and body mass through food and fluid intake. The aim of the present study was to assess prevalence of hypohydration at competition time among elite athletes' in four different combat sports, and how water intake and timing of official weigh-in were related to hydration status. Participants were 31 taekwondo practitioners and wrestlers who performed evening weigh-in (EWI) the night before competition day and had thus time for rehydration, and 32 boxers and judokas conducting competition day morning weigh-in (MWI). In total, 32% were female. Urine specific gravity (USG) was measured by refractometry on the competition day's first morning urine sample. Hypohydration was defined as USG ≥1.020 and serious hypohydration as USG>1.030. Water intake was measured by means of dietary records. The prevalence of hypohydration was 89% in the morning of competition day. Serious hypohydration was also prevalent. This was found in over 50% of MWI athletes and was also present in 42% of the EWI group. A higher water intake, from both fluids and solid foods, in the evening before competition day was not associated with a more favourable hydration status the following morning. In conclusion, neither weigh-in close to competition nor evening weigh-in with more time for rehydration seems to prevent hypohydration prior to competition.
|
|
| 5. |
|
|
| 6. |
- Pettersson, Stefan, 1972, et al.
(författare)
-
Practices of Weight Regulation Among Elite Athletes in Combat Sports: A Matter of Mental Advantage?
- 2013
-
Ingår i: Journal of athletic training. - : Journal of Athletic Training/NATA. - 1062-6050. ; 48:1, s. 99-108
-
Tidskriftsartikel (refereegranskat)abstract
- Context: The combination of extensive weight loss and inadequate nutritional strategies in order to rapidly lose weight for competition in weight-category sports could negatively affect athletic performance and health. Objective: Our aim was to explore the reasoning of elite combat sports athletes about rapid weight loss and regain prior to competitions. Design and Setting: With grounded theory as a theoretical framework, we employed a cross examinational approach including interviews, observations and Internet sources. Patients or Other Participants: Participants in the interviews included fourteen Swedish national team athletes (nine male, five female) from 18 to 36 years of age from three Olympic combat sports (wrestling, judo and taekwondo). Sports observations were performed at competitions while statements collected on the Internet included combat sport athletes in general. Data collection and analysis: The one-on-one interviews were of a semi-structured character. Field observations were conducted at competitions at different locations in Europe. By using an iterative approach, we inductively analyzed the interview transcripts and field notes and selectively sampled quotes posted on the Internet. Results: Positive aspects of weight regulation other than gaining physical advantage emerged from the data during the analysis; sport identity, mental diversion and mental advantage. Together and individually, these categories point toward the positive aspects of weight regulation (WR) experienced by the athletes. Practicing WR mediates a self-image of being "a real athlete". WR is also considered mentally important as a part of the pre-competition preparations, acting as a coping strategy by creating a feeling of increased focus and commitment. Moreover, a mental advantage relative to one's opponents can be gained through the practice of WR. Conclusions: The results show that WR has mentally important functions extending beyond the common notion that combat sport athletes merely reduce their weight in order to gain a physical edge over their opponents.
|
|
| 7. |
- Pettersson, Stefan, 1972, et al.
(författare)
-
Practises of Weight Regulation among Elite Athletes in Combat Sports: A matter of Mental Advantage?
- 2010
-
Ingår i: Poster presentation at the 2010 annual International Society for Behavioural Nutrition and Physical Activity (ISBNPA) meeting in Minneapolis, USA.
-
Konferensbidrag (refereegranskat)abstract
- Weight Regulation among Elite Athletes in Combat Sports: A matter of Mental advantage? Background and aim Studies have shown that combat sports athletes often compete in weight categories 5-10% below their normal body weight. The combination of extensive weight loss and inadequate nutritional strategies to rapidly lose weight for competition in weight category sports could negatively affect athletic performance and health. To the best of our knowledge, no research have investigated elite athletes´ opinions of short-term weight regulation in combat sports, especially the perceived benefits of these practises. Therefore, the aim of the present study is to improve the understanding of elite athletes’ reasoning regarding rapid weight loss and regain prior to competition. Method Participants in the study consisted of 14 athletes (9 men, 5 women) of the Swedish national teams in the Olympic sports of wrestling, judo and taekwondo. Trough semi-structured interviews, the athletes´ contributed with information about their weight-regulating practises and experiences of such, as well as more general opinions about the practise of weight regulation within the participants’ own sport. All interviews were transcribed verbatim, ending up in 147 pages of single-spaced text. Using Grounded Theory as the theoretical framework, the analysis was performed by an initial coding of different attributes, followed by grouping conceptually similar attributes into categories. The combined essence of these three categories (Figure 1), generated the theory building core category. In the final stages of the analysis, external data (interviews/statements from combat sports athletes posted on the internet) was included. These actions was taken in order to reduce the likelihood of the first authors’ unconscious influence on the participants during the interviews, and to show that conformity exists between data irrespective of source. Results The results show that the opinion about the positive outcomes by weight regulation are not restricted to just being a possible royal road to victory through physical dominance of ones´ opponent. Weight regulation practises make up for an important part of the combat sport athletes´ identity. The feelings of inclusion to the sport specific group along with mediating a self-image of being “a real athlete” by practising weight regulation signals professionalism, toughness and success to the athletes´ surroundings. Moreover, weight regulation is considered mentally important as a part of the pre-competition preparations; both acting as a coping strategy by reducing pre-competition anxiety, but also creating a feeling of increased motivation and commitment, a feeling that under the right conditions can transform into enhanced self-esteem during the competition. Also, the practice gives the individual athlete a perceived advantage relative the opponent. Thus, weight regulation per se is an important part of combat sports. This can be a contributing factor as to why athletes adopt the practice without further questioning the negative aspects regarding health and performance. Conclusions Weight regulation practises have mentally important functions extending beyond the common notion of combat sport athletes merely reducing their weight in order to gain a physical edge on their opponents. Thus, in nutritional counselling it is important not to have prejudice about the reasons behind intentional weight loss.
|
|
| 8. |
|
|
| 9. |
- Pettersson, Stefan, 1972, et al.
(författare)
-
The Food and Weight Combat: A problematic fight.
- 2011
-
Ingår i: Oral presentation at the CORPUS fourth International symposium, (“Diets & food patterns. Myths, realities and hops”), July 5-6, Tbilisi, Georgia.
-
Konferensbidrag (refereegranskat)
|
|
| 10. |
- Pettersson, Stefan, 1972, et al.
(författare)
-
The food and weight combat. A problematic fight for the elite combat sports athlete.
- 2012
-
Ingår i: Appetite. - : Elsevier BV. - 1095-8304 .- 0195-6663. ; 59:2, s. 234-242
-
Tidskriftsartikel (refereegranskat)abstract
- Weight reduction in athletes is motivated by optimisation of performance, aesthetic reasons or to achieve a pre-designated weight. Previous research has shown that dietary restraint and short term weight regulation frequently takes place among combat sports athletes such as wrestlers and judokas. The aim of this study was to explore negative experiences related to dietary strategies and weight-making practises used by elite combat sports athletes. Using semi-structured interviews, 14 Swedish national team athletes in wrestling, judo and taekwondo were asked about their dietary intake and their engagement in both long- and short-term weight regulation practises. Content analysis of the transcribed interviews, display a constant struggle regarding nutritional standpoints. Sport demands such as achieving an optimal weight and nutritional intake were considered as central in order for excellent performance. Adhering to these demands was found to be problematic however, primarily because of; (1) negative physiological responses and (2) opposing ideals of a non-sport related nature, such as the importance of the athletes to be healthy and social in their everyday lives.
|
|
