Muscle Strengthening Activities and Retinopathy

2017 ◽  
Vol 6 (2) ◽  
pp. 1
Author(s):  
Emily Frith ◽  
Paul Loprinzi
Keyword(s):  
Muscle Strengthening

Strength training in children and adolescents: science, effects and recommandations

2017 ◽  
Vol 65 (3) ◽  
Keyword(s):  
Strength Training ◽  
Children And Adolescents ◽  
International Health ◽  
Well Being ◽  
Review Article ◽  
Physical Activity Guidelines ◽  
Muscle Strengthening ◽  
Strengthening Exercises ◽  
Methodological Aspects ◽  
Practical Recommendations

During the last years, muscle strengthening exercises have been included as an essential part in youth physical activity guidelines of national and international health organisations. It is well-documented that strength training is effective in improving physical fitness and promoting health and psycho-social well-being. Therefore, the purpose of this review article is to present empirical evidence on the effectiveness of strength training in children and adolescents. Additionally, and with reference to an established youth physical development model, conceptual and methodological aspects of safe and effective strength training in youth will be discussed and specific practical recommendations will be presented.

scholarly journals The Acute Effects of a Swimming Session on the Shoulder Rotators Strength and Balance of Age Group Swimmers

2021 ◽  
Vol 18 (15) ◽  
pp. 8109
Author(s):  
Nuno Batalha ◽  
Jose A. Parraca ◽  
Daniel A. Marinho ◽  
Ana Conceição ◽  
Hugo Louro ◽  
...  
Keyword(s):  
Repeated Measures ◽  
Training Session ◽  
Age Group ◽  
Acute Effects ◽  
Muscle Strengthening ◽  
Repeated Measures Design ◽  
Before And After ◽  
Shoulder Strength ◽  
Isometric Torque ◽  
Gender Specific

The purpose of this study was to analyze the acute effects of a standardized water training session on the shoulder rotators strength and balance in age group swimmers, in order to understand whether a muscle-strengthening workout immediately after the water training is appropriate. A repeated measures design was implemented with two measurements performed before and after a standardized swim session. 127 participants were assembled in male (n = 72; age: 16.28 ± 1.55 years, height: 174.15 ± 7.89 cm, weight: 63.97 ± 6.51 kg) and female (n = 55; age: 15.29 ± 1.28 years, height: 163.03 ± 7.19 cm, weight: 52.72 ± 5.48 kg) cohorts. The isometric torque of the shoulder internal (IR) and external (ER) rotators, as well as the ER/IR ratios, were assessed using a hand-held dynamometer. Paired sample t-tests and effect sizes (Cohen’s d) were used (p ≤ 0.05). No significant differences were found on the shoulder rotators strength or balance in males after training. Females exhibited unchanged strength values after practice, but there was a considerable decrease in the shoulder rotators balance of the non-dominant limb (p < 0.01 d = 0.366). This indicates that a single practice seems not to affect the shoulders strength and balance of adolescent swimmers, but this can be a gender specific phenomenon. While muscle-strengthening workout after the water session may be appropriate for males, it can be questionable regarding females. Swimming coaches should regularly assess shoulder strength levels in order to individually identify swimmers who may or may not be able to practice muscle strengthening after the water training.

scholarly journals Muscular Strength, Power, and Endurance Adaptations after Two Different University Fitness Classes

Sports ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 107
Author(s):  
Brittany S. Hollerbach ◽  
Sarah J. Cosgrove ◽  
Justin A. DeBlauw ◽  
Nattinee Jitnarin ◽  
Walker S. C. Poston ◽  
...  
Keyword(s):  
College Students ◽  
Body Composition ◽  
Muscular Strength ◽  
Vertical Jump ◽  
Bioelectrical Impedance ◽  
Impedance Analysis ◽  
Future Research ◽  
Significant Group ◽  
Muscle Strengthening ◽  
Maintain Body Weight

Physical activity (PA) classes help college students add weekly PA, which can help improve health and maintain body weight. Traditional weight training (TWT) can improve strength and aerobic capacity. High-intensity functional training such as CrossFit® (CF) provides time-efficient workouts with both muscle strengthening and aerobic exercises. Limited research has compared these classes for college students. We examined changes in muscular strength, power, and endurance as well as body composition. Participants were 85 healthy college students enrolled in TWT (n = 36, age 22.6 ± 4.1 years, 72.2% male) or CF (n = 49, age 21.8 ± 3.2 years, 55.1% male) classes meeting twice/wk for 8 weeks between October 2017 and May 2018. Baseline and posttest measurements included a vertical jump, grip strength, a 2 min push-up test, a 1 min squat test, height, weight, and a bioelectrical impedance analysis. Although no significant group × time interactions were found, there was a significant main effect of time for push-ups and squats (both p < 0.001). Participants enjoyed the classes and most planned to continue. Both classes improved muscular endurance although no significant differences were found between them. Activity classes provide college students with an option for increasing their weekly PA and help maintain body composition. Future research should examine the benefits from longer or more frequent classes.

scholarly journals Comparison of Lateral Perturbation-Induced Step Training and Hip Muscle Strengthening Exercise on Balance and Falls in Community-Dwelling Older Adults: A Blinded Randomized Controlled Trial

2021 ◽  
Author(s):  
Mark W Rogers ◽  
Robert A Creath ◽  
Vicki Gray ◽  
Janice Abarro ◽  
Sandy McCombe Waller ◽  
...  
Keyword(s):  
Older Adults ◽  
Controlled Trial ◽  
Step Length ◽  
Community Dwelling ◽  
Controlled Study ◽  
Balance Performance ◽  
Muscle Strengthening ◽  
Hip Muscle ◽  
Hip Abduction ◽  
Community Dwelling Older Adults

Abstract Background This factorial, assessor-blinded, randomized, and controlled study compared the effects of perturbation-induced step training (lateral waist-pulls), hip muscle strengthening, and their combination, on balance performance, muscle strength, and prospective falls among older adults. Methods Community-dwelling older adults were randomized to 4 training groups. Induced step training (IST, n = 25) involved 43 progressive perturbations. Hip abduction strengthening (HST, n = 25) utilized progressive resistance exercises. Combined training (CMB, n = 25) included IST and HST, and the control performed seated flexibility/relaxation exercises (SFR, n = 27). The training involved 36 sessions for a period of 12 weeks. The primary outcomes were the number of recovery steps and first step length, and maximum hip abduction torque. Fall frequency during 12 months after training was determined. Results Overall, the number of recovery steps was reduced by 31% and depended upon the first step type. IST and CMB increased the rate of more stable single lateral steps pre- and post-training than HST and SFR who used more multiple crossover and sequential steps. The improved rate of lateral steps for CMB exceeded the control (CMB/SFR rate ratio 2.68). First step length was unchanged, and HST alone increased hip torque by 25%. Relative to SFR, the fall rate ratios (falls/person/year) [95% confidence interval] were CMB 0.26 [0.07–0.90], IST 0.44 [0.18–1.08], and HST 0.30 (0.10–0.91). Conclusions Balance performance through stepping was best improved by combining perturbation and strength training and not strengthening alone. The interventions reduced future falls by 56%–74% over the control. Lateral balance perturbation training may enhance traditional programs for fall prevention.

Training-induced changes in muscle contraction patterns enhance exercise performance after short-term neuromuscular electrical stimulation

2020 ◽  
Vol 28 (4) ◽  
pp. 339-350
Author(s):  
Gökhan Umutlu ◽  
Nevzat Demirci ◽  
Nasuh Evrim Acar
Keyword(s):  
Electrical Stimulation ◽  
Muscle Contraction ◽  
Exercise Performance ◽  
Controlled Trial ◽  
Dynamic Control ◽  
Neuromuscular Electrical Stimulation ◽  
Interval Training ◽  
Time To Exhaustion ◽  
Muscle Strengthening ◽  
The Individual

BACKGROUND: Neuromuscular electrical stimulation (NMES) is a complementary tool for therapeutic exercise for muscle strengthening and may potentially enhance exercise performance. OBJECTIVE: To determine whether high-intensity interval training (HIIT) and continuous aerobic training (CA) coupled with NMES enhance the changes in the eccentric/concentric muscle contraction patterns of hamstring and quadriceps. METHODS: Forty-five healthy sedentary male participants performed cycling training 3 times per week for 8 weeks combined with/without NMES performed at a load equivalent to 65% and 120% of IVO2max (intensity associated with the achievement of maximal oxygen uptake). Anthropometrics, blood lactate measurements, IVO2max, TLimVO2max (time-to-exhaustion) and isokinetic strength parameters were measured at baseline and post-training using a randomized controlled trial. RESULTS: The conventional hamstring-to-quadriceps-ratio (HQR: Hcon/Qcon) at 60∘/s and the Dynamic Control Ratio (DCR: Hecc/Qcon) at 180∘/s significantly increased both in the dominant (D) and non-dominant (ND) limb in the HIIT + NMES group (p< 0.05). There was a positive significant correlation between the individual changes in D HQR at 60∘/s and IVO2max (r= 0.94, p= 0.005) and the DCR at 180∘/s and TLimVO2max (r= 0.90, p= 0.015), respectively. CONCLUSIONS: The increases in the eccentric muscle contraction and DCR following HIIT + NMES seem to improve fatigue tolerance, cause less fatigue and oxidative stress on the lower limb during pedaling at high intensities.

scholarly journals Questionnaire survey assessing the leisure-time physical activity of hospital doctors and awareness of UK physical activity recommendations

2019 ◽  
Vol 5 (1) ◽  
pp. e000534 ◽  
Author(s):  
Jennifer A Cuthill ◽  
Martin Shaw
Keyword(s):  
Physical Activity ◽  
Leisure Time Physical Activity ◽  
Teaching Hospitals ◽  
Muscle Strengthening ◽  
Scottish Population ◽  
Physical Activity Recommendations ◽  
Hospital Doctors ◽  
Type Of Exercise ◽  
The Uk ◽  
Activity Recommendations

ObjectiveThe UK Government Physical Activity Recommendations suggest that adults should aim for 150 min of physical activity each week to maintain health. We assessed the total volume, frequency, intensity and type of exercise taken by hospital doctors in association with their specialty, age and knowledge of the specific components of the recommendations.MethodsAn anonymous paper-based questionnaire was distributed to doctors working in the two largest teaching hospitals in Glasgow. 332 questionnaires were analysed with a response rate of 60.3%.Results239 (72%) doctors felt they exercised regularly with 212 (63.9%) meeting the recommended volume of cardiovascular activity, similar to an age and sex-matched cohort of the general Scottish population. Only 78 (23.5%) doctors achieved the recommended muscle-strengthening activities. 108 (35.5%) doctors were aware recommendations for activity existed but only 45 (13.6%) were able to state the recommended duration of activity per week. Doctors who were aware of the recommendations were more likely to personally achieve them (OR 1.802, 95% CI 1.104 to 2.941) although other additional factors may contribute.ConclusionAlthough this was a small study in two hospitals, our results suggest that hospital doctors are as active as the general public in the UK of a similar age. Eight years after implementation, knowledge of specific components of the current physical activity recommendations remains poor. Efforts to improve this prior to graduation, combined with improving confidence and competence in counselling practices and enhancing the opportunities for doctors to exercise, could translate into improved healthcare promotion.

scholarly journals THE THE EFFECT OF ZUMBA EXERCISE FOR INCREASING ABDOMINAL STRENGTH IN WOMEN WHO HAS BEEN GIVING BIRTH AT NORTH SANGLAH VILLAGE

2018 ◽  
Vol 6 (3) ◽  
pp. 9
Author(s):  
I Gusti Ayu Rea Vera Wijaya ◽  
A.A Nyoman Trisna Narta Dewi ◽  
Susy Purnawati
Keyword(s):  
Test Score ◽  
Abdominal Muscle ◽  
Wilcoxon Test ◽  
Abdominal Muscles ◽  
Exclusion Criteria ◽  
Muscle Strengthening ◽  
Group Design ◽  
Strengthening Exercise ◽  
Post Test ◽  
Abdominal Muscle Strength

ABSTRACT               Abdominal muscle strength decreasing could happen in women who has been giving birth. Zumba exercise is a modification of aerobic exercise with latin music and dance that could be used for muscle strengthening exercise. The purpose of the experiment is for knowing the effect of zumba exercise to increase the abdominal muscles strength in women who has been giving birth. The research is a pre-experimental with a pre-test and post-test one group design. The research has been done in North Sanglah Village with total of 18 samples that was chosen by the Curl Up test score and inclusion and exclusion criteria. Data analyzed using Saphiro Wilk test and  Wilcoxon Test. The results shown there are significant increasing of abdominal muscles strength after given the zumba exercise, p=0,000 (p<0,05). Zumba exercise could increase the abdominal muscles strength in samples with a 26,7% increasing percentage.   Keywords: zumba exercise, abdominal mucles strength decreasing.

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