Effect of Sexual Intercourse on Lower Extremity Muscle Force in Strength-Trained Men

IntroductionThe question of whether sexual intercourse can harm athletic performance is a long-debated topic since first sport competitions were invented. Therefore, due to the lack of solid evidence, we aimed to evaluate the effects of sexual intercourse on muscle training performance.Materials and methodsPhysically and sexually active, 50 men (age=29.3±1.14 years) were enrolled in the study. Participants completed three weight training sessions and all sessions were at the same time of the day. The maximum weight was adjusted in the first session. In the second and third sessions, they performed five repetitions of the squat with their maximum weight for each set with a total of five sets after participating in and abstaining from sexual intercourse the night before, respectively. The duration of sexual intercourse was measured with a stopwatch.ResultsThe mean duration of sex was measured to be 13.8±3.61 min. Furthermore, the mean lifted weight before sex was calculated to be 109.4±11.41 kg and the mean lifted weight after sex was calculated to be 107±11.05 kg. According to obtained data, sexual intercourse has a significant detrimental effect on maximum weight in squat training (p=0001).ConclusionResults demonstrate that sexual intercourse within 24 hours before exercise have detrimental effect on lower extremity muscle force, which suggests that restricting sexual activity before a short-term activity may be necessary.

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Lower-Extremity Muscle Force and Balance Performance in Adults Aged 65 Years and Older

Physical Therapy ◽

10.1093/ptj/79.12.1177 ◽

1999 ◽

Vol 79 (12) ◽

pp. 1177-1185 ◽

Cited By ~ 177

Author(s):

Marguerite Elizabeth Daubney ◽

Elsie G Culham

Keyword(s):

Lower Extremity ◽

Postural Control ◽

Muscle Force ◽

Community Dwelling ◽

Plantar Flexor ◽

Balance Performance ◽

Postural Control System ◽

Functional Balance ◽

Lower Extremity Muscle ◽

Functional Reach Test

Abstract Background and Purpose.Measures of postural control may be useful for determining fall risk in older people and for determining the outcomes of treatments aimed at improving balance. Commonly used tools measure the output of the postural control system. The purpose of this study was to determine the degree to which one component of postural control (muscle force) contributes to scores on 3 functional balance measures. Subjects. Fifty community-dwelling volunteers between 65 and 91 years of age (X̄=74.82, SD=6.11) participated. Based on their histories, 11 subjects were classified as being at risk for falling. Methods. Measures were the Berg Balance Scale (BBS), the Functional Reach Test (FRT), and the Timed Get Up & Go Test (GUG). The force generated by 12 lower-extremity muscle groups was measured using a handheld dynamometer. Results. In the group reporting no falls, dorsiflexor and subtalar evertor force accounted for 58% of the score on the BBS, ankle plantar-flexor and subtalar invertor force accounted for 48.4% of the score on the GUG, and ankle plantar-flexor force accounted for 13% of the score on the FRT. Ankle dorsiflexor and hip extensor forces were lower in subjects reporting falls, and force of the ankle dorsiflexors predicted fall status. Conclusion and Discussion. Distal muscle force measures may be able to contribute to the prediction of functional balance scores; however, the muscles involved in the prediction differ depending on the measure of balance.

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Influence of Lower-extremity Muscle Force, Muscle Mass and Asymmetry in Knee Extension Force on Gait Ability in Community-dwelling Elderly Women

Journal of Physical Therapy Science ◽

10.1589/jpts.18.73 ◽

2006 ◽

Vol 18 (1) ◽

pp. 73-79 ◽

Cited By ~ 13

Author(s):

Hayato Nakao ◽

Takahiro Yoshikawa ◽

Tatsuya Mimura ◽

Taketaka Hara ◽

Katsuo Nishimoto ◽

...

Keyword(s):

Lower Extremity ◽

Muscle Mass ◽

Muscle Force ◽

Elderly Women ◽

Knee Extension ◽

Community Dwelling ◽

Lower Extremity Muscle ◽

Extension Force

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The Influence of Lower-Extremity Muscle Force on Gait Characteristics in Individuals With Below-Knee Amputations Secondary to Vascular Disease

Physical Therapy ◽

10.1093/ptj/76.4.369 ◽

1996 ◽

Vol 76 (4) ◽

pp. 369-377 ◽

Cited By ~ 33

Author(s):

Christopher M Powers ◽

Lara A Boyd ◽

Catherine A Fontaine ◽

Jacquelin Perry

Keyword(s):

Lower Extremity ◽

Vascular Disease ◽

Muscle Force ◽

Gait Characteristics ◽

Lower Extremity Muscle

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Clinical Rehabilitation Effect of Postoperative Lower-Limb Training on the Patients Undergoing OLIF Surgery: A Retrospective Study

Pain Research and Management ◽

10.1155/2020/1065202 ◽

2020 ◽

Vol 2020 ◽

pp. 1-6

Author(s):

Haoming Wang ◽

Yachong Huo ◽

Yachao Zhao ◽

Botong Zhang ◽

Dalong Yang ◽

...

Keyword(s):

Lower Extremity ◽

Lower Limb ◽

Muscle Force ◽

Statistical Significance ◽

Intervention Group ◽

Control Group ◽

Postoperative Rehabilitation ◽

Lower Extremity Muscle ◽

Rehabilitation Exercise

Background. In this study, it was aimed to investigate the clinical rehabilitation effect of lower-limb training on the patients that undergo oblique lumbar interbody fusion (OLIF) procedures. Methods. The eligible participants undergoing OLIF procedures between 01/2017 and 07/2019 were identified. All the patients underwent one-segment fusion operation (L3-4 or L4-5). Based on whether the participants received postoperative rehabilitation training, they were divided into two groups: intervention group and control group. Postoperatively, the participants in the intervention group were trained with lower-extremity rehabilitation exercise and maintained for three months. All participants got reexamined at the first postoperative week, the second postoperative week, the first postoperative month, and the third postoperative month (last follow-up). Comparisons were made in terms of the lower-extremity muscle force, visual analogue scale (VAS) score, lumbar JOA score, Oswestry disability index (ODI), the incidence of deep venous thrombosis (DVT), and patient satisfaction. Results. Seventy-seven participants in the intervention group (32 males and 45 females) and 82 in the control group (39 males and 43 females) were incorporated in this study. The median age of the participants was 57 years (39∼73) in the intervention group and 54 years (35∼71) in the control group. No statistical significance between the two groups was found (P>0.05). ODI score was less in the intervention group as compared to the control group in the first week after surgery (P=0.029). VAS and JOA scores were better in the intervention group in the first two weeks after surgery (P<0.05). DVT incidence in the intervention group was lower than the control group at final follow-up (P=0.037). Both group participants have achieved good grading in muscle force rehabilitation but no significant differences between the two groups. Additionally, satisfaction was higher in the intervention group than the control group. Conclusions. In summary, postoperative lower-extremity rehabilitation exercise can effectively accelerate patients’ health recovery from the OLIF surgery and increase their satisfaction.

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