Comparative Exercise Physiology

Abstract Therapeutic devices are increasingly used by therapists and horse owners. Percussive therapy (PCT) has been shown to effect blood flow, tissue oxygenation, increase range of motion (ROM) and improve recovery in humans. The aims of this study were to investigate the immediate effects of PCT on horses. Using a within-subjects randomised blinded cross-over design, twelve polo horses in training received two 12-min PCT sessions to the major superficial muscle groups, with the device on or off, 24-h apart. Pre- and post-intervention or sham sessions epaxial muscle mechanical nociceptive thresholds (MNT) and thoracic (T) profile dimensions were measured. Each horse performed four in-hand trot passes where spinal kinematics and gait symmetry were measured with inertial measurement units, plus stride length was analysed via 2D video recordings. There were no significant differences between MNT measures. Within the sham group, thoracic profile was significantly different pre and post at T18 (mean change -0.48 cm ± 1.03; ) and in the intervention group, there was a significant difference between the pre and post at T13 (mean change = −0.76 cm ± 1.35). There was no significant difference in stride length or gait symmetry at the poll, withers, and pelvis but differences in T6, T13, L3 and sacrum ROM in the sham group and T6 and T18 in the intervention group were seen. Overall, the application of PCT did not result in MNT or stride length changes in the intervention group when compared to the sham scenario although there were minor changes to thoracolumbar profile and spinal ROM. Further research assessing walk kinematics, ridden horse performance are recommended, along with assessing different PCT applications and other variables such as blood flow and neurophysiological responses that affect behaviour.

G. Tabor

N. Nason

C. Maddock

The effect percussive therapy on equine thoracic profile, mechanical nociceptive thresholds, spinal and limb kinematics and gait symmetry

冲击疗法对马胸部轮廓、机械痛觉阈值、脊柱和肢体运动学及步态对称性的影响

Abstract The ability to balance and generate muscle force are critical components of sprint performance. This study aimed to investigate the relationship between speed, lower limb muscle power, and dynamic balance in sprinters. A total of 75 sprinters, aged 18-30 years, from various sports academies and clubs in Belagavi, were recruited for this observational study. Dynamic balance was assessed using the Modified Star Excursion Balance Test (SEBT) and Multiple Single Leg Hop Stabilization Test (MSLHST), while muscle power was measured through the Sargent Jump Test. Speed was evaluated using the 30 m Sprint Test. Data analysis using Pearson’s correlation revealed a moderate positive correlation between speed and both dynamic balance (dominant leg r = 0.336, non-dominant leg r = 0.320) and muscle power (r = 0.32). Statistically significant correlations were observed between dynamic balance and speed (dominant leg , non-dominant leg ), and between muscle power and speed ( ). These findings suggest that improvements in dynamic balance and muscle power are associated with increased speed, highlighting their importance in sprint performance training.

D. Chivate

S. Chakkalathy

B. Motimath

Correlation between dynamic balance, lower limb muscle power, and speed performance in sprinters: a cross-sectional study

短跑运动员动态平衡、下肢肌肉力量与速度表现的相关性：一项横断面研究

Abstract Osteoporosis and body composition changes are prevalent musculoskeletal issues contributing to increased risk of frailty in older people. Weight bearing directly influences bone mineral density and body composition. Study aims to determine feasibility of high intensity interval training (HIIT) protocol on body composition parameters and bone mineral density (BMD) in older individuals. Twenty-four participants were randomly allocated to two study groups. The interventional group received supervised HIIT protocol while control group performed non-supervised brisk walking on alternate days over 3 months. Pre- and post-outcome measures were taken at baseline and 3 months which included, BMD using portable densitometer, body composition using a bioelectric impedance analyser, and basic anthropometry. Between group analysis demonstrated the interventional group to be significantly better than control group for all parameters ( ). In conclusion, HIIT protocol is feasible and effective method in improving body composition parameters and BMD in older individuals. Clinical Trials Registry-India with CTRI number CTRI/2022/01/039740.

P. Gurudut

S. Kumar

S. Hulamani

K. Vaidyanathan

N. Tendulkar

Feasibility of high intensity training protocol on body composition and bone mineral density in older individuals with central obesity – a preliminary study

高强度训练方案对中心性肥胖老年人身体成分和骨密度的可行性——一项初步研究

Abstract Exercise can be an effective non-pharmacological method to reduce the complications of menopause. This study aimed to investigate the effect of 8 weeks of circuit resistance training (CRT) on the levels of C-reactive protein (CRP), intercellular adhesion molecule 1 (ICAM-1), apolipoprotein A (Apo-A), Apo-B, and their ratio in sedentary postmenopausal women. Thirty postmenopausal women (age 54 ± 3 years, body mass index 27.6 ± 1.97 kg/m 2 ) without any serious diseases and no hormone therapy volunteered to participate in the research. The subjects were randomly divided into two groups: circuit resistance training (n = 15, CRT) and Control (n = 15) groups. Resistance training was performed for 8 weeks, 3 days a week, including 12 stations for the whole body in 3 sets and 8-12 repetitions. The exercises started at 40% of one repetition maximum (1RM) and gradually reached 75% of 1RM in the last week. Blood samples were taken before and 48 hours after the end of both interventions to measure CRP, ICAM-1, Apo-A-I, and Apo-B. To analyse the data, a two-way analysis of variance test was used. The CRT intervention by reducing Apo-B (−8.9% vs −0.1%; change percentage relative to pre-to-post values in each group) and increasing Apo-A1 (+4.7% vs −0.1%) led to a significant increase in the Apo-B/A ratio (−13.0% vs −0.08%) compared to the Control group. In addition, a substantial decrease in the inflammatory levels of CRP (−21.0% vs +6.3%) and ICAM-1 (−22.7% vs +1.6%) was observed after 8 weeks of CRT compared to the Control group. The observed changes were consistent with a reduction in body mass and an improvement in the waist-hip ratio (WHR). The findings indicated that CRT could reduce the complications of menopause by reducing inflammatory markers and improving the lipid profile.

E. Shakoor

A. Qassemian

S. Shams

S. Amani-Shalamzari

The effect of eight weeks of circuit resistance training on Apo-B/A ratio and inflammatory status of sedentary postmenopausal women

八周循环阻力训练对久坐绝经后女性Apo-B/A比值及炎症状态的影响

Abstract Exercise intolerance may be a primary symptom of myxomatous mitral valve disease (MMVD) and a significant factor in reducing the quality of a dog’s life. Aerobic training effectively improves oxygen uptake and life expectancy in human patients with chronic heart failure. Lactate threshold (LT) is used to prescribe training programs. We conducted a study with dogs diagnosed with asymptomatic MMVD (stage B1), using the velocity corresponding to the visual lactate threshold (VLTv) and an eight-week submaximal training program (STP), three times a week, with each session lasting 30 min, to improve their aerobic fitness. The dogs were assigned into two groups: a healthy control group and a MMVD group (stage B1). The treadmill-based graded exercise test (GXT) was used to determine the lactate-velocity curve (LVC) inflexion point. We utilised the velocity corresponding to 70% VLTv as the external load STP, representing a training zone between 145 and 157 bpm. Before the STP, VLTv and maximum velocity (Vmax) were lower in B1 dogs compared with the healthy group. The VLTv increased in the B1 dogs, resulting in rightward shifts of the LVC. The VLT values for healthy dogs were 3.62 ± 0.90 m/s and 4.75 ± 0.6 m/s; for B1 dogs were 3.03 ± 0.6 m/s and 3.8 ± 0.75 m/s in the pre-STP and post-STP. The Vmax values were 4.50 ± 0.70 m/s and 4.75 ± 1.04 m/s for healthy dogs, and 4.0 ± 0.53 m/s and 4.66 ± 0.74 m/s for B1 dogs. In both groups, changes in the relationship between lactatemia and exercise work may indicate improvements in aerobic and anaerobic capacities. VLTv, as an external training loading, should be considered when prescribing tailored training programs for dogs with asymptomatic myxomatous mitral valve disease to improve their muscular and cardiovascular function and exercise tolerance.

A.Z. Restan

F.K. Adams

A.P.P.A. Tristão

B.A. Loureiro

T. Sgarbiero

G.V. Ramos

M.G. Sousa

A.A. Camacho

G.C. Ferraz

Prescribing submaximal training based on the lactate threshold improved aerobic fitness in dogs with preclinical myxomatous mitral valve disease

基于乳酸阈值的亚极限训练处方改善了患有前临床性黏液瘤性二尖瓣疾病的犬的有氧健身

Abbreviation	Comp. Exerc. Physiol.
Journal Impact	0.64
Quartiles(Global)	VETERINARY SCIENCES(Q3)

ISSN	1755-2540, 1755-2559
h-index	19

Publication Information	Publisher: Brill Wageningen Academic，Publishing cycle: ，Journal Type: journal，Open Access Journals: No
Basic data	Year of publication: 2012，Proportion of original research papers: 96.00%，Self Citation Rate:16.70%， Gold OA Rate: 5.23%

Comparative Exercise Physiology

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The effect percussive therapy on equine thoracic profile, mechanical nociceptive thresholds, spinal and limb kinematics and gait symmetry

Correlation between dynamic balance, lower limb muscle power, and speed performance in sprinters: a cross-sectional study

Feasibility of high intensity training protocol on body composition and bone mineral density in older individuals with central obesity – a preliminary study

The effect of eight weeks of circuit resistance training on Apo-B/A ratio and inflammatory status of sedentary postmenopausal women

Prescribing submaximal training based on the lactate threshold improved aerobic fitness in dogs with preclinical myxomatous mitral valve disease

The effect percussive therapy on equine thoracic profile, mechanical nociceptive thresholds, spinal and limb kinematics and gait symmetry

Correlation between dynamic balance, lower limb muscle power, and speed performance in sprinters: a cross-sectional study

Feasibility of high intensity training protocol on body composition and bone mineral density in older individuals with central obesity – a preliminary study

The effect of eight weeks of circuit resistance training on Apo-B/A ratio and inflammatory status of sedentary postmenopausal women

Prescribing submaximal training based on the lactate threshold improved aerobic fitness in dogs with preclinical myxomatous mitral valve disease